MIC2299_11 datasheet(4/14 Pages) MICREL

Part #	MIC2299

Description	3.5A Minimum, 2MHz High Brightness LED Driver

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Manufacturer	MICREL [Micrel Semiconductor]

Direct Link	http://www.micrel.com

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4 / 14 page

Micrel, Inc.

MIC2299

October 2007

4

M9999-101907-B

Typical Characteristics

0

2

4

6

8

10

12

14

16

024

68

10

SUPPLY VOLTAGE (V)

Input Current

vs. Supply Voltage

1.8

1.9

2.0

2.1

2.2

2.3

2.4

TEMPERATURE (°C)

UVLO

vs. Temperature

1.7

1.8

1.9

2.0

2.1

2.2

2.3

2

345

6789 10 11

SUPPLY VOLTAGE (V)

Switching Frequency

vs. Supply Voltage

TCASE - 25°C

1.7

1.8

1.9

2.0

2.1

2.2

2.3

Switching Frequency

vs. Temperature

TEMPERATURE (°C)

160

170

180

190

200

210

220

230

240

2.5

3

3.5

4

4.5

5

5.5

SUPPLY VOLTAGE (V)

LED Current vs.

Supply Voltage (BRT-GND)

TCASE - 30°C

950

960

970

980

990

1000

1010

1020

2.5

3

3.5

4

4.5

5

5.5

SUPPLY VOLTAGE (V)

LED Current vs.

Supply Voltage (BRT Open)

TCASE - 30°C

475

480

485

490

495

500

505

510

515

520

525

2.5

3

3.5

4

4.5

5

5.5

6

SUPPLY VOLTAGE (V)

LED Current vs.

Supply Voltage (RBRT-50k)

TCASE - 30°C

950

960

970

980

990

1000

1010

1020

-40 -20

0

20 40 60 80 100

TEMPERATURE (C)

LED Current vs.

Temperature (BRT Open)

VIN = 3V

0

100

200

300

400

500

600

700

800

900

1000

1100

LED Current

vs. DIM Voltage

0

200

DIM VOLTAGE (mV)

40

80

120

160

50

55

60

65

70

75

80

85

90

95

2.5 3 3.5 4 4.5 5 5.5 6 6.5

SUPPLY VOLTAGE (V)

Efficiency vs.

Supply Voltage (BRT Open)

50

55

60

65

70

75

80

85

90

2.5 3 3.5 4 4.5 5 5.5 6 6.5

SUPPLY VOLTAGE (V)

Efficiency vs.

Supply Voltage (BRT-GND)

0

50

100

150

200

250

300

350

400

450

0 0.5 1 1.5 2 2.5 3 3.5 4

SWITCHING CURRENT (A)

VCSAT

vs. Switching Current

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