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ICL8201 Datasheet(PDF) 5 Page - Infineon Technologies AG

Part # ICL8201
Description  AC/DC Buck Cont rol ler wi th PFC for LED Lamps
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Manufacturer  INFINEON [Infineon Technologies AG]
Direct Link  http://www.infineon.com
Logo INFINEON - Infineon Technologies AG

ICL8201 Datasheet(HTML) 5 Page - Infineon Technologies AG

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ICL8201
AC/DC Buck Controller with PFC for LED Lamps
Data Sheet
5
Revision V2.0, 2015-05-25
Table of Contents
Revision History ....................................................................................................................................................4
Table of Contents ..................................................................................................................................................5
1
Block Diagram ...................................................................................................................................8
2
IC and Application Feature Overview..............................................................................................9
2.1
Application Feature SET .....................................................................................................................9
2.2
IC Feature SET ...................................................................................................................................9
2.3
Regulation Feature SET......................................................................................................................9
2.4
Protection Feature SET.....................................................................................................................10
3
Pin Configuration and Functionality .............................................................................................12
3.1
Pin Configuration with PG-SOT23-6-1..............................................................................................12
3.2
Package ............................................................................................................................................12
3.3
Pin Description ..................................................................................................................................12
4
Functional Description ...................................................................................................................14
4.1
Typical Application Circuit .................................................................................................................14
4.2
Internal Functional Description..........................................................................................................15
4.2.1
VCC Pre-Charging and Typical VCC voltage profile During Start-up .............................................15
4.2.2
Soft Start ......................................................................................................................................16
4.2.3
Normal Regulation Operation ......................................................................................................17
4.2.4
Zero Current Detection ................................................................................................................17
4.2.5
Peak Detection.............................................................................................................................19
4.2.6
Voltage to Current Converter .......................................................................................................20
4.2.7
ON time generation ......................................................................................................................20
4.2.8
How to calculate output average current .....................................................................................21
4.2.9
Leading Edge Blanking ................................................................................................................21
4.2.10
Driver Stage .................................................................................................................................21
4.3
System Functional description ..........................................................................................................22
4.3.1
Start-Up behaviour .......................................................................................................................22
4.3.1.1
Start-Up: Into Normal Operation .............................................................................................22
4.3.1.2
Start-Up: Soft-Start Phase ......................................................................................................23
4.3.1.3
Start-Up: Short Output ............................................................................................................24
4.3.1.4
Start-Up: Floating Load Protection .........................................................................................25
4.3.1.5
Start-Up and Run Mode: Short Winding Protection................................................................26
4.3.2
Run Mode behaviour....................................................................................................................27
4.3.2.1
Typical Curves during RUN Mode ..........................................................................................27
4.3.2.2
Run Mode: Short Output .........................................................................................................28
4.3.2.3
Run Mode: Floating Load Protection ......................................................................................29
4.3.3
Intelligent Over-Temperature Protection (iOTP) ..........................................................................30
4.3.4
IC Working and Typical BUCK Curves ........................................................................................31
4.3.4.1
Critical Conduction operation with Constant TON Time and variable Frequency ....................31
4.3.4.2
Typical Curves of a BUCK Converter .....................................................................................32
5
Absolute Maximum Ratings and thermal Characteristics ..........................................................33
5.1
Absolute Maximum Ratings ..............................................................................................................33
5.2
Thermal Characteristics ....................................................................................................................34
6
Electrical Characteristics ...............................................................................................................35


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