Lm4651 & Lm4652 Overture?⠁udio Power Amplifier 170w Class D Audio Power Amplifier Solution - National SemiconductorThe IC combination of the LM4651 driver and the LM4652 Power MOSFET provides a high efficiency, Class D sub-
woofer Amplifier solution.
The LM4651 is a fully integrated conventional pulse width
Modulator driver IC. The IC contains short circuit, under
voltage, over modulation, and thermal shut down protection
circuitry. It contains a standby function, which shuts down
the pulse width modulation and minimizes supply current.
The LM4652 is a fully integrated H-bridge Power MOSFET
IC in a TO-220 power package. Together, these two ICs
form a simple, compact high power Audio Amplifier solution
complete with protection normally seen only in Class AB
Amplifiers Few external components and minimal traces
between the ICs keep the PCB area small and aids in EMI
control.
The near Rail-to-Rail switching Amplifier substantially in-
creases the efficiency compared to Class AB Amplifiers This
high efficiency solution significantly reduces the heat sink
size compared to a Class AB IC of the same power level.
This two-chip solution is optimum for powered subwoofers
and self powered speakers. By National Semiconductor Corporation
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LM4651 Pb-Free | LM4651 Cross Reference | LM4651 Schematic | LM4651 Distributor |
LM4651 Application Notes | LM4651 RoHS | LM4651 Circuits | LM4651 footprint |