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FAN5345S20X Folha de dados(PDF) 3 Page - Fairchild Semiconductor

Nome de Peças FAN5345S20X
Descrição Electrónicos  Series Boost LED Driver with Single-Wire Digital Interface
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Fabricante Electrônico  FAIRCHILD [Fairchild Semiconductor]
Página de início  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

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© 2011 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN5345 • Rev. 1.0.0
3
Pin Configuration
1
2
3
6
5
4
SW
VOUT
EN
VIN
GND
FB
Figure 3. Pin Assignments Top View
Pin Definitions
Pin #
Name
Description
5
VOUT
Boost Output Voltage
. Output of the boost regulator. Connect the LEDs to this pin. Connect COUT
(output capacitor) to GND.
1
VIN
Input Voltage
. Connect to power source and decouple with CIN to GND.
4
EN
Enable Brightness Control
. Program dimming levels by driving pin with digital pulses.
3
FB
Voltage Feedback
. The boost regulator regulates this pin to 0.250V to control the LED string current.
Tie this pin to a current setting resistor (RSET) between GND and the cathode of the LED string.
6
SW
Switching Node
. Tie inductor L1 from VIN to SW pin.
2
GND
Ground
. Tie directly to a GND plane.


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