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4ch power amp supports offset detection circuit up to 90mV

Posted: 02 May 2016     Print Version  Bookmark and Share

Keywords:Toshiba  power amplifier  speaker  offset voltage  hi-fi audio 

Toshiba Corp.'s Storage & Electronic Devices Solutions Co. has introduced a 4-channel power amplifier IC that can detect output offset voltage, which is a factor in speaker burnout. According to the company, the TCB501HQ incorporates a full-time offset detection circuit that supports up to 90mV.


Conventional offset detection during sound reproduction is difficult. The IC detects output DC offset voltage caused by leakage from the input capacitor and other sources, even during sound reproduction, and prevents speaker burnout, detailed the company.

The IC operates with a supply voltage range of 6V to 18V (4Ω) and 6V to 16V (2Ω) and integrates a current-feedback system of the type adopted in high-end hi-fi audio. This prevents sound quality degradation at wide bandwidths and offers consistent sound quality.

Available in HZIP25-P-1.00F package, mass production is scheduled to start in June 2016.

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