Specification	LT1641-1IS8#PBF

Applications	General Purpose
Current - Supply	2 mA
Features	Latched Fault
Internal Switch(s)	False
Mounting Type	Surface Mount
Number of Channels [custom]	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 C
Package / Case	0.154 in
Package / Case	8-SOIC
Package / Case	3.9 mm
Programmable Features	Fault Timeout, UVLO, OVP, Current Limit, Slew Rate
Supplier Device Package	8-SO
Type	Hot Swap Controller
Voltage - Supply [Max]	80 V
Voltage - Supply [Min]	9 V

LT1641-1LT1641-2 Series

Part	Current - Supply	Supplier Device Package	Number of Channels [custom]	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Min]	Voltage - Supply [Max]	Applications	Mounting Type	Features	Type	Package / Case	Package / Case	Package / Case	Programmable Features
Analog Devices Inc./Maxim Integrated LT1641-1IS8#PBF	2 mA	8-SO	1	85 °C	-40 C	9 V	80 V	General Purpose	Surface Mount	Latched Fault	Hot Swap Controller	0.154 in	8-SOIC	3.9 mm	Current Limit Fault Timeout OVP Slew Rate UVLO
Analog Devices Inc./Maxim Integrated LT1641-2CS8#PBF	2 mA	8-SO	1	70 °C	0 °C	9 V	80 V	General Purpose	Surface Mount	Auto Retry	Hot Swap Controller	0.154 in	8-SOIC	3.9 mm	Current Limit Fault Timeout OVP Slew Rate UVLO
Analog Devices Inc./Maxim Integrated LT1641-2IS8#TRPBF	2 mA	8-SO	1	85 °C	-40 C	9 V	80 V	General Purpose	Surface Mount	Auto Retry	Hot Swap Controller	0.154 in	8-SOIC	3.9 mm	Current Limit Fault Timeout OVP Slew Rate UVLO
Analog Devices Inc./Maxim Integrated LT1641-2IS8#PBF	2 mA	8-SO	1	85 °C	-40 C	9 V	80 V	General Purpose	Surface Mount	Auto Retry	Hot Swap Controller	0.154 in	8-SOIC	3.9 mm	Current Limit Fault Timeout OVP Slew Rate UVLO
Analog Devices Inc./Maxim Integrated LT1641-1CS8#TRPBF	2 mA	8-SO	1	70 °C	0 °C	9 V	80 V	General Purpose	Surface Mount	Latched Fault	Hot Swap Controller	0.154 in	8-SOIC	3.9 mm	Current Limit Fault Timeout OVP Slew Rate UVLO
Analog Devices Inc./Maxim Integrated LT1641-1CS8#PBF	2 mA	8-SO	1	70 °C	0 °C	9 V	80 V	General Purpose	Surface Mount	Latched Fault	Hot Swap Controller	0.154 in	8-SOIC	3.9 mm	Current Limit Fault Timeout OVP Slew Rate UVLO
Analog Devices Inc./Maxim Integrated LT1641-1IS8#TRPBF	2 mA	8-SO	1	85 °C	-40 C	9 V	80 V	General Purpose	Surface Mount	Latched Fault	Hot Swap Controller	0.154 in	8-SOIC	3.9 mm	Current Limit Fault Timeout OVP Slew Rate UVLO
Analog Devices Inc./Maxim Integrated LT1641-2CS8#TRPBF	2 mA	8-SO	1	70 °C	0 °C	9 V	80 V	General Purpose	Surface Mount	Auto Retry	Hot Swap Controller	0.154 in	8-SOIC	3.9 mm	Current Limit Fault Timeout OVP Slew Rate UVLO

Pricing

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

Distributor	Package	Quantity	$	Updated

Digikey	N/A	471	$ 8.92	1m+

Description

General part information

LT1641-1LT1641-2 Series

The LT1641-1/LT1641-2 are 8-pin Hot Swap™controllers that allow 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 chips feature a programmable analog foldback current limit circuit. If the chips remain in current limit for more than a programmable time, the N-channel pass transistor is either latched off (LT1641-1) or is set to automatically restart after a time-out delay (LT1641-2).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 available in the 8-lead SO package.ApplicationsHot Board InsertionElectronic Circuit BreakerIndustrial High Side Switch/Circuit Breaker24V/48V Industrial/Alarm Systems

Documents

Technical documentation and resources

R375 Reliability Data

Reliability Data

LT1641-1IS8#PBF | Datasheet

Datasheet