Pin Definitions
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Pin Name
DO1.1
DO1.2
DI1.1
DI1.2
REB
REO
MUTE
GND1
DI5.1
DI2
DO2.1
DO2.2
GND2
DI5.2
DO5.1
DO5.2
DO3.1
DO3.2
DI3
LD CTL
VCC1
VCC2
VREF
DI4.1
DI4.2
DO4.1
DO4.2
GND3
KA9259D(KA9259HD)
I/O
Pin Function Description
O
Channel 1 output 1
O
Channel 1 output 2
I
Channel 1 input 1
I
Channel 1 input 2 (Adjustable)
O
External transistor base drive output
O
Regulator output
I
Mute signal input
-
Ground 1
I
Channel 5 input 1 (Loading Motor)
I
Channel 2 input
O
Channel 2 output 1
O
Channel 2 output 2
-
Ground 2
I
Channel 5 input 2 (Loading Motor)
O
Channel 5 output 1 (Loading Motor)
O
Channel 5 output 2 (Loading Motor)
O
Channel 3 output 1
O
Channel 3 output 2
I
Channel 3 input
I
Channel 5 (Loading Motor) speed control input
-
Power supply voltage 1
-
Power supply voltage 2
I
Bias voltage input
I
Channel 4 input 1 (Adjustable)
I
Channel 4 input 2
O
Channel 3 output 1
O
Channel 3 output 2
-
Ground 3
3