infineon BCR402R 20ma-60maLED 驱动方案 A pp l ic a t io n N o t e, R e v . 2. 0 , J a n. 2 00 7 A p p li c a t i o n N o t e N o . 0 6 6 B C R 4 0 2 R : L i g h t E m i t ti n g D i o d e ( L E D ) D r i v er I C P r o v i d e s C o ns t a n t L E D C u r r e n t I n d e p e nd e n t o f S u pp l y V ol t a g e V a r i a t i o n R F & P r o t e c ti o n D e v i c e s Edition 2007-01-04 Published by Infineon Technologies AG 81726 München, Germany Infineon Technologies AG 2009. All Rights Reserved. LEGAL DISCLAIMER THE INFORMATION GIVEN IN THIS APPLICATION NOTE IS GIVEN AS A HINT FOR THE IMPLEMENTATION OF THE INFINEON TECHNOLOGIES COMPONENT ONLY AND SHALL NOT BE REGARDED AS ANY DESCRIPTION OR WARRANTY OF A CERTAIN FUNCTIONALITY, CONDITION OR QUALITY OF THE INFINEON TECHNOLOGIES COMPONE……