LTC4231HMS-1#WTRPBF

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Analog Devices Inc./Maxim Integrated

MICROPOWER HOT SWAP CONTROLLER

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LTC4231HMS-1#WTRPBF

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Analog Devices Inc./Maxim Integrated

MICROPOWER HOT SWAP CONTROLLER

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTC4231 Series

The LTC4231 is a micropower Hot Swap controller that allows safe circuit board insertion and removal from a live power supply. An internal high side switch driver controls the gate of an external N-channel MOSFET. Back-to-back MOSFETs can be used for reverse supply protection down to –40V.The LTC4231 provides a debounce delay and allows the GATE to be ramped up at an adjustable rate. After startup, the LTC4231's quiescent current drops to 4µA during normal operation with output active. UVL, UVH, OV and GNDSW monitor overvoltage and undervoltage periodically, keeping total quiescent current low. PullingSHDNlow shuts down the LTC4231 and quiescent current drops to 0.3µA.During an overcurrent fault, the LTC4231 actively limits current while running an adjustable timer. The LTC4231-1 remains off after a current fault while the LTC4231-2 automatically reapplies power after a cool-down period.ApplicationsBattery Powered EquipmentSolar Powered SystemsPortable InstrumentsAutomotive Battery ProtectionEnergy Harvesting

Technical Specifications

Parameters and characteristics for this part

Specification	LTC4231HMS-1#WTRPBF

Applications	General Purpose
Features	Latched Fault
Grade	Automotive
Internal Switch(s)	No
Mounting Type	Surface Mount
Number of Channels	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Package Length	0.118 in
Package Name	12-TSSOP, 12-MSOP
Package Width	3 mm
Programmable Features	Slew Rate, Fault Timeout, Circuit Breaker, Current Limit, OVP, UVLO
Qualification	AEC-Q100
Type	Hot Swap Controller
Voltage - Supply (Maximum)	36 VDC
Voltage - Supply (Minimum)	2.7 V

LTC4231 Series

Part	Applications	Programmable Features	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Type	Operating Temperature (Max)	Operating Temperature (Min)	Grade	Number of Channels	Package Name	Package Length	Package Width	Mounting Type	Internal Switch(s)	Qualification	Features	Current - Supply	Package / Case
Analog Devices Inc./Maxim Integrated LTC4231HMS-1#WPBF	General Purpose	Circuit Breaker Current Limit Fault Timeout OVP Slew Rate UVLO	36 VDC	2.7 V	Hot Swap Controller	125 °C	-40 °C	Automotive	1	12-MSOP 12-TSSOP	0.118 in	3 mm	Surface Mount	No	AEC-Q100	Latched Fault
Analog Devices Inc./Maxim Integrated LTC4231HMS-2#WPBF	General Purpose	Circuit Breaker Current Limit Fault Timeout OVP Slew Rate UVLO	36 VDC	2.7 V	Hot Swap Controller	125 °C	-40 °C	Automotive	1	12-MSOP 12-TSSOP	0.118 in	3 mm	Surface Mount	No	AEC-Q100	Auto Retry
Analog Devices Inc./Maxim Integrated LTC4231IMS-1#TRPBF	General Purpose	Circuit Breaker Current Limit Fault Timeout OVP Slew Rate UVLO	36 VDC	2.7 V	Hot Swap Controller	85 °C	-40 °C		1	12-MSOP 12-TSSOP	0.118 in	3 mm	Surface Mount	No		Latched Fault	4 µA
Analog Devices Inc./Maxim Integrated LTC4231HUD-1#TRPBF	General Purpose	Circuit Breaker Current Limit Fault Timeout OVP Slew Rate UVLO	36 VDC	2.7 V	Hot Swap Controller	125 °C	-40 °C		1	12-QFN	3 mm	3 mm	Surface Mount	No		Latched Fault	4 µA	12-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC4231CMS-2#PBF	General Purpose	Circuit Breaker Current Limit Fault Timeout OVP Slew Rate UVLO	36 VDC	2.7 V	Hot Swap Controller	70 °C	0 °C		1	12-MSOP 12-TSSOP	0.118 in	3 mm	Surface Mount	No		Auto Retry	4 µA
Analog Devices Inc./Maxim Integrated LTC4231CMS-1#TRPBF	General Purpose	Circuit Breaker Current Limit Fault Timeout OVP Slew Rate UVLO	36 VDC	2.7 V	Hot Swap Controller	70 °C	0 °C		1	12-MSOP 12-TSSOP	0.118 in	3 mm	Surface Mount	No		Latched Fault	4 µA
Analog Devices Inc./Maxim Integrated LTC4231HUD-2#PBF	General Purpose	Circuit Breaker Current Limit Fault Timeout OVP Slew Rate UVLO	36 VDC	2.7 V	Hot Swap Controller	125 °C	-40 °C		1	12-QFN	3 mm	3 mm	Surface Mount	No		Auto Retry	4 µA	12-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC4231HMS-1#TRPBF	General Purpose	Circuit Breaker Current Limit Fault Timeout OVP Slew Rate UVLO	36 VDC	2.7 V	Hot Swap Controller	125 °C	-40 °C		1	12-MSOP 12-TSSOP	0.118 in	3 mm	Surface Mount	No		Latched Fault	4 µA
Analog Devices Inc./Maxim Integrated LTC4231CMS-1#PBF	General Purpose	Circuit Breaker Current Limit Fault Timeout OVP Slew Rate UVLO	36 VDC	2.7 V	Hot Swap Controller	70 °C	0 °C		1	12-MSOP 12-TSSOP	0.118 in	3 mm	Surface Mount	No		Latched Fault	4 µA
Analog Devices Inc./Maxim Integrated LTC4231CUD-1#TRPBF	General Purpose	Circuit Breaker Current Limit Fault Timeout OVP Slew Rate UVLO	36 VDC	2.7 V	Hot Swap Controller	70 °C	0 °C		1	12-QFN	3 mm	3 mm	Surface Mount	No		Latched Fault	4 µA	12-WFQFN Exposed Pad

Pricing

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CAD

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Documents

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LTC4231HMS-1#WTRPBF | Datasheet

R547 Reliability Data