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  • TPS65632 Triple-Output AMOLED Display Power Supply

    • SLVSCY2A March   2015  – January 2016 TPS65632

      PRODUCTION DATA.  

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  • TPS65632 Triple-Output AMOLED Display Power Supply
  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Boost Converter 1 (VPOS)
        1. 7.3.1.1 V(POS) Boost Output Sense (FBS Pin)
      2. 7.3.2 Inverting Buck-Boost Converter (VNEG)
        1. 7.3.2.1 Programming VNEG
        2. 7.3.2.2 Controlling VNEG Transition Time
      3. 7.3.3 Boost Converter 2 (AVDD)
      4. 7.3.4 Soft Start and Start-Up Sequence
      5. 7.3.5 Enable (CTRL)
      6. 7.3.6 Undervoltage Lockout
      7. 7.3.7 Short-Circuit Protection
        1. 7.3.7.1 Short Circuits During Operation
        2. 7.3.7.2 Short Circuits During Start Up
      8. 7.3.8 Output Discharge During Shut Down
      9. 7.3.9 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operation with VI < 2.9 V
      2. 7.4.2 Operation with VI ≈ VPOS (Diode Mode)
      3. 7.4.3 Operation with CTRL
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Inductor Selection
        2. 8.2.2.2 Capacitor Selection
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Ordering Information
  13. IMPORTANT NOTICE

Package Options

Mechanical Data (Package|Pins)
  • RTE|16
    • MPQF149D
Thermal pad, mechanical data (Package|Pins)
  • RTE|16
    • QFND525B
Orderable Information
  • slvscy2a_oa
  • slvscy2a_pm
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DATA SHEET

TPS65632 Triple-Output AMOLED Display Power Supply

1 Features

  • 2.9-V to 4.5-V Input Voltage Range
  • Boost Converter 1 (VPOS)
    • 4.6-V Output Voltage
    • 0.5% Accuracy (25°C to 85°C )
    • Dedicated Output Sense Pin
    • 300-mA Output Current
  • Inverting Buck-Boost Converter (VNEG)
    • –1.5-V to –5.4-V Programmable Output Voltage
    • –4-V Default Output Voltage
    • 300-mA Output Current
  • Boost Converter 2 (AVDD)
    • 5.8-V or 7.7-V Output Voltage
    • 30-mA Output Current
  • Excellent Line Transient Regulation
  • Short-Circuit Protection
  • Thermal Shutdown
  • 3-mm × 3-mm, 16-Pin WQFN Package

2 Applications

    AMOLED Displays

3 Description

The TPS65632 is designed to drive AMOLED displays (Active Matrix Organic Light Emitting Diode) requiring three supply rails, VPOS, VNEG and AVDD. The device integrates a boost converter for VPOS, an inverting buck-boost converter for VNEG, and a boost converter for AVDD, all of which are suitable for battery operated products. The digital control pin (CTRL) allows programming the negative output voltage in digital steps. The TPS65632 uses a novel technology enabling excellent line and load regulation.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS65632 WQFN (16) 3.00 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

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Simplified Schematic

TPS65632 schematic_01_slvscy2.gif

Efficiency vs Output Current

TPS65632 front_page_efficiency_slvscy2.png

4 Revision History

Changes from * Revision (March 2015) to A Revision

  • Changed Load regulation (0.18 TYP) UNIT value in the Electrical Characteristics From: %/mA To: %/A Go

5 Pin Configuration and Functions

RTE Package
16-Pin WQFN with Thermal Pad
Top View
TPS65632 pinout_slvscy2.gif

Pin Functions

PIN TYPE(1) DESCRIPTION
NAME NO.
AGND 7 GND Analog ground.
AVIN 16 PWR Supply voltage for the device.
CT 6 I/O A capacitor connected between this pin and ground sets the transition time for VNEG when programmed to a new value.
CTRL 9 I Boost converter 1 (VPOS) inverting buck-boost converter (VNEG) enable/program.
EN 8 I Boost converter 2 (AVDD) enable.
FBS 4 I Boost converter 1 (VPOS) sense input.
OUTN 10 O Inverting buck-boost converter output (VNEG).
OUTP 3 O Boost converter 1 output (VPOS).
OUTP2 13 O Boost converter 2 output (AVDD).
PGND1 2 GND Boost converter 1 power ground.
PGND2 14 GND Boost converter 2 power ground.
PVIN 12 PWR Inverting buck-boost converter power stage supply voltage.
SELP2 5 I Boost converter 2 output voltage selection pin. AVDD = 7.7 V when SELP2 = low and 5.8 V when SELP2 = high.
SWN 11 I/O Inverting buck-boost converter switch pin.
SWP1 1 I Boost converter 1 switch pin.
SWP2 15 I Boost converter 2 switch pin.
Exposed thermal pad — Connect this pad to AGND, PGND1 and PGND2.
(1) GND = Ground, PWR = Power, I = Input, O = Output, I/O = Input/Output

 
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