SLDS237B January   2018  – January  2020 TPS92612-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Typical Application Diagram
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin 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 Timing Requirements
    7. 6.7 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 Device Bias
        1. 7.3.1.1 Power-On Reset (POR)
      2. 7.3.2 Constant-Current Driver
      3. 7.3.3 PWM Dimming
      4. 7.3.4 Protection
        1. 7.3.4.1 Short-to-GND Protection
        2. 7.3.4.2 Overtemperature Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Undervoltage Lockout, V(SUPPLY)< V(POR_rising)
      2. 7.4.2 Normal Operation, V(SUPPLY) ≥ 4.5 V
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Single-Channel LED Driver
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Single-Channel LED Driver With Heat Sharing
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

6.5 Electrical Characteristics

V(SUPPLY) = 5 V to 40 V, TJ = –40°C to 150°C unless otherwise noted
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
BIAS
V(POR_rising) Supply voltage POR rising threshold 3.2 4 V
V(POR_falling) Supply voltage POR falling threshold 2.2 3 V
I(Quiescent) Device standby current PWM = LOW 0.1 0.2 0.25 mA
LOGIC INPUTS (PWM)
VIL(PWM) Input logic-low voltage, PWM 1.045 1.1 1.155 V
VIH(PWM) Input logic-high voltage, PWM 1.14 1.2 1.26 V
CONSTANT-CURRENT DRIVER
I(OUT) Device output-current range 100% duty cycle 4 150 mA
V(CS_REG) Sense-resistor regulation voltage TA = 25°C, V(SUPPLY) = 4.5 V to 18 V 94 98 102 mV
TA = –40°C to 125°C, V(SUPPLY) = 4.5 V to 18 V 93.5 98 102.5
R(CS_REG) Sense-resistor value 24.5 Ω
V(DROPOUT) Voltage dropout from SUPPLY to OUT V(CS_REG) voltage included, current setting = 10 mA 120 150 mV
V(CS_REG) voltage included, current setting = 70 mA 250 400
V(CS_REG) voltage included, current setting = 150 mA 430 700
DIAGNOSTICS
V(SG_th_falling) Channel output V(OUT) short-to-ground falling threshold 1.14 1.2 1.26 V
V(SG_th_rising) Channel output V(OUT) short-to-ground rising threshold 0.82 0.865 0.91 V
I(Retry) Channel output V(OUT) short-to-ground retry current V(OUT)= 0 V 0.64 1.08 1.528 mA
THERMAL PROTECTION
T(TSD) Thermal shutdown junction temperature threshold 172 °C
T(TSD_HYS) Thermal shutdown junction temperature hysteresis 15 °C