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SLVSAA2C – MARCH 2010 – REVISED OCTOBER 2010
PMIC FOR E Ink Vizplex ENABLED ELECTRONIC PAPER DISPLAY
1
FEATURES
Thermistor Monitoring
2345
Single Chip Power Management Solution for
–
–10°C to 85°C Temperature Range
E Ink Vizplex Electronic Paper Displays
–
±1°C Accuracy from 0°C to 50°C
Generates Positive and Negative Gate and
I2C Serial Interface
Source Driver Voltages and Back-Plane Bias
–
Slave Address 0x48h (1001000)
from a Single, Low-Voltage Input Supply
Flexible Power-Up Sequencing
3-V to 6-V Input Voltage Range
Sleep Mode Support
Boost Converter for Positive Rail Base
Thermally Enhanced Package for Efficient
Inverting Buck-Boost Converter for Negative
Heat Management
Rail Base
(48-Pin 7 mm x 7 mm x 0.9 mm QFN)
Two Adjustable LDOs for Source Driver
Supply
APPLICATIONS
–
LDO1: 15 V, 120 mA (VPOS)
Power Supply for Active Matrix E Ink
Vizplex Panels
–
LDO2: –15 V, 120 mA (VNEG)
E-Book Readers
Accurate Output Voltage Tracking
EPSON S1D13522 (ISIS) Timing Controller
–
VPOS - VNEG = ±50 mV
EPSON S1D13521 (Broadsheet) Timing
Two Charge Pumps for Gate Driver Supply
Controller
–
CP1: 22 V, 10 mA (VDDH)
Application Processors With Integrated or
–
CP2: –20 V, 12 mA, (VEE)
Software Timing Controller ( OMAP)
Adjustable VCOM Driver for Accurate
Panel-Backplane Biasing
–
–0.3 V to –2.5 V
–
Adjustable Through External Potentiometer
–
15-mA Max Integrated Switch
DESCRIPTION
The TPS65182/TPS65182B device is a 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.
The TPS65182/TPS65182B provides precise temperature measurement function to monitor the panel
temperature during operation. The temperature reading is updated every 60 s and can be accessed through the
I2C interface.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
OMAP is a trademark of Texas Instruments.
3
Vizplex is a trademark of E Ink Corporation.
4
E Ink is a registered trademark of E Ink Corporation.
5
EPSON is a registered trademark of Seiko Epson Corporation.
PRODUCTION DATA information is current as of publication date.
Copyright 2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.