is a versatile Class-AB audio power amplifier IC primarily designed for automotive and high-fidelity home audio systems. It is known for its high output power and flexibility, allowing it to operate in various configurations such as dual-bridge (stereo) or quad single-ended modes.
Key Specifications
- Supply Voltage Range: Operates typically between 8V and 20V.
- Output Power:
- 2 x 38W into
at 18V (Bridge mode).
- 4 x 11W into
at 18V (Single-ended mode).
- 2 x 34W into
at 22V.
- 2 x 38W into
- Total Harmonic Distortion (THD): Approximately 0.02% to 0.3% depending on the configuration and power level.
- Fixed Gain: Features an internally fixed gain of 26dB in Bridge (BTL) mode and 20dB in Single-Ended mode.
- Protection Features: Includes built-in short-circuit protection (to ground and supply), thermal shutdown, and soft thermal limiting.
Features and Functional Highlights
- Configuration Flexibility: It can be configured for 2-channel stereo, 4-channel quad, or even a 2.1 setup (2 x 13W + 1 x 38W).
- Low Component Count: Designed to require minimal external components; for instance, it does not need bootstrap capacitors or Boucherot cells.
- Standby Function: Features a CMOS-compatible standby pin with “pop-free” operation to prevent audible noise when powering on/off.
- Diagnostic Facilities: Equipped with an on-board clip detector and fault diagnostics to simplify assembly and monitoring.
Common Applications
- Automotive Audio: Used in factory-fitted car stereos and rear deck amplifiers.
- Home Audio: Suitable for home theater systems, multimedia speakers, and DIY Hi-Fi projects.
- Portable Devices: Frequently integrated into portable speakers and boomboxes due to its efficiency and compact Multiwatt15 package.
- HIGH OUTPUT POWER CAPABILITY
- 2 x 38W/4Ω @18V, 1KHz, 10%
- MINIMUM EXTERNAL COMPONENTS COUNT:
- NO BOOTSTRAP CAPACITORS
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