Product overview
Description
The STA540 is a 4-channel, class-AB audio amplifier designed for high quality sound applications.
The amplifiers have single-ended outputs with integrated short-circuit protection, thermal protection and diagnostic functions.
The chip is housed in the 15-pin Multiwatt ECOPACK®Pb-free package which is RoHS (2002/95/EC) compliant.
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All features
- High output power capability
- 2x 38 W into 4 Ω at 18 V, 1 kHz, 10% THD
- 2x 34 W into 8 Ω at 22 V, 1 kHz, 10% THD
- 2x 24W into 4Ω at 14.4 V, 1 kHz, 10% THD
- 2x 15 W into 8 Ω at 16 V, 1 kHz, 10% THD
- 4x 13 W into 2 Ω at 15 V, 1 kHz, 10% THD
- 4x 11 W into 4 Ω at 18 V, 1 kHz, 10% THD
- 4x 7 W into 4 Ω at 14.4 V, 1 kHz, 10% THD
- Minimum external components count:
- no bootstrap capacitors
- no Boucherot cells
- internally fixed gain 20 dB
- Standby function (CMOS compatible)
- No audible pop during standby operations
- Diagnostic facilities:
- clip detector
- output to GND short-circuit detector
- output to VS short-circuit detector
- soft short-circuit check at turn-on
- thermal shutdown warning
- Protection
- Output AC/DC short circuit
- Soft short-circuit check at turn-on
- Thermal cutoff/limiter to prevent chip from overheating
- High inductive loads
- ESD
- High output power capability
