Datasheet Linear Technology LT3512

Manufacturer	Linear Technology
Series	LT3512

Monolithic High Voltage Isolated Flyback Converter

Datasheets

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PDF, 315 Kb, Language: en, File uploaded: Jul 31, 2016, Pages: 26
Monolithic High Voltage Isolated Flyback Converter

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Packaging

	LT3512EMS#PBF	LT3512EMS#TRPBF	LT3512HMS#PBF	LT3512HMS#TRPBF	LT3512IMS#PBF	LT3512IMS#TRPBF	LT3512MPMS#PBF	LT3512MPMS#TRPBF
N	1	2	3	4	5	6	7	8
Package	MS-16 Package Outline Drawing	MS-16 Package Outline Drawing	MS-16 Package Outline Drawing	MS-16 Package Outline Drawing	MS-16 Package Outline Drawing	MS-16 Package Outline Drawing	MS-16 Package Outline Drawing	MS-16 Package Outline Drawing
Package Code	MS	MS	MS	MS	MS	MS	MS	MS
Package Index	05-08-1847	05-08-1847	05-08-1847	05-08-1847	05-08-1847	05-08-1847	05-08-1847	05-08-1847
Pin Count	16	16	16	16	16	16	16	16

Parametrics

Parameters / Models	LT3512EMS#PBF	LT3512EMS#TRPBF	LT3512HMS#PBF	LT3512HMS#TRPBF	LT3512IMS#PBF	LT3512IMS#TRPBF	LT3512MPMS#PBF	LT3512MPMS#TRPBF
Demo Boards	DC1803A	DC1803A	DC1803A	DC1803A	DC1803A	DC1803A	DC1803A	DC1803A
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File
Export Control	no	no	no	no	no	no	no	no
Features	Boundary Mode Operation, No Opto Isolator	Boundary Mode Operation, No Opto Isolator	Boundary Mode Operation, No Opto Isolator	Boundary Mode Operation, No Opto Isolator	Boundary Mode Operation, No Opto Isolator	Boundary Mode Operation, No Opto Isolator	Boundary Mode Operation, No Opto Isolator	Boundary Mode Operation, No Opto Isolator
Frequency, kHz	650	650	650	650	650	650	650	650
Integrated Inductor	no	no	no	no	no	no	no	no
Isupply, mA	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5
Monolithic	yes	yes	yes	yes	yes	yes	yes	yes
Number of Outputs	1	1	1	1	1	1	1	1
Operating Temperature Range, °C	0 to 85	0 to 85	-40 to 125	-40 to 125	-40 to 85	-40 to 85	-55 to 125	-55 to 125
Polyphase	no	no	no	no	no	no	no	no
Switch Current, A	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6
Synchronous	no	no	no	no	no	no	no	no
Topology	Flyback	Flyback	Flyback	Flyback	Flyback	Flyback	Flyback	Flyback
Vin Max, V	100	100	100	100	100	100	100	100
Vin Min, V	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5
Vout Max, V	150	150	150	150	150	150	150	150
Vout Maximum	150V	150V	150V	150V	150V	150V	150V	150V
Vswitch Max, V	150	150	150	150	150	150	150	150

Eco Plan

	LT3512EMS#PBF	LT3512EMS#TRPBF	LT3512HMS#PBF	LT3512HMS#TRPBF	LT3512IMS#PBF	LT3512IMS#TRPBF	LT3512MPMS#PBF	LT3512MPMS#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Design Notes

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Micropower Isolated Flyback Converter with Input Voltage Range from 6V to 100V &mdash DN509
PDF, 723 Kb, File published: Oct 24, 2012
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Micropower Isolated Flyback Converter with Input Voltage
Range from 6V to 100V
Design Note 509
Zhongming Ye
Introduction
Flyback converters are widely used in isolated DC/DC
applications because of their relative simplicity and
low cost compared to alternative isolated topologies. Even so, designing a traditional flyback is not
easyвЂ”the transformer requires careful design, and
loop compensation is complicated by the well known
right-half plane (RHP) zero and the propagation delay
of the opto-coupler.
Linear TechnologyвЂ™s no-opto flyback converters, such
as the LT В® 3573, LT3574, LT3575, LT3511 and LT3512,
simplify the design of flyback converters by incorporating a primary-side sensing scheme and running the
converter in boundary mode. The LT8300 high voltage
monolithic isolated flyback converter further simplifies
flyback design by integrating a 260mA, 150V DMOS
power switch, an internal compensation network and a
soft-start capacitor. The LT8300 operates with input supply voltages from 6V to 100V and delivers output power
of up to 2W with as few as five external components.
The LT8300 operates in boundary mode and offers low
ripple Burst ModeВ® operation, enabling the design of …
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Monolithic No-Opto Isolated Flyback Converter Provides Versatile Solution &mdash DN525
PDF, 259 Kb, File published: Feb 10, 2014
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Monolithic No-Opto Isolated Flyback Converter Provides
Versatile Solution
Design Note 525
George Qian
Introduction
Traditionally, isolated power supplies use an optocoupler in the feedback loop to transfer regulation
information across the isolation barrier. Unfortunately,
an opto-couplerвЂ™s gain characteristic varies widely over
temperature and lifetime, increasing the difficulty of
power supply loop compensation.
Linear TechnologyвЂ™s line of no-opto flyback converters,
such as the LTВ®3573, LT3574, LT3575, LT3511, LT3512
and LT8300, simplify flyback design by incorporating
a primary-side sensing scheme, thereby eliminating
the need for an opto-isolator.
The LT8302 monolithic no-opto flyback converter
has an integrated 65V/3.6A DMOS power switch with
internal loop compensation and soft-start. The LT8302
can operate from an input voltage as low as 2.8V to
42V, and deliver output power up to 18W. It offers
low ripple Burst Mode В® operation at light loads, providing low standby power loss, and features a low
component count.
Performance and Ease of Use …

Model Line

Series: LT3512 (8)

LT3512EMS#PBF LT3512EMS#TRPBF LT3512HMS#PBF LT3512HMS#TRPBF LT3512IMS#PBF LT3512IMS#TRPBF LT3512MPMS#PBF LT3512MPMS#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