March 3, 2014
Integrated 5 Different Voltage Power Outputs Reduces Mounting Area
TOKYO 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.
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 (Vout1-0.6Vmax)
* 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
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March 3, 2014
