BH7824FVM_15 Datasheet, PDF (1/18 Pages) Rohm – 1.1W to1.5W Monaural Speaker Amplifiers

Audio Interface ICs for Digital Cameras and Camcorders
1.1W to1.5W
Monaural Speaker Amplifiers
BH7824FVM,BH7826FVM
No.15090EBT01
●Description
The BH7824FVM and BH7826FVM are speaker amplifier ICs for low-voltage drives and low power consumption audio,
specialized for mobile telephones and other mobile audio devices.
●Features
1) BTL monaural speaker amplifier
2) Capable of high power 500mW/8Ω/BTL output
3) Wide power supply voltage range
4) Supports active/shutdown modes
5) Built-in anti-pop circuit
6) Built-in thermal shutdown circuit
●Applications
Mobile telephones, PDAs, notebook computers, DSC, DVC, and other mobile audio devices.
●Product lineup
Part No.
Input type
Supply voltage(V)
BH7824FVM
Unbalanced input
2.4 ~ 5.5
BH7826FVM
Balanced input
2.6 ~ 5.5
●Absolute maximum ratings(Ta=25℃)
Parameter
Symbol
Limits
Unit
Supply voltage
V_CCmax.
6.0
V
Power dissipation
Pd
470(*1)
mW
Operating temperature
Topr
-30 ~ +85(*2)
℃
Storage temperature
Tstg
-55 ~ +125
℃
*1 Reduced by 4.7 mW/C at 25C or higher, when mounted on a 70mm×70mm×1.6mm PCB board.
*2 Topr=70℃ ~ 85℃ is the range for performing basic operations and does not guarantee characteristics or rated output.
Moreover, TSD (Thermal Shutdown) may become operable if input signals occurring in this range are excessive.
500
400
300
200
100
0
0
50
100
150
Temperature Ta[℃]
Fig.1 Ta-Pd (when mounted on a PCB board)
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2015.06 - Rev.B