LT8316: 600VIN Micropower No-Opto Isolated Flyback Controller

The LT8316 is a micropower, high voltage flyback controller. No opto-isolator is needed for regulation. The device samples the output voltage from the isolated flyback waveform appearing across a third winding on the transformer.

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Description

At start-up, the LT8316 charges its INTVCCCC 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.

Drawings/Packages

0719 LT8316 Drawings-Package 1

0719 LT8316 Drawings-Package 2

Key Features

- Wide Input Voltage Range: 16V to 600V
- No Opto-Isolator Required for Regulation
- Quasi-Resonant Boundary Mode Operation
- Constant-Current and Constant-Voltage Regulation
- Low-Ripple Light Load Burst Mode® Operation
- Low Quiescent Current: 75μA
- Programmable Current Limit and Soft-Start
- TSSOP Package with High-Voltage Pin Spacing

General Applications

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

Evaluation Board

YES — The LT8316 can be evaluated with the DC2793A, DC2718A and DC2781A.


See related product

LT8316EFE#PBF

Analog Devices DC to DC Controllers View

See related product

LT8316IFE#PBF

Analog Devices DC to DC Controllers View

See related product

DC2781A

Analog Devices Power Management Development Boards and Kits View

See related product

LT8316EFE#TRPBF

Analog Devices DC to DC Controllers View

See related product

LT8316IFE#TRPBF

Analog Devices DC to DC Controllers View

See related product

DC2793A

Analog Devices Power Management Development Boards and Kits View

See related product

DC2718A

Analog Devices Power Management Development Boards and Kits View

 

 

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