MP24830 datasheet(4/7 Pages) MPS

Part #	MP24830

Description	Buck- Boost Mode White LED Driver 5V ??90V, Programmable Frequency

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Manufacturer	MPS [Monolithic Power Systems]

Direct Link	http://www.monolithicpower.com

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EV24830-S-00A – EVB DESCRIPTION

EV24830-S-00A Rev.1.1

www.MonolithicPower.com

4

5/4/2014

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

EVB TEST RESULTS

Performance waveforms are tested on the evaluation board.

VEN=5V, VIN=12V, IOUT=1A, L=22μH, TA=25ºC, Unless otherwise noted.

ANALOG DIMMING VOLTAGE ( V )

ILED Line Regulation vs.

VIN

ILED vs. Analog Dimming

VIN =20V, 3LED, IOUT=1A,

FDIM=0.2kHz

ILED vs. PWM Dimming

VIN =25V, 3LED, FDIM=0.2kHz

INPUT VOLTAGE (V)

VIN VOLTAGE (V)

Efficiency vs. Input

Voltage

70

75

80

85

90

95

100

0

2040

6080

100

3LED

10LED

8LED

6LED

LED STRING VOLTAGE ( V )

Efficiency vs. LED

String Voltage

80

84

88

92

96

100

10

15

20

25

30

35

40

VIN=20V

VIN=40V

-0.6

-0.4

-0.2

0.0

0.2

0.4

0.6

10

20

30

40

50

60

70

6LED

3LED

8LED

10LED

0

100

200

300

400

500

0

20

40

60

80

100

0

200

400

600

800

1000

0.7

0.9

1.1

1.3

1.5

1.7

1.9

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MP24830 Datasheet(PDF) 4 Page - Monolithic Power Systems

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