- 10 -
IC BLOCK DIAGRAM & DESCRIPTION
IC132 LB1641L (Bidirectional Motor Driver)
1
PRE-
DRIVE
INPUT LOGIC CIRCUIT
5
4
6
10
9
7
2
8
3
GND
IN1
OUT1P1 VCC2 OUT2 P2
VZ
VCC
IN2
Input Output Action
Brake
Normal(Reverse)
Rotary
Reverse(Normal)
Rotary
Brake
IN1
0
1
0
1
IN2
0
0
1
1
OUT1
0
1
0
0
OUT2
0
0
1
0
28 27 26 25 24 23 22 21 20 19 18 17 16 15
1234567 891011121314
Vcc
Vcc
DRIVER MUTE
D.BUFD.BUFD.BUFD.BUF
D.BUFD.BUFD.BUFD.BUF
Level shift
Level shift
Level shift
Level shift
T. S. D
IC103 MM1469XH (CD Driver)
Pin No. Symbol Description Pin No. Symbol Description
1 ch1 OUT-A Driver ch1 negative output 15 OP IN(-) Operational amplifier input, negative
2 ch1 OUT-B Driver ch1 positive output 16 OP IN(+) Operational amplifier input, positive
3 ch1 IN-A Driver ch1 input 17 ch3 OUT-A Driver ch3 negative output
4 ch1 IN-B Driver ch1 input gain adjustment pin 18 ch3 OUT-B Driver ch3 positive output
5 Tr-B Connect to external transistor base 19 ch3 IN-A Driver ch3 input
6
V
REG
-OUT
Constant voltage output connects
to external transistor collector
20 ch3 IN-B Driver ch3 input gain adjustment pin
7 MUTE Driver mute control 21 Vee1
8 GND1 Ground 1 22 Vee2
9 ch2 IN-B Driver ch2 intput gain adjustment pin 23 BIAS-IN Bias amplifier input
10 ch2 IN-A Driver ch2 intput 24 ch4 IN-B Driver ch4 input gain adjustment pin
11 ch2 OUT-B Driver ch2 positive output 25 ch4 IN-A Driver ch4 input
12 ch2 OUT-A Driver ch2 negative output 26 ch4 OUT-B Driver ch4 positive output
13 GND2 Substrate ground 27 ch4 OUT-A Driver ch4 negative output
14 OP OUT Operational amplifier output 28 GND3 Substrate ground
To Next Page
Loading...
