Data Sheet
Data Sheet
©2014
Würth Elektronik eiSos GmbH & Co. KG - REV 0.1
PRELIMINARY
15/ 21
172946001
MagI³C Power Module Product Family
LDHM - LED Step Down High Current Module
R APPLICATIONS
The MagI³C LED driver module for constant current is easy-to-use for current solutions capable of driving up to a
450 mA load with exceptional power conversion efficiency. They are available in an innovative package that
enhances thermal performance and allows for hand or machine soldering. Following application circuits show
possible operating configurations.
APPLICATION CIRCUIT R1
H i g h P o w e r L E D A r r a y
0 6 S
M od ul e
E x p o s e d P a d ( E P )
o n t h e b a c k s i d e ,
C o n n e c t t o G N D
1 2 3 4 5 6 7
L E D +
L E D +
D I M
G N D
V R E F
I A D J
L E D -
C
I N
R
V R E F
R
I A D J
V
I N
C
O U T
P W M
Bill of Materials for Design Example: R1a
Recommended component values: T
A
= 25°C ; VIN = up to 60V; LEDs up to 16; * parts for better EMI
I
LED
300 mA
350 mA
450 mA
R
IADJ
499 kΩ
short
short
R
VREF
open
open
10.5 kΩ
C
IN
2.2 µF ; 100 V ; X7R
C
OUT
*
2.2 µF ; 100 V ; X7R