FAN5341 Fairchild Semiconductor, FAN5341 Datasheet - Page 3

• Manufacturer Part Number: FAN5341
• Description: Fan5341 Series Boost Led Driver With Integrated Schottky Diode And Single-wire Digital Interface
• Manufacturer: Fairchild Semiconductor

© 2009 Fairchild Semiconductor Corporation
FAN5341 • Rev. 1.0.0
Pin Configuration
Pin Definitions
Pin #
1
2
3
4
5
6
Name
VOUT
GND
VIN
SW
EN
FB
Description
Boost Output Voltage. Output of the boost regulator. Connect the LEDs to this pin. Connect C
(Output Capacitor) to GND.
Input Voltage. Connect to power source and decouple with C
Enable Brightness Control. Program dimming levels by driving pin with digital pulses.
Voltage Feedback. The boost regulator regulates this pin to 0.253V to control the LED string current.
Tie this pin to a current setting resistor (R
Switching node. Tie inductor L1 from VIN to SW pin.
Ground. Tie directly to a GND plane.
VOUT
VIN
EN
Figure 3. UMLP6 Package, ^Top View
1
2
3
GND
P1
3
SET
) between GND and the cathode of the LED string.
6
5
4
IN
to GND.
GND
SW
FB
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OUT