Toshiba Launches Audio Power Amplifier ICs for Electric Vehicle Warning Sound System

February 18, 2014

TOKYO Toshiba Corporation (TOKYO: 6502) today announced the launch of TB2909FNG , an audio power amplifier IC that supports external audible outputs from vehicles, allowing use of electric vehicle warning sound systems in hybrid electric vehicles (HEVs) and electric vehicles (EVs). Mass production shipments will start today.

HEVs and EVs operating in all-electric mode without combustion engine run quietly, and they increasingly are being equipped with electric vehicle warning sound systems that simulate engine sound, so that pedestrians can recognize their approaching. The TB2909FNG guarantees operation at up to 110 C, allowing use in electric vehicle warning sound system where stable operation at high temperature is required. The IC also integrates a wide range of abnormality detection functions and protection circuits, contributing to the safety and simplification of automotive systems.

Key Features of New Product

Operating temperature range: Ta=-40 C to 110 C

Variety of abnormality detection functions: Speaker open, Output shorted to GND or VCC, Detection of high temperature, Detection of overload

Variety of protection circuits: Thermal Shut Down, Over-voltage, Output to VCC, Output to GND, Shorted load

Small sized package: TSSOP16

Main Specifications Part Number TB2909FNG

Maximum Output Power 5W 1ch(Vcc=16V,RL=8 , JEITA max)

3W 1ch(Vcc=12V,RL=8 , JEITA max)

Operating Supply Voltage 6V to 16V

Operating Temperature Range -40 C to 110 C

Total Harmonic Distortion 0.08%(Pout=0.125W)

Output Noise Voltage 55 V

Embedded Functions and Features Built in mute, standby functions

Variety of abnormality detection functions (Speaker open, Output short-circuits to GND or VCC, Thermal, and Overload)

Variety of protection circuits (Thermal Shut Down, Over-voltage, Output shorted to VCC, Output shorted to GND , and Shorted load)

Package TSSOP16

Customer Inquiries

Mixed Signal Controller Group

Tel: +81-44-548-2821

LINK:	http://www.semicon.toshiba.co.jp/eng/profile/news/newsrelease/assp/top...
	See more stories from toshiba

Most recent headlines