SLVSCY2A March   2015  – January 2016 TPS65632

PRODUCTION DATA.  

  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

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

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