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NCP302, NCP303 Voltage Detector Series with Programmable Delay
The NCP302 and NCP303 series are second generation ultra-low current voltage detectors that contain a programmable time delay generator. These devices are specifically designed for use as reset controllers in portable microprocessor based systems where extended battery life is paramount. Each series features a highly accurate undervoltage detector with hysteresis and an externally programmable time delay generator. This combination of features prevents erratic system reset operation. The NCP302 series consists of complementary output devices that are available with either an active high or active low reset. The NCP303 series has an open drain N-Channel output with an active low reset output.
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5 1 THIN SOT23-5/TSOP-5/SC59-5 CASE 483
* * * * * * * * * * *
Quiescent Current of 0.5 mA Typical High Accuracy Undervoltage Threshold of 2.0% Externally Programmable Time Delay Generator Wide Operating Voltage Range of 0.8 V to 10 V Complementary or Open Drain Output Active Low or Active High Reset Pb-Free Packages are Available
PIN CONNECTIONS AND MARKING DIAGRAM
Reset Output Input Ground 1 xxxYW 2 3 (Top View) xxx =Specific Device Code Y = Year W = Work Week 5 CD
4 N.C.
Typical Applications
Microprocessor Reset Controller Low Battery Detection Power Fail Indicator Battery Backup Detection
ORDERING INFORMATION
See detailed ordering and shipping information in the ordering information section on page 22 of this data sheet.
NCP302xSNxxT1 Complementary Output Configuration 2 Input 2
NCP303LSNxxT1 Open Drain Output Configuration Input 1 Reset Output
RD
1
RD
Vref
*
3 GND 5 CD
Reset Output
Vref
3
GND 5
CD
* Inverter for active low devices.
* Buffer for active high devices.
This device contains 28 active transistors.
Figure 1. Representative Block Diagrams
(c) Semiconductor Components Industries, LLC, 2005
1
January, 2005 - Rev. 14.5
Publication Order Number: NCP302/D
NCP302, NCP303
MAXIMUM RATINGS
Rating Input Power Supply Voltage (Pin 2) Symbol Vin Value 12 Unit V V V
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Delay Capacitor Pin Voltage (Pin 5) Output Voltage (Pin 1) Complementary, NCP302 N-Channel Open Drain, NCP303 Output Current (Pin 1) (Note 2) VCD -0.3 to Vin + 0.3 -0.3 to Vin + 0.3 -0.3 to 12 70 VOUT IOUT mA Thermal Resistance Junction-to-Air Maximum Junction Temperature RqJA TJ 250 C/W C C C +125 Operating Ambient Temperature Range Storage Temperature Range TA -40 to +85 Tstg -55 to +150 1 Moisture Sensitivity Level (TA = 235C) Latchup Performance Positive Negative MSL ILATCHUP mA 200 200 Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. 1. This device series contains ESD protection and exceeds the following tests: Human Body Model 2000 V per MIL-STD-883, Method 3015. Machine Model Method 200 V. 2. The maximum package power dissipation limit must not be exceeded.
P
D
+
T *T J(max) A R qJA
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NCP302, NCP303
ELECTRICAL CHARACTERISTICS (For all values TA = 25C, unless otherwise noted.)
Characteristic NCP302/3 - 0.9 Symbol Min Typ Max Unit
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Detector Threshold (Pin 2, Vin Decreasing) VDET- VHYS Iin 0.882 0.027 - - - - - 0.900 0.045 0.20 0.45 - 0.918 0.063 0.6 1.2 10 V V Detector Threshold Hysteresis (Pin 2, Vin Increasing) Supply Current (Pin 2) (Vin = 0.8 V) (Vin = 2.9 V) mA Maximum Operating Voltage (Pin 2) Minimum Operating Voltage (Pin 2) (TA = -40C to 85C) Vin(max) Vin(min) IOUT V V 0.55 0.65 0.70 0.80
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Reset Output Current (Pin 1, Active Low `L' Suffix Devices) Nch Sink Current, NCP302, NCP303 (VOUT = 0.05V, Vin = 0.70V) (VOUT = 0.50V, Vin = 0.85V) Pch Source Current, NCP302 (VOUT = 2.4V, Vin = 4.5V) mA 0.01 0.05 1.0 IOUT 0.05 0.50 6.0 - - - mA
AAA A A A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAA A
Reset Output Current (Pin 1, Active High `H' Suffix Devices) Nch Sink Current, NCP302, NCP303 (VOUT = 0.5 V, Vin = 1.5 V) Pch Source Current, NCP302 (VOUT = 0.4 V, Vin = 0.7 V) (VOUT = GND, Vin = 0.8 V) 1.05 2.5 - - - V 0.50 ICD 2.0 10 0.5 0.67 120 300 1.0 0.84 mA - - 0.011 0.014 VTCD 0.04 0.08 CD Delay Pin Threshold Voltage (Pin 5) (Vin = 0.99 V) Delay Capacitor Pin Sink Current (Pin 5) (Vin = 0.7 V, VCD = 0.1V) (Vin = 0.85 V, VCD = 0.5V) Delay Pullup Resistance (Pin 5)
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RD 2.0 MW NCP302/3 - 1.8 Detector Threshold (Pin 2, Vin Decreasing) VDET- VHYS Iin 1.764 0.054 - - - - - 1.80 1.836 0.126 0.7 1.3 10 V V Detector Threshold Hysteresis (Pin 2, Vin Increasing) Supply Current (Pin 2) (Vin = 1.7 V) (Vin = 3.8 V) 0.090 0.23 0.48 - mA Maximum Operating Voltage (Pin 2) Minimum Operating Voltage (Pin 2) (TA = -40C to 85C) Vin(max) Vin(min) IOUT V V 0.55 0.65 0.70 0.80 Reset Output Current (Pin 1, Active Low `L' Suffix Devices) Nch Sink Current, NCP302, NCP303 (VOUT = 0.05V, Vin = 0.70V) (VOUT = 0.50V, Vin = 1.5V) Pch Source Current, NCP302 (VOUT = 2.4V, Vin = 4.5V) mA 0.01 1.0 1.0 IOUT 0.05 2.0 6.0 - - - mA
AAA A A A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAA A
Reset Output Current (Pin 1, Active High `H' Suffix Devices) Nch Sink Current, NCP302, NCP303 (VOUT = 0.5 V, Vin = 5.0 V) Pch Source Current, NCP302 (VOUT = 0.4 V, Vin = 0.7 V) (VOUT = GND, Vin = 1.5 V) 6.3 11 - - - 0.011 0.525 0.04 0.6
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NCP302, NCP303
ELECTRICAL CHARACTERISTICS (continued) (For all values TA = 25C, unless otherwise noted.)
Characteristic NCP302/3 - 1.8 CD Delay Pin Threshold Voltage (Pin 5) (Vin = 1.98 V) Delay Capacitor Pin Sink Current (Pin 5) (Vin = 0.7 V, VCD = 0.1V) (Vin = 1.5 V, VCD = 0.5V) Delay Pullup Resistance (Pin 5) VTCD 0.99 ICD 2.0 200 0.5 1.34 120 1600 1.0 1.68 mA - - V Symbol Min Typ Max Unit
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RD 2.0 MW NCP302/3 - 2.0 Detector Threshold (Pin 2, Vin Decreasing) VDET- VHYS Iin 1.960 0.06 - - - - - 2.00 0.10 0.23 0.48 - 2.040 0.14 0.8 1.3 10 V V Detector Threshold Hysteresis (Pin 2, Vin Increasing) Supply Current (Pin 2) (Vin = 1.9 V) (Vin = 4.0 V) mA Maximum Operating Voltage (Pin 2) Minimum Operating Voltage (Pin 2) (TA = -40C to 85C) Vin(max) Vin(min) IOUT V V 0.55 0.65 0.70 0.80 Reset Output Current (Pin 1, Active Low `L' Suffix Devices) Nch Sink Current, NCP302, NCP303 (VOUT = 0.05V, Vin = 0.70V) (VOUT = 0.50V, Vin = 1.5V) Pch Source Current, NCP302 (VOUT = 2.4V, Vin = 4.5V) mA 0.01 1.0 1.0 IOUT 0.05 2.0 6.0 - - - mA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A
Reset Output Current (Pin 1, Active High `H' Suffix Devices) Nch Sink Current, NCP302, NCP303 (VOUT = 0.5 V, Vin = 5.0 V) Pch Source Current, NCP302 (VOUT = 0.4 V, Vin = 0.7 V) (VOUT = GND, Vin = 1.5 V) 6.3 11 - - - V 1.10 ICD 2.0 200 0.5 1.49 120 1600 1.0 1.87 mA - - 0.011 0.525 VTCD 0.04 0.6 CD Delay Pin Threshold Voltage (Pin 5) (Vin = 2.2 V) Delay Capacitor Pin Sink Current (Pin 5) (Vin = 0.7 V, VCD = 0.1V) (Vin = 1.5 V, VCD = 0.5V) Delay Pullup Resistance (Pin 5)
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RD 2.0 MW NCP302/3- 2.7 Detector Threshold (Pin 2, Vin Decreasing) VDET- VHYS Iin 2.646 0.081 - - - - - 2.700 0.135 0.26 0.46 - 2.754 0.189 0.8 1.3 10 V V Detector Threshold Hysteresis (Pin 2, Vin Increasing) Supply Current (Pin 2) (Vin = 2.6 V) (Vin = 4.7 V) mA Maximum Operating Voltage (Pin 2) Minimum Operating Voltage (Pin 2) (TA = -40C to 85C) Vin(max) Vin(min) IOUT V V 0.55 0.65 0.70 0.80 Reset Output Current (Pin 1, Active Low `L' Suffix Devices) Nch Sink Current, NCP302, NCP303 (VOUT = 0.05V, Vin = 0.70V) (VOUT = 0.50V, Vin = 1.5V) Pch Source Current, NCP302 (VOUT = 2.4V, Vin = 4.5V) mA 0.01 1.0 1.0 0.05 2.0 6.0 - - -
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NCP302, NCP303
ELECTRICAL CHARACTERISTICS (continued) (For all values TA = 25C, unless otherwise noted.)
Characteristic NCP302/3- 2.7 Symbol Min Typ Max Unit
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Reset Output Current (Pin 1, Active High `H' Suffix Devices) Nch Sink Current, NCP302, NCP303 (VOUT = 0.5 V, Vin = 5.0 V) Pch Source Current, NCP302 (VOUT = 0.4 V, Vin = 0.7 V) (VOUT = GND, Vin = 1.5 V) IOUT mA 6.3 11 - - - V 1.49 ICD 2.0 200 0.5 2.01 120 1600 1.0 2.53 mA - - 0.011 0.525 VTCD 0.04 0.6 CD Delay Pin Threshold Voltage (Pin 5) (Vin = 2.97 V) Delay Capacitor Pin Sink Current (Pin 5) (Vin = 0.7 V, VCD = 0.1V) (Vin = 1.5 V, VCD = 0.5V) Delay Pullup Resistance (Pin 5)
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RD 2.0 MW NCP302/3 - 3.0 Detector Threshold (Pin 2, Vin Decreasing) VDET- VHYS Iin 2.94 0.09 - - - - - 3.00 0.15 0.27 0.47 - 3.06 0.21 0.9 1.3 10 V V Detector Threshold Hysteresis (Pin 2, Vin Increasing) Supply Current (Pin 2) (Vin = 2.87 V) (Vin = 5.0 V) mA Maximum Operating Voltage (Pin 2) Minimum Operating Voltage (Pin 2) (TA = -40C to 85C) Vin(max) Vin(min) IOUT V V 0.55 0.65 0.70 0.80 Reset Output Current (Pin 1, Active Low `L' Suffix Devices) Nch Sink Current, NCP302, NCP303 (VOUT = 0.05V, Vin = 0.70V) (VOUT = 0.50V, Vin = 1.5V) Pch Source Current, NCP302 (VOUT = 2.4V, Vin = 4.5V) mA 0.01 1.0 1.0 IOUT 0.05 2.0 6.0 - - - mA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A
Reset Output Current (Pin 1, Active High `H' Suffix Devices) Nch Sink Current, NCP302, NCP303 (VOUT = 0.5 V, Vin = 5.0 V) Pch Source Current, NCP302 (VOUT = 0.4 V, Vin = 0.7 V) (VOUT = GND, Vin = 1.5 V) 6.3 11 - - - V 1.65 ICD 2.0 200 0.5 2.23 120 1600 1.0 2.81 mA - - 0.011 0.525 VTCD 0.04 0.6 CD Delay Pin Threshold Voltage (Pin 5) (Vin = 3.3 V) Delay Capacitor Pin Sink Current (Pin 5) (Vin = 0.7 V, VCD = 0.1V) (Vin = 1.5 V, VCD = 0.5V) Delay Pullup Resistance (Pin 5)
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RD 2.0 MW NCP302/3 - 4.5 Detector Threshold (Pin 2, Vin Decreasing) VDET- VHYS Iin 4.410 0.135 - - - - - 4.500 0.225 0.33 0.52 - 4.590 0.315 1.0 1.4 10 V V Detector Threshold Hysteresis (Pin 2, Vin Increasing) Supply Current (Pin 2) (Vin = 4.34 V) (Vin = 6.5 V) mA Maximum Operating Voltage (Pin 2) Minimum Operating Voltage (Pin 2) (TA = -40C to 85C) Vin(max) Vin(min) V V 0.55 0.65 0.70 0.80
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NCP302, NCP303
ELECTRICAL CHARACTERISTICS (continued) (For all values TA = 25C, unless otherwise noted.)
Characteristic NCP302/3 - 4.5 Symbol Min Typ Max Unit
AAA A A A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAA A
Reset Output Current (Pin 1, Active Low `L' Suffix Devices) Nch Sink Current, NCP302, NCP303 (VOUT = 0.05V, Vin = 0.70V) (VOUT = 0.50V, Vin = 1.5V) Pch Source Current, NCP302 (VOUT = 5.9V, Vin = 8.0V) IOUT mA 0.01 1.0 1.5 IOUT 0.05 2.0 10.5 - - - mA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A
Reset Output Current (Pin 1, Active High `H' Suffix Devices) Nch Sink Current, NCP302, NCP303 (VOUT = 0.5 V, Vin = 5.0 V) Pch Source Current, NCP302 (VOUT = 0.4 V, Vin = 0.7 V) (VOUT = GND, Vin = 1.5 V) 6.3 11 - - - V 2.25 ICD 2.0 200 0.5 3.04 120 1600 1.0 3.83 mA - - 0.011 0.525 VTCD 0.04 0.6 CD Delay Pin Threshold Voltage (Pin 5) (Vin = 4.95 V) Delay Capacitor Pin Sink Current (Pin 5) (Vin = 0.7 V, VCD = 0.1V) (Vin = 1.5 V, VCD = 0.5V) Delay Pullup Resistance (Pin 5)
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RD 2.0 MW NCP302/3 - 4.7 Detector Threshold (Pin 2, Vin Decreasing) VDET- VHYS Iin 4.606 0.141 - - - - - 4.70 4.794 0.329 1.0 1.4 10 V V Detector Threshold Hysteresis (Pin 2, Vin Increasing) Supply Current (Pin 2) (Vin = 4.54 V) (Vin = 6.7 V) 0.235 0.34 0.53 - mA Maximum Operating Voltage (Pin 2) Minimum Operating Voltage (Pin 2) (TA = -40C to 85C) Vin(max) Vin(min) IOUT V V 0.55 0.65 0.70 0.80 Reset Output Current (Pin 1, Active Low `L' Suffix Devices) Nch Sink Current, NCP302, NCP303 (VOUT = 0.05V, Vin = 0.70V) (VOUT = 0.50V, Vin = 1.5V) Pch Source Current, NCP302 (VOUT = 5.9V, Vin = 8.0V) mA 0.01 1.0 1.5 IOUT 0.05 2.0 10.5 - - - mA
AAA A A A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAA A
Reset Output Current (Pin 1, Active High `H' Suffix Devices) Nch Sink Current, NCP302, NCP303 (VOUT = 0.5 V, Vin = 5.0 V) Pch Source Current, NCP302 (VOUT = 0.4 V, Vin = 0.7 V) (VOUT = GND, Vin = 1.5 V) 6.3 11 - - - V 2.59 ICD 2.0 200 0.5 3.49 120 1600 1.0 4.40 mA - - 0.011 0.525 VTCD 0.04 0.6 CD Delay Pin Threshold Voltage (Pin 5) (Vin = 5.17 V) Delay Capacitor Pin Sink Current (Pin 5) (Vin = 0.7 V, VCD = 0.1V) (Vin = 1.5 V, VCD = 0.5V) Delay Pullup Resistance (Pin 5)
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RD 2.0 MW
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NCP302, NCP303
NCP302L VDET+ + 2.0 V VDET+ + 2.0 V NCP303L
Input Voltage, Pin 2 0.7 V GND VDET+ + 2.0 V 0.7 V GND 5.0 V
Reset Output Voltage, Pin 1
VDET+ + 2.0 V 2
2.5 V
GND tD1 tD2
GND tD1 tD2
NCP302 and NCP303 series are measured with a 10 pF capacitive load. NCP303 has an additional 470 k pullup resistor connected from the reset output to +5.0 V. The reset output voltage waveforms are shown for the active low `L' devices. Output time delay tD1 and tD2 are dependent upon the delay capacitance. Refer to Figures 12, 13, and 14. The upper detector threshold, VDET+ is the sum of the lower detector threshold, VDET- plus the input hysteresis, VHYS.
Figure 2. Measurement Conditions for tD1 and tD2
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NCP302, NCP303
Table 1. ELECTRICAL CHARACTERISTIC TABLE FOR 0.9 - 4.9 V
Supply Current NCP302 Series Detector Threshold VDET- (V) Part Number NCP302LSN09T1 NCP302LSN10T1 NCP302LSN11T1 NCP302LSN12T1 NCP302LSN13T1 NCP302LSN14T1 NCP302LSN15T1 NCP302LSN16T1 NCP302LSN17T1 NCP302LSN18T1 NCP302LSN19T1 NCP302LSN20T1 NCP302LSN21T1 NCP302LSN22T1 NCP302LSN23T1 NCP302LSN24T1 NCP302LSN25T1 NCP302LSN26T1 NCP302LSN27T1 NCP302LSN28T1 NCP302LSN29T1 NCP302LSN30T1 NCP302LSN31T1 NCP302LSN32T1 NCP302LSN33T1 NCP302LSN34T1 NCP302LSN35T1 NCP302LSN36T1 NCP302LSN37T1 NCP302LSN38T1 NCP302LSN39T1 NCP302LSN40T1 NCP302LSN41T1 NCP302LSN42T1 NCP302LSN43T1 NCP302LSN44T1 NCP302LSN45T1 NCP302LSN46T1 NCP302LSN47T1 NCP302LSN48T1 NCP302LSN49T1 3. 4. 5. 6. Condition 1: Condition 2: Condition 3: Condition 4: Condition 4: 7. Condition 5: Min 0.882 0.980 1.078 1.176 1.274 1.372 1.470 1.568 1.666 1.764 1.862 1.960 2.058 2.156 2.254 2.352 2.450 2.548 2.646 2.744 2.842 2.940 3.038 3.136 3.234 3.332 3.430 3.528 3.626 3.724 3.822 3.920 4.018 4.116 4.214 4.312 4.410 4.508 4.606 4.704 4.802 Typ 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 Max 0.918 1.020 1.122 1.224 1.326 1.428 1.530 1.632 1.734 1.836 1.938 2.040 2.142 2.244 2.346 2.448 2.550 2.652 2.754 2.856 2.958 3.060 3.162 3.264 3.366 3.468 3.570 3.672 3.774 3.876 3.978 4.080 4.182 4.284 4.386 4.488 4.590 4.692 4.794 4.896 4.998 Min 0.027 0.030 0.033 0.036 0.039 0.042 0.045 0.048 0.051 0.054 0.057 0.060 0.063 0.066 0.069 0.072 0.075 0.078 0.081 0.084 0.087 0.090 0.093 0.096 0.099 0.102 0.105 0.108 0.111 0.114 0.117 0.120 0.123 0.126 0.129 0.132 0.135 0.138 0.141 0.144 0.147 Detector Threshold Hysteresis VHYS (V) Typ 0.045 0.050 0.055 0.060 0.065 0.070 0.075 0.080 0.085 0.090 0.095 0.100 0.105 0.110 0.115 0.120 0.125 0.130 0.135 0.140 0.145 0.150 0.155 0.160 0.165 0.170 0.175 0.180 0.185 0.190 0.195 0.200 0.205 0.210 0.215 0.220 0.225 0.230 0.235 0.240 0.245 Max 0.063 0.070 0.077 0.084 0.091 0.098 0.105 0.112 0.119 0.126 0.133 0.140 0.147 0.154 0.161 0.168 0.175 0.182 0.189 0.196 0.203 0.210 0.217 0.224 0.231 0.238 0.245 0.252 0.259 0.266 0.273 0.280 0.287 0.294 0.301 0.308 0.315 0.322 0.329 0.336 0.343 0.4 0.6 3.0 2.0 1.0 Vin Low Iin (mA) (1) Typ 0.3 Vin High Iin (mA) (2) Typ 0.5 Nch Sink Current Vin Low IOUT (mA) (3) Typ 0.05 Vin High IOUT (mA) (4) Typ 0.5 Pch Source So rce Current IOUT (mA) (5) Typ 2.0
0.9 -- 2.9 V, Vin = VDET- - 0.10 V; 3.0 -- 3.9 V, Vin = VDET- - 0.13 V; 4.0 -- 4.9 V, Vin = VDET- - 0.16 V 0.9 -- 4.9 V, Vin = VDET- + 2.0 V 0.9 -- 4.9 V, Vin = 0.7 V, VOUT = 0.05 V, Active Low `L' Suffix Devices 0.9 -- 1.0 V, Vin = 0.85 V, VOUT = 0.5 V; 1.1 -- 1.5 V, Vin = 1.0 V, VOUT = 0.5 V; 1.6 -- 4.9 V, Vin = 1.5 V, VOUT = 0.5 V, Active Low `L' Suffix Devices 0.9 -- 3.9 V, Vin = 4.5 V, VOUT = 2.4 V; 4.0 -- 4.9 V, Vin = 8.0 V, VOUT = 5.9 V, Active Low `L' Suffix Devices
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NCP302, NCP303
Table 2. ELECTRICAL CHARACTERISTIC TABLE FOR 0.9 - 4.9 V
Supply Current NCP302 Series Detector Threshold VDET- (V) Part Number NCP302HSN09T1 NCP302HSN10T1 NCP302HSN11T1 NCP302HSN12T1 NCP302HSN13T1 NCP302HSN14T1 NCP302HSN15T1 NCP302HSN16T1 NCP302HSN17T1 NCP302HSN18T1 NCP302HSN19T1 NCP302HSN20T1 NCP302HSN21T1 NCP302HSN22T1 NCP302HSN23T1 NCP302HSN24T1 NCP302HSN25T1 NCP302HSN26T1 NCP302HSN27T1 NCP302HSN28T1 NCP302HSN29T1 NCP302HSN30T1 NCP302HSN31T1 NCP302HSN32T1 NCP302HSN33T1 NCP302HSN34T1 NCP302HSN35T1 NCP302HSN36T1 NCP302HSN37T1 NCP302HSN38T1 NCP302HSN39T1 NCP302HSN40T1 NCP302HSN41T1 NCP302HSN42T1 NCP302HSN43T1 NCP302HSN44T1 NCP302HSN45T1 NCP302HSN46T1 NCP302HSN47T1 NCP302HSN48T1 NCP302HSN49T1 8. Condition 1: 9. Condition 2: 10. Condition 3: 11. Condition 4: 12. Condition 5: Min 0.882 0.980 1.078 1.176 1.274 1.372 1.470 1.568 1.666 1.764 1.862 1.960 2.058 2.156 2.254 2.352 2.450 2.548 2.646 2.744 2.842 2.940 3.038 3.136 3.234 3.332 3.430 3.528 3.626 3.724 3.822 3.920 4.018 4.116 4.214 4.312 4.410 4.508 4.606 4.704 4.802 Typ 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 Max 0.918 1.020 1.122 1.224 1.326 1.428 1.530 1.632 1.734 1.836 1.938 2.040 2.142 2.244 2.346 2.448 2.550 2.652 2.754 2.856 2.958 3.060 3.162 3.264 3.366 3.468 3.570 3.672 3.774 3.876 3.978 4.080 4.182 4.284 4.386 4.488 4.590 4.692 4.794 4.896 4.998 Min 0.027 0.030 0.033 0.036 0.039 0.042 0.045 0.048 0.051 0.054 0.057 0.060 0.063 0.066 0.069 0.072 0.075 0.078 0.081 0.084 0.087 0.090 0.093 0.096 0.099 0.102 0.105 0.108 0.111 0.114 0.117 0.120 0.123 0.126 0.129 0.132 0.135 0.138 0.141 0.144 0.147 Detector Threshold Hysteresis VHYS (V) Typ 0.045 0.050 0.055 0.060 0.065 0.070 0.075 0.080 0.085 0.090 0.095 0.100 0.105 0.110 0.115 0.120 0.125 0.130 0.135 0.140 0.145 0.150 0.155 0.160 0.165 0.170 0.175 0.180 0.185 0.190 0.195 0.200 0.205 0.210 0.215 0.220 0.225 0.230 0.235 0.240 0.245 Max 0.063 0.070 0.077 0.084 0.091 0.098 0.105 0.112 0.119 0.126 0.133 0.140 0.147 0.154 0.161 0.168 0.175 0.182 0.189 0.196 0.203 0.210 0.217 0.224 0.231 0.238 0.245 0.252 0.259 0.266 0.273 0.280 0.287 0.294 0.301 0.308 0.315 0.322 0.329 0.336 0.343 0.4 0.6 11 0.6 0.18 Vin Low Iin (mA) (1) Typ 0.3 Vin High Iin (mA) (2) Typ 0.5 Nch Sink Current IOUT (mA) (3) Typ 2.5 Pch Source Current Vin Low IOUT (mA) (4) Typ 0.04 Vin High IOUT (mA) (5) Typ 0.08
0.9 -- 2.9 V, Vin = VDET- - 0.10 V; 3.0 -- 3.9 V, Vin = VDET- - 0.13 V; 4.0 -- 4.9 V, Vin = VDET- - 0.16 V 0.9 -- 4.9 V, Vin = VDET- + 2.0 V 0.9 -- 1.4 V, Vin = 1.5 V, VOUT = 0.5 V; 1.5 -- 4.9 V, Vin = 5.0 V, VOUT = 0.5 V, Active High `H' Suffix Devices 0.9 -- 4.9 V, Vin = 0.7 V, VOUT = 0.4 V, Active High `H' Suffix Devices 0.9 -- 1.0 V, Vin = 0.8 V, VOUT = GND; 1.1 -- 1.5 V, Vin = 1.0 V, VOUT = GND; 1.6 -- 4.9 V, Vin = 1.5 V, VOUT = GND,
Active High `H' Suffix Devices
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NCP302, NCP303
Table 3. ELECTRICAL CHARACTERISTIC TABLE FOR 0.9 - 4.9 V
Detector Threshold Hysteresis VHYS (V) Max 0.918 1.020 1.122 1.224 1.326 1.428 1.530 1.632 1.734 1.836 1.938 2.040 2.142 2.244 2.346 2.448 2.550 2.652 2.754 2.856 2.958 3.060 3.162 3.264 3.366 3.468 3.570 3.672 3.774 3.876 3.978 4.080 4.182 4.284 4.386 4.488 4.590 4.692 4.794 4.896 4.998 Min 0.027 0.030 0.033 0.036 0.039 0.042 0.045 0.048 0.051 0.054 0.057 0.060 0.063 0.066 0.069 0.072 0.075 0.078 0.081 0.084 0.087 0.090 0.093 0.096 0.099 0.102 0.105 0.108 0.111 0.114 0.117 0.120 0.123 0.126 0.129 0.132 0.135 0.138 0.141 0.144 0.147 Typ 0.045 0.050 0.055 0.060 0.065 0.070 0.075 0.080 0.085 0.090 0.095 0.100 0.105 0.110 0.115 0.120 0.125 0.130 0.135 0.140 0.145 0.150 0.155 0.160 0.165 0.170 0.175 0.180 0.185 0.190 0.195 0.200 0.205 0.210 0.215 0.220 0.225 0.230 0.235 0.240 0.245 Max 0.063 0.070 0.077 0.084 0.091 0.098 0.105 0.112 0.119 0.126 0.133 0.140 0.147 0.154 0.161 0.168 0.175 0.182 0.189 0.196 0.203 0.210 0.217 0.224 0.231 0.238 0.245 0.252 0.259 0.266 0.273 0.280 0.287 0.294 0.301 0.308 0.315 0.322 0.329 0.336 0.343 0.4 0.6 2.0 1.0 Supply Current Vin Low Iin (mA) (1) Typ 0.3 Vin High Iin (mA) (2) Typ 0.5 Nch Sink Current Vin Low IOUT (mA) (3) Typ 0.05 Vin High IOUT (mA) (4) Typ 0.5
NCP303 Series
Detector Threshold VDET- (V)
Part Number NCP303LSN09T1 NCP303LSN10T1 NCP303LSN11T1 NCP303LSN12T1 NCP303LSN13T1 NCP303LSN14T1 NCP303LSN15T1 NCP303LSN16T1 NCP303LSN17T1 NCP303LSN18T1 NCP303LSN19T1 NCP303LSN20T1 NCP303LSN21T1 NCP303LSN22T1 NCP303LSN23T1 NCP303LSN24T1 NCP303LSN25T1 NCP303LSN26T1 NCP303LSN27T1 NCP303LSN28T1 NCP303LSN29T1 NCP303LSN30T1 NCP303LSN31T1 NCP303LSN32T1 NCP303LSN33T1 NCP303LSN34T1 NCP303LSN35T1 NCP303LSN36T1 NCP303LSN37T1 NCP303LSN38T1 NCP303LSN39T1 NCP303LSN40T1 NCP303LSN41T1 NCP303LSN42T1 NCP303LSN43T1 NCP303LSN44T1 NCP303LSN45T1 NCP303LSN46T1 NCP303LSN47T1 NCP303LSN48T1 NCP303LSN49T1 13. Condition 1: 14. Condition 2: 15. Condition 3: 16. Condition 4: Condition 4:
Min 0.882 0.980 1.078 1.176 1.274 1.372 1.470 1.568 1.666 1.764 1.862 1.960 2.058 2.156 2.254 2.352 2.450 2.548 2.646 2.744 2.842 2.940 3.038 3.136 3.234 3.332 3.430 3.528 3.626 3.724 3.822 3.920 4.018 4.116 4.214 4.312 4.410 4.508 4.606 4.704 4.802
Typ 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9
0.9 -- 2.9 V, Vin = VDET- - 0.10 V; 3.0 -- 3.9 V, Vin = VDET- - 0.13 V; 4.0 -- 4.9 V, Vin = VDET- - 0.16 V 0.9 -- 4.9 V, Vin = VDET- + 2.0 V 0.9 -- 4.9 V, Vin = 0.7 V, VOUT = 0.05 V, Active Low `L' Suffix Devices 0.9 -- 1.0 V, Vin = 0.85 V, VOUT = 0.5 V; 1.1 -- 1.5 V, Vin = 1.0 V, VOUT = 0.5 V; 1.6 -- 4.9 V, Vin = 1.5 V, VOUT = 0.5 V, Active Low `L' Suffix Devices
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NCP302, NCP303
VDET, DETECTOR THRESHOLD VOLTAGE (V) VDET, DETECTOR THRESHOLD VOLTAGE (V) 0.98 0.96 VDET+ 0.94 0.92 VDET- 0.90 0.88 0.86 -50 3.00 2.95 2.90 2.85 2.80 2.75 2.70 2.65 2.60 -50 -25 0 25 50 75 100 VDET- VDET+
-25
0
25
50
75
100
TA, AMBIENT TEMPERATURE (C)
TA, AMBIENT TEMPERATURE (C)
Figure 3. NCP302/3 Series 0.9 V Detector Threshold Voltage vs. Temperature
VDET, DETECTOR THRESHOLD VOLTAGE (V)
Figure 4. NCP302/3 Series 2.7 V Detector Threshold Voltage vs. Temperature
4.9 4.8 VDET+ 4.7 4.6 VDET- 4.5 4.4 4.3 -50
VTCD, CD PIN THRESHOLD VOLTAGE (V)
0.9 Vin = 0.99 V 0.8 0.7 0.6 0.5 0.4 0.3 -50
-25
0
25
50
75
100
-25
TA, AMBIENT TEMPERATURE (C)
0 75 25 50 TA, AMBIENT TEMPERATURE (C)
100
Figure 5. NCP302/3 Series 4.5 V Detector Threshold Voltage vs. Temperature
Figure 6. NCP302/3 Series 0.9 V CD Delay Pin Threshold Voltage vs. Temperature
VTCD, CD PIN THRESHOLD VOLTAGE (V)
VTCD, CD PIN THRESHOLD VOLTAGE (V)
2.3 Vin = 2.97 V 2.2
3.3 Vin = 4.95 V 3.2 3.1 3.0 2.9 2.8 2.7 -50
2.1
2.0
1.9
1.8 -50
-25
0 75 25 50 TA, AMBIENT TEMPERATURE (C)
100
-25
0
25
50
75
100
TA, AMBIENT TEMPERATURE (C)
Figure 7. NCP302/3 Series 2.7 V CD Delay Pin Threshold Voltage vs. Temperature
Figure 8. NCP302/3 Series 4.5 V CD Delay Pin Threshold Voltage vs. Temperature
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NCP302, NCP303
ICD, CD DELAY PIN SINK CURRENT (mA) ICD, CD DELAY PIN SINK CURRENT (mA) 0.6 0.5 0.4 0.3 0.2 0.1 0 0 0.2 0.4 0.6 0.8 1.0 VCD, DELAY PIN VOLTAGE (V) Vin = 0.7 V TA = 25C Vin = 0.85 V 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0 0 0.5 1.0 1.5 2.0 2.5 VCD, DELAY PIN VOLTAGE (V) Vin = 1.5 V Vin = 2.0 V TA = 25C Vin = 2.5 V
Figure 9. NCP302/3 Series 0.9 V CD Delay Pin Sink Current vs. Voltage
Figure 10. NCP302/3 Series 2.7 V CD Delay Pin Sink Current vs. Voltage
ICD, CD DELAY PIN SINK CURRENT (mA)
18 16 14 12 10 8.0 6.0 4.0 2.0 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 VCD, DELAY PIN VOLTAGE (V) Vin = 3.0 V Vin = 2.5 V Vin = 3.5 V TA = 25C Vin = 4.0 V
10000 TA = 25C t D1, t D2 , OUTPUT TIME DELAY 1000 tD1 (ms) 100 tD2 (ms)
10
1.0 0.1 0.0001 0.001 0.01 0.1 1.0 CD, DELAY PIN CAPACITANCE ( mF)
Figure 11. NCP302/3 Series 4.5 V CD Delay Pin Sink Current vs. Voltage
Figure 12. NCP302/3 Series 0.9 V Output Time Delay vs. Capacitance
10000 TA = 25C t D1, t D2 , OUTPUT TIME DELAY 1000 tD1 (ms) 100 tD2 (ms)
10000 TA = 25C t D1, t D2 , OUTPUT TIME DELAY 1000 tD1 (ms) 100 tD2 (ms)
10
10
1.0 0.1 0.0001 0.001 0.01 0.1 1.0 CD, DELAY PIN CAPACITANCE ( mF)
1.0 0.1 0.0001 0.001 0.01 0.1 1.0 CD, DELAY PIN CAPACITANCE ( mF)
Figure 13. NCP302/3 Series 2.7 V Output Time Delay vs. Capacitance
Figure 14. NCP302/3 Series 4.5 V Output Time Delay vs. Capacitance
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NCP302, NCP303
1.0 VOUT, OUTPUT VOLTAGE (V) VOUT, OUTPUT VOLTAGE (V) 3.0 2.5 2.0 1.5 1.0 0.5 0 0 0.2 0.6 Vin, INPUT VOLTAGE (V) 0.4 0.8 1.0 0 1.0 0.5 1.5 2.0 Vin, INPUT VOLTAGE (V) 2.5 3.0 TA = -30C (303L only) TA = 25C (303L only) TA = 85C (303L only)
0.8
0.6
0.4 TA = -30C (303L only) TA = 25C (303L only) TA = 85C (303L only)
0.2 0
Figure 15. NCP302L/3L Series 0.9 V Reset Output Voltage vs. Input Voltage
7.0 VOUT, OUTPUT VOLTAGE (V) 6.0 5.0 4.0 3.0 2.0 1.0 0 0 1.0 2.0 4.0 3.0 Vin, INPUT VOLTAGE (V) 5.0 6.0 TA = -30C (303L only) TA = 25C (303L only) TA = 85C (303L only) IOUT, OUTPUT SINK CURRENT (mA) 1.2 1.0 0.8 0.6 0.4 0.2 0 0
Figure 16. NCP302L/3L Series 2.7 V Reset Output Voltage vs. Input Voltage
TA = 25C Vin = 0.85 V
Vin = 0.7 V
0.2
0.4
0.6
0.8
1.0
VOUT, OUTPUT VOLTAGE (V)
Figure 17. NCP302L/3L Series 4.5 V Reset Output Voltage vs. Input Voltage
16 IOUT, OUTPUT SINK CURRENT (mA) 14 12 10 8.0 6.0 4.0 2.0 0 0 0.5 1.0 1.5 2.0 2.5 VOUT, OUTPUT VOLTAGE (V) Vin = 1.5 V Vin = 2.0 V TA = 25C Vin = 2.5 V IOUT, OUTPUT SINK CURRENT (mA) 35 30 25 20
Figure 18. NCP302H/3L Series 0.9 V Reset Output Sink Current vs. Output Voltage
TA = 25C
Vin = 4.0 V Vin = 3.5 V Vin = 3.0 V
15 Vin = 2.5 V 10 Vin = 2.0 V 5.0 Vin = 1.5 V 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 VOUT, OUTPUT VOLTAGE (V)
Figure 19. NCP302H/3L Series 2.7 V Reset Output Sink Current vs. Output Voltage
Figure 20. NCP302H/3L Series 4.5 V Reset Output Sink Current vs. Output Voltage
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NCP302, NCP303
1.2 TA = 25C Iin, INPUT CURRENT (mA) 1.0 0.8 0.6 0.4 0.2 0 0 2.0 4.0 6.0 8.0 10 Vin, INPUT VOLTAGE (V) Iin, INPUT CURRENT (mA) 2.5 2.0 1.5 1.0 0.5 0 0 2.0 4.0 6.0 Vin, INPUT VOLTAGE (V) 8.0 10 5.5 TA = 25C
Figure 21. NCP302/3 Series 0.9 V Input Current vs. Input Voltage
11.8 TA = 25C Iin, INPUT CURRENT (mA) 2.5 2.0 1.5 1.0 0.5 0 0 2.0 4.0 6.0 Vin, INPUT VOLTAGE (V) 8.0 10 tD2, OUTPUT TIME DELAY (ms) 200 250
Figure 22. NCP302/3 Series 2.7 V Input Current vs. Input Voltage
CD = 0.1 mF
150
100
50
0 -50
-25
0
25
50
75
100
TA, AMBIENT TEMPERATURE (C)
Figure 23. NCP302/3 Series 4.5 V Input Current vs. Input Voltage
350 tD2, OUTPUT TIME DELAY (ms) tD2, OUTPUT TIME DELAY (ms) 300 250 200 150 100 50 0 -50 CD = 0.1 mF 250
Figure 24. NCP302/3 Series 0.9 V Reset Output Time Delay vs. Temperature
200
CD = 0.1 mF
150
100
50 0 -50
-25
0
25
50
75
100
-25
0
25
50
75
100
TA, AMBIENT TEMPERATURE (C)
TA, AMBIENT TEMPERATURE (C)
Figure 25. NCP302/3 Series 2.7 V Reset Output Time Delay vs. Temperature
Figure 26. NCP302/3 Series 4.5 V Reset Output Time Delay vs. Temperature
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NCP302, NCP303
1.6 IOUT, OUTPUT SINK CURRENT (mA) IOUT, OUTPUT SINK CURRENT (mA) 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 0.2 0.4 0.6 0.8 1.0 Vin, INPUT VOLTAGE (V) TA = 85C TA = 25C VOUT = 0.5 V TA = -30C 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0 0 0.5 1.0 1.5 2.0 2.5 3.0 Vin, INPUT VOLTAGE (V) TA = 25C VOUT = 0.5 V TA = -30C
TA = 85C
Figure 27. NCP302H/3L Series 0.9 V Reset Output Sink Current vs. Input Voltage
Figure 28. NCP302H/3L Series 2.7 V Reset Output Sink Current vs. Input Voltage
VOUT = 0.5 V 12 10 8.0 6.0 4.0 2.0 0 0 1.0 2.0 3.0 4.0 5.0 Vin, INPUT VOLTAGE (V) TA = 25C TA = 85C TA = -30C
ICD, CD DELAY PIN SINK CURRENT (mA)
14 IOUT, OUTPUT SINK CURRENT (mA)
0.7 VCD = 0.5 V 0.6 0.5 0.4 0.3 0.2 0.1 0 0 0.2 0.4 0.6 0.8 1.0 Vin, INPUT VOLTAGE (V) TA = 85C TA = -30C TA = 25C
Figure 29. NCP302H/3L Series 4.5 V Reset Output Sink Current vs. Input Voltage
Figure 30. NCP302/3 Series 0.9 V CD Delay Pin Sink Current vs. Input Voltage
ICD, CD DELAY PIN SINK CURRENT (mA)
VCD = 0.5 V 4.0 TA = -30C TA = 25C
ICD, CD DELAY PIN SINK CURRENT (mA)
5.0
6.0 VCD = 0.5 V 5.0 4.0 3.0 2.0 1.0 0 0 1.0 2.0 3.0 4.0 5.0 Vin, INPUT VOLTAGE (V) TA = 85C TA = -30C TA = 25C
3.0
2.0
1.0
TA = 85C
0 0 0.5 1.0 1.5 2.0 2.5 3.0 Vin, INPUT VOLTAGE (V)
Figure 31. NCP302/3 Series 2.7 V CD Delay Pin Sink Current vs. Input Voltage http://onsemi.com
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Figure 32. NCP302/3 Series 4.5 V CD Delay Pin Sink Current vs. Input Voltage
NCP302, NCP303
IOUT, OUTPUT SOURCE CURRENT (mA) IOUT, OUTPUT SOURCE CURRENT (mA) 12 VOUT = Vin -2.1 V 10 8.0 6.0 4.0 2.0 0 0 2.0 4.0 6.0 8.0 10 Vin, INPUT VOLTAGE (V) Vin -1.0 V TA = 25C Vin -1.5 V 12 VOUT = Vin -2.1 V 10 8.0 6.0 4.0 2.0 0 0 2.0 4.0 6.0 8.0 10 Vin, INPUT VOLTAGE (V) Vin -1.0 V TA = 25C Vin -1.5 V
Vin -0.5 V
Vin -0.5 V
Figure 33. NCP302L Series 0.9 V Reset Output Source Current vs. Input Voltage
Figure 34. NCP302L Series 2.7 V Reset Output Source Current vs. Input Voltage
IOUT, OUTPUT SOURCE CURRENT (mA)
12 10 8.0 6.0 4.0 2.0 0 0 2.0 4.0 6.0 8.0 10 Vin, INPUT VOLTAGE (V) Vin -1.0 V TA = 25C Vin -1.5 V RD, DELAY RESISTANCE (MW) VOUT = Vin -2.1 V
2.0
1.6
1.2
0.8
Vin -0.5 V
0.4
0 -50
-25
0
25
50
75
100
TA, AMBIENT TEMPERATURE (C)
Figure 35. NCP302L Series 4.5 V Reset Output Source Current vs. Input Voltage
Figure 36. NCP302/3 Series Delay Resistance vs. Temperature
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NCP302, NCP303
OPERATING DESCRIPTION The NCP302 and NCP303 series devices consist of a precision voltage detector that drives a time delay generator. Figures 37 and 38 show a timing diagram and a typical application. Initially consider that input voltage Vin is at a nominal level and it is greater than the voltage detector upper threshold (VDET+). The voltage at Pin 5 and capacitor CD will be at the same level as Vin, and the reset output (Pin 1) will be in the high state for active low devices, or in the low state for active high devices. If there is a power interruption and Vin becomes significantly deficient, it will fall below the lower detector threshold (VDET-) and the external time delay capacitor CD will be immediately discharged by an internal N-Channel MOSFET that connects to Pin 5. This sequence of events causes the Reset output to be in the low state for active low devices, or in the high state for active high devices. After completion of the power interruption, Vin will again return to its nominal level and become greater than the VDET+. The voltage detector will turn off the N-Channel MOSFET and allow pullup resistor RD to charge external capacitor CD, thus creating a programmable delay for releasing the reset signal. When the voltage at Pin 5 exceeds the inverter/buffer threshold, typically 0.675 Vin, the reset output will revert back to its original state. The reset output time delay versus capacitance is shown in Figures 12 through 14. The voltage detector and inverter/buffer have built-in hysteresis to prevent erratic reset operation. Although these device series are specifically designed for use as reset controllers in portable microprocessor based systems, they offer a cost-effective solution in numerous applications where precise voltage monitoring and time delay are required. Figures 38 through 45 show various application examples.
Input Voltage, Pin 2
Vin VDET+ VDET-
Vin Capacitor, Pin 5 0.675 Vin
Reset Output (Active Low), Pin 1
Vin VDET- 0V
Reset Output (Active High), Pin 1
Vin VDET- 0V tD2
Figure 37. Timing Waveforms
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NCP302, NCP303
APPLICATION CIRCUIT INFORMATION
VDD VDD
2 5 CD CD
Input 1 Reset Output
*
Reset
NCP302 Series
Microprocessor
3
GN D
* Required for
NCP303
GND
Figure 38. Microprocessor Reset Circuit
2.85 V 2.70 V 2 5 CD Input 1
Vin < 2.7 ON
NCP302 LSN27T1
To Additional Circuitry Reset Output Vin > 2.835 ON
3
GN D
Figure 39. Battery Charge Indicator
5.0 V 1.0 V 0V 2 5 CD CD Input 1
Vsupply
470 k
NCP303 LSN45T1 3 GN D
To Additional Circuitry Reset Output 0.001 mF Missing Pulse Input 0V Vin [0.675*Vin CD Reset Output tD2
Figure 40. Missing Pulse Detector or Frequency Detector
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NCP302, NCP303
VDD RH 2 5 CD Input RL NCP303 NCP301 LSN27T1 3 GN D 1 Microprocessor Reset Output Reset GN D VDD
Figure 41. Microprocessor Reset Circuit with Additional Hysteresis
Vin Decreasing:
V th + RH )1 R in V DET*
Vin Increasing:
V th + RH )1 R in o R L V DET* ) V HYS
VHYS = Vin Increasing - Vin Decreasing
5.0 V
100 k Test Data C C (mF) 2 5 CD Input 82 k NCP302 NCP301 HSN27T1 LSN27T1 3 GN D 1 Reset Output 0.01 0.1 1.0 2590 490 52 21.77 21.97 22.07 fOSC (kHz) IQ (mA)
Figure 42. Simple Clock Oscillator
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AA AAA A AAAAAAAAAAAAAAAA A AAA A AAAAAAAAAAAAAAAA A AAA AAAAAAAAAAAAAAAA A AAA AAAAAAAAAAAAAAAA A AAA AAAAAAAAAAAAAAAA AA A AAA AAAAAAAAAAAAAAAA AAAAAAAAAAAAAAA AAA A AAAAAAAAAAAAAAAA
2.70 2.70 2.70 2.70 2.70 2.70 2.70 2.70 2.70 2.70 2.84 2.87 2.88 2.91 2.90 2.94 2.98 2.70 3.04 3.15 0.135 0.17 0.19 0.21 0.20 0.24 0.28 0.27 0.34 0.35 0 100 100 100 220 220 220 470 470 470 - 10 6.8 4.3 10 6.8 4.3 10 6.8 4.3
Comparator hysteresis can be increased with the addition of resistor RH. The hysteresis equations have been simplified and do not account for the change of input current Iin as Vin crosses the comparator threshold. The internal resistance, Rin is simply calculated using Iin = 0.26 mA at 2.6 V.
Test Data Vth Decreasing (V) Vth Increasing (V) VHYS (V) RH (W) RL (kW)
NCP302, NCP303
Vsupply This circuit monitors the current at the load. As current flows through the load, a voltage drop with respect to ground appears across Rsense where Vsense = Iload * Rsense. The following conditions apply: If: ILoad t VDET - /Rsense ILoad w (VDET -+VHYS)/Rsense Microcontroller Then: Reset Output = 0 V Reset Output = VDD
Load VDD
Rsense 5 CD
2
Input 50 k 1 Reset Output GND
NCP303 NCP301 LSN09T1 LSN27T1 3 GND
Figure 43. Microcontroller Systems Load Sensing
Vsupply 2 5 CD Input 1 Reset Output
NCP303 NCP301 LSN45T1 LSN27T1 3 GND
2 5 CD
Input 1 Reset Output
NCP303 NCP301 LSN27T1 3 GND
Vin = 1.0 V to 10 V 2 5 CD Input 1 Reset Output
NCP303 NCP301 LSN18T1 LSN27T1 3 GND
A simple voltage monitor can be constructed by connecting several voltage detectors as shown above. Each LED will sequentially turn on when the respective voltage detector threshold (VDET- +VHYS) is exceeded. Note that detector thresholds (VDET-) that range from 0.9 V to 4.9 V in 100 mV steps can be manufactured.
Figure 44. LED Bar Graph Voltage Monitor
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NCP302, NCP303
Power Supply 1 2 5 CD Input 1 Reset Output Reset Output To MCU or Logic Circuitry
NCP303 LSN18T1
3
GN D
Power Supply 2 2 Input 1 Reset Output
NCP300 LSN33T1
3
GN D
Power Supply 3 2 Input 1 Reset Output
NCP300 LSN45T1
3
GN D
For monitoring power supplies with a time delay reset, only a single NCP303 with delay capacitor is required.
Figure 45. Multiple Power Supply Undervoltage Supervision with Time Delay Reset
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NCP302, NCP303
ORDERING INFORMATION
Device NCP302LSN09T1 NCP302LSN09T1G NCP302LSN15T1 NCP302LSN18T1 NCP302LSN20T1 NCP302LSN27T1 NCP302LSN27T1G NCP302LSN30T1 NCP302LSN30T1G NCP302LSN33T1 NCP302LSN33T1G NCP302LSN38T1 NCP302LSN38T1G NCP302LSN40T1 NCP302LSN43T1 NCP302LSN45T1 NCP302LSN45T1G NCP302LSN47T1 NCP302HSN09T1 NCP302HSN18T1 NCP302HSN27T1 NCP302HSN30T1 NCP302HSN40T1 NCP302HSN45T1 NCP302HSN45T1G NCP303LSN09T1 NCP303LSN09T1G NCP303LSN10T1 NCP303LSN10T1G NCP303LSN11T1 Threshold Voltage 0.9 0.9 1.5 1.8 2.0 2.7 2.7 3.0 3.0 3.3 3.3 3.8 3.8 4.0 4.3 4.5 4.5 4.7 0.9 1.8 2.7 3.0 4.0 4.5 4.5 0.9 0.9 1.0 1.0 1.1 Open Drain Active Low CMOS Active ce High Hi h CMOS Active Low Output Type Reset Marking SBO SBO SBI SBF SBD SAW SAW SAT SAT SAQ SAQ SAK SAK SAI SAF SAL SAL SAC SDO SFH SDK SDI SJH SDG SDG SDE SDE SDD SDD SDC Package TSOP-5 TSOP-5 (Pb-Free) TSOP-5 TSOP-5 TSOP-5 TSOP-5 TSOP-5 (Pb-Free) TSOP-5 TSOP-5 (Pb-Free) TSOP-5 TSOP-5 (Pb-Free) TSOP-5 (Pb-Free) TSOP-5 TSOP-5 TSOP-5 TSOP-5 TSOP-5 (Pb-Free) TSOP-5 TSOP-5 TSOP-5 TSOP-5 TSOP-5 TSOP-5 TSOP-5 TSOP-5 (Pb-Free) TSOP-5 TSOP-5 (Pb-Free) TSOP-5 TSOP-5 (Pb-Free) TSOP-5 3000 / Tape & Reel (7 inch Reel) Shipping
NOTE: The ordering information lists standard undervoltage thresholds with active low outputs. Additional active low threshold devices, ranging from 0.9 V to 4.9 V in 100 mV increments and NCP302 active high output devices, ranging from 0.9 V to 4.9 V in 100 mV increments can be manufactured. Contact your ON Semiconductor representative for availability. The electrical characteristics of these additional devices are shown in Tables 1 and 2. For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.
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NCP302, NCP303
ORDERING INFORMATION
Device NCP303LSN13T1 NCP303LSN14T1 NCP303LSN15T1 NCP303LSN15T1G NCP303LSN16T1 NCP303LSN18T1 NCP303LSN20T1 NCP303LSN20T1G NCP303LSN22T1 NCP303LSN23T1 NCP303LSN24T1 NCP303LSN25T1 NCP303LSN25T1G NCP303LSN26T1 NCP303LSN26T1G NCP303LSN27T1 NCP303LSN27T1G NCP303LSN28T1 NCP303LSN28T1G NCP303LSN29T1 NCP303LSN29T1G NCP303LSN30T1 NCP303LSN30T1G NCP303LSN31T1 NCP303LSN32T1 NCP303LSN33T1 NCP303LSN34T1 NCP303LSN36T1 NCP303LSN38T1 Threshold Voltage 1.3 1.4 1.5 1.5 1.6 1.8 2.0 2.0 2.2 2.3 2.4 2.5 2.5 2.6 2.6 2.7 2.7 2.8 2.8 2.9 2.9 3.0 3.0 3.1 3.2 3.3 3.4 3.6 3.8 Open Drain Active Low Output Type Reset Marking SDA SCZ SCY SCY SCX SCV SCT SCT SCR SCQ SCP SCO SCO SCN SCN SCM SCM SCL SCL SCK SCK SCJ SCJ SCI SCH SCG SCF SCD SCA Package TSOP-5 TSOP-5 TSOP-5 TSOP-5 (Pb-Free) TSOP-5 TSOP-5 TSOP-5 TSOP-5 (Pb-Free) TSOP-5 TSOP-5 TSOP-5 TSOP-5 TSOP-5 (Pb-Free) TSOP-5 TSOP-5 (Pb-Free) TSOP-5 TSOP-5 (Pb-Free) TSOP-5 TSOP-5 (Pb-Free) TSOP-5 TSOP-5 (Pb-Free) TSOP-5 TSOP-5 (Pb-Free) TSOP-5 TSOP-5 TSOP-5 TSOP-5 TSOP-5 TSOP-5 3000 / Tape & Reel (7 inch Reel) Shipping
NOTE: The ordering information lists standard undervoltage thresholds with active low outputs. Additional active low threshold devices, ranging from 0.9 V to 4.9 V in 100 mV increments and NCP302 active high output devices, ranging from 0.9 V to 4.9 V in 100 mV increments can be manufactured. Contact your ON Semiconductor representative for availability. The electrical characteristics of these additional devices are shown in Tables 1 and 2. For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.
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NCP302, NCP303
ORDERING INFORMATION
Device NCP303LSN40T1 NCP303LSN42T1 NCP303LSN42T1G NCP303LSN44T1 NCP303LSN44T1G NCP303LSN45T1 NCP303LSN45T1G NCP303LSN46T1 NCP303LSN46T1G NCP303LSN47T1 Threshold Voltage 4.0 4.2 4.2 4.4 4.4 4.5 4.5 4.6 4.6 4.7 O en Open Drain Active Low Output Type Reset Marking SBY SBW SBW SBU SBU SBT SBT SBS SBS SBR Package TSOP-5 TSOP-5 TSOP-5 (Pb-Free) TSOP-5 TSOP-5 (Pb-Free) TSOP-5 TSOP-5 (Pb-Free) TSOP-5 TSOP-5 (Pb-Free) TSOP-5 Shipping
3000 / Ta e & Reel Tape (7 inch Reel)
NOTE: The ordering information lists standard undervoltage thresholds with active low outputs. Additional active low threshold devices, ranging from 0.9 V to 4.9 V in 100 mV increments and NCP302 active high output devices, ranging from 0.9 V to 4.9 V in 100 mV increments can be manufactured. Contact your ON Semiconductor representative for availability. The electrical characteristics of these additional devices are shown in Tables 1 and 2. For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.
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NCP302, NCP303
PACKAGE DIMENSIONS
THIN SOT-23-5/TSOP-5/SC59-5 CASE 483-02 ISSUE C
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH THICKNESS. MINIMUM LEAD THICKNESS IS THE MINIMUM THICKNESS OF BASE MATERIAL. 4. A AND B DIMENSIONS DO NOT INCLUDE MOLD FLASH, PROTRUSIONS, OR GATE BURRS. MILLIMETERS INCHES DIM MIN MAX MIN MAX A 2.90 3.10 0.1142 0.1220 B 1.30 1.70 0.0512 0.0669 C 0.90 1.10 0.0354 0.0433 D 0.25 0.50 0.0098 0.0197 G 0.85 1.05 0.0335 0.0413 H 0.013 0.100 0.0005 0.0040 J 0.10 0.26 0.0040 0.0102 K 0.20 0.60 0.0079 0.0236 L 1.25 1.55 0.0493 0.0610 M 0_ 10 _ 0_ 10 _ S 2.50 3.00 0.0985 0.1181
D
5 1 2 4 3
S
B
L G A J C 0.05 (0.002) H K M
SOLDERING FOOTPRINT*
1.9 0.074
0.95 0.037
2.4 0.094 1.0 0.039 0.7 0.028
SCALE 10:1
mm inches
*For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.
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NCP302, NCP303
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 61312, Phoenix, Arizona 85082-1312 USA Phone: 480-829-7710 or 800-344-3860 Toll Free USA/Canada Fax: 480-829-7709 or 800-344-3867 Toll Free USA/Canada Email: orderlit@onsemi.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center 2-9-1 Kamimeguro, Meguro-ku, Tokyo, Japan 153-0051 Phone: 81-3-5773-3850 ON Semiconductor Website: http://onsemi.com Order Literature: http://www.onsemi.com/litorder For additional information, please contact your local Sales Representative.
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NCP302/D

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