- 制造厂商：TI
- 产品类别：电源管理
- 技术类目：LCD 和 OLED 显示电源和驱动器
- 功能描述：具有 LDO、GPM 的 3 通道 LCD 偏置、VCOM 缓冲器和复位 IC
- 点击这里打开及下载TPS65146的技术文档资料
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The TPS65146 offers a very compact power supply solution designed to supply the LCD bias voltages required by TFT (Thin Film Transistor) LCD panels running from a typical 3.3 V or 5 V supply rail. The device integrates a step-up converter for VS (Source Driver voltage), a positive charge pump regulator for VGH (Gate Driver High voltage), a logic voltage rail using an integrated LDO and a Vcom buffer driving the LCD backplane. In addition to that, a gate voltage shaping block is integrated for VGH, modulating the signal (into VGHM) with high flexibility by using a logic input VFLK and an external discharge resistor connected to RE pin. Also, an external discrete negative charge pump can be set using the boost converter of the TPS65146 to generate VGL (Gate Driver Low voltage). The integrated reset function together with the LCD discharge function available in the TPS65146 provide the signals enabling the discharge of the LCD TFT pixels when powering-off. The device includes safety features like overvoltage protection (OVP), as well as thermal shutdown.
- 2.5V to 6.0V Input Voltage Range
- 16.5V Boost Converter With 2A Switch Current
- 650kHz/1.2MHz Selectable Switching Frequency
- Adjustable Soft-Start for the Boost Converter
- 500mA LDO
- Reset Function (XAO Signal)
- Regulated VGH
- Gate Voltage Shaping
- VCOM Buffer
- LCD Discharge Function
- Overvoltage Protection
- Thermal Shutdown
- Undervoltage Lockout
- 24-Pin 4×4mm QFN Package
- APPLICATIONS
- Notebook PC
- Monitor
- Display type
- LCD unipolar
- IC integration
- LCD bias, VCOM
- Vin (Min) (V)
- 2.5
- Vin (Max) (V)
- 6
- Source driver voltage (Min) (V)
- 7
- Source driver voltage (Max) (V)
- 16.5
- Level shifter/scan driver (ch)
- 0
- Features
- GPM or GVS, Output discharge, Reset generator, VCOM or op amp
- Topology
- Boost
- Rating
- Catalog
TPS65146的完整型号有：TPS65146RGER，以下是这些产品的关键参数及官网采购报价：
TPS65146RGER，工作温度：-40 to 85，封装：VQFN (RGE)-24，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPS65146RGER的批量USD价格：1.144（1000+）
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