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reference designLT8302 | Demoboard DC2014A

Analog Devices LT8302 | Demoboard DC2014A

Micropower No-Opto Isolated Flyback Converter

Overview

TopologyFlyback Converter
Input voltage10-30 V
Switching frequency345 kHz
Output 15.25 V / 2.2 A

Description

Demonstration circuit 2014A is a micropower No-Optoisolated flyback converter featuring the LT®8302. This democircuit outputs 5V, and maintains tight regulation with aload current from 10mA to 2.2A over an input voltagefrom 10V to 30V. The output current capability increaseswith the input voltage.

Features

3V to 42V Input Voltage Range3.6A, 65V Internal DMOS Power SwitchLow Quiescent Current:106µA iSleep Mode380µA iActive ModeQuasi-Resonant Boundary Mode Operation at Heavy LoadLow Ripple Burst Mode Operatioat Light LoadMinimum Load < 0.5% (Typ) of Full OutputNo Transformer Third Winding or Opto-Isolator Required for Output Voltage RegulationTemperature Compensatiofor Output DiodeOutput Short-Circuit Protection

More information

Products

Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
VIN
VOut1(V)
IOut1(A)
Vaux(V)
L(µH)
n
ISAT(A)
LS(µH)
VT(V (AC))
Size
IC Reference
SamplesAvailability & Sample
750311564
SPECWE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748, 10 - 40 V (DC), 5 V
Simu­lation
Availability
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748
Input Voltage 10 - 40 V (DC)
Output Voltage 15 V
Output Current 13 A
Auxiliary Voltage8 V
Inductance9.07 µH
Turns Ratio3:1:1.75 
Saturation Current8 A
Leakage Inductance0.25 µH
Insulation Test Voltage1500 V (AC)
SizeEP13 
IC ReferenceLT3575 & LT3748 
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