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TPS65185RSLR Datasheet(PDF) 1 Page - Texas Instruments |
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TPS65185RSLR Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 52 page  TPS65185 www.ti.com SLVSAQ8B – FEBRUARY 2011 – REVISED OCTOBER 2011 PMIC FOR E Ink® Vizplex ™ ENABLED ELECTRONIC PAPER DISPLAY Check for Samples: TPS65185 1 FEATURES • Active Discharge on All Rails • Flexible Power-Up and Power Down 2345 • Single Chip Power Management Solution for Sequencing E Ink® Vizplex ™ Electronic Paper Displays • Integrated 10- Ω, 3.3-V Power Switch for • Generates Positive and Negative Gate and Disabling System Power Rail to E-Ink Panel Source Driver Voltages and Back-Plane Bias from a Single, Low-Voltage Input Supply • Thermistor Monitoring • Supports 9.7 Inch and Larger Panel Size – –10°C to 85°C Temperature Range • 3-V to 6-V Input Voltage Range – ±1°C Accuracy from 0°C to 50°C • Boost Converter for Positive Rail Base • I2C Serial Interface • Inverting Buck-Boost Converter for Negative – Slave Address 0x68h Rail Base • Package Options: • Two Adjustable LDOs for Source Driver – 48-Pin, 0.5 mm Pitch, Supply 7 mm x 7 mm x 0.9 mm (QFN) RGZ – LDO1: 15 V, 120 mA (VPOS) – 48-Pin, 0.4 mm Pitch, – LDO2: –15 V, 120 mA (VNEG) 6 mm x 6 mm x 0.9 mm (QFN) RSL • Accurate Output Voltage Tracking APPLICATIONS – VPOS - VNEG = ±50 mV • Power Supply for Active Matrix E Ink® • Two Charge Pumps for Gate Driver Supply Vizplex ™ Panels – CP1: 22 V, 10 mA (VDDH) • EPD Power Supply – CP2: –20 V, 12 mA, (VEE) • E-Book Readers • Adjustable VCOM Driver for Accurate • EPSON® S1D13522 (ISIS) Timing Controller Panel-Backplane Biasing • EPSON® S1D13521 (Broadsheet) Timing – User Programmable Default Controller – 0 V to -5.11 V • Application Processors With Integrated or – ± 1.5% accuracy (±10 mV) Software Timing Controller ( OMAP ™) – 9-Bit Control (10-mV Nominal Step Size) DESCRIPTION The TPS65185 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 TPS65185 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. 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 © 2011, 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. |
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