MP1523 – PRECISION 6-LAMP WHITE LED DRIVER

INITIAL RELEASE

07/04, Rev. 1.6

www.MonolithicPower.com

6

TYPICAL APPLICATIONS / TEST CIRCUITS

Figure 2—One String of up to Six (6) LEDs “without” Open Load Shutdown Option

EN

Up to

6 LEDs

MP1523

1

5

4

2

3

BIAS

GND

EN

FB

SW

V

D1, B130

C2

4.7µF

L1

15µH

CDM4D11

C1

1µF

R2

20

Ω

Point B

No te: Pin 5 connects to Point B to enab le Open Load Shutdown Option

EN

Up to

6 LEDs

MP1523

1

5

4

2

3

BIAS

GND

EN

FB

SW

V

D1, B130

C2

4.7µF

L1

15µH

CDM4D11

C1

1µF

R2

20

Ω

Point A

Note: Pin 5 connects to Point A to eliminate Open Load Shutdown Option