Toshiba has launched of "TCB001HQ," a 4-channel power amplifier IC 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 March 2015.
The 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 also prevents loss of sound and noise generation in car audio.
The IC improves noise tolerance with a newly developed filter circuit, and minimizes the influence of cellular phone waves on the sound. In addition, reinforced protection circuits realize higher reliability.
Specifications Part Number TCB001HQ
Maximum Output Power 45W × 4ch (Vcc=15.2V, RL=4Ω, JEITA max)
Operating Supply Voltage Range 6V-18V
Output Offset Voltage 90mV
Output Noise Voltage 45µV (BW=DIN_AUDIO)
Embedded Functions and Features High output power and low distortion
Built-in mute and standby functions, offset detection, short circuit detection, and prevention of speaker damage.
6V operations (engine idling reduction capability）
A range of protection circuits (thermal, overvoltage, output to VCC, output to GND, output to output protections）
Sample Price (tax included) 400 yen