Datasheet Linear Technology LTC1646CGN#PBF

Manufacturer	Linear Technology
Series	LTC1646
Part Number	LTC1646CGN#PBF

CompactPCI Dual Hot Swap Controller

Datasheets

PDF, 418 Kb, Revision: A, File uploaded: Oct 25, 2017

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Prices

Packaging

Package	SSOP-16
Package Code	GN
Package Index	05-08-1641 (GN16)

Parametrics

Active Limiting	yes
Circuit Breaker Accuracy	16 %
Circuit Breaker Threshold	56mV
Circuit Breakers	2
Demo Boards	DC369A
Design Tools	LTspice Model
Export Control	no
Fault Output	yes
Foldback	yes
In-Rush Current	Active
Isupply	1.5 mA
Operating Temperature Range	0 to 70 °C
Power Good Output	yes
Reset Output	no
Sequencing	no
Tracking	yes
Vin Range	2.7V to 7V

Eco Plan

RoHS

Compliant

Design Notes

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LTC1646: Power Supply Isolation Controller Simplifies Hot Swapping the CompactPCI Bus for 5V-/3.3V-Only Applications &mdash DN253
PDF, 226 Kb, File published: Mar 3, 2001
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Power Supply Isolation Controller Simplifies Hot Swapping the
CompactPCI Bus for 5V-/3.3-Only Applications вЂ“ Design Note 253
Andy Gardner
and extraction and reports on the state of the supply
voltages via the HEALTHY# signal. Although В±12V supplies are provided on the CompactPCI
backplanes, many plug-in boards only require 5V and
3.3V. The LTC В®1646 is the ideal power supply isolation
controller for these applications. LTC1646 Feature Summary
The LTC1646 features can be summarized as follows: The LTC1646 Hot Swapв„ў controller is designed to
meet the power supply isolation requirements found
in the CompactPCI hot swap speciп¬Ѓcation PICMG 2.1
for plug-in boards requiring 5V and/or 3.3V supplies.
The chip will turn a boardвЂ™s supply voltages on and
off in a controlled manner, allowing the card to be
safely inserted or removed without causing glitches
on the power supplies and causing other boards in the
system to reset. It also protects against short circuits,
precharges the bus I/O connector pins during insertion
COMPACT PCI
CIRCUIT CARD
CONNECTOR
(FEMALE) Dual level, programmable circuit breakers: this feature is enabled after power-up is complete. If either
supply exceeds current limit for more than 20Ојs, …

Articles

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CompactPCI Hot Swap Controllers with Bus Precharge, On-Chip Intercept of PCI Reset Signal and Much More &mdash LT Journal
PDF, 175 Kb, File published: Dec 1, 2001
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DESIGN FEATURES CompactPCI Hot Swap Controllers
with Bus Precharge, On-Chip Intercept
of PCI Reset Signal and Much More
by Andrew Gardner
Introduction
When a circuit board is inserted into
a вЂњhotвЂќ (powered) backplane, its supply bypass capacitors can draw large
currents from the backplane power
bus as they charge. These currents
can cause glitches on the backplane
supply voltage, resetting other boards
in the system, and can even damage
edge connectors. The LTC1644 and
LTC1646 Hot Swapв„ў controllers
safely limit these charging currents
during board insertion into a hot backplane. They also offer several features
specifically tailored for CompactPCIв„ў
(CPCI) Hot Swap applications: R2
0.007в„¦
1% 5VIN MED 5V
LONG 5V R1
0.005в„¦, 1% 3VIN MED 3.3V
LONG 3.3V LONG V(I/O) V(I/O) MED вЂ“12V SHORT BD_SEL# CompactPCI CONNECTOR D1 R4 …

Model Line

Series: LTC1646 (4)

LTC1646CGN#PBF LTC1646CGN#TRPBF LTC1646IGN#PBF LTC1646IGN#TRPBF

Manufacturer's Classification

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

Other Names:

LTC1646CGNPBF, LTC1646CGN PBF

EMS supplier

Slices

Microcontrollers