SLVS977B February   2010  – July 2016 TPS61325

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  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 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1  LED High-current Regulators, Unused Inputs
      2. 9.3.2  Safety Timer Accuracy
      3. 9.3.3  Current Limit Operation
      4. 9.3.4  Start-Up Sequence
      5. 9.3.5  Power Good (Flash Ready)
      6. 9.3.6  LED Temperature Monitoring
      7. 9.3.7  Hot Die Detector
      8. 9.3.8  Undervoltage Lockout
      9. 9.3.9  Storage Capacitor Active Cell Balancing
      10. 9.3.10 RED Light Privacy Indicator
      11. 9.3.11 White LED Privacy Indicator
      12. 9.3.12 Storage Capacitor, Precharge Voltage Calibration
      13. 9.3.13 Storage Capacitor, Adaptive Precharge Voltage
      14. 9.3.14 Serial Interface Description
        1. 9.3.14.1 F/S-Mode Protocol
        2. 9.3.14.2 HS-Mode Protocol
    4. 9.4 Device Functional Modes
      1. 9.4.1  Down Mode In Voltage Regulation Mode
      2. 9.4.2  Power-Save Mode Operation, Efficiency
      3. 9.4.3  Mode Of Operation: DC-Light and Flashlight
      4. 9.4.4  Flash Strobe Is Level Sensitive (STT = 0): LED Strobe Follows STRB0 and STRB1 Inputs
      5. 9.4.5  Flash Strobe Is Leading Edge Sensitive (STT = 1): One-Shot LED Strobe
      6. 9.4.6  LED Failure Modes and Overvoltage Protection
      7. 9.4.7  Hardware Voltage Mode Selection
      8. 9.4.8  Flashlight Blanking (Tx-MASK)
      9. 9.4.9  Shutdown
      10. 9.4.10 Thermal Shutdown
    5. 9.5 Programming
      1. 9.5.1 TPS6132x I2C Update Sequence
    6. 9.6 Register Maps
      1. 9.6.1  Slave Address Byte
      2. 9.6.2  Register Address Byte
      3. 9.6.3  REGISTER0 (address = 0x00)
      4. 9.6.4  REGISTER1 (address = 0x01)
      5. 9.6.5  REGISTER2 (address = 0x02)
      6. 9.6.6  REGISTER3 (address = 0x03)
      7. 9.6.7  REGISTER4 (address = 0x04)
      8. 9.6.8  REGISTER5 (address = 0x05)
      9. 9.6.9  REGISTER6 (address = 0x06)
      10. 9.6.10 REGISTER7 (address = 0x07)
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1. 10.2.1 4100-mA Two White High-Power LED Flashlight With Storage Capacitor
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Detailed Design Procedure
          1. 10.2.1.2.1 Inductor Selection
          2. 10.2.1.2.2 Input Capacitor
          3. 10.2.1.2.3 Output Capacitor
          4. 10.2.1.2.4 NTC Selection
          5. 10.2.1.2.5 Checking Loop Stability
        3. 10.2.1.3 Application Curves
      2. 10.2.2 Other Application Circuit Examples
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
    3. 12.3 Thermal Considerations
  13. 13Device and Documentation Support
    1. 13.1 Device Support
      1. 13.1.1 Third-Party Products Disclaimer
    2. 13.2 Documentation Support
      1. 13.2.1 Related Documentation
    3. 13.3 Receiving Notification of Documentation Updates
    4. 13.4 Community Resources
    5. 13.5 Trademarks
    6. 13.6 Electrostatic Discharge Caution
    7. 13.7 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

6 Pin Configuration and Functions

YFF Package
20-Pin DSBGA
Top View

Pin Functions

PIN I/O DESCRIPTION
NAME NO.
AGND A4 — Analog ground.
AVIN E4 I 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.
GPIO/PG D4 I/O This pin can be configured as a general purpose input and output pin (GPIO), an open-drain, or a push-pull output to signal when the converters output voltage is within the regulation limits (PG). The pin is configured as an open-drain power-good output by default.
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 445 mA, 890 mA, 445 mA.
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 1025 mA, 2050 mA, 1025 mA.
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
PGND D1, D2 — Power ground. Connect to AGND underneath IC.
STRB0 B4 I LEDx enable logic input. This pin can be used to enable and disable the high-power LEDs connected to the device.
STRB0 = LOW: LEDx current regulators are turned off.
STRB0 = HIGH: LED2, LED2 and LED3 current regulators are active. The LED current level (DC-light or flashlight current) is defined according to the STRB1 logic level.
STRB1 D3 I LED current level selection input. Pulling this input high disables the DC-light watchdog timer.
STRB1 = LOW: Flashlight mode is enabled.
STRB1 = HIGH: DC-light mode is enabled.
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 and 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 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.
VOUT A2 O This is the output voltage pin of the converter.