Datasheet Linear Technology LTC4228-2

Manufacturer	Linear Technology
Series	LTC4228-2

Dual Ideal Diode and Hot Swap Controller

Datasheets

PDF, 388 Kb, File uploaded: Oct 25, 2017

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Packaging

	LTC4228CGN-2#PBF	LTC4228CGN-2#TRPBF	LTC4228CUFD-2#PBF	LTC4228CUFD-2#TRPBF	LTC4228IGN-2#PBF	LTC4228IGN-2#TRPBF	LTC4228IUFD-2#PBF	LTC4228IUFD-2#TRPBF
N	1	2	3	4	5	6	7	8
Package	SSOP-28 Package Outline Drawing	SSOP-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	SSOP-28 Package Outline Drawing	SSOP-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing
Package Code	GN	GN	UFD	UFD	GN	GN	UFD	UFD
Package Index	05-08-1641 (GN28)	05-08-1641 (GN28)	05-08-1712	05-08-1712	05-08-1641 (GN28)	05-08-1641 (GN28)	05-08-1712	05-08-1712
Pin Count	28	28	28	28	28	28	28	28

Parametrics

Parameters / Models	LTC4228CGN-2#PBF	LTC4228CGN-2#TRPBF	LTC4228CUFD-2#PBF	LTC4228CUFD-2#TRPBF	LTC4228IGN-2#PBF	LTC4228IGN-2#TRPBF	LTC4228IUFD-2#PBF	LTC4228IUFD-2#TRPBF
Number of Channels	2	2	2	2	2	2	2	2
Demo Boards	DC1899A-A,DC1899A-B	DC1899A-A,DC1899A-B	DC1899A-A,DC1899A-B	DC1899A-A,DC1899A-B	DC1899A-A,DC1899A-B	DC1899A-A,DC1899A-B	DC1899A-A,DC1899A-B	DC1899A-A,DC1899A-B
Design Tools	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model
Diode Off with Back-to-Back FETs?	no	no	no	no	no	no	no	no
Export Control	no	no	no	no	no	no	no	no
Ideal Diode	Dual, External, N-Channel	Dual, External, N-Channel	Dual, External, N-Channel	Dual, External, N-Channel	Dual, External, N-Channel	Dual, External, N-Channel	Dual, External, N-Channel	Dual, External, N-Channel
Internal FET	no	no	no	no	no	no	no	no
Operating Temperature Range, °C	0 to 70	0 to 70	0 to 70	0 to 70	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Supply for FET Gate drive	Internal Charge Pump	Internal Charge Pump	Internal Charge Pump	Internal Charge Pump	Internal Charge Pump	Internal Charge Pump	Internal Charge Pump	Internal Charge Pump
Total Quiescent Current, mA	2.95	2.95	2.95	2.95	2.95	2.95	2.95	2.95
Typical Current Capability, A	20	20	20	20	20	20	20	20
Vin Max, V	18	18	18	18	18	18	18	18
Vin Min, V	2.9	2.9	2.9	2.9	2.9	2.9	2.9	2.9

Eco Plan

	LTC4228CGN-2#PBF	LTC4228CGN-2#TRPBF	LTC4228CUFD-2#PBF	LTC4228CUFD-2#TRPBF	LTC4228IGN-2#PBF	LTC4228IGN-2#TRPBF	LTC4228IUFD-2#PBF	LTC4228IUFD-2#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Other Options

Articles

Download
Ideal Diode and Hot Swap Controller Enables Supply Redundancy and Isolates Faults &mdash LT Journal
PDF, 1.6 Mb, File published: Jan 17, 2013
Extract from the document
Ideal Diode and Hot Swap Controller
Enables Supply Redundancy and Isolates Faults
Chew Lye Huat Schottky diodes are used in a variety of ways
to implement multisource power systems.
For instance, high availability electronic
systemsвЂ”such as ВµTCA network and storage
serversвЂ”employ power Schottky diode-OR
circuits in redundant power systems. Diode
ORing is also used in systems with alternate
power sources, such as an AC wall adapter
and a backup battery feed. The problem is that
the Schottky diodes consume power due to
the forward voltage dropвЂ”the resulting heat
must be dissipated with dedicated copper
area on the PCB, or by heat sinks bolted to the
diode, both of which require significant space.
The family of products comprising the
LTC4225, LTC4227 and LTC4228 minimize
power loss by using external N-channel
MOSFETs for pass elements, minimizing the voltage drop from the supply to
the load when the MOSFETs are turned
on. When an input source voltage drops
below the output common supply voltage, the appropriate MOSFET is turned …

Model Line

Series: LTC4228-2 (8)

LTC4228CGN-2#PBF LTC4228CGN-2#TRPBF LTC4228CUFD-2#PBF LTC4228CUFD-2#TRPBF LTC4228IGN-2#PBF LTC4228IGN-2#TRPBF LTC4228IUFD-2#PBF LTC4228IUFD-2#TRPBF

Manufacturer's Classification

Monitor, Control and Protection > PowerPath Controllers & Ideal Diodes
Monitor, Control and Protection > Hot Swap Controllers > Low Voltage Hot Swap Controllers

Slices

Microcontrollers