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

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

Integrated 5 Different Voltage Power Outputs Reduces Mounting Area

Business Wire

TOKYO -- March 2, 2014

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 memory^1, 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   4.5 to 16V
Range
                    CH1: Automatic Buck-Boost       5V to 15V
                    DC-DC converter
                    CH2: Buck DC-DC converter        3V to 5V
                    CH3: Positive charge pump        14V to 22V
Output Voltage      CH4: Negative charge pump        -5V to -15V
                                                     0.5 to7.5V (Vout1-0.6V
                    Operational amplifier for VCOM  max)
                                                     * Vout1 is output voltage
                                                     of CH1
                                                     Output voltage
Setting             Built-in OTP write             
                                                     Power sequence
                                                     1MHz: Built-in oscillator
Clock               Switching frequency            
                                                     400kHz to 1.2MHz:
                                                     External clock input
                                                     Input under voltage
                                                     detection

                                                     Input over voltage
Safety functions    Detection functions             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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Contact:

Media Inquiries:
Toshiba Corporation
Semiconductor & Storage Products Company
Takashi Mochizuki, +81-3-3457-4963
semicon-NR-mailbox@ml.toshiba.co.jp
 
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