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LT3748IMS#PBF - 

DC/DC Controller, 5V to 100V, 1 Output, Flyback, MSOP-16

LT3748IMS#PBF - DC/DC Controller, 5V to 100V, 1 Output, Flyback, MSOP-16

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Manufacturer Part No:
LT3748IMS#PBF
Order Code:
1898624
Technical Datasheet:
LT3748IMS#PBF   Datasheet
See all Technical Docs

Product Overview

The LT3748IMS#PBF is a 100V Isolated Flyback Controller specifically designed for the isolated flyback topology and capable of high power. It drives a low side external N-channel power MOSFET from an internally regulated 7V supply. No third winding or opto-isolator is required for regulation as the part senses the isolated output voltage directly from the primary-side flyback waveform. The LT3748 utilizes boundary mode to provide a small magnetic solution without compromising load regulation. Operating frequency is set by load current and transformer magnetizing inductance. The gate drive of the LT3748 combined with a suitable external MOSFET allow it to deliver load power up to several tens of watts from input voltages as high as 100V.
  • 1.9A Average gate drive source and sink current
  • Boundary mode operation
  • No transformer third winding or opto-isolator required for regulation
  • Primary-side winding feedback load regulation
  • VOUT set with two external resistors
  • INTVCC pin for control of gate driver voltage
  • Programmable soft-start
  • Programmable under-voltage lockout

Applications

Communications & Networking, Automotive, Industrial, Power Management

Product Information

:
5V
:
100V
:
1 Output
:
-
:
MSOP
:
16Pins
:
-
:
Flyback
:
-40°C
:
125°C
:
-
:
-
:
MSL 1 - Unlimited
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