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Current-Feedback 4-channel Automotive Audio Power Amplifier IC with Built-In Full-Time Offset Detection: TCB501HQ

TCB501HQ image

"TCB501HQ" integrates a newly developed, full-time offset detection circuit.

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

  • Maximum Output Power:
    49W × 4ch (VCC=15.2V, RL=4Ω, MAXPOWER)
  • Output Noise Voltage: 45µVrms (BW=DIN AUDIO)
  • Operating Supply Voltage Range:
    6 to 18 V (4Ω), 6 to 16V (2Ω)
  • Package: HZIP25-P-1.00F

Embedded Functions and Features

  • High output power and low distortion
  • Built in mute and standby functions, offset detection, and high side switch driver
  • 6V operations (Engine idling reduction capability)
  • Variety of protection circuits (thermal, overvoltage, shorted to VCC, shorted to GND and shorted load)

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