70 W power amplifier circuit

FEATURES:

• Very high output power, operating from a single low supply voltage
• Low power dissipation, when used for music signals
• Switches to low output power at too high case temperatures
• Few external components
• Fixed gain
• Differential inputs with high common mode rejection
• Mode select pin (on, mute and standby)
• Status I/O pin (class-H, class-B and fast mute)
• All switching levels with hysteresis
• Diagnostic pin with information about:
• Dynamic Distortion Detector (DDD)
• Any short-circuit at outputs
• Open load detector
• Temperature protection.
• No switch-on or switch-off plops
• Fast mute on supply voltage drops
• Quick start option (e.g. car-telephony/navigation)
• Low (delta) offset voltage at the outputs
• Load dump protection
• Short-circuit safe to ground, supply voltage and across the load
• Low power dissipation in any short-circuit condition
• Protected against electrostatic discharge
• Thermally protected
• Flexible leads.

GENERAL DESCRIPTION:

The TDA1562Q is a monolithic integrated 70 W/4 Ω Bridge-Tied Load (BTL) class-H high efficiency power amplifier in a 17-lead DIL-bent-SIL plastic power package. The device can be used for car audio systems (e.g. car, radio and boosters) as well as mains fed applications (e.g.midi/mini audio combinations and TV sound).

Circuit Diagram:

Circuit diagram 70 W power amplifier circuit

Datasheet for TDA1562Q: Download