Datasheet Linear Technology LT4220

Manufacturer	Linear Technology
Series	LT4220

Dual Supply Hot Swap Controller

Datasheets

PDF, 266 Kb, File uploaded: Oct 25, 2017

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Prices

Packaging

	LT4220CGN#PBF	LT4220CGN#TRPBF	LT4220IGN#PBF	LT4220IGN#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	LT4220CGN#PBF	LT4220CGN#TRPBF	LT4220IGN#PBF	LT4220IGN#TRPBF
Active Limiting	yes	yes	yes	yes
Circuit Breaker Accuracy, %	17	17	17	17
Circuit Breaker Threshold	48mV, -52mV	48mV, -52mV	48mV, -52mV	48mV, -52mV
Circuit Breakers	2	2	2	2
Demo Boards	DC665A	DC665A	DC665A	DC665A
Design Tools	LTspice Model	LTspice Model	LTspice Model	LTspice Model
Export Control	no	no	no	no
Fault Output	yes	yes	yes	yes
Foldback	yes	yes	yes	yes
In-Rush Current	Active	Active	Active	Active
Isupply, mA	2.7	2.7	2.7	2.7
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
Tracking	yes	yes	yes	yes
Vin Range	В±2.7V to В±16.5V	В±2.7V to В±16.5V	В±2.7V to В±16.5V	В±2.7V to В±16.5V

Eco Plan

	LT4220CGN#PBF	LT4220CGN#TRPBF	LT4220IGN#PBF	LT4220IGN#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant

Articles

Download
Hot Swap Controller Enforces Tracking in Split Supply Systems &mdash LT Journal
PDF, 181 Kb, File published: Dec 1, 2003
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DESIGN FEATURES Hot Swap Controller Enforces
Tracking in Split Supply Systems
by Ted Henderson Introduction Split power supplies are widely used in
audio, video and data communication
systems. These systems typically use
В±5V, В±12V or В±15V supply voltages
and require a wide range of operating currents. The LT4220 Hot Swap
controllerвЂ”which operates over any
combination of split supplies ranging from В±2.7V to В±16.5VвЂ”allows
a circuit board to be safely inserted
or removed from a live backplane
without glitching the power supplies
while controlling load currents from
milliamps to amps.
Glitches can cause anything from
objectionable вЂњpopsвЂќ in audio systems,
data loss in digital systems or even
connector damage. Pops can also
originate from shifting bias points or
complementary stages wherein half of
the circuit is correctly powered and the
other half has not yet been powered.
The LT4220 offers the usual Hot …

Model Line

Series: LT4220 (4)

LT4220CGN#PBF LT4220CGN#TRPBF LT4220IGN#PBF LT4220IGN#TRPBF

Manufacturer's Classification

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

EMS supplier

Slices

Microcontrollers