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LP8556 데이터시트(PDF) 21 Page - Texas Instruments

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부품명 LP8556
상세설명  High-Efficiency LED Backlight Driver for Tablets
PDF  63 Pages
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

LP8556 데이터시트(HTML) 21 Page - Texas Instruments

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LP8556
www.ti.com
SNVS871I – JULY 2012 – REVISED MARCH 2016
Product Folder Links: LP8556
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Copyright © 2012–2016, Texas Instruments Incorporated
Table 5. Setting Switching and PWM Dimming Frequency With an External Resistor
RFSET [Ω] (Tolerance)
ƒSW [kHz]
ƒPWM [Hz] (Resolution)
Floating or FSET pin pulled HIGH
1250
9616 (10-bit)
470k - 1M (±5%)
312
2402 (12-bit)
300k, 330k (±5%)
312
4808 (11-bit)
200k (±5%)
312
6010 (10-bit)
147k, 150k, 154k, 158k (±1%)
312
9616 (10-bit)
121k (±1%)
312
12020 (9-bit)
100k (±1%)
312
14424 (9-bit)
86.6k (±1%)
312
16828 (9-bit)
75.0k (±1%)
312
19232 (9-bit)
63.4k (±1%)
625
2402 (12-bit)
52.3k, 53.6k (±1%)
625
4808 (11-bit)
44.2k, 45.3k (±1%)
625
6010 (10-bit)
39.2k (±1%)
625
9616 (10-bit)
34.0k (±1%)
625
12020 (9-bit)
30.1k (±1%)
625
14424 (9-bit)
26.1k (±1%)
625
16828 (9-bit)
23.2k (±1%)
625
19232 (9-bit)
20.5k (±1%)
1250
2402 (12-bit)
18.7k (±1%)
1250
4808 (11-bit)
16.5k (±1%)
1250
6010 (10-bit)
14.7k (±1%)
1250
9616 (10-bit)
13.0k (±1%)
1250
12020 (9-bit)
11.8k (±1%)
1250
14424 (9-bit)
10.7k (±1%)
1250
16828 (9-bit)
9.76k (±1%)
1250
19232 (9-bit)
FSET pin shorted to GND
1250
Same as PWM input



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