TPS65176

ACTIVE

LCD Bias IC for TV

Product details

Display type LCD unipolar IC integration LCD bias Vin (min) (V) 9.5 Vin (max) (V) 14 Applications 13 to 21 inches, 21 inches and above Source driver voltage (min) (V) 13.7 Source driver voltage (max) (V) 18.5 Level shifter/scan driver (Ch) 0 Features Reset generator Topology Boost, Buck Rating Catalog Operating temperature range (°C) -40 to 85
Display type LCD unipolar IC integration LCD bias Vin (min) (V) 9.5 Vin (max) (V) 14 Applications 13 to 21 inches, 21 inches and above Source driver voltage (min) (V) 13.7 Source driver voltage (max) (V) 18.5 Level shifter/scan driver (Ch) 0 Features Reset generator Topology Boost, Buck Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RHD) 28 25 mm² 5 x 5
  • 9.5V to 14V Input Voltage Range
  • Up to 18.5V Boost Converter with 3.5-A Switch Current
  • 500kHz to 2 MHz Adjustable Switching Frequency for Boost Converter
  • 2.5-A Buck Converter Switch Current Limit
  • Fixed 750kHz Switching Frequency for Buck Converter
  • Two Charge Pump Controllers for VGON and VGOFF
  • Adjustable Power-on Sequence
  • Gate Driver Signal for Isolation Switch
  • Internal Soft-Start
  • Undervoltage Lockout
  • Over Voltage Protection
  • Short Circuit Protection
  • Thermal Shutdown
  • 9.5V to 14V Input Voltage Range
  • Up to 18.5V Boost Converter with 3.5-A Switch Current
  • 500kHz to 2 MHz Adjustable Switching Frequency for Boost Converter
  • 2.5-A Buck Converter Switch Current Limit
  • Fixed 750kHz Switching Frequency for Buck Converter
  • Two Charge Pump Controllers for VGON and VGOFF
  • Adjustable Power-on Sequence
  • Gate Driver Signal for Isolation Switch
  • Internal Soft-Start
  • Undervoltage Lockout
  • Over Voltage Protection
  • Short Circuit Protection
  • Thermal Shutdown

The TPS65176 provides a simple and economic power supply solution for a wide variety of LCD bias applications. A buck converter generates a logic supply for the timing controller (T-CON) while a boost converter generates the AVDD voltage to power the Source Driver ICs. Two regulated charge pump controllers generate VGON and VGOFF with very few external components to turn on and off the display transistors. The sequencing of the supplies at power on is fully controllable by the user. The TPS65176 also includes various protection mechanisms to ensure the safe operation of the LCD panels.

The TPS65176 provides a simple and economic power supply solution for a wide variety of LCD bias applications. A buck converter generates a logic supply for the timing controller (T-CON) while a boost converter generates the AVDD voltage to power the Source Driver ICs. Two regulated charge pump controllers generate VGON and VGOFF with very few external components to turn on and off the display transistors. The sequencing of the supplies at power on is fully controllable by the user. The TPS65176 also includes various protection mechanisms to ensure the safe operation of the LCD panels.

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Type Title Date
* Data sheet LCD Bias Integrated Circuit for TV datasheet 16 Oct 2012
Application note 스트컨버터의 전력계 기본 계산 (Rev. D) PDF | HTML 21 Nov 2022
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. D) PDF | HTML 28 Oct 2022
Application note Understanding Undervoltage Lockout in Power Devices (Rev. A) 19 Sep 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note Generation of a VCOM buffer input using PWM signal 21 Dec 2015
Application note Minimizing Ringing at the Switch Node of a Boost Converter 15 Sep 2006

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