MP1523 – PRECISION 6-LAMP WHITE LED DRIVER
INITIAL RELEASE
TYPICAL APPLICATIONS / TEST CIRCUITS
VIN = 2.7 to 25V
L1
15µH
CDM4D11
D1, B130
C1
1µF
Point A
C2
4.7µF
5
1
BIAS
SW
EN
4 EN MP1523
2
GND
FB 3
Up to
6 LEDs
R2
20Ω
Note: Pin 5 connects to Point A to eliminate Open Load Shutdown Option
Figure 2—One String of up to Six (6) LEDs “without” Open Load Shutdown Option
V IN = 2.7 to 25V
C1
1µF
L1
15µH
CDM4D11
D1, B130
C2
4.7µF
Point B
5
1
BIAS
SW
EN
4 EN MP1523
2 GND
FB 3
Up to
6 LEDs
R2
20Ω
Note: Pin 5 connects to Point B to enable Open Load Shutdown Option
Figure 3—One String of up to Six (6) LEDs “with” Open Load Shutdown Option
07/04, Rev. 1.6
www.MonolithicPower.com
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