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LM7480-Q1 Evaluation Module for Unsuppressed Load Dump Protection: LM74800EVM-CS
SLVUBU4
March 2021
CONTENTS
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LM7480-Q1 Evaluation Module for Unsuppressed Load Dump Protection: LM74800EVM-CS
Trademarks
1
Introduction
1.1
Features
1.2
Applications
2
Description
2.1
Input Power and Load (J1/J3 and J2/J4):
2.2
Enable Control (J5):
2.3
Over Voltage Protection (J6):
2.4
Two Back-Back Connected MOSFETs (Q1/Q3 and Q2):
2.5
Output Slew Rate Control (R2 and C4):
2.6
Output Schottky Diode (D3) and LED Indication:
2.7
TVS Selection for 200-V Unsuppressed Load Dump Protection:
2.8
Test Points:
3
Schematic
4
Test Equipment Requirements
4.1
Power Supplies
4.2
Meters
4.3
Oscilloscope
4.4
Loads
5
Test Setup and Results
5.1
Initial Setup
5.2
Power Up
5.3
200-V Unsuppressed Load Dump Protection
5.4
ISO 7637-2 Pulse 1 –600 V 50 Ω
6
Board Layout and Bill of Materials
6.1
Board Layout
6.2
Bill of Materials
Revision History
IMPORTANT NOTICE
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