TPS65182 Datasheet, PDF (1/24 Pages) Texas Instruments – PMIC FOR E Ink Vizplex ENABLED ELECTRONIC PAPER DISPLAY

TPS65182, TPS65182B
www.ti.com
SLVSAA2C – MARCH 2010 – REVISED OCTOBER 2010
PMIC FOR E Ink^® Vizplex™ ENABLED ELECTRONIC PAPER DISPLAY
Check for Samples: TPS65182, TPS65182B
FEATURES
1
•2345 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
– Adjustable Through External Potentiometer
– 15-mA Max Integrated Switch
• 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
• Sleep Mode Support
• Thermally Enhanced Package for Efficient
Heat Management
(48-Pin 7 mm x 7 mm x 0.9 mm QFN)
APPLICATIONS
• Power Supply for Active Matrix E Ink^®
Vizplex™ Panels
• E-Book Readers
• EPSON^® S1D13522 (ISIS) Timing Controller
• EPSON^® S1D13521 (Broadsheet) Timing
Controller
• Application Processors With Integrated or
Software Timing Controller ( OMAP™)
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.
OMAP is a trademark of Texas Instruments.
2
Vizplex is a trademark of E Ink Corporation.
3
E Ink is a registered trademark of E Ink Corporation.
4
EPSON is a registered trademark of Seiko Epson Corporation.
5
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010, Texas Instruments Incorporated