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TPS65123

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3 通道单电感器多路输出 (SIMO) 偏置 IC

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数据表

TPS65123

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产品详情

Display type LCD unipolar IC integration LCD bias Vin (min) (V) 2.5 Vin (max) (V) 5.5 Applications 7 inches or less Source driver voltage (min) (V) 3 Source driver voltage (max) (V) 5.6 Level shifter/scan driver (Ch) 0 V_POS (min) (V) 3 V_POS (max) (V) 20 V_NEG (min) (V) -18 V_NEG (max) (V) -1.5 Features Output discharge Topology Boost, Inverting Buck-Boost Rating Catalog Operating temperature range (°C) -40 to 85
Display type LCD unipolar IC integration LCD bias Vin (min) (V) 2.5 Vin (max) (V) 5.5 Applications 7 inches or less Source driver voltage (min) (V) 3 Source driver voltage (max) (V) 5.6 Level shifter/scan driver (Ch) 0 V_POS (min) (V) 3 V_POS (max) (V) 20 V_NEG (min) (V) -18 V_NEG (max) (V) -1.5 Features Output discharge Topology Boost, Inverting Buck-Boost Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RGT) 16 9 mm² 3 x 3
  • Main Output, VMAIN
    • Adjustable Voltage, 3.0 V to 5.6 V/25 mA
    • Post-Regulated for Low Ripple (5mVPP)
    • ±0.8% Typical Accuracy
    • Efficiency up to 83%
  • Positive Output, VGH
    • Adjustable Voltage up to 20 V/2 mA
    • ±3% Typical Accuracy
  • Negative Output, VGL
    • Adjustable Voltage down to -18 V/2 mA
    • ±3% Typical Accuracy
  • Auxiliary 1.8 V/3.3 V Linear Regulator
  • Automatic or Programmable Power Sequencing
  • Complete 1 mm Component Profile Solution
  • 2.5 V to 5.5 V Input Voltage Range
  • Output Short Circuit Protected
  • 16-Pin QFN Package (3 × 3 × 0,9 mm)
  • APPLICATIONS
    • Small Form Factor a-Si and LTPS TFT LCD
    • Cell Phones, Smart Phones
    • PDAs, Pocket PCs
    • Portable DVD
    • Digital-Still Cameras, Camcorders
    • Handheld Instruments
    • Portable GPS
    • Car Navigation Systems
  • Main Output, VMAIN
    • Adjustable Voltage, 3.0 V to 5.6 V/25 mA
    • Post-Regulated for Low Ripple (5mVPP)
    • ±0.8% Typical Accuracy
    • Efficiency up to 83%
  • Positive Output, VGH
    • Adjustable Voltage up to 20 V/2 mA
    • ±3% Typical Accuracy
  • Negative Output, VGL
    • Adjustable Voltage down to -18 V/2 mA
    • ±3% Typical Accuracy
  • Auxiliary 1.8 V/3.3 V Linear Regulator
  • Automatic or Programmable Power Sequencing
  • Complete 1 mm Component Profile Solution
  • 2.5 V to 5.5 V Input Voltage Range
  • Output Short Circuit Protected
  • 16-Pin QFN Package (3 × 3 × 0,9 mm)
  • APPLICATIONS
    • Small Form Factor a-Si and LTPS TFT LCD
    • Cell Phones, Smart Phones
    • PDAs, Pocket PCs
    • Portable DVD
    • Digital-Still Cameras, Camcorders
    • Handheld Instruments
    • Portable GPS
    • Car Navigation Systems

The TPS6512x DC-DC converter supplies all three voltages required by amorphous-silicon (a-Si) and low-temperature poly-silicon (LTPS) TFT-LCD displays. The compact layout of the TPS6512x uses a single inductor to generate independently-regulated positive and negative outputs. A free-running variable peak current PWM control scheme time-multiplexes the inductor between outputs. This control architecture operates at a pseudo-fixed-frequency to provide fast response to line and load transients while maintaining a relatively constant switching frequency and high efficiency over a wide range of input and output voltages. Due to the high switching frequency capability of the device, inexpensive and ultra-thin 8.2 or 10 µH inductors can be used.

The main output, VMAIN, is post-regulated to provide a low-ripple source drive voltage for the LCD display. The auxiliary outputs generate a boosted output voltage, VGH, up to 20 V, and a negative output voltage, VGL, down to -18 V for the LCD gate drive. The device has internal current limiting for high reliability under fault conditions. Additionally, the device offers a fixed output linear regulator for the LCD logic circuitry.

The TPS6512x DC-DC converter supplies all three voltages required by amorphous-silicon (a-Si) and low-temperature poly-silicon (LTPS) TFT-LCD displays. The compact layout of the TPS6512x uses a single inductor to generate independently-regulated positive and negative outputs. A free-running variable peak current PWM control scheme time-multiplexes the inductor between outputs. This control architecture operates at a pseudo-fixed-frequency to provide fast response to line and load transients while maintaining a relatively constant switching frequency and high efficiency over a wide range of input and output voltages. Due to the high switching frequency capability of the device, inexpensive and ultra-thin 8.2 or 10 µH inductors can be used.

The main output, VMAIN, is post-regulated to provide a low-ripple source drive voltage for the LCD display. The auxiliary outputs generate a boosted output voltage, VGH, up to 20 V, and a negative output voltage, VGL, down to -18 V for the LCD gate drive. The device has internal current limiting for high reliability under fault conditions. Additionally, the device offers a fixed output linear regulator for the LCD logic circuitry.
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类型 标题 下载最新的英语版本 日期
* 数据表 Single-Inductor Quadruple-Output TFT LCD Power Supply 数据表 (Rev. A) 2005年 3月 28日
应用手册 Understanding Undervoltage Lockout in Power Devices (Rev. A) 2018年 9月 19日
应用手册 Generation of a VCOM buffer input using PWM signal 2015年 12月 21日

设计和开发

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评估板

TPS65120EVM-076 — TPS65120 评估模块

The TPS65120EVM-076 is an evaluation tool for the TPS65120 multi-channel power supply for small form-factor TFT LCD displays. The evaluation module can accept input voltages in range of 2.5V to 5.5V and supplies Vmain = 5V, Vgh = 12V and Vgl = -12V to power a-Si or LTPS TFT displays. Other voltages (...)

用户指南: PDF
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评估板

TPS65124EVM-076 — TPS65124 评估模块

The TPS65124EVM-076 is an evaluation tool for the TPS65124 multi-channel power supply for small form-factor TFT LCD displays. The evaluation module can accept input voltages in range of 2.5V to 5.5V and supplies Vmain = 5V, Vgh = 12V and Vgl = -12V to power a-Si or LTPS TFT displays. Other voltages (...)

用户指南: PDF
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订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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