TPS65186 Datasheet, PDF (1/47 Pages) Texas Instruments – PMIC FOR E Ink® Vizplex™ ENABLED ELECTRONIC PAPER DISPLAY

TPS65186
www.ti.com
SLVSB04 – JULY 2011
PMIC FOR E Ink^® Vizplex™ ENABLED ELECTRONIC PAPER DISPLAY
Check for Samples: TPS65186
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
• Supports 9.7 Inch and Larger Panel Size
• 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
– User Programmable Default
– 0 V to -5.11 V
– ± 1.5% accuracy (±10 mV)
– 9-Bit Control (10-mV Nominal Step Size)
• Flexible Power-Up and Power Down
Sequencing
• Integrated 10-Ω, 3.3-V Power Switch for
Disabling System Power Rail to E-Ink Panel
• Thermistor Monitoring
– –10°C to 85°C Temperature Range
– ±1°C Accuracy from 0°C to 50°C
• I²C Serial Interface
– Slave Address 0x48h
• Package Options:
– 48-Pin, 0.5 mm Pitch,
7 mm x 7 mm x 0.9 mm (QFN) RGZ
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™)
DESCRIPTION
The TPS65186 is a single-chip power supply designed to for E Ink^® Vizplex™ displays used in portable e-reader
applications and supports panel sizes up to 9.7 inches and greater. Two high efficiency DC/DC boost converters
generate ±16-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 that can be adjusted from 0 V to -5.11 V with 9-bit
control through the serial interface and can source or sink current depending on panel condition. The TPS65186
supports automatic panel kickback voltage measurement which eliminates the need of manual VCOM calibration
in the production line. The measurement result can be stored in non-volatile memory to become the new VCOM
power-up default value.
TPS65186 is available in a 48-pin 7x7 mm² QFN with 0.5-mm pitch.
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
PRODUCT PREVIEW information concerns products in the
formative or design phase of development. Characteristic data and
other specifications are design goals. Texas Instruments reserves
the right to change or discontinue these products without notice.
Copyright © 2011, Texas Instruments Incorporated