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Analog Devices LT8316 | Demoboard DC2793A

High VIN No Opto Synchronous Flyback Converter

Overview

TopologyBuck Converter
Input voltage140-450 V
Switching frequency3.5-142 kHz
Output 15.25 V / 7 A

Description

The LT®8316 is a micropower, high voltage flyback con-troller. No opto-isolator is needed for regulation. The device samples the output voltage from the isolated fly-back waveform appearing across a third winding on the transformer. Quasi-resonant boundary mode operation improves load regulation, reduces transformer size, and maintains high efficiency. At start-up, the LT8316 charges its INTVCC capacitor via a high voltage current source. During normal operation, the current source turns off and the device draws its power from a third winding on the transformer minimizing standby power dissipation. The LT8316 operates from a wide range of input supply voltages and can deliver up to 100W of power. It is available in a thermally enhanced 20-pin TSSOP package with four pins removed for high-voltage spacing.

Features

Spacing

Typical applications

  • Electric Vehicles and Battery Stacks
  • Isolated Telecom, Automotive, Industrial, Medical Power Supplies / Isolated Off-Line Housekeeping Power Supplies / Multioutput Isolated Power Supplies for Inverter Gate Drives

More information

Products

Order Code Data­sheet Downloads Status Product seriesL
(mm)
f
(mm)
Pins (Value)
(pcs)
RowsGenderTypeIR
(A)
Packaging Samples
62000311121SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.00 mm THT Pin Header 6 3 Single Pin Header Straight 2 Bag
702933000SPEC
3 files Active i| Production is active. Expected lifetime: >10 years.WA-SNSR Self-Retaining Spacer 9.5 4.8
Order Code Data­sheet
62000311121SPEC
702933000SPEC
Samples
Order Code Data­sheet Downloads Status Product seriesL
(mm)
f
(mm)
Pins (Value)
(pcs)
RowsGenderTypeIR
(A)
Packaging Samples