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LP3943ISQ Arkusz danych(PDF) 16 Page - Texas Instruments

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Numer części LP3943ISQ
Szczegółowy opis  RGB, White, Blue 16-LED Fun Light Driver
PDF  25 Pages
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Producent  TI1 [Texas Instruments]
Strona internetowa  http://www.ti.com
Logo TI1 - Texas Instruments

LP3943ISQ Arkusz danych(HTML) 16 Page - Texas Instruments

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VIN (V)
2.3
2.6
2.9
3.2
3.5
3.8
4.1
4.4
4.7
5
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28
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D001
VLEDX = 0.4 V
VLEDX = 0.7 V
LP3943
SNVS256C – NOVMEBER 2003 – REVISED OCTOBER 2015
www.ti.com
8.2.2 Detailed Design Procedure
8.2.2.1 Reducing IQ When LEDs are OFF
In many applications, the LEDs and the LP3943 share the same VDD, as shown in Figure 10. When the LEDs are
off, the LED pins are at a lower potential than VDD, causing extra supply current (ΔIQ). To minimize this current,
consider keeping the LED pins at a voltage equal to or greater than VDD.
Figure 11. Methods to Reduce IQ When LEDs are in OFF State
8.2.3 Application Curve
Figure 12. Typical LED Switch Resistance
16
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