深圳市科瑞芯电子有限公司

GMT（致新） G2532KE1U-K TQFN8X8-68 液晶电视用多路电源IC

General Description
The G2532 is a programmable multi-functional power
solution with integrated gamma buffers, VCOM buffer
and level shift for TFT-LCD. It contains one boost converter/
controller (AVDD), one ISO MOSFET controller
for AVDD power on sequence, one buck converter
(VBK1), one boost converter/ positive charge pump
regulator (VGH) with the temperature compensation,
one inverting converter/ negative charge pump regulator
(VGL2) with the temperature compensation, one negative
regulators (VSS1/2), 14-CH gamma buffers, 1-CH
VCOM buffer and 16-CH Level shifters. All channel
output level and sequence can be programmable by I2C
interface and integrated Multiple-Time Programmable
(MTP) non-volatile memory.
With its high current capabilities, the G2532 is ideal for
large screen LCD TV panel application with widely supply
voltage range and also integrated complete protection
functions including, OVP, UVP, OCP and OTP. The
G2532 available in a TQFN8x8-68 pin package.

Features
8.6V to 14.7 V Input Voltage Range
AVDD Async-Boost Converter: 13.5…19.8V
500/ 750kHz Switching Frequency
5A Switching Current Limit
Controller by 0.3V Over-Current Protection.
External VAVDD Isolation Switch Control
VBK1 Async Buck Converter: 1.8…3.35V
500/750kHz Switching Frequency
3A Switching Current Limit
HAVDD OP
1 Channels Programmable HAVDD OP
±200mA Short Circuit Current
7-bits DAC resolution
VGH Async-Boost Converter/ Charge –Pump
Regulator: 20…45V
500/ 750kHz Switching Frequency
1.5A Switching Current Limit
Temperature Compensation: 20V…45V
VGL Async-Inverting Converter/ Charge Pump
Regulator: -3...-18V
500/ 750kHz Switching Frequency
1.5A Async Inverting Switching Current Limit
Temperature Compensation: -3V…-18V
VSS1 Negative Regulators: -3V to -16V
14-CH Gamma Buffers
14 Channels Rail-to-Rail Programmable Gamma
Buffers
10 Bits Resolution for reach Channel
1-CH VCOM Buffer
1 Channels Rail-to-Rail Programmable VCOM
Buffer
7 Bits Resolution for reach Channel
16-CH Level Shifts
10 Channels CLK1~10_O
2 Channels STV1/2_O
2 Channels LC1/2_O
2 Channel DISCHG1/2
Integrated MTP Non-Volatile Memory
Programmable Sequence Timing
Over-Temperature Protection
I2C Compatible Interface for Register Control
Available in 8mmX8mm 68-pin TQFN Package

Applications
TFT LCD Monitor Panel
TFT LCD TV Pane

应用原理图：