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TPS65124

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具有可调节定序的 3 通道单电感器多路输出 (SIMO) 偏置 IC

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TPS65124

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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 Adjustable sequencing, Output discharge 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 Adjustable sequencing, Output discharge 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
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
选择指南 电源管理指南 2018 (Rev. R) 2018年 6月 25日
应用手册 Generation of a VCOM buffer input using PWM signal 2015年 12月 21日
EVM 用户指南 TPS65120EVM-076, TPS65124EVM-076 User's Guide 2004年 6月 7日

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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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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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