Sharp CD-DK890N Service Manual page 68

IC851 VHIAN80T53/-1: Multi Regulator (AN80T53)
Pin No. Terminal Name
1 REG4 Output
2 REG3 Output
3 VCC
4 GND
5 MODE 1
6 REG2 Output
7 REG1 Output
Peak Current Protection,
Thermal Protection,
Load Short Protection.
5
MODE 1
5.1 V power supply with a minimum peak out current of 1200 mA.
13 V power supply with a minimum peak out current of 1350 mA.
Connected to Power supplies.
Connected to the IC substrate.
REG1, REG2,REG3 and REG4 outputs are turned ON when this pin is 5 V.
10 V power supply with a minimum peak out current of 800 mA.
8.5 V power supply with a minimum peak out current of 700 mA.
Outputs
Prc Prc
Drive Drive
Reference
Voltage
2
3 4
REG 3 VCC GND
13V
Figure 8-4: BLOCK DIAGRAM OF IC
Function
Prc
Drive
1 7
REG4 REG1
5.1V 8.5V
8 – 7
CD-DK890N
Prc
Drive
6
REG2
10.0V