No.7817-6/8

LA6565

Pin No.

Pin Name

Pin Descriptions

1

FWD

Loading output direction switching (FWD). Loading system logic input.

2

REV

Loading output direction switching (REV). Loading system logic input.

3

Channels 3, 4, and loading power stage power supply

4

Loading output (–)

5

Loading output (+)

6

Channel 4 output (+)

7

VO4–

Channel 4 output (–)

8

Channel 3 output (+)

9

Channel 3 output (–)

10

VO2+

Channel 2 output (+)

11

Channel 2 output (–)

12

Channel 1 output (–)

13

Channel 1 output (+)

14

VCCP1

Channels 1 and 2 power stage power supply

15

VCCS

Signal system power supply

16

Channel 1 input. Input operational amplifier + input.

17

Channel 1 input. Input operational amplifier – input.

18

VIN1

Channel 1 input. Input operational amplifier output.

19

Channel 2 input. Input operational amplifier + input.

20

Channel 2 input. Input operational amplifier – input.

21

VIN2

Channel 2 input. Input operational amplifier output.

22

VIN3–

Channel 3 input. Input operational amplifier – input.

23

VIN3

Channel 3 input. Input operational amplifier output.

24

VO_OP

Operational amplifier output

25

VIN-OP

Operational amplifier – input

26

VIN+OP

Operational amplifier + input

27

REG_IN

Regulator error amplifier output. Connect this pin to the base of the external pnp transistor.

28

REG_OUT

Regulator error amplifier input (+).

29

VREF_OUT

VREF amplifier (voltage follower) output.

30

VREF_IN

VREF input. Apply the external reference voltage to this pin.

31

VIN4

Channel 4 input. Input operational amplifier output.

32

Channel 4 input. Input operational amplifier – input.

33

MUTE234

Controls the on/off state of channels 2, 3, and 4.

34

MUTE1

Channel 1 output on/off control

35

VCONT

Loading block output high-level voltage setting

36

S_GND

Signal system ground

Pin Functions