TDA1562Q

70瓦高效率功率放大器诊断设备 70 W high efficiency power amplifier with diagnostic facility

GENERAL DESCRIPTION

The TDA1562 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 radios and boosters as well as mains fed applications e.g. midi/mini audio combinations and TV sound.

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.