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reference designICL8201 | Demoboard AN-REF-ICL8201_GU10

Infineon Technologies ICL8201 | Demoboard AN-REF-ICL8201_GU10

7.5W 180mA Single Stage Floating Buck LED (GU10) Converter with ICL8201 & IPU50R3K0CE

Overview

TopologyBuck Converter
Input voltage90-265 V
Output 147 V / 0.18 A
IC revision1.0

Description

This application note is an engineering report of GU10 LED lamp reference design for universal input 7.5W 180mA converter. The converter is using ICL8201 (SOT23-6-1), average current controlled, non-isolatedsingle stage buck topology in cascode structure LED driver and IPU50R3K0CE (IPAK), a CE series of high voltage power CoolMOS™.With this cascode structure, system can achieve fast IC start up without the need to use a costly depletion MOSFET or alternatively a low cost start up resistor that causes continuous power losses during normal operation. This reference design is a single stage design with high efficiency and powerfactor, critical conduction operation mode with single choke(without auxiliary winding), truly regulated output current over a wide input and output voltage range, good EMI performance and various modes of protections for high reliability with minimum external components.

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L(µH)
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7447462102
SPECWE-TI Radial Leaded Wire Wound Inductor, 1000 µH, 0.25 A
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TI Radial Leaded Wire Wound Inductor
Inductance1000 µH
Rated Current0.25 A
Saturation Current @ 10%0.27 A
DC Resistance6 Ω
Self Resonant Frequency2.3 MHz
VersionHeat Shrinking Tube 
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750342584
SPECPower Inductor, –, –
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Status Activei| Production is active. Expected lifetime: >10 years.
Product series Power Inductor
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