SNOSDB7 December   2020 LM74500-Q1

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 Switching Characteristics
  7. 7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Input Voltage
      2. 8.3.2 Charge Pump
      3. 8.3.3 Gate Driver
      4. 8.3.4 Enable
    4. 8.4 Device Functional Modes
      1. 8.4.1 Shutdown Mode
      2. 8.4.2 Conduction Mode
  9. 9 Application and Implementation
    1. 9.1 Reverse Battery Protection for Automotive Body Control Module Applications
    2. 9.2 Reverse Polarity Protection
    3. 9.3 Application Information
      1. 9.3.1 Typical Application
        1. 9.3.1.1 Design Requirements
        2. 9.3.1.2 Detailed Design Procedure
          1. 9.3.1.2.1 Design Considerations
          2. 9.3.1.2.2 MOSFET Selection
          3. 9.3.1.2.3 Charge Pump VCAP, Input and Output Capacitance
        3. 9.3.1.3 Selection of TVS Diodes for 12-V Battery Protection Applications
        4. 9.3.1.4 Selection of TVS Diodes and MOSFET for 24-V Battery Protection Applications
        5. 9.3.1.5 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Support 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

6.5 Electrical Characteristics

TJ = –40°C to +125°C; typical values at TJ = 25°C, V(SOURCE) = 12 V, C(VCAP) = 0.1 µF, V(EN) = 3.3 V, over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VSOURCE SUPPLY VOLTAGE
V(SOURCE) Operating input voltage 4 60 V
V(SOURCE POR) VSOURCE POR Rising threshold 3.9 V
VSOURCE POR Falling threshold 2.2 2.8 3.1 V
V(SOURCE POR(Hys)) VSOURCE POR Hysteresis 0.44 0.67 V
I(SHDN) Shutdown Supply Current V(EN) = 0 V 0.9 1.5 µA
I(Q) Operating Quiescent Current 80 130 µA
ENABLE INPUT
V(EN_IL) Enable input low threshold 0.5 0.9 1.22 V
V(EN_IH) Enable input high threshold 1.06 2 2.6
V(EN_Hys) Enable Hysteresis 0.52 1.35 V
I(EN) Enable sink current V(EN) = 12 V 3 5 µA
GATE DRIVE
I(GATE) Peak source current V(GATE) – V(SOURCE) = 5 V 3 11 mA
Peak sink current EN= High to Low
V(GATE) – V(SOURCE) = 5 V		 2370 mA
RDSON discharge switch RDSON EN = High to Low
V(GATE) – V(SOURCE) = 100 mV		 0.4 2 Ω
CHARGE PUMP
I(VCAP) Charge Pump source current (Charge pump on) V(VCAP) – V(SOURCE) = 7 V 162 300 600 µA
Charge Pump sink current (Charge pump off) V(VCAP) – V(SOURCE) = 14 V 5 10 µA
V(VCAP) – V(SOURCE) Charge pump voltage at V(SOURCE) = 3.2 V I(VCAP) ≤ 30 µA 8 V
V(VCAP) – V(SOURCE) Charge pump turn on voltage 10.3 11.6 13 V
V(VCAP) – V(SOURCE) Charge pump turn off voltage 11 12.4 13.9 V
V(VCAP) – V(SOURCE) Charge Pump Enable comparator Hysteresis 0.4 0.8 1.2 V
V(VCAP UVLO) V(VCAP) – V(SOURCE)  UV release at rising edge 5.7 6.5 7.5 V
V(VCAP UVLO) V(VCAP) – V(SOURCE) UV threshold at falling edge 5.05 5.4 6.2 V