LTC4225IGN-2#TRPBF

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Analog Devices Inc./Maxim Integrated

HOT SWAP CONTROLLER 2-CH 18V N-CHANNEL POSITIVE LOW VOLTAGE 24-PIN SSOP N T/R

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LTC4225IGN-2#TRPBF

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Analog Devices Inc./Maxim Integrated

HOT SWAP CONTROLLER 2-CH 18V N-CHANNEL POSITIVE LOW VOLTAGE 24-PIN SSOP N T/R

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTC4225-1LTC4225-2 Series

The LTC4225 offers ideal diode and Hot Swap™functions for two power rails by controlling external series connected N-channel MOSFETs. MOSFETs acting as ideal diodes replace two high power Schottky diodes and the associated heat sinks, saving power and board area. Hot Swap control MOSFETs allow boards to be safely inserted and removed from a live backplane by limiting inrush current. The supply output is also protected against short-circuit faults with a fast acting current limit and internal timed circuit breaker.The LTC4225 regulates the forward voltage drop across the back-to-back MOSFETs to ensure smooth current transfer from one supply to the other without oscillation. The ideal diodes turn on quickly to reduce the load voltage droop during supply switch-over. If the input supply fails or is shorted, a fast turn-off minimizes reverse-current transients.The LTC4225 allows independent on/off control, and reports fault and power good status for the supply. The LTC4225-1 features a latch-off circuit breaker, while the LTC4225-2 provides automatic retry after a fault.ApplicationsRedundant Power SuppliesSupply HoldupMicroTCA Systems and ServersTelecom NetworksPower Prioritizer

Technical Specifications

Parameters and characteristics for this part

Specification	LTC4225IGN-2#TRPBF

Applications	General Purpose
Current - Supply	2.8 mA
Features	UVLO, Auto Retry
Internal Switch(s)	No
Mounting Type	Surface Mount
Number of Channels	2
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Package Length	0.154 in
Package Name	24-SSOP
Package Width	3.9 mm
Programmable Features	Fault Timeout, Slew Rate, Current Limit
Type	OR Controller, Hot Swap Controller
Voltage - Supply (Maximum)	18 V
Voltage - Supply (Minimum)	2.9 V

LTC4225-1LTC4225-2 Series

Part	Features	Current - Supply	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Applications	Operating Temperature (Min)	Operating Temperature (Max)	Number of Channels	Programmable Features	Internal Switch(s)	Package / Case	Mounting Type	Package Length	Package Name	Package Width	Type
Analog Devices Inc./Maxim Integrated LTC4225IUFD-1#PBF	Latched Fault UVLO	2.8 mA	18 V	2.9 V	General Purpose	-40 °C	85 °C	2	Current Limit Fault Timeout Slew Rate	No	24-WFQFN Exposed Pad	Surface Mount	4 mm	24-QFN	5 mm	Hot Swap Controller OR Controller
Analog Devices Inc./Maxim Integrated LTC4225CUFD-1#PBF	Latched Fault UVLO	2.8 mA	18 V	2.9 V	General Purpose	0 °C	70 °C	2	Current Limit Fault Timeout Slew Rate	No	24-WFQFN Exposed Pad	Surface Mount	4 mm	24-QFN	5 mm	Hot Swap Controller OR Controller
Analog Devices Inc./Maxim Integrated LTC4225CUFD-1#PBF	Latched Fault UVLO	2.8 mA	18 V	2.9 V	General Purpose	0 °C	70 °C	2	Current Limit Fault Timeout Slew Rate	No	24-WFQFN Exposed Pad	Surface Mount	4 mm	24-QFN	5 mm	Hot Swap Controller OR Controller
Analog Devices Inc./Maxim Integrated LTC4225CGN-1#TRPBF	Latched Fault UVLO	2.8 mA	18 V	2.9 V	General Purpose	0 °C	70 °C	2	Current Limit Fault Timeout Slew Rate	No		Surface Mount	0.154 in	24-SSOP	3.9 mm	Hot Swap Controller OR Controller
Analog Devices Inc./Maxim Integrated LTC4225IUFD-2#PBF	Auto Retry UVLO	2.8 mA	18 V	2.9 V	General Purpose	-40 °C	85 °C	2	Current Limit Fault Timeout Slew Rate	No	24-WFQFN Exposed Pad	Surface Mount	4 mm	24-QFN	5 mm	Hot Swap Controller OR Controller
Analog Devices Inc./Maxim Integrated LTC4225CGN-2#PBF	Auto Retry UVLO	2.8 mA	18 V	2.9 V	General Purpose	0 °C	70 °C	2	Current Limit Fault Timeout Slew Rate	No		Surface Mount	0.154 in	24-SSOP	3.9 mm	Hot Swap Controller OR Controller
Analog Devices Inc./Maxim Integrated LTC4225CUFD-1#TRPBF	Latched Fault UVLO	2.8 mA	18 V	2.9 V	General Purpose	0 °C	70 °C	2	Current Limit Fault Timeout Slew Rate	No	24-WFQFN Exposed Pad	Surface Mount	4 mm	24-QFN	5 mm	Hot Swap Controller OR Controller
Analog Devices Inc./Maxim Integrated LTC4225CGN-2#TRPBF	Auto Retry UVLO	2.8 mA	18 V	2.9 V	General Purpose	0 °C	70 °C	2	Current Limit Fault Timeout Slew Rate	No		Surface Mount	0.154 in	24-SSOP	3.9 mm	Hot Swap Controller OR Controller
Analog Devices Inc./Maxim Integrated LTC4225IGN-1#TRPBF	Latched Fault UVLO	2.8 mA	18 V	2.9 V	General Purpose	-40 °C	85 °C	2	Current Limit Fault Timeout Slew Rate	No		Surface Mount	0.154 in	24-SSOP	3.9 mm	Hot Swap Controller OR Controller
Analog Devices Inc./Maxim Integrated LTC4225IUFD-1#TRPBF	Latched Fault UVLO	2.8 mA	18 V	2.9 V	General Purpose	-40 °C	85 °C	2	Current Limit Fault Timeout Slew Rate	No	24-WFQFN Exposed Pad	Surface Mount	4 mm	24-QFN	5 mm	Hot Swap Controller OR Controller

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CAD

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Documents

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LTC4225IGN-2#TRPBF | Datasheet

R536 Reliability Data