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TPS65642

現行

適用筆記型個人電腦和平板電腦且具整合式 Gamma 參考的 LCD 偏壓

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產品規格表

TPS65642

現行
產品規格表 立即訂購

產品詳細資料

Display type LCD unipolar IC integration Gamma buffer, LCD bias, VCOM Vin (min) (V) 2.6 Vin (max) (V) 6 Applications 13 to 21 inches, 7 to 13 inches Source driver voltage (min) (V) 6 Source driver voltage (max) (V) 9.1 Level shifter/scan driver (Ch) 0 Features Adjustable sequencing, GPM or GVS, Gamma buffer, I2C interface, Output discharge, Reset generator, Temperature sensor or compensation, VCOM or op amp Topology Boost, Buck Rating Catalog Operating temperature range (°C) -40 to 85
Display type LCD unipolar IC integration Gamma buffer, LCD bias, VCOM Vin (min) (V) 2.6 Vin (max) (V) 6 Applications 13 to 21 inches, 7 to 13 inches Source driver voltage (min) (V) 6 Source driver voltage (max) (V) 9.1 Level shifter/scan driver (Ch) 0 Features Adjustable sequencing, GPM or GVS, Gamma buffer, I2C interface, Output discharge, Reset generator, Temperature sensor or compensation, VCOM or op amp Topology Boost, Buck Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YFF) 56 10.7999999999999988 mm² (— mm × — mm)
  • 2.6 V to 6 V Input Voltage Range
  • Synchronous Boost Converter (AVDD)
  • Non-Synchronous Boost Converter with Temperature
    Compensation (VGH)
  • Synchronous Buck Converter (VCORE)
  • Synchronous Buck Converter (VIO1)
  • Low Dropout Linear Regulator (VIO2)
  • Programmable VCOM Calibrator with
    Two Integrated Buffer Amplifiers
  • Gate Voltage Shaping
  • Panel Discharge Signal (XAO)
  • System Reset Signal (RST)
  • 14-Channel, 10-Bit Programmable Gamma Voltage Correction
  • On-Chip EEPROM with Write Protect
  • I2C™ Interface
  • Thermal Shutdown
  • Supports GIP and Non-GIP Displays
  • 56-Ball, 3.16 mm × 3.45 mm 0.4 mm Pitch DSBGA
  • 2.6 V to 6 V Input Voltage Range
  • Synchronous Boost Converter (AVDD)
  • Non-Synchronous Boost Converter with Temperature
    Compensation (VGH)
  • Synchronous Buck Converter (VCORE)
  • Synchronous Buck Converter (VIO1)
  • Low Dropout Linear Regulator (VIO2)
  • Programmable VCOM Calibrator with
    Two Integrated Buffer Amplifiers
  • Gate Voltage Shaping
  • Panel Discharge Signal (XAO)
  • System Reset Signal (RST)
  • 14-Channel, 10-Bit Programmable Gamma Voltage Correction
  • On-Chip EEPROM with Write Protect
  • I2C™ Interface
  • Thermal Shutdown
  • Supports GIP and Non-GIP Displays
  • 56-Ball, 3.16 mm × 3.45 mm 0.4 mm Pitch DSBGA

The TPS65642 is a compact LCD bias solution primarily intended for use in Notebook and Tablet PCs. The device comprises two boost converters to supply the LCD panel’s source driver and gate driver/level shifter; two buck converters and an LDO linear regulator to supply the system’s logic voltages; a programmable VCOM generator with two high-speed amplifiers; 14-channel gamma voltage correction; and a gate voltage shaping function.

The TPS65642 is a compact LCD bias solution primarily intended for use in Notebook and Tablet PCs. The device comprises two boost converters to supply the LCD panel’s source driver and gate driver/level shifter; two buck converters and an LDO linear regulator to supply the system’s logic voltages; a programmable VCOM generator with two high-speed amplifiers; 14-channel gamma voltage correction; and a gate voltage shaping function.
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open-in-new 比較替代產品
功能相似於所比較的產品。
TPS65640 現行 筆記型電腦和平板電腦的 LCD 偏壓數位 VCOM 緩衝器 This product has no integrated gamma buffer, and has two OpAmps.
TPS65642A 現行 適用筆記型個人電腦、平板電腦和螢幕且具整合 gamma 參考的 LCD 偏壓 This product has an integrated AVDD range from 7V to 10.1V (instead of 6.0 to 9.1V) and has Vio and Vcore in sync.

技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 LCD Bias with Integrated Gamma Reference for Notebook PCs, Tablet PCs datasheet 2013/7/19
應用說明 Basic Calculation of a Boost Converter's Power Stage (Rev. D) PDF | HTML 2022/10/28
應用說明 Understanding Undervoltage Lockout in Power Devices (Rev. A) 2018/9/19
技術文章 Display Power: Why TFT LCD needs Temperature Compensation PDF | HTML 2017/7/26
應用說明 How to Generate a Regulated VGL Supply Using the TPS65642A 2016/12/8
應用說明 Basic Calculation of a Buck Converter's Power Stage (Rev. B) PDF | HTML 2015/8/17
應用說明 Minimizing Ringing at the Switch Node of a Boost Converter 2006/9/15

設計與開發

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計算工具

TPS65642DESIGN-CALC — TPS65642 溫度補償計算

TPS65642 Temperature Compensation Calculation Tool.
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