Current Limit Foldback Improves Short Circuit Protection in LM274X Family (Rev. B)

Texas Instruments

Published Date: 04/23/2013

Description

This application report discusses the function of the low side current limit used in the LM274X andpresents a simple method to enhance the short-circuit protection. the current limit is required to protect thepower components from thermal stress which can reduce life span. Typically high side current limitdesigns require an internal rising edge blanking time or external filter to avoid no

Parts

Part Number Name Companion Part
LM2742MTC/NOPB LM2742MTC/NOPB Buy Datasheet
LM2743MTC LM2743MTC Buy Datasheet
LM2743MTCX LM2743MTCX Buy Datasheet
LM2744MTC/NOPB LM2744MTC/NOPB Buy Datasheet
LM2744MTCX/NOPB LM2744MTCX/NOPB Buy Datasheet
LM2745MTCX/NOPB LM2745MTCX/NOPB Buy Datasheet