LTC4227CGN-2#TRPBF

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Analog Devices Inc./Maxim Integrated

DUAL IDEAL DIODE AND SINGLE HOT SWAP CONTROLLER

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LTC4227CGN-2#TRPBF

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Analog Devices Inc./Maxim Integrated

DUAL IDEAL DIODE AND SINGLE HOT SWAP CONTROLLER

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTC4227 Series

The LTC4227 offers ideal diode-OR and Hot Swap™functions for two power rails by controlling external Nchannel MOSFETs. MOSFETs acting as ideal diodes replace two high power Schottky diodes and the associated heat sinks, saving power and board area. A Hot Swap control MOSFET allows a board 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 LTC4227 regulates the forward voltage drop across the 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 switchover. If the input supply fails or is shorted, a fast turn-off minimizes reverse-current transients.The LTC4227 allows turn-on/off control, and reports fault and power good status for the supply.PartOvercurrent FaultStart-Up DelayLTC4227-1Latch Off100msLTC4227-2Retry100msLTC4227-3Latch Off1.6msLTC4227-4Retry1.6msApplicationsRedundant Power Supplies and Supply HoldupComputer Systems and ServersTelecom Networks

Technical Specifications

Parameters and characteristics for this part

Specification	LTC4227CGN-2#TRPBF

Applications	General Purpose
Current - Supply	2 mA
Features	UVLO, Auto Retry
Internal Switch(s)	No
Mounting Type	Surface Mount
Number of Channels	1
Operating Temperature (Max)	70 °C
Operating Temperature (Min)	0 °C
Package Length	0.154 in
Package Name	16-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

LTC4227 Series

Dual Ideal Diode and Single Hot Swap Controller

Part	Features	Current - Supply	Number of Channels	Package / Case	Package Length	Package Name	Package Width	Type	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Mounting Type	Operating Temperature (Min)	Operating Temperature (Max)	Applications	Internal Switch(s)	Programmable Features
Analog Devices Inc./Maxim Integrated LTC4227IUFD-3#TRPBF	Latched Fault UVLO	2 mA	1	20-WFQFN Exposed Pad	4 mm	20-QFN	5 mm	Hot Swap Controller OR Controller	18 V	2.9 V	Surface Mount	-40 °C	85 °C	General Purpose	No	Current Limit Fault Timeout Slew Rate
Analog Devices Inc./Maxim Integrated LTC4227IGN-1#TRPBF	Latched Fault UVLO	2 mA	1		0.154 in	16-SSOP	3.9 mm	Hot Swap Controller OR Controller	18 V	2.9 V	Surface Mount	-40 °C	85 °C	General Purpose	No	Current Limit Fault Timeout Slew Rate
Analog Devices Inc./Maxim Integrated LTC4227IUFD-2#PBF	Auto Retry UVLO	2 mA	1	20-WFQFN Exposed Pad	4 mm	20-QFN	5 mm	Hot Swap Controller OR Controller	18 V	2.9 V	Surface Mount	-40 °C	85 °C	General Purpose	No	Current Limit Fault Timeout Slew Rate
Analog Devices Inc./Maxim Integrated LTC4227IUFD-1#TRPBF	Latched Fault UVLO	2 mA	1	20-WFQFN Exposed Pad	4 mm	20-QFN	5 mm	Hot Swap Controller OR Controller	18 V	2.9 V	Surface Mount	-40 °C	85 °C	General Purpose	No	Current Limit Fault Timeout Slew Rate
Analog Devices Inc./Maxim Integrated LTC4227IGN-1#PBF	Latched Fault UVLO	2 mA	1		0.154 in	16-SSOP	3.9 mm	Hot Swap Controller OR Controller	18 V	2.9 V	Surface Mount	-40 °C	85 °C	General Purpose	No	Current Limit Fault Timeout Slew Rate
Analog Devices Inc./Maxim Integrated LTC4227IUFD-3#PBF	Latched Fault UVLO	2 mA	1	20-WFQFN Exposed Pad	4 mm	20-QFN	5 mm	Hot Swap Controller OR Controller	18 V	2.9 V	Surface Mount	-40 °C	85 °C	General Purpose	No	Current Limit Fault Timeout Slew Rate
Analog Devices Inc./Maxim Integrated LTC4227IGN-2#TRPBF	Auto Retry UVLO	2 mA	1		0.154 in	16-SSOP	3.9 mm	Hot Swap Controller OR Controller	18 V	2.9 V	Surface Mount	-40 °C	85 °C	General Purpose	No	Current Limit Fault Timeout Slew Rate
Analog Devices Inc./Maxim Integrated LTC4227IGN-2#PBF	Auto Retry UVLO	2 mA	1		0.154 in	16-SSOP	3.9 mm	Hot Swap Controller OR Controller	18 V	2.9 V	Surface Mount	-40 °C	85 °C	General Purpose	No	Current Limit Fault Timeout Slew Rate
Analog Devices Inc./Maxim Integrated LTC4227CUFD-2#PBF	Auto Retry UVLO	2 mA	1	20-WFQFN Exposed Pad	4 mm	20-QFN	5 mm	Hot Swap Controller OR Controller	18 V	2.9 V	Surface Mount	0 °C	70 °C	General Purpose	No	Current Limit Fault Timeout Slew Rate
Analog Devices Inc./Maxim Integrated LTC4227IUFD-4#TRPBF	Auto Retry UVLO	2 mA	1	20-WFQFN Exposed Pad	4 mm	20-QFN	5 mm	Hot Swap Controller OR Controller	18 V	2.9 V	Surface Mount	-40 °C	85 °C	General Purpose	No	Current Limit Fault Timeout Slew Rate

Pricing

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CAD

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Documents

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LTC4227CGN-2#TRPBF | Datasheet

R536 Reliability Data