TPS65166

更新时间： 2024-11-16 11:58:27

品牌	Logo	应用领域
德州仪器 - TI		电视
页数	文件大小	规格书
41页	3400K
描述
Compact LCD Bias Supply for TFT-LCD TV Panels

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TPS65166 数据手册

TPS65166

www.ti.com.......................................................................................................................................................................................... SLVS976–SEPTEMBER 2009

Compact LCD Bias Supply for TFT-LCD TV Panels

FEATURES

APPLICATIONS

•

LCD TV Panel with ASG Technology

•

8.5V to 14.7V Input Voltage Range

V_SOutput Voltage Range up to 19V

Boost Converter with 4.2A Switch Current

•

DESCRIPTION

The TPS65166 offers a compact power supply

solution to provide all voltages required by a LCD

panel for large TV panel applications running from a

12V supply rail. The device is optimized to support

LCD technology using ASG gate drive circuits.

Step Down Converter with 2.6A Switch Current

and Adjustable Output 2.5V to 3.3V

•

750kHz Fixed Switching Frequency

Temperature Compensated Negative Supply

High Voltage Stress Test (HVS)

Adjustable Sequencing

The device generates all voltage rails for the TFT

LCD bias (V_S, V_ONE, V_OFFE, V_SS). In addition to that it

includes a step-down converter (V_logic) to provide the

logic voltage. By pulling the HVS pin high an

implemented high voltage stress test feature

programs the boost converter output voltage V_sto

higher values. The boost converter operates at a

fixed switching frequency of 750kHz. The positive

charge pump is running from the boost converter and

is regulated by an external transistor. A buck-boost

converter provides an adjustable temperature

Gate Drive Signal for Isolation Switch

Short Circuit Protection

Internal Soft-Start

180° Phase Shift Between Buck and Boost

P2P Short/Open Certified

Optimized Dual Layer PCB Layout

Low EMI

dependent negative output voltage V_OFFE

negative output voltage V_SSis regulated by a shunt

regulator.

. The

Undervoltage Lockout

Thermal Shutdown

Available in 6×6mm 40 Pin QFN Package

Safety features like overvoltage protection of the

buck-boost input voltage, the boost and buck output

voltage, undervoltage lockout, short circuit protection

of V_ONE, V_OFFE, and V_logicare included as well as

thermal shutdown.

TYPICAL APPLICATION

Boost

Converter

With HVS

12V

15V / 2.9A

logic

Buck

Converter

3.3V / 2.4A

Positive

Charge

Pump

ONE

28V / 150mA

Inverting Buck Boost

With

Temperature

Compensation

OFFE

-22 to -11V / 200mA

Negative Shunt

Regulator

-7.5V / 100mA

Sequencing

And Logic

Power Good

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...41

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与TPS65166相关器件

型号	品牌	获取价格	描述	数据表
TPS65166RHAR	TI	获取价格	Compact LCD Bias Supply for TFT-LCD TV Panels
TPS65167	TI	获取价格	Compact LCD Bias Supply for TFT-LCD TV Panels
TPS65167_07	TI	获取价格	Compact LCD Bias Supply for TFT-LCD TV Panels
TPS65167A	TI	获取价格	Compact LCD Bias Supply for TFT-LCD TV Panels
TPS65167ARHAR	TI	获取价格	Compact LCD Bias Supply for TFT-LCD TV Panels
TPS65167ARHARG4	TI	获取价格	Compact LCD Bias Supply for TFT-LCD TV Panels
TPS65167RHAR	TI	获取价格	Compact LCD Bias Supply for TFT-LCD TV Panels
TPS65167RHARG4	TI	获取价格	Compact LCD Bias Supply for TFT-LCD TV Panels
TPS65167RHAT	TI	获取价格	Compact LCD Bias Supply for TFT-LCD TV Panels
TPS65167RHATG4	TI	获取价格	Compact LCD Bias Supply for TFT-LCD TV Panels

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