Toshiba Launches New Power Amplifier IC for Car Audio – Jun 27, 2013– Detroit, USA  (Techreleased) – Toshiba Corporation 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.

TB2941HQ
TB2941HQ

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.

TB2941HQ Specifications

Part Number TB2941HQ
Maximum Output Power 49W × 4ch (VCC=15.2V, RL=4Ω, JEITA max)
70W × 4ch (VCC=14.4V, RL=2Ω, JEITA max)
Operating Supply Voltage Range 6V – 18V
Total Harmonic Distortion 0.006% (POUT=4W)
Output Noise Voltage 55µV (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