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www.rohm.com

2010.07 - Rev.A

© 2010 ROHM Co., Ltd. All rights reserved.

Class-AB Speaker Amplifiers

1.9W+1.9W

Stereo Speaker Amplifier

BD7836EFV

●

Description

BD7836EFV is a Class-AB stereo speaker amplifier, developed for note-book PC, desktop PC, portable devices and others.

Class-AB amplifier has no EMI noise. Power package HTSSOP-B20 can realize high output power.

Low circuit current at active mode reduce consumption of battery. Shutdown current is 0.1µA typically, and pop noise level

when shutdown turns on and off is very small. This device is suitable for the application that often changes mode between

“shutdown state” and “active state”.

●

Features

2) Gain selectable by the external control (6,10,15.6,21.6dB)

3) Pop noise suppression circuitry

5) Protection circuitry (Thermal shutdown, Under voltage lockout)

6) Power Package with thermal pad HTSSOP-B20

●

Applications

Note-book PC, Desktop PC, etc.

●

Absolute maximum ratings (Ta=+25℃)

Parameter

Symbol

Ratings

Unit

Power Supply Voltage

VDDmax

7.0

V

Power Dissipation

Pd

1

*1

W

3.2

*2

W

Storage Temperature

Tstg

-55 ～ +150

℃

Input Terminal Input Voltage Range

*3

Vin

-0.3～VDD+0.3

V

Control Terminal Input Voltage Range

*4

Vctl

-0.3～VDD+0.3

V

*1 70mm×70mm×1.6mm FR4 1-layer glass epoxy board(Copper on top layer 0%)

Derating in done at 8mW/℃ for operating above Ta=25℃. There are thermal via on the board.

*2 70mm×70mm×1.6mm FR4 4-layer glass epoxy board (Copper on bottom 2 and 3 layer 100%)

Derating in done at 25.6mW/℃ for operating above Ta=25℃. There are thermal via on the board.

*3 Input Terminal (LIN+, LIN-, RIN+, RIN-)

*4 Control Terminal ( SHUTDOWN

, GAIN0, GAIN1)

●

Operating conditions

Parameter

Symbol

Range

Unit

Power Supply Voltage

VDD

+4.5 ～ +5.5

V

Temperature

Topr

-40 ～ +85

℃

*

These products aren’t designed for protection against radioactive rays.

No.10077EAT07