Hot-selling and scarce TPS65185RGZT PMIC for E Ink Vizplex Enabled Electronic Paper Display QFN spot stock

Product Descriptions

The TPS65185x device is a single-chip power supply designed to for E Ink Vizplex displays used in portable e-reader applications, and the device supports panel sizes up to 9.7 inches and greater. Two high efficiency DC-DC boost converters generate ±16-V rails that 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 that support up to 120/200 mA (TPS65185/TPS651851) of output current. All rails are adjustable through the I 2C interface to accommodate specific panel requirements. 

Product Features

• Single Chip Power-Management Solution for E Ink® Vizplex™ Electronic Paper (E-Paper) Displays

• Generates Positive and Negative Gates, and Source Driver Voltages and Back-Plane Bias From a Single, Low-Voltage Input Supply

• Supports 9.7-Inch and Larger Panel Sizes

• 3-V to 6-V (TPS65185), 3-V to 5.9-V (TPS651851) Input Voltage Range

• Boost Converter for Positive Rail Base

• Inverting Buck-Boost Converter for Negative Rail Base

• Two Adjustable LDOs for Source Driver Supply

– TPS65185 LDO1: 15 V, 120 mA (VPOS)

– TPS65185 LDO2: –15 V, 120 mA (VNEG)

– TPS651851 LDO1: 15 V, 200 mA at VIN≥ 3.6 V (VPOS)

– TPS651851 LDO2: –15 V, 200 mA at VIN≥ 3.6 V (VNEG)

• Accurate Output Voltage Tracking

– VPOS – VNEG = ±50 mV

• Two Charge Pumps for Gate Driver Supply

– CP1: 22 V, 15 mA (VDDH)

– CP2: –20 V, 15 mA, (VEE)

• Adjustable VCOM Driver for Accurate PanelBackplane Biasing

– 0 V to –5.11 V

– ± 1.5 percent accuracy (±10 mV)

– 9-Bit Control (10-mV Nominal Step Size)

• Active Discharge on All Rails

• Integrated 10-Ω, 3.3-V Power Switch for Disabling System Power Rail to E-Ink Panel

Product Applications

• Power Supply for Active Matrix E Ink Vizplex Panels

• Electronic Paper Display (EPD) Power Supplies

• E-Book Readers

• Dual-Display Phone and Tablets

• Application Processors With Integrated or Software Timing Controller (OMAP™)

Product Specification

Product Photos

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