SNOSD87A
July 2021 – February 2022
LM74501-Q1
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Switching Characteristics
6.7
Typical Characteristics
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Input Voltage
8.3.2
Charge Pump
8.3.3
Enable
8.3.4
Gate Driver
8.3.5
SW (Battery Voltage Monitoring)
8.3.6
Gate Discharge Timer
8.4
Device Functional Modes
8.4.1
Shutdown Mode
8.4.2
Full Conduction Mode
8.4.3
VDS Clamp
9
Application and Implementation
9.1
Application Information
9.1.1
Reverse Battery Protection
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Design Considerations
9.2.2.2
MOSFET Selection
9.2.2.3
Gate Discharge Timer Capacitor Selection (CT)
9.2.2.4
Charge Pump VCAP, Input and Output Capacitance
9.2.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Device Support
12.1.1
Third-Party Products Disclaimer
12.2
Receiving Notification of Documentation Updates
12.3
Support Resources
12.4
Trademarks
12.5
Electrostatic Discharge Caution
12.6
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DDF|8
MPDS569D
Thermal pad, mechanical data (Package|Pins)
Orderable Information
snosd87a_oa
snosd87a_pm
9.2
Typical Application
Figure 9-2
Typical Application Circuit