SNOSDE6C December   2022  – August 2025 LM74900-Q1 , LM74910-Q1 , LM74910H-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 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. 6.7 Typical Characteristics
  8. 7 Parameter Measurement Information
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Charge Pump
      2. 8.3.2 Dual Gate Control (DGATE, HGATE)
        1. 8.3.2.1 Reverse Battery Protection (A, C, DGATE)
        2. 8.3.2.2 Load Disconnect Switch Control (HGATE, OUT)
      3. 8.3.3 Overcurrent Protection (CS+, CS-, ILIM, IMON, TMR)
        1. 8.3.3.1 Pulse Overload Protection, Circuit Breaker
        2. 8.3.3.2 Overcurrent Protection With Latch-Off
        3. 8.3.3.3 Short Circuit Protection (ISCP)
        4. 8.3.3.4 Analog Current Monitor Output (IMON)
      4. 8.3.4 Undervoltage Protection, Overvoltage Protection, and Battery Voltage Sensing (UVLO, OV, SW)
    4. 8.4 Device Functional Modes
      1. 8.4.1 Ultra Low IQ Shutdown (EN)
      2. 8.4.2 Low IQ SLEEP Mode (SLEEP)
  10. 9 Applications and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical 12V Reverse Battery Protection Application
      1. 9.2.1 Design Requirements for 12V Battery Protection
      2. 9.2.2 Automotive Reverse Battery Protection
        1. 9.2.2.1 Input Transient Protection: ISO 7637-2 Pulse 1
        2. 9.2.2.2 AC Super Imposed Input Rectification: ISO 16750-2 and LV124 E-06
        3. 9.2.2.3 Input Micro-Short Protection: LV124 E-10
      3. 9.2.3 Detailed Design Procedure
        1. 9.2.3.1 Design Considerations
        2. 9.2.3.2 Charge Pump Capacitance VCAP
        3. 9.2.3.3 Input and Output Capacitance
        4. 9.2.3.4 Hold-Up Capacitance
        5. 9.2.3.5 Selection of Current Sense Resistor, RSNS
        6. 9.2.3.6 Selection of Scaling Resistor (RSET) and Short-Circuit Protection Setting Resistor (RSCP)
        7. 9.2.3.7 Overcurrent Limit (ILIM), Circuit Breaker Timer (TMR), and Current Monitoring Output (IMON) Selection
        8. 9.2.3.8 Overvoltage Protection and Battery Monitor
      4. 9.2.4 MOSFET Selection: Blocking MOSFET Q1
      5. 9.2.5 MOSFET Selection: Hot-Swap MOSFET Q2
      6. 9.2.6 TVS Selection
      7. 9.2.7 Application Curves
    3. 9.3 Addressing Automotive Input Reverse Battery Protection Topologies With LM749x0-Q1
    4. 9.4 Power Supply Recommendations
      1. 9.4.1 Transient Protection
      2. 9.4.2 TVS Selection for 12V Battery Systems
    5. 9.5 Layout
      1. 9.5.1 Layout Guidelines
      2. 9.5.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Third-Party Products Disclaimer
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • RGE|24
Thermal pad, mechanical data (Package|Pins)
Orderable Information

9.2.7 Application Curves

LM74900-Q1 LM74910-Q1 LM74910H-Q1 Start-Up 12V With EN Pulled to VSFigure 9-6 Start-Up 12V With EN Pulled to VS
LM74900-Q1 LM74910-Q1 LM74910H-Q1 Reverse Input Voltage –14VFigure 9-8 Reverse Input Voltage –14V
LM74900-Q1 LM74910-Q1 LM74910H-Q1 Output Short Circuit Protection (On-The-Fly)Figure 9-10 Output Short Circuit Protection (On-The-Fly)
LM74900-Q1 LM74910-Q1 LM74910H-Q1 Output Overcurrent Protection (TIMER Duration 1ms)Figure 9-12 Output Overcurrent Protection (TIMER Duration 1ms)
LM74900-Q1 LM74910-Q1 LM74910H-Q1 Overvoltage ProtectionFigure 9-14 Overvoltage Protection
LM74900-Q1 LM74910-Q1 LM74910H-Q1 Overvoltage Clamp Response (OV Resistor Ladder Referred to VOUT)Figure 9-16 Overvoltage Clamp Response (OV Resistor Ladder Referred to VOUT)
LM74900-Q1 LM74910-Q1 LM74910H-Q1 Undervoltage Lockout (UVLO) RecoveryFigure 9-18 Undervoltage Lockout (UVLO) Recovery
LM74900-Q1 LM74910-Q1 LM74910H-Q1 LM74900-Q1, LM74910-Q1 SLEEP Mode Overcurrent Protection (250mA Typical)Figure 9-20 LM74900-Q1, LM74910-Q1 SLEEP Mode Overcurrent Protection (250mA Typical)
LM74900-Q1 LM74910-Q1 LM74910H-Q1 LM74910H-Q1 SLEEP Mode 500mA Short Transient Load StepFigure 9-22 LM74910H-Q1 SLEEP Mode 500mA Short Transient Load Step
LM74900-Q1 LM74910-Q1 LM74910H-Q1 LM74910H-Q1 SLEEP Mode Input Voltage Step (VIN = 12V-16V, COUT = 1.1mF)Figure 9-24 LM74910H-Q1 SLEEP Mode Input Voltage Step (VIN = 12V-16V, COUT = 1.1mF)
LM74900-Q1 LM74910-Q1 LM74910H-Q1 Load Transient 100mA to 5AFigure 9-26 Load Transient 100mA to 5A
LM74900-Q1 LM74910-Q1 LM74910H-Q1 Start-Up 12V With EN Going Low to HighFigure 9-7 Start-Up 12V With EN Going Low to High
LM74900-Q1 LM74910-Q1 LM74910H-Q1 Inrush Current With No Load at OutputFigure 9-9 Inrush Current With No Load at Output
LM74900-Q1 LM74910-Q1 LM74910H-Q1 Device Start-Up With Output Short Circuit (TIMER Duration 1ms)Figure 9-11 Device Start-Up With Output Short Circuit (TIMER Duration 1ms)
LM74900-Q1 LM74910-Q1 LM74910H-Q1 Output Overcurrent Protection (TIMER Duration 1ms): Auto RetryFigure 9-13 Output Overcurrent Protection (TIMER Duration 1ms): Auto Retry
LM74900-Q1 LM74910-Q1 LM74910H-Q1 Overvoltage RecoveryFigure 9-15 Overvoltage Recovery
LM74900-Q1 LM74910-Q1 LM74910H-Q1 Undervoltage Lockout (UVLO) Protection (VIN_UVLO = 5.5V)Figure 9-17 Undervoltage Lockout (UVLO) Protection (VIN_UVLO = 5.5V)
LM74900-Q1 LM74910-Q1 LM74910H-Q1 SLEEP Mode Entry (SLEEP = Low, EN = High)Figure 9-19 SLEEP Mode Entry (SLEEP = Low, EN = High)
LM74900-Q1 LM74910-Q1 LM74910H-Q1 SLEEP Mode Exit (SLEEP = High, EN = High)Figure 9-21 SLEEP Mode Exit (SLEEP = High, EN = High)
LM74900-Q1 LM74910-Q1 LM74910H-Q1 LM74910H-Q1 SLEEP Mode 500mA Long Transient Load StepFigure 9-23 LM74910H-Q1 SLEEP Mode 500mA Long Transient Load Step
LM74900-Q1 LM74910-Q1 LM74910H-Q1 LM74910H-Q1 Device Startup Into SLEEP ModeFigure 9-25 LM74910H-Q1 Device Startup Into SLEEP Mode