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TPS65181B - 产品图解:
TPS65181B-PMIC,用于启用 E Ink Vizplex 技术的电子纸显示器
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TI产品 - TPS65181B介绍
TPS65181B - PMIC,用于启用 E Ink Vizplex 技术的电子纸显示器

TPS65181B是TI公司的一款电流感应放大器、I2C/PMBus监控器产品,TPS65181B是PMIC,用于启用 E Ink Vizplex 技术的电子纸显示器,本页介绍了TPS65181B的产品说明、应用、特性等,并给出了与TPS65181B相关的TI元器件型号供参考。

TPS65181B - PMIC,用于启用 E Ink Vizplex 技术的电子纸显示器 - 电流感应放大器、I2C/PMBus监控器 - 保护、监控和热插拔 - TI公司(Texas Instruments,德州仪器)

产品描述

The TPS65180/TPS65181 and TPS65180B/TPS65181B family of devices are single-chip power supplies designed to for E Ink® Vizplex™ displays used in portable e-reader applications and support panel sizes up to 9.7 inches. Two high efficiency DC/DC boost converters generate ±17-V rails which are boosted to 22 V and –20 V by two change pumps to provide the gate driver supply for the Vizplex™ panel. Two tracking LDOs create the ±15-V source driver supplies which support up to 120-mA of output current. All rails are adjustable through the I2C interface to accommodate specific panel requirements.

Accurate back-plane biasing is provided by a linear amplifier and can be adjusted either by an external resistor or the I2C interface. The VCOM driver can source or sink current depending on panel condition. For automatic VCOM adjustment in production line, VCOM can be set from –0.3 V to –2.5 V with 8-bit control through the serial interface. The power switch is integrated to isolate VCOM driver from E Ink® panel.

The TPS65180/TPS65181 and TPS65180B/TPS65181B devices provide precise temperature measurement function to monitor the panel temperature during operation. The TPS65180/TPS65180B requires the host processor to trigger the temperature acquisition through an I2C write whereas the TPS65181/TPS65181B automatically updates the temperature every 60 s.

产品特性

  • Single Chip Power Management Solution for E Ink® Vizplex™ Electronic Paper Displays
  • Generates Positive and Negative Gate and Source Driver Voltages and Back-Plane Bias from a Single, Low-Voltage Input Supply
  • 3-V to 6-V Input Voltage Range
  • Boost Converter for Positive Rail Base
  • Inverting Buck-Boost Converter for Negative Rail Base
  • Two Adjustable LDOs for Source Driver Supply
    • LDO1: 15 V, 120 mA (VPOS)
    • LDO2: –15 V, 120 mA (VNEG)
  • Accurate Output Voltage Tracking
    • VPOS - VNEG = ±50 mV
  • Two Charge Pumps for Gate Driver Supply
    • CP1: 22 V, 10 mA (VDDH)
    • CP2: –20 V, 12 mA, (VEE)
  • Adjustable VCOM Driver for Accurate Panel-Backplane Biasing
    • –0.3 V to –2.5 V
    • ±1.5% Accuracy (±18 mV)
    • 8-Bit Control (11-mV Nominal Step Size)
    • 15-mA Max Integrated Switch
  • Integrated 3.3-V Power Switch for Disabling System Power Rail
  • Thermistor Monitoring
    • –10°C to 85°C Temperature Range
    • ±1°C Accuracy from 0°C to 50°C
  • I2C Serial Interface
    • Slave Address 0x48h (1001000)
  • Flexible Power-Up Sequencing
  • Interrupt and Sleep Mode Support
  • Thermally Enhanced Package for Efficient Heat Management (48-Pin 7 mm × 7 mm × 0.9 mm QFN)
  • APPLICATIONS
    • Power Supply for Active Matrix E Ink® Vizplex™ Panels
    • EPD Power Supply
    • E-Book Readers
    • EPSON® S1D13522 (ISIS) Timing Controller
    • EPSON® S1D13521 (Broadsheet) Timing Controller
    • Application Processors With Integrated or Software Timing Controller (OMAP™)

OMAP is a trademark of Texas Instruments. Vizplex is a trademark of E Ink Corporation. E Ink is a registered trademark of E Ink Corporation. EPSON is a registered trademark of Seiko Epson Corporation.

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