LT1641CS8#PBF

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Analog Devices Inc./Maxim Integrated

POSITIVE HIGH VOLTAGE HOT SWAP CONTROLLER

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LT1641CS8#PBF

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Analog Devices Inc./Maxim Integrated

POSITIVE HIGH VOLTAGE HOT SWAP CONTROLLER

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Description Specifications Series Pricing CAD Documents

Description

General part information

LT1641 Series

The LT1641 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 an N-channel gate for supply voltages ranging from 9V to 80V.The chip features a programmable analog foldback current limit circuit. If the chip remains in current limit for more than a programmable time, the N-channel pass transistor turns off and is optionally set to automatically restart after a time-out delay.The PWRGD output indicates when the output voltage, sensed by the FB pin, is within tolerance. The ON pin provides programmable undervoltage lockout.The LT1641-1/LT1641-2 are recommended for new designs.The LT1641 is available in the 8-lead SO package.ApplicationsHot Board InsertionElectronic Circuit BreakerIndustrial High Side Switch/Circuit Breaker24V/48V Industrial/Alarm Systems

Technical Specifications

Parameters and characteristics for this part

Specification	LT1641CS8#PBF

Applications	General Purpose
Current - Supply	2 mA
Features	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	8-SO, 8-SOIC
Package Width	3.9 mm
Programmable Features	Slew Rate, UVLO, Current Limit, OVP, Fault Timeout
Type	Hot Swap Controller
Voltage - Supply (Maximum)	80 V
Voltage - Supply (Minimum)	9 VDC

LT1641 Series

Part	Mounting Type	Internal Switch(s)	Type	Programmable Features	Current - Supply	Features	Operating Temperature (Max)	Operating Temperature (Min)	Applications	Package Length	Package Name	Package Width	Number of Channels	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Supplied Contents	Secondary Attributes	Primary Attributes	Utilized IC / Part	Function	Contents	Embedded
Analog Devices Inc./Maxim Integrated LT1641CS8#TRPBF	Surface Mount	No	Hot Swap Controller	Current Limit Fault Timeout OVP Slew Rate UVLO	2 mA	Auto Retry	70 °C	0 °C	General Purpose	0.154 in	8-SO 8-SOIC	3.9 mm	1	80 V	9 VDC
Analog Devices Inc./Maxim Integrated LT1641IS8#TRPBF	Surface Mount	No	Hot Swap Controller	Current Limit Fault Timeout OVP Slew Rate UVLO	2 mA		85 °C	-40 °C	General Purpose	0.154 in	8-SO 8-SOIC	3.9 mm	1	80 V	9 VDC
Analog Devices Inc./Maxim Integrated LT1641CS8#PBF	Surface Mount	No	Hot Swap Controller	Current Limit Fault Timeout OVP Slew Rate UVLO	2 mA	Auto Retry	70 °C	0 °C	General Purpose	0.154 in	8-SO 8-SOIC	3.9 mm	1	80 V	9 VDC
Analog Devices Inc./Maxim Integrated DC1354B-C			Power Management													Board(s)	On-Board LEDs	Latch-Off	LT1641-1	Hot Swap Controller	Board	No
Analog Devices Inc./Maxim Integrated LT1641IS8#PBF	Surface Mount	No	Hot Swap Controller	Current Limit Fault Timeout OVP Slew Rate UVLO	2 mA		85 °C	-40 °C	General Purpose	0.154 in	8-SO 8-SOIC	3.9 mm	1	80 V	9 VDC

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

R375 Reliability Data

LT1641CS8#PBF | Datasheet