Wednesday, August 27, 2014
4 x 50 W MOSFET quad bridge power amplifier
Features
- High output power capability:
- 4 x 50 W/4 max.
- 4 x 30 W/4 @ 14.4 V, 1 kHz, 10 %
- 4 x 80 W/2 max.
- 4 x 55 W/2 @ 14.4V, 1 kHz, 10 %
- MOSFET output power stage
- Excellent 2 driving capability
- Hi-Fi class distortion
- Low output noise
- ST-BY function
- Mute function
- Automute at min. supply voltage detection
- Low external component count:
- Internally fixed gain (26 dB)
- No external compensation
- No bootstrap capacitors
- On board 0.35 A high side driver
- Output short circuit to gnd, to Vs, across the load
- Very inductive loads
- Overrating chip temperature with soft thermal limiter
- Output DC offset detection
- Load dump voltage
- Fortuitous open gnd
- Reversed battery
Circuit Diagram
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| 4 x 50 W MOSFET quad bridge power amplifier |
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