White LED Set-up Converter

EC4501

Page 3 of 10

3F27N-Rev.P001

Ordering Information

Functional Block Diagram

Function Block Diagram of EC4501

Part Number

Package

Marking

Marking Information

EC4501NNB3R

SOT23-6

4501f

1.

Starting with underlined 5, a bar is for

production year 2012. The next bar is mark on

top of 0 is for year 2013. The next bar is mark

on bottom of 0 is for year 2014. The next bar is

mark on top of 1 is year for 2015. The naming

pattern continues with consecutive characters

for later years.

2.

f is the week of production. The big character of

A~Z is for the week of 1~26, and small a~z is

for the week of 27~52.