LTC4227IUFD-2#TRPBF

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Analog Devices

DUAL IDEAL DIODE AND SINGLE HOT SWAP CONTROLLER

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LTC4227IUFD-2#TRPBF

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Analog Devices

DUAL IDEAL DIODE AND SINGLE HOT SWAP CONTROLLER

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Technical Specifications

Parameters and characteristics for this part

Specification	LTC4227IUFD-2#TRPBF

Applications	General Purpose
Current - Supply	2 mA
Features	UVLO, Auto Retry
Internal Switch(s)	False
Mounting Type	Surface Mount
Number of Channels	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	20-WFQFN Exposed Pad
Programmable Features	Slew Rate, Current Limit, Fault Timeout
Supplier Device Package	20-QFN (4x5)
Type	Hot Swap Controller, OR Controller
Voltage - Supply [Max]	18 V
Voltage - Supply [Min]	2.9 V

LTC4227 Series

Dual Ideal Diode and Single Hot Swap Controller

Part	Supplier Device Package	Programmable Features	Applications	Operating Temperature [Max]	Operating Temperature [Min]	Features	Current - Supply	Voltage - Supply [Min]	Voltage - Supply [Max]	Type	Mounting Type	Package / Case	Number of Channels	Package / Case	Package / Case	Internal Switch(s)
Analog Devices LTC4227IUFD-3#TRPBF	20-QFN (4x5)	Current Limit Fault Timeout Slew Rate	General Purpose	85 °C	-40 °C	Latched Fault UVLO	2 mA	2.9 V	18 V	Hot Swap Controller OR Controller	Surface Mount	20-WFQFN Exposed Pad	1
Analog Devices LTC4227IGN-1#TRPBF	16-SSOP	Current Limit Fault Timeout Slew Rate	General Purpose	85 °C	-40 °C	Latched Fault UVLO	2 mA	2.9 V	18 V	Hot Swap Controller OR Controller	Surface Mount	16-SSOP	1	0.154 in	3.9 mm
Analog Devices LTC4227IUFD-2#PBF	20-QFN (4x5)	Current Limit Fault Timeout Slew Rate	General Purpose	85 °C	-40 °C	Auto Retry UVLO	2 mA	2.9 V	18 V	Hot Swap Controller OR Controller	Surface Mount	20-WFQFN Exposed Pad	1
Analog Devices LTC4227IGN-2#PBF	16-SSOP	Current Limit Fault Timeout Slew Rate	General Purpose	85 °C	-40 °C	Auto Retry UVLO	2 mA	2.9 V	18 V	Hot Swap Controller OR Controller	Surface Mount	16-SSOP	1	0.154 in	3.9 mm
Analog Devices LTC4227CGN-2#TRPBF	16-SSOP	Current Limit Fault Timeout Slew Rate	General Purpose	70 °C	0 °C	Auto Retry UVLO	2 mA	2.9 V	18 V	Hot Swap Controller OR Controller	Surface Mount	16-SSOP	1	0.154 in	3.9 mm
Analog Devices LTC4227IUFD-4#PBF	20-QFN (4x5)	Current Limit Fault Timeout Slew Rate	General Purpose	85 °C	-40 °C	Auto Retry UVLO	2 mA	2.9 V	18 V	Hot Swap Controller OR Controller	Surface Mount	20-WFQFN Exposed Pad	1
Analog Devices LTC4227IUFD-4#PBF	20-QFN (4x5)	Current Limit Fault Timeout Slew Rate	General Purpose	85 °C	-40 °C	Auto Retry Fault Timeout UVLO	2 mA	2.9 V	18 V	Hot Swap Controller OR Controller	Surface Mount	20-WFQFN Exposed Pad	1			Both
Analog Devices LTC4227CUFD-3#PBF	20-QFN (4x5)	Current Limit Fault Timeout Slew Rate	General Purpose	70 °C	0 °C	Latched Fault UVLO	2 mA	2.9 V	18 V	Hot Swap Controller OR Controller	Surface Mount	20-WFQFN Exposed Pad	1
Analog Devices LTC4227IUFD-2#TRPBF	20-QFN (4x5)	Current Limit Fault Timeout Slew Rate	General Purpose	85 °C	-40 °C	Auto Retry UVLO	2 mA	2.9 V	18 V	Hot Swap Controller OR Controller	Surface Mount	20-WFQFN Exposed Pad	1

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	2500	$ 5.60

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

LTC4227IUFD-2#TRPBF

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LTC4227IUFD-2#TRPBF

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LTC4227 Series

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Description

LTC4227 Series

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LTC4227 Series