AIF25R48_03 Datasheet, PDF (2/29 Pages) Astec America, Inc – Isolated DC/DC Converter Module

AIF25R48 Series Technical Reference Note
Contents
Options ................................................................................................................................................................. 1
Description............................................................................................................................................................ 1
Electrical Specifications ............................................................................................................................................ 4
Input Specifications ............................................................................................................................................... 4
Absolute Maximum Ratings .................................................................................................................................. 5
Output Specifications ............................................................................................................................................ 6
Output Specifications (Cont).................................................................................................................................. 7
Feature Specifications............................................................................................................................................ 8
Characteristic Curves ................................................................................................................................................ 9
Performance Curves – Efficiency........................................................................................................................... 9
Performance Curves – Output Performance Curves................................................................................................ 9
Performance Curves – Transient Response........................................................................................................... 10
Performance Curves – Transient Response (Cont)................................................................................................ 10
Performance Curves – Startup Characteristics ...................................................................................................... 11
Performance Curves – Startup from CNT1 Control .............................................................................................. 11
Feature Description ................................................................................................................................................. 12
CNT Function ..................................................................................................................................................... 12
Trim .................................................................................................................................................................... 13
Minimum Load Requirement ............................................................................................................................... 14
Output Over-Current and Short Protection ........................................................................................................... 14
Output Over-Voltage Protection ........................................................................................................................... 14
Over Temperature Protection ............................................................................................................................... 14
Current Sharing ................................................................................................................................................... 15
Sense................................................................................................................................................................... 16
AUX/IOG/TMP................................................................................................................................................... 18
Output Filter........................................................................................................................................................ 18
Decoupling.......................................................................................................................................................... 19
Ground Loops ..................................................................................................................................................... 19
Design Consideration .............................................................................................................................................. 21
Typical Application ............................................................................................................................................. 21
Fusing ................................................................................................................................................................. 21
Input Reverse Voltage Protection ......................................................................................................................... 21
DATE: May 28, 2003
MODEL : AIF25R48 SERIES
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