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LT1641IS8#TRPBF

Description
Hot Swap Controller 1-CH 80V N-Channel Positive High Voltage 8-Pin SOIC N T/R
File Size170KB,12 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LT1641IS8#TRPBF Overview

Hot Swap Controller 1-CH 80V N-Channel Positive High Voltage 8-Pin SOIC N T/R

LT1641IS8#TRPBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
TypePositive High Voltage
Fault ManagementAuto-Restart
External FETN-Channel
Number of Channels1
PGOOD Output LogicActive High
Minimum Operating Supply Voltage (V)9
Maximum Operating Supply Voltage (V)80
Maximum Supply Current (mA)5.5
External Sense ResistorYes
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeIndustrial
PackagingTape and Reel
Pin Count8
Standard Package NameSOP
Supplier PackageSOIC N
MountingSurface Mount
Package Height1.5(Max)
Package Length5(Max)
Package Width3.99(Max)
PCB changed8
Lead ShapeGull-wing
LT1641
Positive High Voltage
Hot Swap Controller
FEATURES
DESCRIPTIO
Allows Safe Board Insertion and Removal from a
Live Backplane
Controls Supply Voltage from 9V to 80V
Programmable Analog Foldback Current Limiting
High Side Drive for an External N-Channel
Automatic Retry Capability
User Programmable Supply Voltage Power-Up Rate
Undervoltage Lockout
Overvoltage Protection
Available in 8-Lead SO Package
The LT
®
1641 is an 8-pin Hot Swap
TM
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 program-
mable 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 cur-
rent 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.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
APPLICATIO S
Hot Board Insertion
Electronic Circuit Breaker
Industrial High Side Switch/Circuit Breaker
24V/48V Industrial/Alarm Systems
TYPICAL APPLICATIO
V
IN
24V
24V Input Voltage Automatic Restart Application
R
S
0.01Ω
Q1
IRF530
V
OUT
SHORT
PIN
R1
49.9k
1%
10nF
R7
24k
5%
FB
LT1641
R2
3.4k
1%
TIMER
C2
0.68µF
1641 TA01
R5
10Ω
5%
D1
CMPZ
5248B
R3
59k
1%
*SMAT70A
V
CC
ON
SENSE
GATE
R4
3.57k
1%
PWRGD
GND
GND
*DIODES, INC.
U
C
L
PWRGD
1641fd
U
U
1

LT1641IS8#TRPBF Related Products

LT1641IS8#TRPBF LT1641CS8#PBF LT1641CS8#TRPBF LT1641IS8#PBF
Description Hot Swap Controller 1-CH 80V N-Channel Positive High Voltage 8-Pin SOIC N T/R Hot Swap Controller 1-CH 80V N-Channel Positive High Voltage 8-Pin SOIC N Tube Hot Swap Controller 1-CH 80V N-Channel Positive High Voltage 8-Pin SOIC N T/R Hot Swap Controller 1-CH 80V N-Channel Positive High Voltage 8-Pin SOIC N Tube
EU restricts the use of certain hazardous substances Compliant Compliant Compliant Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99
Part Status Active Active Active Active
HTS 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01
Type Positive High Voltage Positive High Voltage Positive High Voltage Positive High Voltage
Fault Management Auto-Restart Auto-Restart Auto-Restart Auto-Restart
External FET N-Channel N-Channel N-Channel N-Channel
Number of Channels 1 1 1 1
PGOOD Output Logic Active High Active High Active High Active High
Minimum Operating Supply Voltage (V) 9 9 9 9
Maximum Operating Supply Voltage (V) 80 80 80 80
Maximum Supply Current (mA) 5.5 5.5 5.5 5.5
External Sense Resistor Yes Yes Yes Yes
Maximum Operating Temperature (°C) 85 70 70 85
Supplier Temperature Grade Industrial Commercial Commercial Industrial
Packaging Tape and Reel Tube Tape and Reel Tube
Pin Count 8 8 8 8
Standard Package Name SOP SOP SOP SOP
Supplier Package SOIC N SOIC N SOIC N SOIC N
Mounting Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 1.5(Max) 1.5(Max) 1.5(Max) 1.5(Max)
Package Length 5(Max) 5(Max) 5(Max) 5(Max)
Package Width 3.99(Max) 3.99(Max) 3.99(Max) 3.99(Max)
PCB changed 8 8 8 8
Lead Shape Gull-wing Gull-wing Gull-wing Gull-wing
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