Car Audio Current-Feedback Power Amplifier IC with Built-In Full-Time Offset Detection by Toshiba

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Toshiba Corporation‘s Storage & Electronic Devices Solutions Company on January 25, 2017, announced the launch of “TCB502HQ,” a 4-channel power amplifier IC that detects output offset voltage, a factor in speaker burnout. Mass production starts today.

The new IC integrates a newly developed, full-time offset detection circuit that detects output offset voltage even during sound reproduction, preventing speaker burnout.

Manufacturers constantly seek to respond to consumer demand by refining the sound quality of car audio and the new IC supports this with integration of a current-feedback system like that found in high-end hi-fi audio. This prevents sound quality degradation at wide bandwidths and secures consistent sound quality.

Main Specifications

Part Number TCB502HQ
Maximum Output Power 49Wx4ch (Vcc=15.2V,RL=4Ω, JEITA max)
Operating Supply Voltage 6V to 18V
Output Offset Voltage 70mV
Output Noise Voltage 33uV (BW=A-weight)
Embedded Functions and Features ·         High output and low distortion

·         Built-in mute and standby functions, offset detection, short circuit detection, and half short circuit detection

·         6V operation (engine idling reduction capability)

·         A range of protection circuits (thermal, overvoltage, output to VCC, output to GND, output to output protections)

Package HZIP25-P-1.00F
Sample Price (with tax) 500 yen

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