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TCA5600 TCF5600 Universal Microprocessor Power Supply/Controllers
The TCA5600, TCF5600 are versatile power supply control circuits for microprocessor based systems and are mainly intended for automotive applications and battery powered instruments. To cover a wide range of applications, the devices offer high circuit flexibility with a minimum of external components. Functions included in this IC are a temperature compensated voltage reference, on-chip dc/dc converter, programmable and remote controlled voltage regulator, fixed 5.0 V supply voltage regulator with external PNP power device, undervoltage detection circuit, power-on RESET delay and watchdog feature for safe and hazard free microprocessor operations. * 6.0 V to 30 V Operation Range
UNIVERSAL MICROPROCESSOR POWER SUPPLY/CONTROLLERS
SEMICONDUCTOR TECHNICAL DATA
* * * * * * * * * * * * *
2.5 V Reference Voltage Accessible for Other Tasks Fixed 5.0 V 4% Microprocessor Supply Regulator Including Current Limitation, Overvoltage Protection and Undervoltage Monitor. Programmable 6.0 V to 30 V Voltage Regulator Exhibiting High Peak Current (150mA), Current Limiting and Thermal Protection. Two Remote Inputs to Select the Regulator's Operation Mode: OFF = 5.0 V, 5.0 V Standby Programmable Output Voltage Self-Contained dc/dc Converter Fully Controlled by the Programmable Regulator to Guarantee Safe Operation Under All Working Conditions Programmable Power-On RESET Delay Watchdog Select Input Negative Edge Triggered Watchdog Input Low Current Consumption in the VCC1 Standby Mode All Digital Control Ports are TTL and MOS-Compatible Microprocessor Systems with E2PROMs High Voltage Crystal and Plasma Displays Decentralized Power Supplies in Computer Telecom Systems
RESET Vout1 Sense VCC1 WDI Vref INH1 Vout2 Prog Vout2 Output Converter Output 1 2 3 4 5 6 7 8 9 (Top View) Min 5.0 5.5 -- 6.0 0 Max 30 30 800 30 2.0 Unit V 18 WDS 17 Delay 16 Iout1 Sense 15 Base Drive 14 VCC2 13 GND 12 Current Sense 11 INH2 10 Converter Input
18 1
PLASTIC PACKAGE CASE 707
PIN CONNECTIONS
Applications Include:
RECOMMENDED OPERATING CONDITIONS
Characteristics Power Supply Voltage Collector Current Output Voltage Reference Source Current Symbol VCC1 VCC2 IC Vout2 Iref
ORDERING INFORMATION
mA V mA Device TCA5600 TCF5600 Operating Temperature Range TJ = 0 to +125C TJ = - 40 to +150C Package Plastic DIP Plastic DIP
Rev 0
(c) Motorola, Inc. 1996
MOTOROLA ANALOG IC DEVICE DATA
1
TCA5600 TCF5600
MAXIMUM RATINGS (TA = +25C [Note 1], unless otherwise noted.)
Rating Power Supply Voltage (Pin 3,14) Base Drive Current (Pin 15) Collector Current (Pin 10) Forward Rectifier Current (Pin 10 to Pin 9) Logic Inputs INH1, INH2, WDS (Pin 6, 11, 18) Logic Input Current WDI (Pin 4) Output Sink Current RESET (Pin 1) Analog Inputs (Pin 2) Analog Inputs (Pin 7) Reference Source Current (Pin 5) Power Dissipation (Note 2) TA = +75C TCA5600 TA = +85C TCF5600 Thermal Resistance, Junction-to-Air Operating Ambient Temperature Range TCA5600 TCF5600 Operating Junction Temperature Range TCA5600 TCF5600 Storage Temperature Range Iref PD 500 650 RJA TA 0 to +75 -40 to +85 TJ +125 +150 Tstg -65 to +150 C C 100 C/W C Symbol VCC1, VCC2 IB IC IF VINP IWDI IRES Value 35 20 1.0 1.0 -0.3 V to VCC1 0.5 10 -0.3 to 10 -0.3 to 5.0 5.0 Unit Vdc mA A A Vdc mA mA V mA mW
NOTES: 1. Values beyond which damage may occur. 2. Derate at 10 mW/C for junction temperature above +75C (TCA5600). Derate at 10 mW/C for junction temperature above +85C (TCF5600).
Representative Block Diagram
Supply Voltage V CC2 14 V out2 Programming Converter Input Converter Output Regulator Vout2 Current Sense Current Sense 16 Current Limit Voltage Protection
10
9
12
7
8
Inhibit 2 11 (INH2) Inhibit 1 6 (INH1) Supply Voltage VCC1 3
DC/DC Converter
A2
A1 Reference 2.5V Thermal Shut-Down A1
15 2
PNP Base Drive Vout1 Sense
RESET
1 Delay Circuit Comp. II 17 Delay 18 WDS 4 WDI Watchdog Comp. I 5 Vref 13 Gnd
2
MOTOROLA ANALOG IC DEVICE DATA
TCA5600 TCF5600
ELECTRICAL CHARACTERISTICS (VCC1 = VCC2 = 12 V; TJ = 25C; Iref = 0; Iout1 = 0 [Note 3]; RSC = 0.5 ; INH = High
INH2 = High; WDS = High; Iout2 = 0 [Note 4]; unless otherwise noted.) Characteristics REFERENCE SECTION Nominal Reference Voltage Reference Voltage Iref = 0.5 mA, Tlow TJ Thigh (Note 5), 6.0 V VCC1 18 V Line Regulation (6.0 V VCC2 18 V) Average Temperature Coefficient Tlow TJ Thigh (Note 5) Ripple Rejection Ratio f = 1.0 kHz, Vsin = 1.0 Vpp Output Impedance 0 Iref 2.0 mA Standby Current Consumption VCC2 = Open 5.0 V MICROPROCESSOR VOLTAGE REGULATOR SECTION Nominal Output Voltage Output Voltage 5.0 mA Iout1 300 mA, Tlow TJ Thigh (Note 5) 6.0 V VCC2 18 V Line Regulation (6.0 V VCC2 18 V) Load Regulation (5.0 mA Iout1 300 mA) Base Current Drive (VCC2 = 6.0 V, V15 = 4.0 V) Ripple Rejection Ratio f = 1.0 kHz, Vsin = 1.0 Vpp Undervoltage Detection Level (RSC = 5.0 ) Current Limitation Threshold (RSC = 5.0 ) Average Temperature Coefficient Tlow TJ Thigh (Note 5) DC/DC CONVERTER SECTION Collector Current Detection Level High RC = 10 k Low Collector Saturation Voltage IC = 600 mA (Note 6) Rectifier Forward Voltage Drop IF = 600 mA (Note 6) 9 10 11 V12(H) V12(L) VCE(sat) VF 350 -- -- -- 400 50 -- -- 450 -- 1.6 1.4 mV V V 3 7 5 6 Regline Regload IB RR Vlow VRSC Vout1 TJ -- -- 10 50 4.5 210 -- 10 20 15 65 0.93 x Vout1 250 -- 50 100 -- -- -- 290 1.0 mV mV mA dB V mV mV/C Vout1(nom) Vout1 4.8 4.75 5.0 -- 5.2 5.25 V V 4 2 1 Vref nom Vref Regline Vref TJ RR ZO ICC1 2.42 2.4 -- -- 2.5 -- 2.0 -- 2.58 2.6 15 0.5 V V mV mV/C Figure Symbol Min Typ Max Unit
3
60 -- --
70 1.0 3.0
-- -- --
dB mA
NOTES: 3. The external PNP power transistor satisfies the following minimum specifications: hFE 60 at IC = 500 mA and VCE = 5.0 V; VCE(sat) 300 mV at IB = 10 mA and IC = 300 mA 4. Regulator Vout2 programmed for nominal 24 V output by means of R4, R5 (see Figure 1). 5. Tlow = 0C for TCA5600 Tlow = -40C for TCF5600 Thigh = +125C for TCA5600 Thigh = +150C for TCF5600 6. Pulse tested tp 300 s.
MOTOROLA ANALOG IC DEVICE DATA
3
TCA5600 TCF5600
ELECTRICAL CHARACTERISTICS (VCC1 = VCC2 = 12 V; TJ = 25C; Iref = 0; Iout1 = 0 [Note 3]; RSC = 0.5 ; INH = High ELECTRICAL CHARACTERISTICS INH2 = High; WDS = High; Iout2 = 0 [Note 4]; unless otherwise noted.)
Characteristics PROGRAMMABLE VOLTAGE REGULATOR SECTION (Note 6) Nominal Output Voltage Output Voltage (Figure 8) 1.0 mA Iout2 100 mA, Tlow TJ Thigh (Notes 5, 7) Load Regulation 1.0 mA Iout2 100 mA (Note 7) DC Output Current Peak Output Current (Internally Limited) Ripple Rejection Ratio f = 20 kHz, V = 0.4 Vpp Output Voltage (Fixed 5.0 V) 1.0 mA Iout2 20 mA, Tlow TJ Thigh INH1 = HIGH (Note 5) Off State Output Impedance (INH2 = Low) Average Temperature Coefficient Tlow TJ Thigh (Note 5) WATCHDOG AND RESET CIRCUIT SECTION Threshold Voltage (Static) High Low VC5(H) VC5(L) IC5 -1.8 -- -- VWDI ri tp -- 12 -- -2.5 5xIC5 -50xIC5 -- 15 -- -3.2 -- -- 5.5 -- 10 V k s -- -- 2.5 1.0 -- -- V A Vout2(nom) Vout2 Regload Iout2 Iout2 p RR Vout2(5.0 V) 23 22.8 -- 100 150 45 4.75 24 -- 40 -- 200 55 -- 25 25.2 200 -- -- -- 5.25 V V mV mA mA dB V Symbol Min Typ Max Unit
Rout1 Vout2 TJVout2
-- --
10 --
-- 0.25
k mV/C V
Current Source Tlow TJ Thigh (Note 5) Power-Up RESET Watchdog Time Out Watchdog RESET Watchdog Input Voltage Swing Watchdog Input Impedance Watchdog Reset Pulse Width (C8 = 1.0 nF) (Note 9) DIGITAL PORTS: WDS, INH 1, INH 2, RESET (Note 8) Input Voltage Range Input High Current 2.0 V VIH 5.5 V 5.5 V VIH VCC1 Input Low Current -0.3 V VIL 0.8 V for INH1, INH2, -0.3 V VIL 0.4 V for WDS Leakage Current Immunity (INH2, High "Z" State) (Figure 12) Output Low Voltage RESET (IOL = 6.0 mA) Output High Voltage RESET (VOH = 5.5 V)
VINP IIH
-- -- --
-- -- -- -- -- -- --
-0.3 to VCC1 100 150
V A
IIL -- IZ VOL VOH 20 -- -- -100 -- 0.4 20
A A V A
NOTES: 3. The external PNP power transistor satisfies the following minimum specifications: hFE 60 at IC = 500 mA and VCE = 5.0 V; VCE(sat) 300 mV at IB = 10 mA and IC = 300 mA 4. Regulator Vout2 programmed for nominal 24 V output by means of R4, R5 (see Figure 1). 5. Tlow = 0C for TCA5600 Tlow = -40C for TCF5600 Thigh = +125C for TCA5600 Thigh = +150C for TCF5600 6. V9 = 28 V, INH1 = LOW for this Electrical Characteristic section unless otherwise noted. 7. Pulse tested tp 300 s. 8. Temperature range Tlow TJ Thigh applies to this Electrical Characteristics section. 9. For test purposes, a negative pulse is applied to Pin 4 (-2.5 V V4 -5.5 V).
4
MOTOROLA ANALOG IC DEVICE DATA
TCA5600 TCF5600
Figure 1. Reference Voltage versus Supply Voltage
V ref nom , REFERENCE VOLTAGE (V)
2.4 2.0 1.6 1.2 0.8 +
VCC1 6 3 NC NC 12 4 17 NC 13 8 R4 86k R5 10k 11 18
NC 10 9 14 16 15 7 5 12 NC Vref nom
RSC 0.5
Q1 BD242SP Vout1 + 10F C4
0.4 0 1.0 2.0 3.0 4.0 5.0 10 20 30 40 VCC1, SUPPLY VOLTAGE (V)
Vout2
Figure 2. Reference Stability versus Temperature
TCA5600 60 V ref , VOLTAGE DRIFT (mV) 40 20 +0 -20 -40 -60 -50 -25 TCF5600 0 25 50 75 100 TJ, JUNCTION TEMPERATURE (C) 125 150 + NC NC VCC1 6 3 12 4 17 NC Vout2 13 8 R4 86k R5 10k 7 5 12 NC Vref + Vref nom + 10F C4 11 18 NC 10 9 14 16 15 Q1 BD242SP Vout1 RSC 0.5
Figure 3. Ripple Rejection versus Frequency
= 1.0 VPP RR, RIPPLE REJECTION RATIO (dB) 70 60 50 40 30 20 10 0 1.0 k 10 k 100 k f,FREQUENCY (Hz) 1.0 M VCC1 Vout1 Vref R3 + 150 NC NC 0.33F C6 6 3 12 4 17 NC Vout2 13 8 R4 86k R5 10k 7 5 12 NC Vref nom + 10F C4 11 18 NC 10 9 14 16 15 Q1 BD242SP Vout1 RSC 0.5
MOTOROLA ANALOG IC DEVICE DATA
5
TCA5600 TCF5600
Figure 4. Standby Current versus Supply Voltage
ICC1 , STAND-BY CURRENT (mA)
6 5 + 4 3 2 1 0 1.0 2.0 3.0 4.0 5.0 10 20 30 40 VCC1, SUPPLY VOLTAGE (IV)
VCC1
ICC1 6 3 NC NC 12 4 17 NC Vout2 13 8 R4 86k R5 10k 11 18
NC 10 9 14 16 15 7 5 12 NC Vref
RSC 0.5
Q1 BD242SP Vout1 + 10F C4
Figure 5. Power-Up Behavior of the 5.0 V Regulator
6 V out1 , OUTPUT VOLTAGE (V) VCC1 5 4 3 2 1 0 1.0 2.0 3.0 4.0 5.0 10 20 30 40 VCC2, SUPPLY VOLTAGE (IV) Iout = 300 mA + NC NC 6 3 12 4 17 NC Vout2 13 8 R4 86k R5 10k 11 18
NC 10 9 14 16 15 7 5 12 NC 16.7 Rout1
RSC 0.5
Q1 BD242SP Iout1 Vout1 + C4 10F
Vref
Figure 6. Foldback Characteristics of the 5.0 V Regulator
7.0 V CC2 , SUPPLY VOLTAGE (V) 6.0 5.0 4.0 3.0 2.0 1.0 0 0 100 200 300 400 500 600 Iout1, OUTPUT CURRENT (mA) 28 V 24 V VCC2 20 V VCC1 + + NC NC VCC1 6 3 12 4 17 NC Vout2 13 8 R4 86k R5 10k Vref 7 5 12 NC Rout1 Iout1 100 11 18 NC 10 9 14 16 15 Q1 BD242SP Vout1 + C4 10F
RSC 0.5
6
MOTOROLA ANALOG IC DEVICE DATA
TCA5600 TCF5600
Figure 7. Undervoltage Lockout Characteristics
7 V RES , RESET VOLTAGE (V) 6 + 5 4 3 2 1 0 0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Vout1, OUTPUT VOLTAGE (V)
VCC1 6 3 NC NC 12 4 17 NC Vout2 13 8 R4 86k R5 10k 11 18
NC 10 9 14 16 15 7 5 12 R6 10k Vref RESET
RSC 0.5
Q1 BD242SP Vout1 + C4 10F
Figure 8. Output Current Capability of the Programming Regulator
28 V g , SUPPLY VOLTAGE (V) 24 20 16 12 8.0 4.0 0 0 20 40 60 80 100 120 Iout2, OUTPUT CURRENT (mA) 140 160 + V9 + VCC1 NC NC 3 12 4 17 NC Iout2 Rout2 5.0k C3 47nF 13 8 R4 86k R5 10k 6 11 18
NC 10 9 14 16 15 7 5 12 NC Vref
RSC 0.5
Q1 BD242SP Vout1 + 10F C4
Figure 9. Collector Current Detection Level
10k RC V10 18 10 9
V 10, COLLECTOR VOLTAGE (V)
16 + 12 8.0 4.0 0 0 100 200 300 400 V12, CURRENT SENSE VOLTAGE (mV) 500 V12(L) V12(H) V12 VCC1 NC 6 3 12 4 17 NC Vout2 13 11
RSC 0.5 14 16 15 Q1 BD242SP Vout1 + 10F C4
8 R4 86k R5 10k
7
5
12 NC
Vref
MOTOROLA ANALOG IC DEVICE DATA
7
TCA5600 TCF5600
Figure 10. Power Switch Characteristics
VCE(sat), SATURATION VOLTAGE (V) IC10 1.8 1.6 1.4 1.2 1.0 0.8 0.6 10 20 30 50 80 100 200 300 500 800 NC + VCC1 6 3 12 4 17 NC Vout2 13 8 R4 86k R5 10k Vref 7 5 11 18 10 9 14 16 15 12 NC + 10F C4 Q1 BD242SP Vout1 RSC 0.5
IC10, COLLECTOR CURRENT (mA)
Figure 11. Rectifier Characteristics
IF 1.8 VF, FORWARD VOLTAGE (V) 1.6 1.4 1.2 1.0 0.8 0.6 10 20 30 50 80 100 200 300 IF, RECTIFIER CURRENT (mA) 500 800 + VCC1 3 NC NC 12 4 17 NC Vout2 13 8 R4 86k R5 10k Vref 7 5 12 NC + 10F C4 6 11 18 10 9 14 16 15 Q1 BD242SP Vout1 RSC 0.5
Figure 12. INH 2 Leakage Current Immunity
Vout2 , OUTPUT VOLTAGE (V)
28 24 20 16 12 8.0 4.0 0 -40 -30 -20
Vout2 + Spec Limits High "Z" State IZ V10 -10 0 10 20 IZ, LEAKAGE CURRENT (A) 30 40 VCC1 NC 6 3 12 4 17 NC Vout2 C3 47nF 13 8 11 18
10k V10 10
RC 9 14 16 15 7 5 12 NC Vref
RSC 0.5
Vg
Q1 BD242SP Vout1 + 10F C4
R4 86k R5 10k
8
MOTOROLA ANALOG IC DEVICE DATA
TCA5600 TCF5600
APPLICATIONS INFORMATION
(See Figure 18) Voltage Reference (Vref) The voltage reference Vref is based upon a highly stable bandgap voltage reference and is accessible on Pin 5 for additional tasks. This circuit part has its own supply connection on Pin 3 and is, therefore, able to operate in standby mode. The RC network R3, C6 improves the ripple rejection on both regulators. DC/DC Converter The dc/dc converter performs according to the flyback principle and does not need a time base circuit. The maximum coil current is well defined by means of the current sensing resistor R1 under all working conditions (startup phase, circuit overload, wide supply voltage range and extreme load current change). Figure 13 shows the Simplified Converter Schematic. Figure 13. Simplified Converter Schematic
VCC2 L1 300H Control Feedback V12(H) V12(L) 10 VF Comp VCE(sat) C2 12 R1 0.68 9 Prog. Regulator 8 R4 85K C3 47nF Vout2
Figure 14. Voltage and Current Waveform on the Coil (not to scale)
Coil Voltage VCC2
Coil Current ILpeak
The coil charging time t1 is found using Equation (4): t1 = 1 1 (1 + ) f (4)
+
[f : minimum oscillation frequency which should be chosen above the audio frequency band (e.g. 20 kHz)] Knowing the dc output current Iout2 of the programmable regulator, the peak coil current IL(peak) can now be calculated: IL(peak) = 2 (Iout2) (1 + ) (5)
7 R5 10k
+
C7 0.22F
100 F
The coil inductance L1 of the nonsaturated coil is given by Equation (6): L1 = t1 (VL-) IL(peak) (6)
A simplified method on "how to calculate the coil inductance" is given below. The operation point at minimum supply voltage (VCC2) and max. output current (Iout2) for a fixed output voltage (Vout2) determines the coil data. Figure 14 shows the typical voltage and current waveforms on the coil L1 (coil losses neglected). Equations (1) and (2) yield the respective coil voltage VL - and VL + (see Figure 14): VL+ = Vout2 + V(Pin 9 - Pin 8) + VF - VCC2 VL- = VCC2 - VCE(sat) - V12(H) (1) (2)
The formula (6a) yields the current sensing resistor R1 for a defined peak coil current IL(peak): R1 = V12(H) IL(peak) (6a)
In order to limit the by-pass current through capacitor C7 during the energy dumping phase the value C2>>C7 should be implemented. For all other operation conditions, the feedback signal from the programmable voltage regulator controls the activity of the converter.
[V(Pin 9 - Pin 8): input/output voltage drop of the regulator, 2.5 V typical] [VF, VCE(sat), V12(H): see Electrical Characteristics Table] The time ratio for the charging time to dumping time is defined by Equation (3): = t1 VL+ = t2 VL- (3)
MOTOROLA ANALOG IC DEVICE DATA
EEEE E EEEE E EE EE
t1 t2
VL -
VL +
t
t
9
TCA5600 TCF5600
Programmable Voltage Regulator This series voltage regulator is programmable by the voltage divider R4, R5 for a nominal output voltage of 6.0 V Vout2 30 V. (Vout2 - Vref nom) * R5 Vref nom [R5 = 10 k, Vref nom = 2.5 V] R4 = (7) Microprocessor Supply Regulator Together with an external PNP power transistor (Q1), a 5.0 V supply exhibiting low voltage drop is obtained to power microprocessor systems and auxiliary circuits. Using a power Darlington with adequate heat sink in the output stage boosts the output current Iout1 above 1.0 A. The current limitation circuit measures the emitter current of Q1 by means of the sensing resistor, RSC: RSC = VRSC IE (8)
Current limitation and thermal shutdown capability are standard features of this regulator. The voltage drop V(Pin 9 - Pin 8) across the series pass transistor generates the feedback signal to control the dc/dc converter (see Figure 13). Control Inputs INH1, INH2 The dc/dc converter and/or the regulator Vout2 are remote controllable through the TTL, MOS compatible inhibit inputs INH1 and INH2 where the latter is a three-level detector (Logic "0", High Impedance "Z", Logic "1"). Both inputs are set-up to provide the following truth table: Figure 15. INH1, INH2 TruthTable
Mode 1 2 3 4 5 6 INT: ON: INH1 0 0 0 1 1 1 INH2 0 High "Z" 1 0 High "Z" 1 Vout2 OFF Vout2 Vout2 OFF 5.0 V 5.0 V DC/DC INT ON INT INT ON INT
[IE: emitter current of Q1] [VRSC: threshold voltage [VRSC: (see Electrical Characteristics Table)] The voltage protection circuit performs a foldback characteristic above a nominal operating voltage, VCC2 18 V. Delay and Watchdog Circuit The undervoltage monitor supervises the power supply Vout1 and releases the delay circuit RESET as soon as the regulator output reaches the microprocessor operating a range [e.g., Vlow 0.93 * Vout1(nom)]. The RESET output has an open-collector and may be connected in a "wired-OR" configuration. The watchdog circuit consists of a retriggerable monostable with a negative edge sensitive control input WDI. The watchdog feature may be disabled by means of the watchdog select input WDS driven to a "1". Figure 17 displays the Typical RESET Timing Diagram. The commuted current source IC5 on Pin 17, threshold voltage VC5(L), VC5(H) and an external capacitor C5 define the RESET delay and the watchdog timing. The relationship of the timing signals are indicated by the Equations (9) to (11).
w
OFF:
Intermittent operation of the converter means that the converter operates only if VCC2Figure 16 represents a typical timing diagram for an E2PROM programming sequence in a microprocessor based system. The High "Z" state enables the dc/dc converter to ramp during t3 to the voltage V9 at Pin 9 to a high level before the write cycle takes place in the memory. Figure 16. Typical E2PROM Programming Sequence (not to scale)
V9 VCC2 - VF V9 max V9 int t3 t4 t Vout2 5.0V INH1 "1" "0" INH2 "1" "0" Programming Voltage VPP
RESET delay:
td =
C5 * VC5(H) |IC5| C5 * (VC5(H) - VC5(L)) 5 * IC5
(9)
Watchdog timeout:
twd =
(10)
Watchdog RESET:
tr =
C5 * (VC5(H) - VC5(L)) 50 * |IC5|
(11)
[IC5, VC5(H), VC5(L): see Electrical Characteristics Table]
High "Z"
10
MOTOROLA ANALOG IC DEVICE DATA
TCA5600 TCF5600
Figure 17. Typical RESET Timing Diagram (not to scale)
VCC2 Overload Vout1 (a) VC5 RESET VC5(N)
VCC2 < Vout1
td
twd VC5(H) VC5(L) tr
VC5 WDI (b) RESET
(a) Watchdog inhibited, WDS = "1" (b) Watchdog operational, WDS = "0"
Figure 18. Typical Automative Application
D1 MR752 Vbat Ignition Key C1 220F + Z1 MR2525L R3 150 INH 2 11 100F C2 300 H L1 R1 0.68 VD 9 12 86k 0.22F C7 R5 10k 7 R4 + C3 47 nF 8 Vout2 R2 0.5
24V 50mA VCC2 14
10
16
P C9 22nF
DC/DC Converter
A2
Current Limit
Voltage Protection Q1*
P
6 INH 1 TCA5600 3 Reference 2.5V Thermal Shut-Down A1
A1
15 2
BD242SP Vout1 5.0V/300mA
VCC1
C6 0.33F RESET P
150F + C4
1 Delay Circuit Watchdog
17 IC 5 C5 100nF
18 WDS
4 WDI C8 330pF P
5 Vref
13
Gnd
MOTOROLA ANALOG IC DEVICE DATA
11
TCA5600 TCF5600
OUTLINE DIMENSIONS
PLASTIC PACKAGE CASE 707-02 ISSUE C
NOTES: 1. POSITIONAL TOLERANCE OF LEADS (D), SHALL BE WITHIN 0.25 (0.010) AT MAXIMUM MATERIAL CONDITION, IN RELATION TO SEATING PLANE AND EACH OTHER. 2. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 3. DIMENSION B DOES NOT INCLUDE MOLD FLASH. MILLIMETERS MIN MAX 22.22 23.24 6.10 6.60 3.56 4.57 0.36 0.56 1.27 1.78 2.54 BSC 1.02 1.52 0.20 0.30 2.92 3.43 7.62 BSC 0_ 15_ 0.51 1.02 INCHES MIN MAX 0.875 0.915 0.240 0.260 0.140 0.180 0.014 0.022 0.050 0.070 0.100 BSC 0.040 0.060 0.008 0.012 0.115 0.135 0.300 BSC 0_ 15 _ 0.020 0.040
18 1
10
B
9
A C L
N F H G D
SEATING PLANE
K M J
DIM A B C D F G H J K L M N
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola 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 consequential or incidental damages. "Typical" parameters which may be provided in Motorola 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. Motorola does not convey any license under its patent rights nor the rights of others. Motorola 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 Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola 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 Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. 1-800-441-2447 or 602-303-5454 MFAX: RMFAX0@email.sps.mot.com - TOUCHTONE 602-244-6609 INTERNET: http://Design-NET.com
JAPAN: Nippon Motorola Ltd.; Tatsumi-SPD-JLDC, 6F Seibu-Butsuryu-Center, 3-14-2 Tatsumi Koto-Ku, Tokyo 135, Japan. 03-81-3521-8315 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852-26629298
12
*TCA5600/D*
MOTOROLA ANALOG IC DEVICE DATA TCA5600/D


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