Datasheet Linear Technology LT4256-1

Manufacturer	Linear Technology
Series	LT4256-1

Positive High Voltage Hot Swap Controllers

Datasheets

PDF, 219 Kb, Revision: A, File uploaded: Oct 25, 2017

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Packaging

	LT4256-1CS8#PBF	LT4256-1CS8#TRPBF	LT4256-1IS8#PBF	LT4256-1IS8#TRPBF	LT4256-2CS8#PBF	LT4256-2CS8#TRPBF	LT4256-2IS8#PBF	LT4256-2IS8#TRPBF
N	1	2	3	4	5	6	7	8
Package	SO-8 Package Outline Drawing	SO-8 Package Outline Drawing	SO-8 Package Outline Drawing	SO-8 Package Outline Drawing	SO-8 Package Outline Drawing	SO-8 Package Outline Drawing	SO-8 Package Outline Drawing	SO-8 Package Outline Drawing
Package Code	S8	S8	S8	S8	S8	S8	S8	S8
Package Index	05-08-1610 (S8)	05-08-1610 (S8)	05-08-1610 (S8)	05-08-1610 (S8)	05-08-1610 (S8)	05-08-1610 (S8)	05-08-1610 (S8)	05-08-1610 (S8)
Pin Count	8	8	8	8	8	8	8	8

Parametrics

Parameters / Models	LT4256-1CS8#PBF	LT4256-1CS8#TRPBF	LT4256-1IS8#PBF	LT4256-1IS8#TRPBF	LT4256-2CS8#PBF	LT4256-2CS8#TRPBF	LT4256-2IS8#PBF	LT4256-2IS8#TRPBF
Active Limiting	yes	yes	yes	yes	yes	yes	yes	yes
Circuit Breaker Accuracy, %	18	18	18	18	18	18	18	18
Circuit Breaker Threshold	55mV	55mV	55mV	55mV	55mV	55mV	55mV	55mV
Circuit Breakers	1	1	1	1	1	1	1	1
Demo Boards	DC1354A-A,DC1354A-B	DC1354A-A,DC1354A-B	DC1354A-A,DC1354A-B	DC1354A-A,DC1354A-B	DC1354A-A,DC1354A-B	DC1354A-A,DC1354A-B	DC1354A-A,DC1354A-B	DC1354A-A,DC1354A-B
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File
Export Control	no	no	no	no	no	no	no	no
Fault Output	no	no	no	no	no	no	no	no
Foldback	yes	yes	yes	yes	yes	yes	yes	yes
In-Rush Current	Active	Active	Active	Active	Active	Active	Active	Active
Isupply, mA	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8
OV	no	no	no	no	no	no	no	no
Operating Temperature Range, °C	0 to 70	0 to 70	-40 to 85	-40 to 85	0 to 70	0 to 70	-40 to 85	-40 to 85
Power Good Output	yes	yes	yes	yes	yes	yes	yes	yes
Reset Output	no	no	no	no	no	no	no	no
Sequencing	no	no	no	no	no	no	no	no
UV	yes	yes	yes	yes	yes	yes	yes	yes
Vin Range	10.8V to 80V	10.8V to 80V	10.8V to 80V	10.8V to 80V	10.8V to 80V	10.8V to 80V	10.8V to 80V	10.8V to 80V

Eco Plan

	LT4256-1CS8#PBF	LT4256-1CS8#TRPBF	LT4256-1IS8#PBF	LT4256-1IS8#TRPBF	LT4256-2CS8#PBF	LT4256-2CS8#TRPBF	LT4256-2IS8#PBF	LT4256-2IS8#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Articles

Download
Versatile 80V Hot Swap Controllers Drive Large MOSFETs; Improve Accuracy and Foldback Current Limiting &mdash LT Journal
PDF, 175 Kb, File published: Mar 25, 2005
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DESIGN FEATURES Versatile 80V Hot Swap Controllers
Drive Large MOSFETs; Improve
Accuracy and Foldback
Current Limiting
by Mark Belch
Introduction
Routine maintenance and upgrades to
high reliability computing, networking
and telecommunications systems require that new or replacement circuit
boards be inserted into a powered
48V(typical) bus. When a circuit board
is inserted into a live backplane, the
input capacitors on the board can
draw high inrush currents from the
backplane power bus as they charge.
The inrush current can permanently
damage the connector pins and board
components as well as glitch the system supply, causing other boards in
the system to reset. The new LT4256
family (LT4256-1 and LT4256-2) provides a compact and robust solution to
eliminate these hot plugging issues.
The LT4256 is designed to turn
on a boardвЂ™s supply voltage in a controlled manner, allowing the board to …

Model Line

Series: LT4256-1 (8)

LT4256-1CS8#PBF LT4256-1CS8#TRPBF LT4256-1IS8#PBF LT4256-1IS8#TRPBF LT4256-2CS8#PBF LT4256-2CS8#TRPBF LT4256-2IS8#PBF LT4256-2IS8#TRPBF

Manufacturer's Classification

Monitor, Control and Protection > Hot Swap Controllers > High Voltage Hot Swap Controllers

Slices

Microcontrollers