Datasheet Linear Technology LT4254

Manufacturer	Linear Technology
Series	LT4254

Positive High Voltage Hot Swap Controller with Open-Circuit Detect

Datasheets

PDF, 238 Kb, Revision: B, File uploaded: Oct 25, 2017

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Packaging

	LT4254CGN#PBF	LT4254CGN#TRPBF	LT4254IGN#PBF	LT4254IGN#TRPBF
N	1	2	3	4
Package	SSOP-16 Package Outline Drawing	SSOP-16 Package Outline Drawing	SSOP-16 Package Outline Drawing	SSOP-16 Package Outline Drawing
Package Code	GN	GN	GN	GN
Package Index	05-08-1641 (GN16)	05-08-1641 (GN16)	05-08-1641 (GN16)	05-08-1641 (GN16)
Pin Count	16	16	16	16

Parametrics

Parameters / Models	LT4254CGN#PBF	LT4254CGN#TRPBF	LT4254IGN#PBF	LT4254IGN#TRPBF
Active Limiting	yes	yes	yes	yes
Circuit Breaker Accuracy, %	20	20	20	20
Circuit Breaker Threshold	50mV	50mV	50mV	50mV
Circuit Breakers	1	1	1	1
Demo Boards	DC684A	DC684A	DC684A	DC684A
Export Control	no	no	no	no
Fault Output	no	no	no	no
Foldback	yes	yes	yes	yes
In-Rush Current	Active	Active	Active	Active
Isupply, mA	1.9	1.9	1.9	1.9
OV	yes	yes	yes	yes
Operating Temperature Range, °C	0 to 70	0 to 70	-40 to 85	-40 to 85
Power Good Output	yes	yes	yes	yes
Reset Output	no	no	no	no
Sequencing	no	no	no	no
UV	yes	yes	yes	yes
Vin Range	10.8V to 36V	10.8V to 36V	10.8V to 36V	10.8V to 36V

Eco Plan

	LT4254CGN#PBF	LT4254CGN#TRPBF	LT4254IGN#PBF	LT4254IGN#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant

Articles

Download
Versatile Hot Swap Controller with Open Circuit Detect, Foldback Current Limiting and Much More &mdash LT Journal
PDF, 200 Kb, File published: Sep 1, 2003
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DESIGN FEATURES Versatile Hot Swap Controller with
Open Circuit Detect, Foldback
Current Limiting and Much More
by Mark Belch Introduction
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 LT4254 provides a compact
and robust solution to eliminate these
hot plugging issues.
The LT4254 is designed to turn
on a boardвЂ™s supply voltage in a controlled manner, allowing the board to
be safely inserted or removed from a
live backplane having a supply voltage
from 10.8V to 36V. The device features
programmable inrush current control,
current foldback, programmable 1%
tolerance on the undervoltage and …

Model Line

Series: LT4254 (4)

LT4254CGN#PBF LT4254CGN#TRPBF LT4254IGN#PBF LT4254IGN#TRPBF

Manufacturer's Classification

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

Slices

Microcontrollers