SP6691 datasheet(6/15 Pages) SIPEX

6 / 15 page

Date: 5/25/04

SP6691 Micro Power Boost Regualtor, Series White LED Driver

PERFORMANCE CHARACTERISTICS: Continued

Refer to the typical application circuit, TAMB = 25°C, unless otherwise specified.

Figure 13. Quiescent Current IQ vs. VIN

Figure 14. Shutdown Pin Current vs. VIN

Figure 15. IPK Current Limit vs. VIN

Figure 17. Feedback Voltage vs. Temperature

1.2

1.8

2.4

3.6

4.2

4.8

5.4

Input Voltage (V)

Tamb=-25C

Tamb=25C

Tamb=85C

1.2

1.8

2.4

3.6

4.2

4.8

5.4

Input Voltage (V)

100

200

300

400

500

600

1.2

1.8

2.4

3.6

4.2

4.8

5.4

Input Voltage (V)

1.20

1.21

1.22

1.23

1.24

1.25

-30

-10

Temperature (C)

Figure 16. Switch Saturation Voltage VCESAT vs.

Temperature (ISW = 450mA)

Figure 18. Average IO vs. SHDN Duty Cycle (VIN=3.3V,

Standard 4x20mA WLED Evaluation Board, PWM

Frequency 100Hz

100

150

200

250

300

350

400

-30

-10

Temperature (C)

020

406080

100

PWM Duty Cycle (%)

SP6691 Datasheet(PDF) 6 Page - Sipex Corporation

SP6691 Datasheet(HTML) 6 Page - Sipex Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Datasheet Download

Link URL