BD7836EFV Datasheet, PDF (1/17 Pages) Rohm – 1.9W+1.9W Stereo Speaker Amplifier

Class-AB Speaker Amplifiers
1.9W+1.9W
Stereo Speaker Amplifier
BD7836EFV
No.10077EAT07
●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
1) High power 1.9W typ. (VDD=5V, RL=4Ω, THD+N=1%, stereo input)
High power 1.2W typ. (VDD=5V, RL=8Ω, THD+N=1%, stereo input)
2) Gain selectable by the external control (6,10,15.6,21.6dB)
3) Pop noise suppression circuitry
4) Shutdown function (also Mute function) [I_sd=0.1µA(typ.)]
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
Power Dissipation
VDDmax
7.0
V
1 ^*1
W
Pd
3.2 ^*2
W
Storage Temperature
Tstg
Input Terminal Input Voltage Range ^*3
Vin
-55 ～ +150
℃
-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.
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2010.07 - Rev.A