NUD4301 datasheet(4/6 Pages) ONSEMI | Dual Low Dropout Voltage LED Driver/Current Source

Nombre de pieza

Descripción

NUD4301

Dual Low Dropout Voltage LED Driver/Current Source ( 6 Page)

ONSEMI

4 page

NUD4301

http://onsemi.com

TYPICAL PERFORMANCE CURVES

(TA = 255C, unless otherwise noted)

ILED1

ILED2

Figure 3. Current Limit Adjustment

Figure 4. Typical Line Regulation Performance

(VLED = 3.4 V, Rsense = 4.7 W)

Rsense (W)

VCC (V)

100

7.0

6.0

5.0

4.0

3.0

2.0

1.0

5.0

Figure 5. Typical Current Regulation vs. Vdrop

(Vdrop = VDS + VRsense)

Vdrop (V)

0.30

0.15

0.10

0.05

5.0

0.20

0.25

ILED1

ILED2

ILED1

ILED2

Figure 6. Typical Current Regulation vs. Vdim

(VLED = 3.4 V, Rsense = 4.7 W)

Vdim (V)

3.6

1.8

1.5

1.2

0.9

0.6

0.3

5000

10000

15000

20000

2.1

3.0 3.3

2.4 2.7

1 2 3 4 5 6

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