LT1640HIS8#TRPBF

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Analog Devices Inc./Maxim Integrated

NEGATIVE VOLTAGE HOT SWAP CONTROLLER

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LT1640HIS8#TRPBF

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Analog Devices Inc./Maxim Integrated

NEGATIVE VOLTAGE HOT SWAP CONTROLLER

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Description Specifications Series Pricing CAD Documents

Description

General part information

LT1640 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

Technical Specifications

Parameters and characteristics for this part

Specification	LT1640HIS8#TRPBF

Applications	-48V
Current - Supply	1.3 mA
Features	Auto Retry
Internal Switch(s)	No
Mounting Type	Surface Mount
Number of Channels	1
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Package Length	0.154 in
Package Name	8-SOIC, 8-SO
Package Width	3.9 mm
Programmable Features	OVP, Circuit Breaker, Fault Timeout, UVLO
Type	Hot Swap Controller
Voltage - Supply (Maximum)	-10 V
Voltage - Supply (Minimum)	-80 V

LT1640 Series

Negative Voltage Hot Swap Controller

Part	Package Name	Number of Channels	Internal Switch(s)	Features	Current - Supply	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Supply (Minimum)	Voltage - Supply (Maximum)	Package Length	Package Width	Type	Programmable Features	Applications	Mounting Type
Analog Devices Inc./Maxim Integrated LT1640LCS8#PBF	8-SO 8-SOIC	1	No	Auto Retry	1.3 mA	70 °C	0 °C	-80 V	-10 V	0.154 in	3.9 mm	Hot Swap Controller	Circuit Breaker Fault Timeout OVP UVLO	-48V	Surface Mount
Analog Devices Inc./Maxim Integrated LT1640LCN8#PBF	8-DIP 8-PDIP	1	No	Auto Retry	1.3 mA	70 °C	0 °C	-80 V	-10 V	0.3 in	7.62 mm	Hot Swap Controller	Circuit Breaker Fault Timeout OVP UVLO	-48V	Through Hole
Analog Devices Inc./Maxim Integrated LT1640ALCS8#TRPBF	8-SO 8-SOIC	1	No	Auto Retry	1.3 mA	70 °C	0 °C	-80 V	-10 V	0.154 in	3.9 mm	Hot Swap Controller	Circuit Breaker Fault Timeout OVP UVLO	-48V	Surface Mount
Analog Devices Inc./Maxim Integrated LT1640LIS8#TRPBF	8-SO 8-SOIC	1	No	Auto Retry	1.3 mA	85 °C	-40 °C	-80 V	-10 V	0.154 in	3.9 mm	Hot Swap Controller	Circuit Breaker Fault Timeout OVP UVLO	-48V	Surface Mount
Analog Devices Inc./Maxim Integrated LT1640LIN8#PBF	8-DIP 8-PDIP	1	No	Auto Retry	1.3 mA	85 °C	-40 °C	-80 V	-10 V	0.3 in	7.62 mm	Hot Swap Controller	Circuit Breaker Fault Timeout OVP UVLO	-48V	Through Hole
Analog Devices Inc./Maxim Integrated LT1640HCS8#TRPBF	8-SO 8-SOIC	1	No	Auto Retry	1.3 mA	70 °C	0 °C	-80 V	-10 V	0.154 in	3.9 mm	Hot Swap Controller	Circuit Breaker Fault Timeout OVP UVLO	-48V	Surface Mount
Analog Devices Inc./Maxim Integrated LT1640ALCN8#PBF	8-DIP 8-PDIP	1	No	Auto Retry	1.3 mA	70 °C	0 °C	-80 V	-10 V	0.3 in	7.62 mm	Hot Swap Controller	Circuit Breaker Fault Timeout OVP UVLO	-48V	Through Hole
Analog Devices Inc./Maxim Integrated LT1640HCS8#PBF	8-SO 8-SOIC	1	No	Auto Retry	1.3 mA	70 °C	0 °C	-80 V	-10 V	0.154 in	3.9 mm	Hot Swap Controller	Circuit Breaker Fault Timeout OVP UVLO	-48V	Surface Mount
Analog Devices Inc./Maxim Integrated LT1640AHCN8	8-DIP 8-PDIP	1	No	Auto Retry	1.3 mA	70 °C	0 °C	-80 V	-10 V	0.3 in	7.62 mm	Hot Swap Controller	Circuit Breaker Fault Timeout OVP UVLO	-48V	Through Hole
Analog Devices Inc./Maxim Integrated LT1640HCN8#PBF	8-DIP 8-PDIP	1	No	Auto Retry	1.3 mA	70 °C	0 °C	-80 V	-10 V	0.3 in	7.62 mm	Hot Swap Controller	Circuit Breaker Fault Timeout OVP UVLO	-48V	Through Hole

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Tape and Reel Packaging

LT1640HIS8#TRPBF | Datasheet

R375 Reliability Data