Integrated Circuits (ICs)

LT1640HIS8#PBF

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Analog Devices

NEGATIVE VOLTAGE HOT SWAP CONTROLLER

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Integrated Circuits (ICs)

LT1640HIS8#PBF

Active

Analog Devices

NEGATIVE VOLTAGE HOT SWAP CONTROLLER

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DocumentsDatasheet R375 Reliability Data

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LT1640HIS8#PBF

Applications	-48 V
Current - Supply	1.3 mA
Features	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	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Programmable Features	Circuit Breaker, OVP, Fault Timeout, UVLO
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	Current - Supply	Mounting Type	Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Package / Case	Package / Case	Number of Channels	Applications	Programmable Features	Supplier Device Package	Features	Package / Case [y]	Package / Case [x]
Analog Devices LT1640LCN8#PBF	1.3 mA	Through Hole	Hot Swap Controller	-80 V	-10 V	70 °C	0 °C	0.3 in	8-DIP	7.62 mm	1	-48 V	Circuit Breaker Fault Timeout OVP UVLO	8-PDIP	Auto Retry
Analog Devices LT1640ALCS8#TRPBF	1.3 mA	Surface Mount	Hot Swap Controller	-80 V	-10 V	70 °C	0 °C		8-SOIC		1	-48 V	Circuit Breaker Fault Timeout OVP UVLO	8-SO	Auto Retry	3.9 mm	0.154 in
Analog Devices LT1640ALCN8#PBF	1.3 mA	Through Hole	Hot Swap Controller	-80 V	-10 V	70 °C	0 °C	0.3 in	8-DIP	7.62 mm	1	-48 V	Circuit Breaker Fault Timeout OVP UVLO	8-PDIP	Auto Retry
Analog Devices LT1640HCN8#PBF	1.3 mA	Through Hole	Hot Swap Controller	-80 V	-10 V	70 °C	0 °C	0.3 in	8-DIP	7.62 mm	1	-48 V	Circuit Breaker Fault Timeout OVP UVLO	8-PDIP	Auto Retry
Analog Devices LT1640AHCS8#TRPBF	1.3 mA	Surface Mount	Hot Swap Controller	-80 V	-10 V	70 °C	0 °C		8-SOIC		1	-48 V	Circuit Breaker Fault Timeout OVP UVLO	8-SO	Auto Retry	3.9 mm	0.154 in
Analog Devices LT1640ALIS8#PBF	1.3 mA	Surface Mount	Hot Swap Controller	-80 V	-10 V	85 °C	-40 °C		8-SOIC		1	-48 V	Circuit Breaker Fault Timeout OVP UVLO	8-SO	Auto Retry	3.9 mm	0.154 in
Analog Devices LT1640HIS8#TRPBF	1.3 mA	Surface Mount	Hot Swap Controller	-80 V	-10 V	85 °C	-40 °C		8-SOIC		1	-48 V	Circuit Breaker Fault Timeout OVP UVLO	8-SO	Auto Retry	3.9 mm	0.154 in
Analog Devices LT1640AHIS8#TRPBF	1.3 mA	Surface Mount	Hot Swap Controller	-80 V	-10 V	85 °C	-40 °C		8-SOIC		1	-48 V	Circuit Breaker Fault Timeout OVP UVLO	8-SO	Auto Retry	3.9 mm	0.154 in
Analog Devices LT1640HIS8#PBF	1.3 mA	Surface Mount	Hot Swap Controller	-80 V	-10 V	85 °C	-40 °C		8-SOIC		1	-48 V	Circuit Breaker Fault Timeout OVP UVLO	8-SO	Auto Retry	3.9 mm	0.154 in

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 9.46
		10	$ 6.55
		25	$ 5.80
		100	$ 4.96
		250	$ 4.55
		500	$ 4.31
		1000	$ 4.10
		2500	$ 4.00

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