LT3002

RECOMMENDED FOR NEW DESIGNS

36V 10W No-Opto Isolated Flyback Converter

Part Models
4
1ku List Price
Starting From $3.30

Part Details

  • 4V to 36V Input Voltage Range
  • 3.6A, 65V Internal DMOS Power Switch
  • Low Quiescent Current
  • Quasi-Resonant Boundary Mode Operation at Heavy Load
  • Low Ripple Burst Mode® Operation at Light Load
  • Minimum Load < 0.5% (Typ) of Full Output
  • No Transformer Third Winding or Opto-Isolator Required for Output Voltage Regulation
  • Accurate EN/UVLO Threshold and Hysteresis
  • Temperature Compensation for Output Diode
  • Output Short-Circuit Protection
  • Thermally Enhanced 8-Lead SO Package
LT3002
36V 10W No-Opto Isolated Flyback Converter
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Documentation

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Software Resources

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Tools & Simulations

LTspice 1


Models for the following parts are available in LTspice:

  • LT3002
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.


Evaluation Kits

eval board
DC3077A

LT3002 Demo Board | Micropower No-Opto Isolated Flyback Converter with 65V/3.5A Switch

Product Details

Demonstration circuit 3077A is a compact no-opto isolated flyback converter featuring the LT3002. The DC3077A outputs 12V and maintains tight regulation with a load current from 5mA up to 1.1A over an input voltage from 10V to 30V. The output current capability increases with the input voltage, as shown in the Performance Summary table.

Transformer leakage inductance causes a voltage spike on the primary side after the power switch turns off. The leakage inductance spike is limited within the MOSFET’s voltage rating of 65V with an RC snubber and a TVS clamp which damp the ringing and clamp the MOSFET drain voltage to a safe level.

The Performance Summary table summarizes the performance of the demo board at room temperature. The DC3077A demo circuit can be easily modified for different applications with some pre-designed transformers.

The LT3002 data sheet gives a complete description of the part, operation and application information. The data sheet must be read in conjunction with this quick start guide for demo circuit 3077A.

DC3077A
LT3002 Demo Board | Micropower No-Opto Isolated Flyback Converter with 65V/3.5A Switch

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