LTC1422 Series

Hot Swap Controller

Catalog

Hot Swap Controller

Part	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Package / Case [y]	Package / Case [x]	Applications	Number of Channels	Internal Switch(s)	Current - Supply	Features	Mounting Type	Type	Supplier Device Package	Programmable Features	Voltage - Supply [Min]	Voltage - Supply [Max]
Analog Devices LTC1422CS8#PBF	70 °C	0 °C	8-SOIC	3.9 mm	0.154 in	General Purpose	1		650 µA	Auto Retry UVLO	Surface Mount	Hot Swap Controller	8-SO	Circuit Breaker Fault Timeout Slew Rate	2.7 V	12 V
Analog Devices LTC1422IS8#PBF	85 °C	-40 °C	8-SOIC	3.9 mm	0.154 in	General Purpose	1		650 µA	Auto Retry UVLO	Surface Mount	Hot Swap Controller	8-SO	Circuit Breaker Fault Timeout Slew Rate	2.7 V	12 V

Catalog

Hot Swap Controller

Key Features

• Allows Safe Board Insertion and Removal from a Live Backplane

• System Reset Output with Programmable Delay

• Programmable Electronic Circuit Breaker

• User-Programmable Supply Voltage Power-Up Rate

• High Side Driver for an External N-Channel FET

• Controls Supply Voltages from 2.7V to 12V

• Undervoltage Lockout

• Soft Reset Input

• Glitch Filter onRESET

Description

The LTC1422 is an 8-pin Hot Swap™controller that allows a board to be safely inserted and removed from a live backplane. Using an external N-channel pass transistor, the board supply voltage can be ramped up at a programmable rate. A high side switch driver controls the N-channel gate for supply voltages ranging from 2.7V to 12V.A programmable electronic circuit breaker protects against shorts. TheRESEToutput can be used to generate a system reset when the supply voltage falls below a programmable voltage. The ON pin can be used to cycle the board power or to generate a soft reset.The LTC1422 is available in 8-pin PDIP and SO packages.ApplicationsHot Board InsertionElectronic Circuit Breaker