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

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.

Toshiba: "TB2909FNG", an audio power amplifier IC for electric vehicle warning sound systems in HEVs ...

Toshiba: "TB2909FNG", an audio power amplifier IC for electric vehicle warning sound systems in HEVs and EVs (Photo: Business Wire)

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 5Wx1ch(Vcc=16V,RL=8Ω, JEITA max)

3Wx1ch(Vcc=12V,RL=8Ω, JEITA max)

Operating Supply Voltage
Range

6V to 16V

Operating Temperature
Range

-40°C to 110°C

Total Harmonic Distortion 0.08% (Pout=0.125W)
Output Noise Voltage 50uV

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

Information in this document, including product prices and specifications, content of services and contact information, is current on the date of the announcement but is subject to change without prior notice.

About Toshiba

Toshiba is a world-leading diversified manufacturer, solutions provider and marketer of advanced electronic and electrical products and systems. Toshiba Group brings innovation and imagination to a wide range of businesses: digital products, including LCD TVs, notebook PCs, retail solutions and MFPs; electronic devices, including semiconductors, storage products and materials; industrial and social infrastructure systems, including power generation systems, smart community solutions, medical systems and escalators & elevators; and home appliances.

Toshiba was founded in 1875, and today operates a global network of more than 590 consolidated companies, with 206,000 employees worldwide and annual sales surpassing 5.8 trillion yen (US$61 billion). Visit Toshiba's web site at www.toshiba.co.jp/index.htm

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