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PDF TCA5600 Data sheet ( Hoja de datos )

Número de pieza TCA5600
Descripción UNIVERSAL MICROPROCESSOR POWER SUPPLY/CONTROLLERS
Fabricantes Motorola Semiconductors 
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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
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
Applications Include:
Microprocessor Systems with E2PROMs
High Voltage Crystal and Plasma Displays
Decentralized Power Supplies in Computer Telecom Systems
UNIVERSAL
MICROPROCESSOR POWER
SUPPLY/CONTROLLERS
SEMICONDUCTOR
TECHNICAL DATA
18
1
PLASTIC PACKAGE
CASE 707
PIN CONNECTIONS
RESET 1
Vout1 Sense 2
VCC1 3
WDI 4
Vref 5
INH1 6
Vout2 Prog 7
Vout2 Output 8
Converter Output 9
18 WDS
17 Delay
16 Iout1 Sense
15 Base Drive
14 VCC2
13 GND
12 Current Sense
11 INH2
10 Converter Input
RECOMMENDED OPERATING CONDITIONS
Characteristics
Symbol Min Max Unit
Power Supply Voltage
VCC1 5.0 30
VCC2 5.5 30
V
Collector Current
Output Voltage
Reference Source Current
IC
Vout2
Iref
— 800 mA
6.0 30
V
0 2.0 mA
(Top View)
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
TCA5600
TCF5600
TJ = 0° to +125°C
TJ = – 40° to +150°C
Plastic DIP
Plastic DIP
MOTOROLA ANALOG IC DEVICE DATA
© Motorola, Inc. 1996
Rev 0
1

1 page




TCA5600 pdf
TCA5600 TCF5600
Figure 1. Reference Voltage versus Supply Voltage
2.4
2.0
1.6
1.2
0.8
0.4
0
1.0
2.0 3.0 4.0 5.0 10 20 30 40
VCC1, SUPPLY VOLTAGE (V)
VCC1
+
NC
NC
6 11 18
3
12
4
17 13
8
NC
Vout2
NC
10 9
14
16
15
7 5 12
NC
R4
86k
Vref nom
R5
10k
RSC
0.5
Q1
BD242SP
Vout1
+
10µF C4
Figure 2. Reference Stability versus Temperature
60
40
20
+0
–20
–40
–60
–50 –25
TCA5600
TCF5600
0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
VCC1
+
NC
NC
6 11 18
3
12
4
17 13
8
NC
Vout2
NC
RSC
0.5
10
9
14
16
15 Q1
BD242SP
7 5 12
Vout1
+
R4 NC 10µF C4
86k
Vref
R5
10k
+
Vref nom
70
60
50
40
30
20
10
0
1.0 k
Vout1
Figure 3. Ripple Rejection versus Frequency
= 1.0 VPP
Vref 0.33µF
R3
+ 150
C6
6
3
11 18
VCC1
NC 12
NC 4
17 13 8
NC
Vout2
10 k 100 k
f,FREQUENCY (Hz)
1.0 M
NC
10 9
14
16
15
7 5 12
NC
R4
86k
Vref nom
R5
10k
RSC
0.5
Q1
BD242SP
Vout1
+
10µF C4
MOTOROLA ANALOG IC DEVICE DATA
5

5 Page





TCA5600 arduino
TCA5600 TCF5600
Figure 17. Typical RESET Timing Diagram (not to scale)
VCC2
Vout1
(a)
VC5
RESET
VC5
WDI
(b)
RESET
VC5(N)
td
Overload
VCC2 < Vout1
twd
VC5(H)
VC5(L)
tr
(a) Watchdog inhibited, WDS = “1”
(b) Watchdog operational, WDS = “0”
D1
MR752
Vbat
R3
150
Figure 18. Typical Automative Application
Ignition
Key
Vout2
C1
220µF
Z1
MR2525L
+
300
µH
L1 R1
0.68
VD
100µF
C2
86k
0.22µF
C7
R5
10k
R4
+ 24V
C3 50mA
47
nF
VCC2
R2
0.5
10 9
12
7
8 14
16
INH
µP 2 11
C9
22nF
µP 6
INH
1
VCC1
3
C6
0.33µF
1
RESET
µP
DC/DC
Converter
Reference
2.5V
Delay
Circuit
A2
Thermal
Shut–Down
Watchdog
Current
Limit
TCA5600
Voltage
Protection
Q1*
A1 15
BD242SP
2 Vout1
5.0V/300mA
A1 150µF +
C4
17
IC 5
C5
100nF
18
WDS
4
WDI
C8
330pF
µP
5 13
Vref
Gnd
MOTOROLA ANALOG IC DEVICE DATA
11

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