Toshiba Launches New Power Amplifier IC for Car Audio

Reduces sound cuts and noise of car audio at engine idle reduction

TOKYO — (BUSINESS WIRE) — June 27, 2013Toshiba Corporation (TOKYO:6502) today announced that it has launched a 4 channel power amplifier IC, "TB2941HQ", that improves noise tolerance in audio systems in cars with engine idling reduction systems. Samples are available now with mass production scheduled to start in July 2013.
Engines of cars with idling reduction systems often cut out, causing battery voltage to drop. By reducing the minimum operation voltage from 8V to 6V, the new power amplifier realizes stable operation and makes it possible to prevent the loss of sound and noise in car audio.
This IC improves noise tolerance with a newly developed filter circuit, and minimizes the influence of cellular phone waves on the sound. Reinforced protection circuits realize high reliability.

Toshiba 4 channel power amplifier IC for car audio, "TB2941HQ" (Photo: Business Wire)

Toshiba 4 channel power amplifier IC for car audio, "TB2941HQ" (Photo: Business Wire)



Part Number   TB2941HQ
Maximum Output Power

49W x 4ch (VCC=15.2V, RL=4Ω, JEITA max)
70W x 4ch (VCC=14.4V, RL=2Ω, JEITA max)

Operating Supply Voltage Range

Total Harmonic Distortion 0.006% (POUT=4W)
Output Noise Voltage 55uV (BW=DIN_AUDIO)
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, output to VCC, output to GND, output to output protections, cross misconnection, VCC shorted to output when set-GND is opened, GND shorted to output when set-VCC is opened)
Package HZIP25-P-1.00F
Sample Price (Tax included)   500 Yen

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