Power Amplifier

LA47510

Overview

The LA47510 is a four-channel BTL power amplifier IC designed for use in car stereo systems.

Functions

Maximum output: 50 W 4 (VCC = 14.4 V, RL = 4)

Offset detection function

Offset detection function off switch

Muting function

Standby switch

Built-in each protection circuit

Output pin-to-Vcc short

Output pin-to-GND short

Load short

Overvoltage

Thermal shutdown

Package: HZIP25

Block Diagram

 

 

 

 

 

 

 

+

 

 

 

 

 

VCC1/2

VCC3/4 2200F

0.022F

 

 

 

6

20

 

 

 

 

IN 1

+

11

 

+

+

9

OUT1+

 

0.22F

Offset

 

OUT1-

 

+5V 10k

 

-

-

7

 

25

Detect

 

 

OFFSET DET

Circuit

Protective

 

PWR GND1

 

 

 

8

 

 

 

 

 

 

 

 

 

circuit

 

 

 

 

 

 

 

 

-

+

5

OUT2+

 

 

 

 

 

 

 

IN 2

+

12

 

+

-

3

OUT2-

 

0.22F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Aux

 

2

PWR GND2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ST BY

 

4

Stand by

circuit

 

 

 

 

Switch

 

 

 

 

 

 

+5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ST ON

 

Ripple

Mute

 

Mute 10k

 

R.F

+

10

22

 

Filter

circuit

+

 

 

47F

 

 

 

 

3.3F

 

 

 

 

 

 

 

 

 

 

 

 

 

+

 

Low Level

IN 3

+

15

 

+

17

OUT3+ Mute ON

0.22F

 

 

OUT3-

 

OFFSET DET

 

 

-

-

19

 

OFF S.W

1

 

 

 

 

GND

 

 

 

 

PWR GND3

 

 

 

 

Protective

8

 

OFFSET DET

 

 

 

 

 

OFF

13

 

circuit

 

 

 

 

PRE GND

 

-

+

21

OUT4+

 

 

 

 

 

 

IN 4

+

14

 

+

-

23

OUT4-

 

 

0.22F

 

 

 

 

 

 

 

ON TIME C +

16

Muting &

 

 

 

PWR GND4

 

ON Time Control

 

 

24

 

 

22F

 

Circuit

 

 

 

 

 

Power Amplifierplifier

LA4753636

Overview

The LA47536 is a four-channel BTL power amplifier IC designed for use in car stereo systems.

Functions

Maximum output: 45 W 4 (VCC = 14.4 V, RL = 4)

Offset detection function

Offset detection function off switch

Muting function

Standby switch

Built-in each protection circuit

Output pin-to-Vcc short

Output pin-to-GND short

Load short

Overvoltage

Thermal shutdown

Package: HZIP25

Block Diagram

 

 

 

 

 

 

 

+

 

 

 

 

 

VCC1/2

VCC3/4 2200F

0.022F

 

 

 

6

20

 

 

 

 

IN 1

+

11

 

+

+

9

OUT1+

 

0.22F

Offset

 

OUT1-

 

+5V 10k

 

-

-

7

 

25

Detect

 

 

OFFSET DET

Circuit

Protective

 

PWR GND1

 

 

 

8

 

 

 

 

 

 

 

 

 

circuit

 

 

 

 

 

 

 

 

-

+

5

OUT2+

 

 

 

 

 

 

 

IN 2

+

12

 

+

-

3

OUT2-

 

0.22F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Aux

 

2

PWR GND2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ST BY

 

4

Stand by

circuit

 

 

 

 

Switch

 

 

 

 

 

 

+5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ST ON

 

Ripple

Mute

 

Mute 10k

 

R.F

+

10

22

 

Filter

circuit

+

 

 

47F

 

 

 

 

3.3F

 

 

 

 

 

 

 

 

 

 

 

 

 

+

 

Low Level

IN 3

+

15

 

+

17

OUT3+ Mute ON

0.22F

 

 

OUT3-

 

OFFSET DET

 

 

-

-

19

 

OFF S.W

1

 

 

 

 

GND

 

 

 

 

PWR GND3

 

 

 

 

Protective

8

 

OFFSET DET

 

 

 

 

 

OFF

13

 

circuit

 

 

 

 

PRE GND

 

-

+

21

OUT4+

 

 

 

 

 

 

IN 4

+

14

 

+

-

23

OUT4-

 

 

0.22F

 

 

 

 

 

 

 

ON TIME C +

16

Muting &

 

 

 

PWR GND4

 

ON Time Control

 

 

24

 

 

22F

 

Circuit

 

 

 

 

 

 

47 Car Audio

48 Car Audio

 

 

 

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Image 26
Sanyo EP93F manual LA47510, LA4753636