Specification	LT1640ALCS8#PBF

Applications	-48 V
Current - Supply	1.3 mA
Features	Auto Retry
Internal Switch(s)	False
Mounting Type	Surface Mount
Number of Channels [custom]	1
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Package / Case	0.154 in
Package / Case	8-SOIC
Package / Case	3.9 mm
Programmable Features	OVP, UVLO, Fault Timeout, Circuit Breaker
Supplier Device Package	8-SO
Type	Hot Swap Controller
Voltage - Supply [Max]	-10 V
Voltage - Supply [Min]	-80 V

LT1640A Series

Negative Voltage Hot Swap Controller

Part	Voltage - Supply [Min]	Voltage - Supply [Max]	Features	Number of Channels [custom]	Mounting Type	Type	Current - Supply	Applications	Package / Case	Package / Case	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Programmable Features	Supplier Device Package
Analog Devices Inc./Maxim Integrated LT1640ALCS8#PBF	-80 V	-10 V	Auto Retry	1	Surface Mount	Hot Swap Controller	1.3 mA	-48 V	0.154 in	8-SOIC	3.9 mm	70 °C	0 °C	Circuit Breaker Fault Timeout OVP UVLO	8-SO
Analog Devices Inc./Maxim Integrated LT1640AHCN8#PBF	-80 V	-10 V	Auto Retry	1	Through Hole	Hot Swap Controller	1.3 mA	-48 V		8-DIP (0.300" 7.62mm)		70 °C	0 °C	Circuit Breaker Fault Timeout OVP UVLO	8-PDIP
Analog Devices Inc./Maxim Integrated LT1640ALIN8#PBF	-80 V	-10 V	Auto Retry	1	Through Hole	Hot Swap Controller	1.3 mA	-48 V		8-DIP (0.300" 7.62mm)		85 °C	-40 C	Circuit Breaker Fault Timeout OVP UVLO	8-PDIP
Analog Devices Inc./Maxim Integrated LT1640ALIS8#TRPBF	-80 V	-10 V	Auto Retry	1	Surface Mount	Hot Swap Controller	1.3 mA	-48 V	0.154 in	8-SOIC	3.9 mm	85 °C	-40 C	Circuit Breaker Fault Timeout OVP UVLO	8-SO
Analog Devices Inc./Maxim Integrated LT1640AHIN8#PBF	-80 V	-10 V	Auto Retry	1	Through Hole	Hot Swap Controller	1.3 mA	-48 V		8-DIP (0.300" 7.62mm)		85 °C	-40 C	Circuit Breaker Fault Timeout OVP UVLO	8-PDIP
Analog Devices Inc./Maxim Integrated LT1640AHCS8#PBF	-80 V	-10 V	Auto Retry	1	Surface Mount	Hot Swap Controller	1.3 mA	-48 V	0.154 in	8-SOIC	3.9 mm	70 °C	0 °C	Circuit Breaker Fault Timeout OVP UVLO	8-SO
Analog Devices Inc./Maxim Integrated LT1640AHIS8#PBF	-80 V	-10 V	Auto Retry	1	Surface Mount	Hot Swap Controller	1.3 mA	-48 V	0.154 in	8-SOIC	3.9 mm	85 °C	-40 C	Circuit Breaker Fault Timeout OVP UVLO	8-SO

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	24	$ 7.23	1m+

Description

General part information

LT1640A Series

The LT1640AL/LT1640AH are 8-pin, negative voltage Hot Swap™controllers that allow a board to be safely inserted and removed from a live backplane. Inrush current is limited to a programmable value by controlling the gate voltage of an external N-channel pass transistor. The pass transistor is turned off if the input voltage is less than the programmable undervoltage threshold or greater than the overvoltage threshold. A programmable electronic circuit breaker protects the system against shorts. ThePWRGD(LT1640AL) or PWRGD (LT1640AH) signal can be used to directly enable a power module. The LT1640AL is designed for modules with a low enable input and the LT1640AH for modules with a high enable input.The LT1640AL/LT1640AH are available in 8-pin PDIP and SO packages.ApplicationsCentral Office Switching-48V Distributed Power SystemsNegative Power Supply Control

Documents

Technical documentation and resources

R375 Reliability Data

Reliability Data

LT1640ALCS8#PBF | Datasheet

Datasheet