LM3502_15 datasheet(9/28 Pages) TI1

部件名	LM3502

功能描述	Step-Up Converter for White LED Applications

Download	28 Pages

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制造商	TI1 [Texas Instruments]

网页	http://www.ti.com

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5.0

7.5

10.0

12.5

15.0

17.5

20.0

22.5

25.0

27.5

30.0

32.5

35.0

LED CURRENT (mA)

40

45

50

55

60

65

70

75

80

85

90

2.5

VIN = 5.5V

VIN = 3.3V

VIN = 2.7V

VIN = 4.2V

VIN = 3V

2

12

22

32

42

52

62

LED CURRENT (mA)

40

45

50

55

60

65

70

75

80

85

90

VIN = 2.7V

VIN = 3V

VIN = 3.3V

VIN = 4.2V

VIN = 5.5V

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

110

120

130

TEMPERATURE (

oC)

1.75

1.95

-40

1.80

1.85

1.90

VIN = 2.5V

3.0

3.5

4.0

4.5

5.0

5.5

INPUT VOLTAGE (V)

1.50

2.00

2.50

3.00

3.50

4.00

2.5

25

oC

125

oC

-40

oC

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

110

120

130

TEMPERATURE (

oC)

0.93

0.94

0.95

0.96

0.97

0.98

0.99

1.00

1.01

1.02

1.03

-40

VIN = 2.5V

3.0

3.5

4.0

4.5

5.0

5.5

INPUT VOLTAGE (V)

0.400

0.440

0.480

0.520

0.560

0.600

2.5

-40

oC

0.420

0.460

0.500

0.540

0.580

125

oC

25

oC

LM3502

www.ti.com

SNVS339B – SEPTEMBER 2005 – REVISED MAY 2013

Typical Performance Characteristics

( Circuit in Figure 1: L = DO1608C-223 and D = MBRM140T3. Efficiency:

η = POUT/PIN = [(VOUT – VFb) * IOUT]/[VIN * IIN]. TA=

25°C, unless otherwise stated.)

IQ (Non-Switching)

Switching Frequency

vs

VIN

Temperature

Figure 7.

Figure 8.

IQ (Switching)

vs

VIN

Temperature

Figure 9.

Figure 10.

10 LED Efficiency

8 LED Efficiency

vs

LED Current

Figure 11.

Figure 12.

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Product Folder Links: LM3502

类似零件编号 - LM3502_15

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National Semiconductor ...	LM3502ITL-16	928Kb / 18P	Step-Up Converter for White LED Applications
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LM3502 数据表(PDF) 9 Page - Texas Instruments

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类似零件编号 - LM3502_15

类似说明 - LM3502_15

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LM3502 数据表(PDF) 9 Page - Texas Instruments

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