GENERAL DESCRIPTION
The IC incorporates the following functions:

1. 4 × 6 W SE amplifies without SE capacitor, because of the availability of 2 half supply voltage power buffers
2. 2 × 20 W BTL amplifiers
3. Automatic switching between 2 and 4 speaker operation. The mode of operation is determined during start-up.

This amplifier is protected for all general short-circuit conditions to battery or ground, overvoltage, 45 V load dump and short-circuits on the speaker outputs.

FEATURES
General
• Operating voltage from 8 to 18 V
• Low distortion
• Few external components, fixed gain
• Automatic mode selection (SE or BTL) depending on connected ‘rear’ loads
• Can be used as a stereo amplifier in Bridge-Tied Load (BTL) or quad Single-Ended (SE) amplifiers
• Single-ended mode without loudspeaker capacitor
• Soft clipping, to guarantee good clip behaviour with inductive loads
• Mute and standby mode with one-pin operation
• Diagnostic information for Dynamic Distortion Detector (DDD), high temperature (140 °C) mode of operation
and short-circuit
• No switch-on/off plops when switching between standby and mute and from mute to on
• Load detection on ‘rear’ channels when switching from standby to mute
• Fast mute on supply voltage drops (low VP mute).

Protection
• Short-circuit proof to ground, positive supply voltage on all pins and across load
• ESD protected on all pins
• Thermal protection against temperatures exceeding 150°C
• Load dump protection
• Overvoltage protection.