SLVS504B March   2004  – September  2015 TPS65012

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 Battery Charger Electrical Characteristics
    7. 6.7 Serial Interface Timing Requirements
    8. 6.8 Dissipation Ratings
    9. 6.9 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 Battery Charger
        1. 7.3.1.1 Autonomous Power Source Selection
        2. 7.3.1.2 Temperature Qualification
        3. 7.3.1.3 Battery Preconditioning
        4. 7.3.1.4 Battery Charge Current
        5. 7.3.1.5 Battery Voltage Regulation
        6. 7.3.1.6 Charge Termination and Recharge
        7. 7.3.1.7 Sleep Mode
        8. 7.3.1.8 PG Output
        9. 7.3.1.9 Thermal Considerations for Setting Charge Current
      2. 7.3.2 Step-Down Converters, VMAIN and VCORE
        1. 7.3.2.1 Power-Save Mode Operation
        2. 7.3.2.2 Forced PWM
        3. 7.3.2.3 Dynamic Voltage Positioning
        4. 7.3.2.4 Soft Start
        5. 7.3.2.5 100% Duty Cycle Low-Dropout Operation
        6. 7.3.2.6 Active Discharge When Disabled
        7. 7.3.2.7 Power-Good Monitoring
        8. 7.3.2.8 Overtemperature Shutdown
      3. 7.3.3 Low-Dropout Voltage Regulators
        1. 7.3.3.1 Power-Good Monitoring
        2. 7.3.3.2 Enable and Sequencing
      4. 7.3.4 Undervoltage Lockout
      5. 7.3.5 Power-Up Sequencing
      6. 7.3.6 System Reset and Control Signals
      7. 7.3.7 Vibrator Driver
    4. 7.4 Device Functional Modes
      1. 7.4.1 TPS65012 Power States Description
        1. 7.4.1.1 State 1: No Power
        2. 7.4.1.2 State 2: ON
        3. 7.4.1.3 State 3: Low-Power Mode
        4. 7.4.1.4 State 4: Shutdown
    5. 7.5 Programming
      1. 7.5.1 LED2 Output
      2. 7.5.2 Interrupt Management
      3. 7.5.3 Serial Interface
    6. 7.6 Register Maps
      1. 7.6.1  CHGSTATUS Register (Address: 01h—Reset: 00h)
      2. 7.6.2  REGSTATUS Register (Address: 02h—Reset: 00h)
      3. 7.6.3  MASK1 Register (Address: 03h—Reset: FFh)
      4. 7.6.4  MASK2 Register (Address: 04h—Reset: FFh)
      5. 7.6.5  ACKINT1 Register (Address: 05h—Reset: 00h)
      6. 7.6.6  ACKINT2 Register (Address: 06h—Reset: 00h)
      7. 7.6.7  CHGCONFIG Register Address: 07h—Reset: 1Bh
      8. 7.6.8  LED1_ON Register (Address: 08h—Reset: 00h)
      9. 7.6.9  LED1_PER Register (Address: 09h—Reset: 00h)
      10. 7.6.10 LED2_ON Register (Address: 0Ah—Reset: 00h)
      11. 7.6.11 LED2_PER (Register Address: 0Bh—Reset: 00h)
      12. 7.6.12 VDCDC1 Register (Address: 0Ch—Reset: 72h/73h)
      13. 7.6.13 VDCDC2 Register (Address: 0Dh—Reset: 68h/78h)
      14. 7.6.14 VREGS1Register (Address: 0Eh—Reset: 88h)
      15. 7.6.15 MASK3 Register (Address: 0Fh—Reset: 00h)
      16. 7.6.16 DEFGPIO Register Address: (10h—Reset: 00h)
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 TPS65012 Typical Application
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Inductor Selection for the Main and the Core Converter
          2. 8.2.1.2.2 Output Capacitor Selection
          3. 8.2.1.2.3 Input Capacitor Selection
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Low-Power Mode
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
  9. 9 Power Supply Recommendations
    1. 9.1 LDO1 Output Voltage Adjustment
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Community Resources
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

9 Power Supply Recommendations

9.1 LDO1 Output Voltage Adjustment

The output voltage of LDO1 is set with a resistor divider at the feedback pin. The sum of the two resistors must not exceed 1 MΩ to minimize voltage changes due to leakage current into the feedback pin. The output voltage for LDO1 after start-up is the voltage set by the external resistor divider. It can be reprogrammed with the I2C interface to the three other values defined in the register VREGS1.