TPS65176

現行

適用電視的 LCD 偏壓 IC

產品詳細資料

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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類型 標題 日期
* Data sheet LCD Bias Integrated Circuit for TV datasheet 2012年 10月 16日
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. D) PDF | HTML 2022年 10月 28日
Application note Understanding Undervoltage Lockout in Power Devices (Rev. A) 2018年 9月 19日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Application note Generation of a VCOM buffer input using PWM signal 2015年 12月 21日
Application note Minimizing Ringing at the Switch Node of a Boost Converter 2006年 9月 15日

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