LP8556 datasheet(23/52 Pages) TI

23 / 52 page

LP8556

www.ti.com

SNVS871B – JULY 2012 – REVISED SEPTEMBER 2012

Table 5. Setting Switching and PWM Dimming Frequency with an External Resistor

RFSET [kΩ] (Tolerance)

fSW [kHz]

fPWM [Hz] (Resolution)

Floating or FSET pin pulled HIGH

1250

9616 (11-bit)

470k - 1M (±5%)

312

2402 (12-bit)

300k, 330k (±5%)

312

4808 (12-bit)

200k (±5%)

312

6010 (11-bit)

147k, 150k, 154k, 158k (±1%)

312

9616 (11-bit)

121k (±1%)

312

12020 (10-bit)

100k (±1%)

312

14424 (10-bit)

86.6k (±1%)

312

16828 (10-bit)

75.0k (±1%)

312

19232 (10-bit)

63.4k (±1%)

625

2402 (12-bit)

52.3k, 53.6k (±1%)

625

4808 (12-bit)

44.2k, 45.3k (±1%)

625

6010 (11-bit)

39.2k (±1%)

625

9616 (11-bit)

34.0k (±1%)

625

12020 (10-bit)

30.1k (±1%)

625

14424 (10-bit)

26.1k (±1%)

625

16828 (10-bit)

23.2k (±1%)

625

19232 (10-bit)

20.5k (±1%)

1250

2402 (12-bit)

18.7k (±1%)

1250

4808 (12-bit)

16.5k (±1%)

1250

6010 (11-bit)

14.7k (±1%)

1250

9616 (11-bit)

13.0k (±1%)

1250

12020 (10-bit)

11.8k (±1%)

1250

14424 (10-bit)

10.7k (±1%)

1250

16828 (10-bit)

9.76k (±1%)

1250

19232 (10-bit)

FSET pin shorted to GND

1250

Same as PWM input

Submit Documentation Feedback

Product Folder Links: LP8556

LP8556 Datasheet(PDF) 23 Page - Texas Instruments

LP8556 Datasheet(HTML) 23 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52

Datasheet Download

Link URL