Datasheet Linear Technology LT1952-1

Manufacturer	Linear Technology
Series	LT1952-1

Single Switch Synchronous Forward Controller

Datasheets

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PDF, 371 Kb, Language: en, File uploaded: Sep 3, 2017, Pages: 28
Single Switch Synchronous Forward Controller

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Prices

Packaging

	LT1952EGN-1#PBF	LT1952EGN-1#TRPBF	LT1952IGN-1#PBF	LT1952IGN-1#TRPBF	LT1952MPGN-1#PBF	LT1952MPGN-1#TRPBF
N	1	2	3	4	5	6
Package	SSOP-16 Package Outline Drawing	SSOP-16 Package Outline Drawing	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	GN	GN
Package Index	05-08-1641 (GN16)	05-08-1641 (GN16)	05-08-1641 (GN16)	05-08-1641 (GN16)	05-08-1641 (GN16)	05-08-1641 (GN16)
Pin Count	16	16	16	16	16	16

Parametrics

Parameters / Models	LT1952EGN-1#PBF	LT1952EGN-1#TRPBF	LT1952IGN-1#PBF	LT1952IGN-1#TRPBF	LT1952MPGN-1#PBF	LT1952MPGN-1#TRPBF
Demo Boards	DC1317A-A,DC1317A-B,DC1317A-C,DC1317A-E,DC1317A-F,DC759A,DC830A,DC968A-A,DC968A-B,DC968A-C,DC968A-D,DC1317A-G,DC1317A-D,DC1317A-H	DC1317A-A,DC1317A-B,DC1317A-C,DC1317A-E,DC1317A-F,DC759A,DC830A,DC968A-A,DC968A-B,DC968A-C,DC968A-D,DC1317A-G,DC1317A-D,DC1317A-H	DC1317A-A,DC1317A-B,DC1317A-C,DC1317A-E,DC1317A-F,DC759A,DC830A,DC968A-A,DC968A-B,DC968A-C,DC968A-D,DC1317A-G,DC1317A-D,DC1317A-H	DC1317A-A,DC1317A-B,DC1317A-C,DC1317A-E,DC1317A-F,DC759A,DC830A,DC968A-A,DC968A-B,DC968A-C,DC968A-D,DC1317A-G,DC1317A-D,DC1317A-H	DC1317A-A,DC1317A-B,DC1317A-C,DC1317A-E,DC1317A-F,DC759A,DC830A,DC968A-A,DC968A-B,DC968A-C,DC968A-D,DC1317A-G,DC1317A-D,DC1317A-H	DC1317A-A,DC1317A-B,DC1317A-C,DC1317A-E,DC1317A-F,DC759A,DC830A,DC968A-A,DC968A-B,DC968A-C,DC968A-D,DC1317A-G,DC1317A-D,DC1317A-H
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File
Export Control	no	no	no	no	no	no
Features	Resistor Set Frequency, External Synchronization	Resistor Set Frequency, External Synchronization	Resistor Set Frequency, External Synchronization	Resistor Set Frequency, External Synchronization	Resistor Set Frequency, External Synchronization	Resistor Set Frequency, External Synchronization
Frequency, kHz	500	500	500	500	500	500
Frequency Adjust Range	100kHz - 500kHz	100kHz - 500kHz	100kHz - 500kHz	100kHz - 500kHz	100kHz - 500kHz	100kHz - 500kHz
Frequency Sync Range	100kHz - 500kHz	100kHz - 500kHz	100kHz - 500kHz	100kHz - 500kHz	100kHz - 500kHz	100kHz - 500kHz
Integrated Inductor	no	no	no	no	no	no
Ishutdown, µA	240	240	240	240	240	240
Isupply, mA	5.2	5.2	5.2	5.2	5.2	5.2
Monolithic	no	no	no	no	no	no
Number of Outputs	1	1	1	1	1	1
Operating Temperature Range, °C	0 to 85	0 to 85	-40 to 85	-40 to 85	-55 to 125	-55 to 125
Polyphase	no	no	no	no	no	no
Switch Current, A	10	10	10	10	10	10
Synchronous	yes	yes	yes	yes	yes	yes
Topology	Forward, Flyback	Forward, Flyback	Forward, Flyback	Forward, Flyback	Forward, Flyback	Forward, Flyback
Vin Max, V	25	25	25	25	25	25
Vin Min, V	8.3	8.3	8.3	8.3	8.3	8.3

Eco Plan

	LT1952EGN-1#PBF	LT1952EGN-1#TRPBF	LT1952IGN-1#PBF	LT1952IGN-1#TRPBF	LT1952MPGN-1#PBF	LT1952MPGN-1#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Other Options

LT1952 LT1952

Design Notes

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Simple Circuit Replaces and Improves on Power Modules at Less Than Half the Price &mdash DN347
PDF, 80 Kb, File published: Sep 4, 2004
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advertisement Simple Circuit Replaces and Improves on Power Modules at
Less Than Half the Price вЂ“ Design Note 347
Goran Perica
Introduction
Prefabricated power modules offer a simple but expensive solution to the complicated problem of efп¬Ѓciently
converting high distribution voltages to the isolated low
voltages required by digital ICs. Build-your-own solutions are much cheaper, but time constraints may drive
even seasoned power supply designers to the power
module shelf. The LTВ®1952 changes that. It simpliп¬Ѓes
the design of a high performance synchronous single
switch forward converter enough to make it a feasible
and straightforward cost-cutting alternative to a power
module.
A synchronous forward converter is a good choice for
output voltages in the 1.2V to 26V range. In the forward
converter family, among the several topologies that can
achieve high efп¬Ѓciency, the single-switch topology is
the most cost effective. It requires the least number of
VL
47k INPUT
36V TO 75V power MOSFETs and associated components. Until now,
though, the single-switch forward converter required
very complex PWM control circuitry, relegating it to …

Model Line

Series: LT1952-1 (6)

LT1952EGN-1#PBF LT1952EGN-1#TRPBF LT1952IGN-1#PBF LT1952IGN-1#TRPBF LT1952MPGN-1#PBF LT1952MPGN-1#TRPBF

Manufacturer's Classification

Power Management > Switching Regulator > Flyback, Forward and Isolated Controllers
Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators