TPS65181RGZT

PMIC，用于电子墨水？的Vizplex ？启用电子纸显示屏 PMIC FOR E Ink? Vizplex? ENABLED ELECTRONIC PAPER DISPLAY

Description

The TPS6518x and TPS65181xB 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.

Features

• 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 Maximum 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 VQFN

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™