Datasheet Linear Technology LTC4240

Manufacturer	Linear Technology
Series	LTC4240

CompactPCI Hot Swap Controller with IВІC Compatible Interface

Datasheets

PDF, 505 Kb, File uploaded: Oct 25, 2017

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Packaging

	LTC4240CGN#PBF	LTC4240CGN#TRPBF	LTC4240IGN#PBF	LTC4240IGN#TRPBF
N	1	2	3	4
Package	SSOP-28 Package Outline Drawing	SSOP-28 Package Outline Drawing	SSOP-28 Package Outline Drawing	SSOP-28 Package Outline Drawing
Package Code	GN	GN	GN	GN
Package Index	05-08-1641 (GN28)	05-08-1641 (GN28)	05-08-1641 (GN28)	05-08-1641 (GN28)
Pin Count	28	28	28	28

Parametrics

Parameters / Models	LTC4240CGN#PBF	LTC4240CGN#TRPBF	LTC4240IGN#PBF	LTC4240IGN#TRPBF
Active Limiting	yes	yes	yes	yes
Circuit Breaker Accuracy, %	9	9	9	9
Circuit Breaker Threshold	55mV	55mV	55mV	55mV
Circuit Breakers	4	4	4	4
Demo Boards	DC458A	DC458A	DC458A	DC458A
Design Tools	LTspice Model	LTspice Model	LTspice Model	LTspice Model
Export Control	no	no	no	no
Fault Output	yes	yes	yes	yes
Features	Digital Interface	Digital Interface	Digital Interface	Digital Interface
Foldback	yes	yes	yes	yes
In-Rush Current	Active	Active	Active	Active
Isupply, mA	3	3	3	3
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	yes	yes	yes	yes
Sequencing	no	no	no	no
Tracking	yes	yes	yes	yes
Vin Range	3.3, 5, В±12	3.3, 5, В±12	3.3, 5, В±12	3.3, 5, В±12

Eco Plan

	LTC4240CGN#PBF	LTC4240CGN#TRPBF	LTC4240IGN#PBF	LTC4240IGN#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant

Articles

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CompactPCI Hot Swap Controller with I2C Interface, Bus Precharge and On-Chip LOCAL_PCI_RESET# Logic &mdash LT Journal
PDF, 285 Kb, File published: Sep 1, 2003
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DESIGN FEATURES CompactPCI Hot Swap Controller with
I2C Interface, Bus Precharge and OnChip LOCAL_PCI_RESET# Logic
by Victor Fleury
Introduction When a board is plugged into the
live backplane of a host system (hot
swapped), the bulk bypass capacitors
of the board can draw large inrush
currents as they charge. These transient currents can damage connectors
or create glitches on the backplane,
potentially causing other boards in
the system to inadvertently reset. To
prevent such large inrush currents, the
bulk bypass capacitors on the plug-in
board must be isolated during the Hot
Swap sequence.
The LTC4240 provides a controlled
on-off switch for four hot swappable
board power supply voltages, allowing the board to be safely inserted
or removed from a live CompactPCI
(CPCI) slot without disturbing the
system power supplies. The LTC4240
includes an I2C-compatible interface
that allows software control and moniCompactPCI …

Model Line

Series: LTC4240 (4)

LTC4240CGN#PBF LTC4240CGN#TRPBF LTC4240IGN#PBF LTC4240IGN#TRPBF

Manufacturer's Classification

Monitor, Control and Protection > Hot Swap Controllers > PCI Hot Swap Controllers | Low Voltage Hot Swap Controllers

Slices

Microcontrollers