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TPS65186

AKTIV

PMIC für E-Ink®-Vizplex™-fähiges elektronisches Papierdisplay

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TPS65186

AKTIV
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Produktdetails

Regulated outputs (#) 4 Configurability Software configurable Vin (min) (V) 3 Vin (max) (V) 6 Iout (max) (A) 0 Features Enable pin Step-up DC/DC converter 2 Step-down DC/DC converter 20 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 2 Iq (typ) (mA) 5.5 Rating Catalog Switching frequency (max) (kHz) 560 Operating temperature range (°C) -10 to 85 Processor supplier E Ink Processor name Vizplex Shutdown current (ISD) (typ) (µA) 3.5 Switching frequency (typ) (kHz) 560
Regulated outputs (#) 4 Configurability Software configurable Vin (min) (V) 3 Vin (max) (V) 6 Iout (max) (A) 0 Features Enable pin Step-up DC/DC converter 2 Step-down DC/DC converter 20 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 2 Iq (typ) (mA) 5.5 Rating Catalog Switching frequency (max) (kHz) 560 Operating temperature range (°C) -10 to 85 Processor supplier E Ink Processor name Vizplex Shutdown current (ISD) (typ) (µA) 3.5 Switching frequency (typ) (kHz) 560
VQFN (RGZ) 48 49 mm² 7 x 7
  • Single Chip Power-Management Solution for
    E Ink Vizplex Electronic Paper Displays
  • Generates Positive and Negative Gates, 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
    • 0 V to –5.11 V
    • ± 1.5% accuracy (±10 mV)
    • 9-Bit Control (10-mV Nominal Step Size)
  • Integrated 10-Ω, 3.3-V Power Switch for Disabling
    System Power Rail to E-Ink Panel
  • Single Chip Power-Management Solution for
    E Ink Vizplex Electronic Paper Displays
  • Generates Positive and Negative Gates, 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
    • 0 V to –5.11 V
    • ± 1.5% accuracy (±10 mV)
    • 9-Bit Control (10-mV Nominal Step Size)
  • Integrated 10-Ω, 3.3-V Power Switch for Disabling
    System Power Rail to E-Ink Panel

The TPS65186 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-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; it can also source or sink current depending on panel condition. The TPS65186 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 nonvolatile memory to become the new VCOM power-up default value.

TPS65186 is available in a 48-pin 7-mm × 7-mm2 VQFN with 0.5-mm pitch.

The TPS65186 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-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; it can also source or sink current depending on panel condition. The TPS65186 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 nonvolatile memory to become the new VCOM power-up default value.

TPS65186 is available in a 48-pin 7-mm × 7-mm2 VQFN with 0.5-mm pitch.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet TPS65186 PMIC for E Ink Vizplex Enabled Electronic Paper Display datasheet (Rev. A) PDF | HTML 10 Aug 2015
Application note Understanding Undervoltage Lockout in Power Devices (Rev. A) 19 Sep 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018

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