SLVS957E June   2009  – April 2016 TPS61300 , TPS61301 , TPS61305

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1. 3.1 Simplified Schematic
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagrams
    3. 8.3 Feature Description
      1. 8.3.1  Safety Timer Accuracy
      2. 8.3.2  LED Failure Modes and Overvoltage Protection
      3. 8.3.3  Start-Up Sequence
      4. 8.3.4  Power Good (Flash Ready)
      5. 8.3.5  LED Temperature Monitoring (TPS61305, TPS61305A, TPS61306)
      6. 8.3.6  Hot Die Detector
      7. 8.3.7  NRESET Input: Hardware Enable and Disable
      8. 8.3.8  ENDCL Input: DC Light Hardware Control
      9. 8.3.9  Flashlight Blanking (Tx-MASK)
      10. 8.3.10 Undervoltage Lockout
      11. 8.3.11 Storage Capacitor Active Cell Balancing
      12. 8.3.12 RED Light Privacy Indicator
      13. 8.3.13 White LED Privacy Indicator
      14. 8.3.14 Storage Capacitor, Precharge Voltage Calibration
      15. 8.3.15 Storage Capacitor, Adaptive Precharge Voltage
      16. 8.3.16 Serial Interface Description
    4. 8.4 Device Functional Modes
      1. 8.4.1  Down-Mode in Voltage Regulation Mode
      2. 8.4.2  LED High-Current Regulators, Unused Inputs
      3. 8.4.3  Power-Save Mode Operation, Efficiency
      4. 8.4.4  Mode of Operation: DC Light and Flashlight
      5. 8.4.5  Flash Strobe is Level Sensitive (STT = 0): LED Strobe Follows FLASH_SYNC Input
      6. 8.4.6  Flash Strobe Is Leading Edge Sensitive (STT = 1): One-Shot LED Strobe
      7. 8.4.7  Current Limit Operation
      8. 8.4.8  Hardware Voltage Mode Selection
      9. 8.4.9  Shutdown
      10. 8.4.10 Thermal Shutdown
      11. 8.4.11 F/S-Mode Protocol
      12. 8.4.12 HS-Mode Protocol
      13. 8.4.13 TPS6130xx I2C Update Sequence
    5. 8.5 Register Maps
      1. 8.5.1  Slave Address Byte
      2. 8.5.2  Register Address Byte
      3. 8.5.3  REGISTER1 (TPS61300, TPS61301)
      4. 8.5.4  REGISTER1 (TPS61305, TPS61305A, TPS61306)
      5. 8.5.5  REGISTER2 (TPS61300, TPS61301)
      6. 8.5.6  REGISTER2 (TPS61305, TPS61305A, TPS61306)
      7. 8.5.7  REGISTER3
      8. 8.5.8  REGISTER4
      9. 8.5.9  REGISTER5
      10. 8.5.10 REGISTER6 (TPS61300, TPS61301)
      11. 8.5.11 REGISTER6 (TPS61305, TPS61305A)
      12. 8.5.12 REGISTER7
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 4100-mA Two White High-Power LED Flashlight Featuring Storage Capacitor
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Inductor Selection
          2. 9.2.1.2.2 Input Capacitor
          3. 9.2.1.2.3 Output Capacitor
          4. 9.2.1.2.4 NTC Selection (TPS61305, TPS61305A, TPS61306)
          5. 9.2.1.2.5 Checking Loop Stability
        3. 9.2.1.3 Application Curves
      2. 9.2.2 TPS61300 Typical Application
        1. 9.2.2.1 Design Requirement
        2. 9.2.2.2 Application Curves
    3. 9.3 System Examples
      1. 9.3.1 2x 600-mA High-Power White LED Solution Featuring Privacy Indicator
      2. 9.3.2 White LED Flashlight Driver and Audio Amplifier Power Supply Operating Simultaneously
      3. 9.3.3 White LED Flashlight Driver and Audio Amplifier Power Supply Operating Simultaneously
      4. 9.3.4 White LED Flashlight Driver and Audio Amplifier Power Supply Exclusive Operation
      5. 9.3.5 White LED Flashlight Driver and Auxiliary Lighting Zone Power Supply
      6. 9.3.6 TPS61300, Typical Application
      7. 9.3.7 TPS61301, Typical Application
      8. 9.3.8 TPS61305 Typical Application
      9. 9.3.9 TPS61306, Typical Application
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Considerations
  12. 12Device and Documentation Support
    1. 12.1 Related Links
    2. 12.2 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Four Operational Modes
    • DC Light and Flashlight
    • Voltage Regulated Converter: 3.8 V to 5.7 V
    • Standby: 2 μA (Typical)
  • Storage Capacitor Friendly Solution
  • Automatic VF and ESR Calibration
  • Power-Save Mode for Improved Efficiency at Low Output Power, Up to 95% Efficiency
  • Output Voltage Remains Regulated When Input Voltage Exceeds Nominal Output Voltage
  • I2C Compatible Interface up to 3.4 Mbits/s
  • Zero Latency Tx-Masking Input
  • Hardware Voltage Mode Selection Input (TPS61300, TPS61301)
  • DC Light Mode Selection Input
    (TPS61300, TPS61306)
  • Hardware Reset Input (TPS61301, TPS61305)
  • LED Temperature Monitoring (TPS61305)
  • Privacy Indicator LED Output
  • Integrated LED Safety Timer
  • Total Solution Size of Less Than 25 mm2 (< 1 mm height)
  • Available in a 20-Pin NanoFree™ (DSBGA)

2 Applications

  • Single, Dual, or Triple White LED Flashlight Supply for Cell Phones and Smart-Phones
  • LED Based Xenon Killer Flashlight
  • Audio Amplifier Power Supply

3 Description

The TPS6130xx device is based on a high-frequency synchronous boost topology with constant current sinks to drive up to three white LEDs in parallel (400‑mA, 800-mA, and 400-mA maximum flash current). The extended high-current mode (HC_SEL) allows up to 1025-mA, 2050-mA, and 1025-mA flash current out of the storage capacitor.

The high-capacity storage capacitor on the output of the boost regulator provides the high-peak flash LED current, thereby reducing the peak current demand from the battery to a minimum.

The 2-MHz switching frequency allows the use of small and low profile 2.2-μH inductors. To optimize overall efficiency, the device operates with a 400-mV LED feedback voltage.

The TPS6130xx device not only operates as a regulated current source, but also as a standard voltage boost regulator. The device keeps the output voltage regulated even when the input voltage exceeds the nominal output voltage. The device enters power-save mode operation at light load currents to maintain high efficiency over the entire load current range.

To simplify flashlight synchronization with the camera module, the device offers a trigger pin (FLASH_SYNC) for zero latency LED turnon time.

Table 1. Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS6130xx DSBGA (20) 1.90 mm × 2.20 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

3.1 Simplified Schematic

TPS61300 TPS61301 TPS61305 TPS61305A TPS61306 typ_app_fp_lvs957.gif