Ic Data - Casio 130CR Service Manual

8. IC DATA

1. BA05CC0T (IC1)
Pin No. Pin name
1 Vcc
2 GND
3 OUT
2. S-80828CNY (IC2)
1
2
3
Bottom view
1 2 3
3. LB1268 (IC4)
TOP VIEW
IN1 1
IN2
2
IN3
3
GND 4
4. TD62083AP (IC5, 6)
O1 O2 O3
18 17 16
1 2
I1 I2
Description
Input Power Supply
GND
Output Power Supply
OUT
V
DD
V
SS
8 OUT1
OUT2
7
OUT3
6
5 VCC
6.8K
IN1
PIN DESCRIPTIONS
PIN 1~3: IN1~IN3 - Control signal input pin.
PIN 4:
PIN 5:
PIN 6~8: OUT1~3 - Each of the pins may individually sink load current from some controlled circuits.
O4 O5 O6 O7 O8 COMMON
15 14 13 12 11
3 4 5 6 7 8
I3 I4 I5 I6 I7 I8
Vref
OVP TSD
1 2
GND
Vcc
V 2
DD
-
+
VEFR
V
3
SS
OUT1
OUT2
240
D1
240
TR1 TR3
30K 30K
6.8K
TR2 TR4
2K 2K
IN2
GND - Power ground.
VCC - The output pin (Cathode) of freewheeling diode.
10
9
GND
— 21 —
Vcc
Driver
R2
R1
OCP
3
OUT
1
*
* Parasitic diode
OUT3
VCC
D3
D2 120
TR5
15K
3.4K
TR6
1K
GND
IN3
OUT