LM3519 datasheet(8/20 Pages) TI1

Part #	LM3519

Description	High Frequency Boost White LED Driver with High-Speed PWM Brightness Control

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Manufacturer	TI1 [Texas Instruments]

Direct Link	http://www.ti.com

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-40

-20

0

20

40

60

80

100

TEMPERATURE (°C)

320

360

370

380

390

400

350

340

330

-40

-20

0

20

40

60

80

100

TEMPERATURE (°C)

500

520

540

560

580

600

510

530

550

570

590

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

VIN (V)

25°C and -40°C

85°C

700

800

900

1000

1100

1200

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

VIN (V)

3.3 PH

2.2 PH

1 PH

600

800

900

1000

1100

1200

700

2.7

3.0

3.3

3.6

3.9

4.2

4.5

VIN (V)

1 PH

3.3 PH

2.2 PH

3 LEDS

100

150

200

250

300

350

400

2.7

3.0

3.3

3.6

3.9

4.2

4.5

VIN (V)

1 PH

3.3 PH

2.2 PH

2 LEDS

100

150

200

250

300

350

400

LM3519

SNVS394A – AUGUST 2005 – REVISED SEPTEMBER 2005

www.ti.com

Typical Performance Characteristics (continued)

(See Figure 1: VIN = 3.6V, CIN = 4.7µF and COUT = 1µF, L = 2.2µH and 4 LEDs. TA = +25°C, unless otherwise stated.)

Peak Inductor Current

vs

VIN

Current Limit

vs

VIN (4LEDs, 1µH)

VIN

Iq (non switching)

Iq (switching)

vs

Temperature

8

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