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SYS-CON MEDIA Authors: Jayaram Krishnaswamy, Robin Kent, Pat Romanski, Jason Bloomberg, Lori MacVittie

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Toshiba Launches System Power Supply ICs for Medium-sized LCD Modules Used in Car Navigations

Toshiba Corporation (TOKYO:6502) today announced the launch of “TC7735FTG”, a system power supply IC for the medium-sized LCD modules that are mainly used in car navigation systems. Sample shipments start today.
LCD modules require maximum five different voltage power supplies to drive the controller and drivers. The IC integrates 2 channels of DC-DC converters, 2 channels of charge pumps, and one operational amplifier. This allows LCD modules to be driven with a single chip, reducing mounting area. The product also supports a wide operational voltage range from 4.5 to 16V, which enables direct power supply from car batteries and allows for use in car navigation systems.
The IC integrates an OTP memory1, allowing it to store different power control set-up data for each LCD modules.

Toshiba: "TC7735FTG", a system power supply IC for LCD used in car navigation systems (Photo: Busine ...

Toshiba: "TC7735FTG", a system power supply IC for LCD used in car navigation systems (Photo: Business Wire)

Key Features

  • Built-in 5 different power outputs.
  • Supports wide operating voltage range from 4.5 to 16V.
  • Adopts automatic buck-boost converter that identifies input voltage and selects operation mode (buck or boost), eliminating control by external command.
  • Built-in OTP for adjustable power control of each LCD.

Main Specifications

Part Number   TC7735FTG
Operating Voltage Range 4.5 to 16V
Output Voltage

CH1: Automatic Buck-Boost DC-DC converter

  5V to 15V
CH2: Buck DC-DC converter 3V to 5V
CH3: Positive charge pump 14V to 22V
CH4: Negative charge pump -5V to -15V
Operational amplifier for VCOM   0.5 to7.5V (Vout1-0.6V max)
* Vout1 is output voltage of CH1
Setting Built-in OTP write   Output voltage

Power sequence

Clock Switching frequency   1MHz: Built-in oscillator

400kHz to 1.2MHz: External clock input

Safety functions Detection functions   Input under voltage detection

Input over voltage detection

Thermal shutdown

Output over voltage detection

Package   QFN32pin(5mm × 5mm)
 

Note 1: One Time Programmable memory.

Customer Inquiries
Mixed Signal IC Sales and Marketing Department
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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