SLVS551A December   2004  – September 2015 TPS65014

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  Electrical Characteristics: Battery Charger
    7. 6.7  Dissipation Ratings
    8. 6.8  Serial Interface Timing Requirements
    9. 6.9  Switching Characteristics
    10. 6.10 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 Step-Down Converters, VMAIN and VCORE
        1. 7.3.1.1 Forced PWM
        2. 7.3.1.2 Dynamic Voltage Positioning
        3. 7.3.1.3 Soft-Start
        4. 7.3.1.4 100% Duty Cycle Low Dropout Operation
        5. 7.3.1.5 Active Discharge When Disabled
        6. 7.3.1.6 Power-Good Monitoring
        7. 7.3.1.7 Overtemperature Shutdown
      2. 7.3.2 Low-Dropout Voltage Regulators
        1. 7.3.2.1 Power-Good Monitoring
        2. 7.3.2.2 Enabling and Sequencing
      3. 7.3.3 Undervoltage Lockout
      4. 7.3.4 Power-Up Sequencing
        1. 7.3.4.1 TPS65014 Power State Descriptions
          1. 7.3.4.1.1 State 1: No Power
          2. 7.3.4.1.2 State 2: ON
          3. 7.3.4.1.3 State 3: Low-Power Mode
          4. 7.3.4.1.4 State 4: Shutdown
      5. 7.3.5 System Reset and Control Signals
      6. 7.3.6 Vibrator Driver
      7. 7.3.7 LED2 Output
      8. 7.3.8 Interrupt Management
      9. 7.3.9 Serial Interface
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power Save Mode Operation
      2. 7.4.2 Sleep Mode
    5. 7.5 Register Maps
      1. 7.5.1  CHGSTATUS Register (offset = 01h) (reset: 00h)
      2. 7.5.2  REGSTATUS Register (offset = 02h) (reset: 00h)
      3. 7.5.3  MASK1 Register (offset = 03h) (reset: FFh)
      4. 7.5.4  MASK2 Register (offset = 04h) (reset: FFh)
      5. 7.5.5  ACKINT1 Register (offset = 05h) (reset: 00h)
      6. 7.5.6  ACKINT2 Register (offset: 06h) (reset: 00h)
      7. 7.5.7  CHGCONFIG Register (offset: 07h) (reset: 1Bh)
      8. 7.5.8  LED1_ON Register (offset: 08h) (reset: 00h)
      9. 7.5.9  LED1_PER Register (offset: 09h) (reset: 00h)
      10. 7.5.10 LED2_ON Register (offset: 0Ah) (reset: 00h)
      11. 7.5.11 LED2_PER (offset: 0Bh) (reset: 00h)
      12. 7.5.12 VDCDC1 Register (offset: 0Ch) (reset: 32h/33h)
      13. 7.5.13 VDCDC2 Register (offset: 0Dh) (reset: 60h/70h)
      14. 7.5.14 VREGS1 Register (offset: 0Eh) (reset: 88h)
      15. 7.5.15 MASK3 Register (offset: 0Fh) (reset: 00h)
      16. 7.5.16 DEFGPIO Register (offset = 10h) (reset: 00h)
  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 for the Main and the Core Converter
        2. 8.2.2.2 Output Capacitor Selection
        3. 8.2.2.3 Input Capacitor Selection
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
    1. 9.1 Battery Charger
      1. 9.1.1 Autonomous Power Source Selection
      2. 9.1.2 Temperature Qualification
      3. 9.1.3 Battery Preconditioning
      4. 9.1.4 Battery Charge Current
      5. 9.1.5 Battery Voltage Regulation
      6. 9.1.6 Charge Termination and Recharge
      7. 9.1.7 PG Output
      8. 9.1.8 Thermal Considerations for Setting Charge Current
    2. 9.2 LDO1 Output Voltage Adjustment
  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 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Linear Charger Management for Single Li-Ion or Li-Polymer Cells
  • Dual Input Ports for Charging From USB or From Wall Plug, Handles 100-mA and 500-mA USB Requirements
  • Charge Current Programmable Through External Resistor
  • 1-A, 95% Efficient Step-Down Converter for I/O and Peripheral Components (VMAIN)
  • 400-mA, 90% Efficient Step-Down Converter for Processor Core (VCORE)
  • 2× 200-mA LDOs for I/O and Peripheral Components, LDO Enable Through Bus
  • Serial Interface Compatible With I2C, Supports 100-kHz, 400-kHz Operation
  • LOW_PWR Pin to Lower or Disable Processor Core Supply Voltage in Deep-Sleep Mode
  • 70-µA Quiescent Current
  • 1% Reference Voltage
  • Thermal-Shutdown Protection

2 Applications

  • All Single Li-Ion Cell-Operated Products Requiring Multiple Supplies Including:
    • PDAs
    • Cellular and Smart Phones
    • Internet Audio Players
    • Digital Still Cameras
  • Digital Radio Players
  • Split-Supply DSP and µP Solutions

3 Description

The TPS65014 device is an integrated power- and battery-management IC for applications powered by one Li-ion or Li-polymer cell and which require multiple power rails. The TPS65014 provides two highly efficient, step-down converters targeted at providing the core voltage and peripheral I/O rails in a processor-based system. Both step-down converters enter a low-power mode at light load for maximum efficiency across the widest possible range of load currents. The LOW_PWR pin allows the core converter to lower its output voltage when the application processor goes into deep sleep. The TPS65014 also integrates two 200-mA LDO voltage regulators, which are enabled through the serial interface. Each LDO operates with an input voltage range of 1.8 V to 6.5 V, thus allowing them to be supplied from one of the step-down converters or directly from the battery.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS65014 VQFN (48) 7.00 mm × 7.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Functional Block Diagram

TPS65014 fbd_lvs551.gif