TPS651851 Series
PMIC for E-Ink® Vizplex™ Enabled Electronic Paper Display w/ Active Discharge
Manufacturer: Texas Instruments
Catalog(2 parts)
| Part | Applications | Current - Supply▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Voltage - Supply▲▼ | Voltage - Supply▲▼ | Supplier Device Package | Mounting Type | Package / Case |
|---|---|---|---|---|---|---|---|---|---|
E Ink®, OMAP™, Vizplex™ Display | 0.005499999970197678 A | -10 °C | 85 °C | 6 V | 3 V | 48-VQFN (6x6) | Surface Mount | 48-VFQFN Exposed Pad | |
E Ink®, OMAP™, Vizplex™ Display | 0.005499999970197678 A | -10 °C | 85 °C | 6 V | 3 V | 48-VQFN (6x6) | Surface Mount | 48-VFQFN Exposed Pad |
Key Features
• Single Chip Power-Management Solution forE Ink®Vizplex™ Electronic Paper (E-Paper) DisplaysGenerates Positive and Negative Gates, and Source Driver Voltages and Back-Plane Bias From a Single, Low-Voltage Input SupplySupports 9.7-Inch and Larger Panel Sizes3-V to 6-V Input Voltage RangeBoost Converter for Positive Rail BaseInverting Buck-Boost Converter for Negative Rail BaseTwo Adjustable LDOs for Source Driver SupplyTPS65185 LDO1: 15 V, 120 mA (VPOS)TPS65185 LDO2: –15 V, 120 mA (VNEG)TPS651851 LDO1: 15 V, 200 mA atVIN≥ 3.6 V (VPOS)TPS651851 LDO2: –15 V, 200 mA atVIN≥ 3.6 V (VNEG)Accurate Output Voltage TrackingVPOS – VNEG = ±50 mVTwo Charge Pumps for Gate Driver SupplyCP1: 22 V, 15 mA (VDDH)CP2: –20 V, 15 mA, (VEE)Adjustable VCOM Driver for Accurate Panel-Backplane Biasing0 V to –5.11 V± 1.5% accuracy (±10 mV)9-Bit Control (10-mV Nominal Step Size)Active Discharge on All RailsIntegrated 10-Ω, 3.3-V Power Switch for Disabling System Power Rail to E-Ink PanelSingle Chip Power-Management Solution forE Ink®Vizplex™ Electronic Paper (E-Paper) DisplaysGenerates Positive and Negative Gates, and Source Driver Voltages and Back-Plane Bias From a Single, Low-Voltage Input SupplySupports 9.7-Inch and Larger Panel Sizes3-V to 6-V Input Voltage RangeBoost Converter for Positive Rail BaseInverting Buck-Boost Converter for Negative Rail BaseTwo Adjustable LDOs for Source Driver SupplyTPS65185 LDO1: 15 V, 120 mA (VPOS)TPS65185 LDO2: –15 V, 120 mA (VNEG)TPS651851 LDO1: 15 V, 200 mA atVIN≥ 3.6 V (VPOS)TPS651851 LDO2: –15 V, 200 mA atVIN≥ 3.6 V (VNEG)Accurate Output Voltage TrackingVPOS – VNEG = ±50 mVTwo Charge Pumps for Gate Driver SupplyCP1: 22 V, 15 mA (VDDH)CP2: –20 V, 15 mA, (VEE)Adjustable VCOM Driver for Accurate Panel-Backplane Biasing0 V to –5.11 V± 1.5% accuracy (±10 mV)9-Bit Control (10-mV Nominal Step Size)Active Discharge on All RailsIntegrated 10-Ω, 3.3-V Power Switch for Disabling System Power Rail to E-Ink Panel
Description
AI
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 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; it can source or sink current depending on panel condition. The TPS65185x supports automatic panel kickback voltage measurement, which eliminates the need for 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.
TPS65185 is available in two packages, a 48-pin 7-mm × 7-mm2VQFN (RGZ) with 0.5-mm pitch, and a 48-pin 6-mm × 6-mm2VQFN (RSL) with 0.4-mm pitch. The TPS651851 is available in a 48-pin 6-mm × 6-mm2VQFN (RSL) with 0.4-mm pitch.
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 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; it can source or sink current depending on panel condition. The TPS65185x supports automatic panel kickback voltage measurement, which eliminates the need for 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.
TPS65185 is available in two packages, a 48-pin 7-mm × 7-mm2VQFN (RGZ) with 0.5-mm pitch, and a 48-pin 6-mm × 6-mm2VQFN (RSL) with 0.4-mm pitch. The TPS651851 is available in a 48-pin 6-mm × 6-mm2VQFN (RSL) with 0.4-mm pitch.