Hotswap Design Using TPS2490/91 and MOSFET Transient Thermal Response

Texas Instruments

Published Date: 07/21/2004

Description

Hotswap circuits rely on the thermal capacitance of the series-limiting MOSFET to dissipate the large transient energy under current- or power-limit operation. The peakjunction temperature must be controlled in order to achieve a robust design. The constant-power MOSFET protection of the TPS2490 provides a simple method to useinformation provided by MOSFET manufacturers to determine peak junct

Parts

Part Number Name Companion Part
TPS2490DGS TPS2490DGS Buy Datasheet
TPS2491DGS TPS2491DGS Buy Datasheet
TPS2491DGSG4 TPS2491DGSG4 Buy Datasheet