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LM27952 Fiches technique(PDF) 6 Page - Texas Instruments

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No de pièce LM27952
Description  LM27952 White LED Adaptive 1.5X/1X Switched Capacitor Current Driver
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
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LM27952 Fiches technique(HTML) 6 Page - Texas Instruments

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LM27952
SNVS364B – MAY 2005 – REVISED MAY 2013
www.ti.com
Typical Performance Characteristics
Unless otherwise specified: TA = 25°C, 4 LEDs, VDX = 0.45V, VIN = 3.6V, VEN = VIN, VPWM = VIN, C1 = C2 = 1µF, CIN = COUT =
3.3µF. Capacitors are low-ESR multi-layer ceramic capacitors (MLCC's).
LED Current Regulation
LED Current Regulation
vs.
vs.
Input Voltage
Input Voltage
Figure 2.
Figure 3.
Average LED Current Regulation
Average LED Current Regulation
vs.
vs.
Input Voltage
Input Voltage
Figure 4.
Figure 5.
Efficiency
LED Current
vs.
vs.
Input Voltage
RSET
Figure 6.
Figure 7.
6
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