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VPN12AD02-FU Datasheet(PDF) 12 Page - Cyntec Co., Ltd.

No. de pieza VPN12AD02-FU
Descripción Electrónicos  Buck-Boost, High Efficiency POL Module
PDF  22 Pages
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Fabricante Electrónico  CYNTEC [Cyntec Co., Ltd.]
Página de inicio  http://www.cyntec.com/
Logo CYNTEC - Cyntec Co., Ltd.

VPN12AD02-FU Datasheet(HTML) 12 Page - Cyntec Co., Ltd.

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Rev. P05
12
VPN12AD02-FU
Switching Frequency Setup:
The switching frequency can be set from 200 kHz to 400 kHz by an external resistor connected
from the FREQ pin to GND. Select the switching frequency according to the following
approximate formulas.
46023
FSW[kHz]
(
)
1.25
RFREQ[kΩ] =
.
FIG.27 Switching Frequency vs Frequency Select Resistor.
LED Constant Current Setting in Constant Current Mode
VFBH-FBL typical value is 150mV. Set the LED current with an external resistor according to the
following approximate formulas.
ILED = VFBH-FBL
RCS
VOUT
RCS
GND
FBL
FBH
ILED
FIG.28 Current Setting in Constant Current Mode



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