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2011.08 - Rev.B
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Class-AB Speaker Amplifiers
1.1W to1.5W
Monaural Speaker Amplifiers
BH7824FVM,BH7826FVM
●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.
BH7824FVM BH7826FVM
Input type
Unbalanced input Balanced input
Supply voltage(V) 2.4 ~ 5.5 2.6 ~ 5.5
●Absolute maximum ratings(Ta=25℃)
Parameter Symbol Limits Unit
Supply voltage V
CC
max. 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 25C 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.
Fig.1 Ta-Pd (when mounted on a PCB board)
No.11090EBT01
0
100
200
300
400
500
0 50 100 150
Temperature Ta[
℃
]
Power dissipation Pd[mW]
