ILD4035 datasheet(19/29 Pages) INFINEON

Part #	ILD4035

Description	350 mA LED Driver

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Manufacturer	INFINEON [Infineon Technologies AG]

Direct Link	http://www.infineon.com

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ILD4035

350 mA LED Driver

Basic Application Information

Data Sheet

19

Revision 1.0, 2010-11-11

R

sense = 303 mΩ, L= 100 μH

V

s = 24 V, 6 LED with typ. VF = 3 V

I

LED vs. VSupply and number of LEDs

F

Switch vs. VSupply and number of LEDs

Efficiency vs.

V

Supply and number of LEDs

Duty Cycle vs.

V

Supply and number of LEDs

ILD4035_ILED_303m_100u.vsd

ILED (Rs=303m; L=100uH)

0.250

0.275

0.300

0.325

0.350

0.375

0.400

0.425

0.450

5

1015

2025

3035

4045

Vs (V)

1LED

2LED

3LED

4LED

5LED

6LED

7LED

8LED

9LED

10LED

11LED

ILD4035_Switching_Frequency_303m_100u.vsd

Switching Frequency (Rs=303m; L=100uH)

5.00E+04

1.00E+05

1.50E+05

2.00E+05

2.50E+05

3.00E+05

3.50E+05

4.00E+05

4.50E+05

5

101520

2530354045

Vs (V)

1LED

2LED

3LED

4LED

5LED

6LED

7LED

8LED

9LED

10LED

11LED

ILD4035_Efficiency_303m_100u.vsd

Efficiency (Rs=303m; L=100uH)

60

65

70

75

80

85

90

95

100

5

10

15202530

354045

Vs (V)

1LED

2LED

3LED

4LED

5LED

6LED

7LED

8LED

9LED

10LED

11LED

ILD4035 _Duty_Cycle_303m_100u.vsd

Duty Cycle (Rs=303m; L=100uH)

20%

30%

40%

50%

60%

70%

80%

90%

100%

5

1015

2025

3035

4045

Vs (V)

1LED

2LED

3LED

4LED

5LED

6LED

7LED

8LED

9LED

10LED

11LED

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ILD4035 Datasheet(PDF) 19 Page - Infineon Technologies AG

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