JVC TH-A5 Service Manual page 32

TH-A5
FAN8082 (U10) : DC motor driver
1.Pin layout
GND 1
V 2
O1
V 3
CTL
V 4
IN1
3. Pin function
Pin No.
1
2
3
4
5
6
7
8
KA78R05 (PQ2,PQ6)/ KA78R08 (PQ5)/ KA278R05 (PQ1)/ KA278R33 (PQ4) : Regulator
1. Block diagram
Vin 1
HIGH / LOW
4
Vdis
1.4V
1-32
8 V
O2
7 PV
CC
5 SV
CC
6 V
IN2
Symbol I/O
-
GND
Ground
V O Output 1
O1
V I Motor speed control
CTL
V I Input 1
IN1
V I Input 2
IN2
SV - Supply voltage (Signal)
CC
PV - Supply voltage (Power)
CC
V O Output 2
O2
THERMAL SHUTDOWN
BANDGAP REFERENCE
OUTPUT
ON / OFF
-
+
2. Block diagram
1
GND
V
O1
2
V
CTL
3
V
IN1
4
Function
Q1
OVERVOLTAGE
PROTECTION
-
+
SOA PROTECTION
SHORT-CIRCUIT
SHORTCIRCUIT
PROTECTION
3
GND
DRIVER OUT
8
7
PRE DRIVER
6
BIAS
TSD
LOGIC SWITCH
5
2 Vo
R1
R2
V
O2
PV
CC
SV
CC
V
IN2