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
6.6
Switching Characteristics
T
J
= –40°C to +125°C; typical values at T
J
= 25°C, V
(SOURCE)
= 12 V, C
IN
= C
(VCAP)
= C
OUT
= 0.1 µF, V
(EN)
= 3.3 V, over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
EN
TDLY
Enable (low to high) to Gate Turn On delay
V
(VCAP)
> V
(VCAP UVLOR)
75
110
µs