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FUJITSU SEMICONDUCTOR DATA SHEET
DS04-27202-3E
ASSP
SWITCHING REGULATOR CONTROLLER
MB3769A
The Fujitsu MB3769A is a pulse-width-modulation controller which is applied to fixed frequency pulse modulation technique. The MB3769A contains wide band width Op-Amp and high speed comparator to construct very high speed switching regulator system up to 700 kHz. Output is suitable for power MOS FET drive owing to adoption of totem pole output. The MB3769A provides stand-by mode at low voltage power supply when it is applied in primary control system.
* High frequency oscillator (f = 1 to 700 kHz) * On-chip wide band frequency operation amplifier (BW = 8 MHz typ.) * On-chip high speed comparator (td = 120 ns typ.) * Internal reference voltage generator provides a stable reference supply
(5 V 2%) PLASTIC DIP 16-PIN (DIP-16P-M04)
* Low power dissipation (1.5 mA typ. at standby mode, 8 mA typ. at operating
mode)
* Output current 100 mA ( 600 mA at peak) * High speed switching operation (tr = 60 ns, tf = 30 ns, CL = 1000 pF typ.) * Adjustable Dead-time * On-chip soft start and quick shut down functions * Internal circuitry prohibits double pulse at dynamic current limit operation * Under voltage lock out function (OFF to ON: 10 V typ. ON to OFF: 8 V typ.) * On-chip output shut down circuit with latch function at over voltage * On-chip Zener diode (15 V)
This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields. However, it is advised that normal precautions be taken to avoid application of any voltage higher than maximum rated voltages to this high impedance circuit.
PLASTIC FPT 16-PIN (FPT-16P-M06)
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MB3769A
s
PIN ASSIGNMENT
(TOP VIEW)
+IN (OP) -IN (OP) FB DTC CT RT GND VL
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
+IN (C) -IN (C) VREF OVP VCC VZ VH OUT
s
ABSOLUTE MAXIMUM RATINGS (See NOTE)
Rating Power Supply Voltage Output Current Operation Amp. Input Voltage Power Dissipation: DIP : FPT Operating Temp. : DIP : FPT Storage Temp.
* ** *** : : :
Symbol VCC IOUT Vin (OP) PD PD TOP TOP TSTG
Value 20 120 (660*) VCC + 0.3 ( 20) 1000** 620*** -30 to +85 -30 to +75 -55 to +125
Unit V mA V mW mW C C C
Duty 5% TA = 25 C TA = 25 C, FPT package is mounted on the epoxy board. (4 cm x 4 cm x 0.15 cm)
NOTE : Permanent device damage may occur if the above Absolute Maximum Ratings are exceeded. Functional operation should be restricted to the conditions as detailed in the operational sections data sheet. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
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MB3769A
s
BLOCK DIAGRAM
Fig. 1 - MB3769A Block Diagram
Over Current Detection Comparator -IN (C) 15 S +IN (C) 16 + R 1.85 V VREF + + + PWM + Comparator + STB STB FB +IN (OP) 3 1 8 VL Q 10 VH
+ 1.8 V DTC 4
9
OUT
-IN (OP)
2 13
+ Error Amp. Over Voltage Detector S 2.5 V Power off 1.5 V to 3.5 V Triangle Wave Oscillator R Q
OVP
+
CT RT V CC
5 6 12
+ 8/10 V STB -
(2.5 V)
15.4 V VZ 11 30 k GND 7 Reference Regulator
5.0 + 0.1 V
+ 14 VREF
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MB3769A
s
RECOMMENDED OPERATING CONDITION
DIP package Parameter SymboL Min Typ 15 0 to VREF 0 to 3 0 to 2 5 18 680 100 25 Max 18 100 600 VCC -3 0.3 2 VCC 2.5 10 50 106 700 5 85 Min 12 -100 -600 -0.2 -0.3 -0.3 9 100 1 -30 Typ 15 0 to VREF 0 to 3 0 to 2 2 18 680 100 25 Max 18 100 600 VCC-3 0.3 2 VCC 2.5 10 50 106 700 5 75 V mA mA V mA mA V V mA k pF kHz mA C VCC IOUT IOUT PEAK VINOP ISINK ISOURCE VINC+ 12 -100 -600 -0.2 -0.3 -0.3 9 100 1 -30 FPT package Unit
Power Supply Voltage Output Current (DC) Output Current (Peak) Operation Amp. Input voltage FB Sink Current FB Source Current
Comparator Input Voltage VINCReference Section Output Current Timing Resistor Timing Capacitor Oscillator Frequency Zener Current Operating Temp. IREF RT CT fOSC IZ TOP
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MB3769A
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ELECTRICAL CHARACTERISTICS
(VCC=15V, TA=25C) Value Parameter Output Voltage Symbol VREF VRIN VRLD VRTEMP ISC fOSC fOSCIN fOSC / T ID Dmax Dset VDO VDM VDH VIO (OP) IIO (OP) IIR (OP) VCM (OP) AV (OP) BW SR CMR VOH VOL Vd = 1.5 V Vd = 0.5 VREF VCC= 7 V, IDTC= -0.3 mA V3 = 2.5 V V3 = 2.5 V V3 = 2.5 V 12 V VCC 18 V 0.5 V V3 4 V AV = 0dB RL = 10 k, AV = 0dB VIN = 0 to 10 V I3 = -2 mA I3 = 0.3 mA Condition Min IREF = 1 mA 12 V VCC 18 V 1 mA IREF 10 mA -30 C TA 85 C VREF = 0 V RT=18 k CT=680 pF 12 V VCC 18 V -30 C TA 85 C 4.9 15 90 75 45 1.55 4.5 -1 -0.2 70 65 4.0 Typ 5.0 2 -1 200 40 100 0.03 2 2 80 50 3.5 1.85 2 30 -0.3 90 8 6 80 4.6 0.1 Max 5.1 15 -15 750 110 10 85 55 3.8 10 300 VCC -3 0.5 V mV mV V/ C mA kHz % % A % % V V V mV nA A V dB MHz V/s dB V V Unit
Input Regulation Reference Load Regulation Section Temp. Stability Short Circuit Output Current Oscillator Frequency Oscillator Section Voltage Stability Temp. Stability Input Bias Current Max. Duty Cycle Dead -time Duty Cycle Set Control 0% Duty Section Input Cycle Threshold Max. Duty Voltage Cycle Discharge Voltage Input Offset Voltage Input Offset Current Input Bias Current Common-Mode Input Voltage Error Amplifier Section Voltage Gain Band Width Slew Rate Common-Mode Rejection Rate "H" Level Output Voltage "L" Level Output Voltage
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MB3769A
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ELECTRICAL CHARACTERISTICS (Continued)
(VCC=15V, TA=25C) Value Parameter Input Offset Voltage Input Bias Current Symbol VIO (C) IIB (C) Condition Min VIN = 1 V VIN = 1 V 50 mV over drive RT = 18 k CT = 680 pF IOUT = -100 mA IOUT = 100 mA CL = 1000 pF, RL = CL = 1000 pF, RL = VIN = 0 V RT = 18 k 4 pin Open RT = 18 kW IZ = 1 mA V11-7 = 1 V -5 0 1.55 12.5 2.4 -1.0 2.0 9.2 7.2 Typ 5 -1 200 120 3.5 1.85 13.5 1.1 60 30 2.5 -0.2 3.0 10.0 8.0 1.5 8.0 15.4 0.03 Max 15 2.5 250 3.8 1.3 120 80 2.6 4.5 10.8 8.8 2.0 12.0 mV A V V/V ns V V V V ns ns V A V V V mA mA V mA Unit
Current Comparator
Common-Mode Input VoltVCM (C) age Voltage Gain Response Time AV (C) td VOPO VOPM VH VL tr tf VOVP IIOVP VCC RST VTHH VTHL ISTB ICC VZ IZ
PWM Comparator Section
0% Duty Cycle Max. Duty Cycle "H" Level Output Voltage
Output Section
"L" Level Output Voltage Rise Time Fall Time Threshold Voltage
Over Voltage Detector Under Voltage Out Stop
Input Current VCC Reset Off to On On to Off Standby *
Supply Current
Operating Zener Voltage Zener Current
* : VCC = 8V
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MB3769A
Fig. 2 - MB3769A Test Circuit
1.0 V 15.0 V OUTPUT
10 k 16 +IN (C) COMP in +IN (OP) 1 -IN (OP) 2 FB 3 DTC 4 680 pF VFB VDTC 15 -IN (C) 14 VREF 13 OVP 12 VCC MB3769A CT 5 18 k RT 6 GND 7 VL 8 11 VZ 10 VH 9 OUT 1000 pF
TEST INPUT 3.5 V typ. Voltage at CT 1.5 V typ. 1.05 V 1.0 V COMP in 0.95 V 90% tr of COMP-in should be within 20 ns.
50% OUTPUT 10% tr tf td
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MB3769A
Fig. 3 - MB3769A Operating Timing
Soft Start Operation Dead-Time Input Voltage Triangle Wave Form Error Amp. Output
1.85V
Quick Shutdown Operation
3.5 V
1.5 V
PWM Comparator Output Output Wave Form Comp. Current -in Wave Form Comp. Current +in Wave Form Comp. Current Latch Output Voltage at OVP OVP Latch Power Supply Voltage 0V Standby Mode Over Voltage Detector Latch OFF (15 V) 10 V (typ.) Over Current Detector 2.5 V
(1 V)
8V (typ.) Over Voltage Detector
3V
Standby Mode
8
MB3769A
s
FUNCTIONS
1. Error Amplifier
The error amplifier detects the output voltage of the switching regulator. The error amplifier uses a high-speed operational amplifier with an 8 MHz bandwidth (typical) and 6 V/ms slew rate (typical). For ease of use, the common mode input voltage ranges from -0.2 V to VCC-3 V. Figure 4 shows the equivalent circuit.
Fig. 4 - MB3769A Equivalent Circuit Differential Amp.
VCC
VREF
-IN (OP) 150 +IN (OP) 700 A
To PWM Comp.
GND Protection element
2. Overcurrent Detection Comparator
There are two methods for protection of the output transistor of this device from overcurrents; one restricts the transistor's ontime if an overcurrent that flows through the output transistor is detected from an average output current, and the other detects an overcurrent in the external transistor (FET) and shuts the output down instantaneously. Using average output currents, the peak current of the external transistor (FET) cannot be detected, so an output transistor with a large safe operation area (SOA) margin is required. For the method of detecting overcurrents in the external transistor (FET), the output transistor can be protected against a shorted filter capacitor or power-on surge current. The MB3769A uses dynamic current limiting to detect overcurrents in the output transistor (FET). A high-speed comparator and flip-flop are built-in. To detect overcurrents, compare the voltage at +IN(C) of current detection resistor connected the source of the output transistor (FET), with the reference voltage (connected to -IN(C) ) using a comparator. To prevent output oscillation during overcurrent, flip-flop circuit protects against double pulses occurring within a cycle. The output of overcurrent detector is ORed with other signals at the PWM comparator. See the example Application Example for details on use. Figure 5 shows the equivalent circuit of the over-current detection comparator.
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MB3769A
Fig. 5 - MB3769A Equivalent Circuit Over Current Detection Comparator
VREF
To PWM Comp.
+IN (C)
-IN (C)
Protection element
3. DTC: Dead Time Control (Soft-Start and Quick Shutdown)
The dead time control terminal and the error amplifier output are connected to the PWM comparator. The maximum duty cycle for VDTC (voltage applied to pin 4) is obtained from the following formula (approximate value at low frequency): Duty Cycle = (3.5 - VDTC) x 50 (%) [0% duty cycle DMAX (80%) ] The dead time control terminal is used to provide soft start. In Figure 6, the DTC terminal is connected to the VREF terminal through R and C. Because capacitor C does not charge instantaneously when the power is turned on, the output transistor is kept turned off. The DTC input voltage and the output pulse width increase gradually according to the RC time constant so that the control system operates safely.
Fig. 6 - MB3769A Soft Start Function
VREF C DTC R Soft Start R2 Soft Start + DTC C R1 DTC VREF
The quick shutdown function prevents soft start malfunction when the power is turned off and on quickly. After the power is shut down, soft start is disabled because the DTC terminal has low electric potential from the beginning if the power is turned on again before the capacitor is discharged. The MB3769A prevents this by turning on the discharge transistor to quickly discharge the capacitor in the stand-by mode.
10
MB3769A
4. Triangular Wave Oscillator
The oscillation frequency is expressed by the following formula: 1 0.8 x CT x RT + 0.0002 ms [kHz] CT :F RT :k
fOSC ~
For master/slave synchronized operation of several MB3769As, the CT and RT terminals of the master MB3769A are connected in the usual way and the CT terminals of the master and slave device (s) are connected together. The slave MB3769A's RT terminal is connected to it's VREF terminal to disable the slave's oscillator. In this case, set 50/n k (n is the number of master and slave ICs) to the upper limit of RT so that internal bias currents do not stop the master oscillation.
Fig. 7 - MB3769A Synchronized Operation
master RT CT VREF
slave RT CT
5. Overvoltage Detector
The overvoltage detection circuit shuts the system power down if the switching regulator's output voltage is abnormal or if abnormal voltage is appeared. The reference voltage is 2.5 V (VREF /2). The system power is shut down if the voltage at pin 13 rises above 2.5 V. The output is kept shut down by the latching circuit until the power supply is turned off (see Figure 3).
6. Stand-by Mode and Under-Voltage Lockout (UVLO)
Generally, VGS > 6 to 8 V is required to use power MOSFET for switching. UVLO is set so that output is on at VCC 10 V (standard) when the power is turned on and is off at VCC 8 V (standard) when the power is turned off. In the stand-by mode, the power supply current is limited to 2 mA or less when the output is inhibited by the UVLO circuit. When the MB3769A is operated from the 100 VAC line, the power supply current is supplied through resistor R (Figure 8). That is, the IC power supply current is supplied by the AC line through resistor R until operation starts. Current is then supplied from the transformer tertiary winding, eliminating the need for a second power supply. Two volts (typical) of hysteresis are provided for return from operation mode to stand-by mode not to return to stand-by mode until output power is turned on or to avoid malfunction due to noise.
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MB3769A
Fig. 8 - MB3769A Primary Control
R
C MB3769A
7. Output Section
Because the output terminal (pin 9) carries a large current, the collector and emitter of the output transistor are brought out to the VH and VL terminals. In principle, VH is connected to VCC and VL is connected to GND, but VH can be supplied from another power supply (4 to 18 V). Note that VL and GND should be connected as close to the IC package as possible. A capacitor of 0.1 F or more is inserted between VH and VL (see Figure 9). Fig. 9 - MB3769A Typical Connection Circuit Of Output
12
10 9 7 8 0.1 F
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MB3769A
s
APPLICATION EXAMPLE
Fig. 10 - MB3769A DC - DC Convertor
12 to 18 V 3.6 k 3.3 k 0.1 F 10 k 330 pF 100 k 1+IN (OP) 2-IN (OP) 3FB 4DTC 5CT 6RT 7GND 8VL +IN (C) 16 IN (C) 15 20 k VREF 14 OVP 13 MB3769A VCC 12 VZ 11 VH 10 OUT 9 R S 220 pF C 51 k 18 k 10 k 5.1 k 1 2.4 k 5V 1A
Overcurrent Protection Circuit
The waveform at the output FET source terminal is shown in Figure 11. The RC time constant must be chosen so that the voltage glitch in the waveform does not cause erroneous overcurrent detection. This time constant is should be from 5 to 100 ns. A detection current value depends on R or C because a waveform is weakened. To keep this glitch as small as possible, the rectifiers on the transformer secondary winding must be the fast-recovery type.
Fig. 11 - MB3769A Output FET Source Point
Glitch Point S waveform
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MB3769A
Fig. 12 -Primary Control
100 VAC R
1 +IN(OP) +IN(C) 16 2 -IN(OP) -IN(C) 15 22 k 3 FB 4.7 F 4 DTC 5 CT 6 RT 7 GND 22 k 680 18 pF k 8 OVP 13 VCC 12 VZ 11 VH 10 9 * 22 15 k VREF 14 47 k
+
+
*:The resistance (22 )
as an output current limiter at pin 9 is required when driving the FET which is more than 1000 pF (CGS).
10 k
15 V 0V Secondly power supply
Fig. 13 -Secondly Control
12 V 43 k 10 k 39 k 1000 27 pF k
5.1 k 1 +IN(OP) +IN(C) 16 51 k 2 -IN(OP) -IN(C) 15 3 FB 4 DTC 5 CT 6 RT 7 GND 8 VL VREF 14 OVP 13 VCC 12 VZ 11 VH 10 OUT 9
10 k
680 pF
18 k
14
MB3769A
s
SHORT PROTECTION CIRCUIT
The system power can be shut down to protect the output against intermittent short-circuits or continuous overloads. This protection circuit can be configured using the OVP input as shown in Figure 14.
Fig. 14 -Case I. (Over Protection Input) Primary Mode
V0 (5V output) PC2
15 k IN-B 8.2 k IN-A
8 3 1 4 MB3761 6 5
PC1 OUT-B 500 HYS-A
9
6.8 k
500
MB3769A
14 20 k 13 PC2
7 1 F PC1 100 k 10 k
Fig. 15 -Case II. (Over Protection Input) Secondly Mode
V0 (5V output) 14 VREF MB3769A 13 OVP
20 k 15 k IN-B 8.2 k 6.8 k IN-A 3 1 5 8 6 OUT-B MB3761 2
HYS-A
1 F 200 k
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MB3769A
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HOW TO SYNCHRONIZE WITH OUTSIDE CLOCK
The MB3769A oscillator circuit is shown in Figure 16. CT charge and discharge currents are expressed by the following formula: 5V ICT = 2 x I1 = RT
Fig. 16 -Oscillator Circuit
VREF 1 k I1 2 x I1 RT + 2.5 V 300 6 5 (4 x I1) 150 CT 1.5 V 2 x I1 ICT + 500 500 + 3.5 V R Q S
This circuit shows that if the voltage at the CT terminal is set to 1.5 V or less, one oscillation cycle ends and the next cycle starts. An example of an external synchronous clock circuit is shown in Figure 17.
Fig. 17 -Typical Connection of Synchronized Outside Clock Circuit
tcycle 5 MB3769A 6 RT CT ex. MB74HC04 VP R(5.1 k ) clamp circuit (VL) VP tP tcycle = 2.5 s (fEXT = 400 kHz) tP = 0.5 s RT = 11 k
The Figure 18 shows the CT terminal waveform. VTH may be near 2.5 V. In this case, the maximum duty cycle is restricted as shown in the formula below if tP' = 0. VCT Dmax= (3.5 - 1.85) + (3.5 - VTH) (3.5 - VL ) + (3.5 - VTH ) 59% (VL = 0 V: No clamp circuit)
Fig. 18 -Voltage Waveform at CT 3.5 V VTH ( .. 2.5 V)
1.85
VL When VTH = 2.5 V, CT can be provided by followings. tcycle - tP = 1 fOSC x (3.5 - VL) + (3.5 - VTH) fOSC(3.5 - 1.5 ) x 2 tP'
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MB3769A
fOSC ~ CT ~
1 0.8 x CT x RT 1 x 0.8 x RT 4 4.5 - VL (tcycle - tP ) [pF] (RT: k, tcycle, tP: ns)
Make VL high for a large duty cycle for the clamp circuit. The circuits below can be used because the clamp voltage must be much lower than 1.5 V.
Fig. 19 -Clamp Circuit
VREF R1 (4.7 k) (1.2 V) 3 (1.2 V) 0.1 F A R2 (1.2 k) 820 0.1 F 4 5 VREF 8 MB3761
B
In circuit A, R1 and R2 must be determined considering the effects of tP R, or RT. , The transistor saturation voltage must be very small (<0.15 V) for any clamp circuit, so a transistor with a very small VCE (sat) should be used.
17
MB3769A
s
SYNCHRONIZED OUTSIDE CLOCK CIRCUIT
Fig. 20
5V 1V
1.No Clamp Circuit (Connect with GND) VP (5 V/div) CT = 150 pF + Prove Capacitor (~ 15 pF) RT = 11 k 5 pin CT (1 V/div) GND Level (CT) OUT (10 V/div) CT 150 pF MB74HC04 VP 5.1 k
10 V
500 nS
Fig. 21
5V 1V
2.Clamp Circuit A (Dividing Resistor) VP (5 V/div) CT = 220 pF + Prove capacitor (~ 15 pF) RT = 11 k 5 pin CT 220 pF GND Level (CT) OUT (10 V/div) MB74HC04 VP 5.1 k VREF 4.7 k
CT (1 V/div)
10 V
500 nS
0.1 F
1.2 k
Fig. 22
5V 1V
3.Clamp Circuit B (Apply MB3761) VP (5 V/div) CT = 220 pF + Prove capacitor (~ 15 pF) RT = 11 k 5 pin CT 220 pF GND Level (CT) 820 OUT (10 V/div) MB74HC04 VP 5.1 k VREF 8 3 MB3761 4 5
CT (1 V/div)
10 V
500 nS
0.1 F
18
MB3769A
Fig. 23 -Test Circuit
15 V (VCC) 12 1 2 3 2.5 V 4 5 6 11 k 7 8 13 9 OUT MB3769A 10 14 2.4 k 15 2.4 k 16
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MB3769A
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TYPICAL PERFORMANCE CHARACTERISTICS
Fig. 24 -Power Supply Current vs. Power Supply Voltage (Low Voltage stop of VCC)
Power Supply Current ICC (mA) Standly Current ISTB (mA) 10.0 8.0 6.0 4.0 2.0 0.0 0.0 4.0 8.0 12.0 16.0 20.0 OVP operating OVP operating V13 = 5 V Normal operating V13 = 0 V
Fig. 25 -Standby Current vs.Temp.
2 VCC = 8 V
1
0 -30 0 25 50 Temp. TA (C) 85
Power Supply Voltage VCC (V)
5.1 Reference Voltage VREF (V)
Fig. 26 -Reference Voltage vs. Temp.
"L" level Output Voltage VOL (V) VCC = 15 V IREF = 1 mA 3
Fig. 27 -"L" level Output Voltage vs. "L" level Output Current
VCC = 15 V TA = 25 C 2
750 V/C 5.0
1
4.9 0 -30
0 0 25 50 Temp. TA (C) 85
0.2
0.4
0.6
0.8
"L" level Output Current IOL (mA)
Fig. 28 -"H" level Output Voltage vs. "H" level Output Current
"H" level Output Voltage VOH (V) 5 4 3 2 1 0 2 4 6 8 "H" level Output Current IOH (mA) 10 VCC = 15 V TA = 25 C
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MB3769A
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TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Fig. 29 -Oscillator Frequency vs. RT, CT
700 500 400 300 Oscillator Frequency fOSC (kHz)
"H", "L" level Output Voltage VH, VL (V)
Fig. 30 -"H", "L" level Output Voltage vs. Oscillator Frequency
4 VCC = 15 V TA = 25 C VH VH VL 2 VL 1
CT = 100 pF
3
200
CT = 680 pF
CT = 220 pF
0
20 k
50 k
100 k 200 k
500 k
1M
100 90 80 70 CT = 1000 pF 60 50 40 30 CT = 2200 pF 20 7 8 9 10 20 RT (k) 30 40 50 60 70
Frequency fOSC (Hz)
Fig. 32 -Oscillator Frequency vs. Temp.
VCC = 15 V Oscillator Frequency fOSC (%) 4 100 kHz
2 300 kHz 500 kHz
0 -2
Fig. 31 -Duty Cycle vs. Dead Time Control Voltage
100 Dead Time Control Voltage VDTC (V) fOSC = 200 kHz 80 fOSC = 500 kHz 60 Duty Cycle (%) VCC = 15 V CT = 1000 pF TA = 25 C
-4 -30
Target fOSC = 100 kHz 2 % typ. 0 25 50 85 Temp. TA (C)
Fig. 33 -Dead Time Control Voltage vs. Current(Standby Mode)
5.0 4.0 3.0 2.0 1.0 VCC = 7 V TA = 25 C
40
20
0
0
1
2
3
4
5
0
Dead Time Control Voltage VDTC (V)
-0.2 -0.4 -0.6 -0.8 -1.0 -1.2 Dead Time Control Current IDTC (mA)
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MB3769A
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TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Fig. 34 -Gain/Phase vs. Frequency (Set Gv = 60 dB)
60 40 Gain (dB) 20 0 Gain -360 VCC = 15 V TA = 25 C Phase -180 -240 -300 Phase (deg) Duty Cycle (%) 55
Fig. 35 -Duty cycle vs. Temp.
VCC = 15 V CL = 1000 pF VDTC = 2.5 V
50
fOSC = 200 kHz
fOSC = 500 kHz
10 k
100 k
1M
10 M
Frequency f (Hz)
45 0 -30
0
25
50
85
Temp. TA (C)
Fig. 36 -"L" level Output Voltage vs. "L" level Output Current
"L" level Output Voltage VOL (V) 1.5 VCC = 15 V TA = 25 C 160 1.0 140 0.5 120 0 tr/tf/td (ns) 0 100 200 300 400 500 "L" level Output Current IOL (mA) 600 100 td
Fig. 38 -tr/tf of Output and td of Comparator vs. Temp.
VCC = 15 V CL = 1000 pF
80 tr 60
Fig. 37 -"H" level Output Voltage vs. "H" level Output Current
"H" level Output Voltage VOH (V) 14.0 VCC = 15 V TA = 25 C
13.5
40 tf
13.0
20 0
12.5 0 0 100 200 300 400 500 "H" level Output Current IOH (mA) 600
-30
0
-25 50 Temp. TA (C)
85
22
MB3769A
s
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Fig. 39 -OVP Latch Standby Power Supply Current vs. Temp.
6 Standby Power Supply Current (mA) 5 VCC = 8 V 4 pin open 13 pin = 3 V
Fig. 40 -OVP Supply Voltage Reset vs. Temp.
OVP Supply Voltage Reset (V)
5
4
4
3
3
2
2
1
0 -40 -20
0 20
40 60 80 100
0 -40 -20
Temp. TA (C)
0 20 40 60 80 100 Temp. TA (C)
23
MB3769A
16-LEAD PLASTIC DUAL IN-LINE PACKAGE (CASE No.: DIP-16P-M04)
+0.20 .770 +.008 (19.55 ) -0.30 -.012
15MAX
INDEX-1 .244.010 (6.200.25) .300(7.62) TYP
INDEX-2 .039 +.012 -0 (0.99 +0.30 ) -0 .060 +.012 -0 (1.52 +0.30 ) -0 .010.002 (0.250.05)
.172(4.36)MAX
.118(3.00)MIN .100(2.54) TYP .050(1.27) MAX
.020(0.51)MIN .018.003 (0.460.08)
(c)1990 FUJITSU LIMITED D160335-2C-2
Dimensions in inches (millimeters)
24
MB3769A
16-LEAD PLASTIC FLAT PACKAGE (CASE No.: FPT-16P-M06)
+.010 +0.25 (10.15 ) .400 -.008 -0.20 .089(2.25)MAX (MOUNTING HEIGHT) .002(0.05)MIN (STAND OFF HEIGHT)
INDEX "B"
.307.016 (7.800.40) .209.012 (5.300.30)
.268
+0.40 +.016 (6.80 -0.20 ) -.008
.050(1.27) TYP
.018.004 (0.450.10)
.005(0.13)
M
.020.008 (0.500.20) +.002 (0.15+0.05 ) .006 -0.02 -.001
"A"
Details of "A" part .016(0.40)
Details of "B" part .006(0.15)
.004(0.10) .350(8.89) REF
.008(0.20) .007(0.18) MAX .027(0.68) MAX
.008(0.20) .007(0.18) MAX .027(0.68) MAX
Dimensions in inches (millimeters)
(c)1991 FUJITSU LIMITED F16015S-2C
25
MB3769A
FUJITSU LIMITED
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Japan FUJITSU LIMITED Corporate Global Business Support Division Electronic Devices KAWASAKI PLANT, 1015, Kamikodanaka Nakahara-ku, Kawasaki-shi Kanagawa 211, Japan Tel: (044) 754-3753 Fax: (044) 754-3329 North and South America FUJITSU MICROELECTRONICS, INC. Semiconductor Division 3545 North First Street San Jose, CA 95134-1804, U.S.A. Tel: (408) 922-9000 Fax: (408) 432-9044/9045 Europe FUJITSU MIKROELEKTRONIK GmbH Am Siebenstein 6-10 63303 Dreieich-Buchschlag Germany Tel: (06103) 690-0 Fax: (06103) 690-122 Asia Pacific FUJITSU MICROELECTRONICS ASIA PTE. LIMITED No. 51 Bras Basah Road, Plaza By The Park, #06-04 to #06-07 Singapore 189554 Tel: 336-1600 Fax: 336-1609
All Rights Reserved. Circuit diagrams utilizing Fujitsu products are included as a means of illustrating typical semiconductor applications. Complete information sufficient for construction purposes is not necessarily given. The information contained in this document has been carefully checked and is believed to be reliable. However, Fujitsu assumes no responsibility for inaccuracies. The information contained in this document does not convey any license under the copyrights, patent rights or trademarks claimed and owned by Fujitsu. Fujitsu reserves the right to change products or specifications without notice. No part of this publication may be copied or reproduced in any form or by any means, or transferred to any third party without prior written consent of Fujitsu. The information contained in this document are not intended for use with equipments which require extremely high reliability such as aerospace equipments, undersea repeaters, nuclear control systems or medical equipments for life support.
F9601 (c) FUJITSU LIMITED Printed in Japan

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