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

6 Pin Configuration and Functions

TPS61300
YFF Package
20-Pin DSBGA
Top View
TPS61305 and TPS61305A
YFF Package
20-Pin DSBGA
Top View
TPS61301
YFF Package
20-Pin DSBGA
Top View
TPS61306
YFF Package
20-Pin DSBGA
Top View

Table 2. Pin Functions

PIN I/O DESCRIPTION
NAME NO.
AGND A4 — Analog ground.
AVIN E4 I This is the input voltage pin of the device. Connect directly to the input bypass capacitor.
BAL A3 O Balancing output for dual cells super-capacitor. In steady-state operation, this output compensates for leakage current mismatch between the cells.
ENDCL(1) D3 I Hardware control pin for DC light operation. Pulling this pin high forces the device into DC light operation. The ENDCL input is only active when the device is programmed into shutdown or voltage mode regulation. LED1–3 inputs are controlled according to ENLED[3:1] bit settings.
ENVM(2) C4 I Enable pin for voltage mode converter. Pulling this pin high forces the device into voltage regulation mode (VOUT is preset to a fixed value, 4.95 V).
FLASH_SYNC B4 I Flashlight strobe pulse synchronization input.
FLASH_SYNC = LOW: The device is operating and regulating the LED current to the DC light current level (DCLC).
FLASH_SYNC = HIGH: The device is operating and regulating the LED current to the flashlight current level (FC).
GPIO/PG D4 I/O This pin can either be configured as a general purpose input/output pin (GPIO) or either as an open-drain or a push-pull output to signal when the converters output voltage is within the regulation limits (PG). Per default, the pin is configured as an open-drain power-good output.
HC_SEL B3 I Extended high-current mode selection input. This pin must not be left floating and must be terminated.
HC_SEL = LOW: LED direct drive mode. The power stage is active and the maximum LED currents are defined as 400 mA (ILED1), 800 mA (ILED2), and 400 mA (ILED3).
HC_SEL = HIGH: Energy storage mode. In flash mode, the power stage is either active with reduced current capability or disabled. The maximum LED current is defined as 925 mA (ILED1), 1850 mA (ILED2), and 925 mA (ILED3).
INDLED A1 O This pin provides a constant current source to drive low VF LEDs. Connect to LED anode.
LED1 E2 I LED return input. This feedback pin regulates the LED current through the internal sense resistor by regulating the voltage across it. The regulation operates with typically 400-mV (HC_SEL = L) or 400-mV (HC_SEL = H) dropout voltage. Connect to the cathode of the LEDs.
LED2 E1 I
LED3 E3 I
NRESET(3) D3 I Master hardware reset input. NRESET = LOW: The device is forced in shutdown mode and the I2C control I/F is reset. NRESET = HIGH: The device is operating normally under the control of the I2C interface.
PGND D1, D2 — Power ground. Connect to AGND underneath IC.
SCL B2 I Serial interface clock line. This pin must not be left floating and must be terminated.
SDA B1 I/O Serial interface address/data line. This pin must not be left floating and must be terminated.
SW C1, C2 I/O Inductor connection. Drain of the internal power MOSFET. Connect to the switched side of the inductor. SW is high impedance during shutdown.
TS(4) C4 I/O NTC resistor connection. This pin can be used to monitor the LED temperature. Connect a 220-kΩ NTC resistor from the TS input to ground. In case this functionality is not desired, the TS input must be tied to AVIN or left floating.
Tx-MASK C3 I RF PA synchronization control input. Pulling this pin high turns the LED from flashlight to DC light operation, thereby reducing almost instantaneously the peak current loading from the battery.
VOUT A2 O This is the output voltage pin of the converter.
(1) Applicable to the TPS61300 and TPS61306 only.
(2) Applicable to the TPS61300 and TPS61301 only.
(3) Applicable to the TPS61301 and TPS61305A only.
(4) Applicable to the TPS61305A and TPS61306 only.