SNOSDB7
December 2020
LM74500-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
7
Typical Characteristics
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
Gate Driver
8.3.4
Enable
8.4
Device Functional Modes
8.4.1
Shutdown Mode
8.4.2
Conduction Mode
9
Application and Implementation
9.1
Reverse Battery Protection for Automotive Body Control Module Applications
9.2
Reverse Polarity Protection
9.3
Application Information
9.3.1
Typical Application
9.3.1.1
Design Requirements
9.3.1.2
Detailed Design Procedure
9.3.1.2.1
Design Considerations
9.3.1.2.2
MOSFET Selection
9.3.1.2.3
Charge Pump VCAP, Input and Output Capacitance
9.3.1.3
Selection of TVS Diodes for 12-V Battery Protection Applications
9.3.1.4
Selection of TVS Diodes and MOSFET for 24-V Battery Protection Applications
9.3.1.5
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Receiving Notification of Documentation Updates
12.2
Support Resources
12.3
Trademarks
12.4
Electrostatic Discharge Caution
12.5
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DDF|8
MPDS569D
Thermal pad, mechanical data (Package|Pins)
Orderable Information
snosdb7_oa
snosdb7_pm
7
Typical Characteristics
Figure 7-1
Shutdown Supply Current vs Supply Voltage
Figure 7-3
Charge Pump Current vs Supply Voltage at V
CAP
= 6 V
Figure 7-5
Charge Pump V-I Characteristics at V
SOURCE
= 3.2 V
Figure 7-7
Enable to Gate Delay vs Temperature
Figure 7-9
Charge Pump UVLO Threshold vs Temperature
Figure 7-2
Operating Quiescent Current vs Supply Voltage
Figure 7-4
Charge Pump V-I Characteristics at V
SOURCE
> = 12 V
Figure 7-6
Enable Rising and Falling threshold vs Temperature
Figure 7-8
Charge Pump ON/OFF Threshold vs Temperature
Figure 7-10
V
SOURCE
POR Threshold vs Temperature