Sharp XL-DK257N Service Manual page 85

IC851 VHIAN80T53/-1: MULTI REGULATOR (AN80T53)
Pin Terminal Name
No.
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
MODE1
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.
Out puts
Prc +
-
Drive
Reference
Voltage
2 3 4
REG3 VCC GND
13V
Figure 8-4 BLOCK DIAGRAM OF IC
Function
Prc + Prc
-
Drive Drive
1
REG4
5.1V
8 – 12
+ Prc
-
Drive
7 6
REG1 REG2
8.5V 10.0V
XL-DK257N