MX841
Circuit Application Driving 15 White LED’s
IXYS
Vbattery 3.0V - 5.0V
22uF 35V
0.1uF in Parallel
26K Ohms @ 3.0V
6.8uH
I pk =1.7A
1N5817
V F =0.3V
Vboost
22uF 35V
0.1uF in Parallel
57K Ohms @ 5.0V
5
1
4
OVD
6
20K Ohms
CTRL 7
CTL/SLEEP
MX841
Isense
8
(Dimming Control)
Analog
Switch
Rsense
5 Ohms
5 Ohms
5 Ohms
GND
2
GND
3
8-LEAD SOI
IXYS Corporation makes no representations or warranties with respect to the accuracy or completeness of the contents of this
publication and reserves the right to make changes to specifications and product descriptions at any time without notice. Neither
circuit patent licenses nor indemnity are expressed or implied. Except as set forth in IXYS’ Standard Terms and Conditions of Sale,
IXYS Corporation assumes no liability whatsoever, and disclaims any expressed or implied warranty, relating to its products
including, but not limited to, the implied warranty of merchantability, fitness for a particular purpose, or infringement of any
intellectual property right .
MX841
Drawing No. 17023
5
Preliminary
03/10/05
www.ixys.net
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