L5101(2009) 查看數據表（PDF） - Unisonic Technologies

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L5101
(Rev.:2009)

WHITE LED STEP-UP CONVERTER

Unisonic Technologies 

L5101

„ PIN CONFIGURATION

LINEAR INTEGRATED CIRCUIT

„ PIN DESCRIPTION

PIN NO.

PIN NAME

SYMBOL

DESCRIPTION

1

Shutdown

SHDN Tie to higher than 1.5V to enable device, 0.3V or less to disable device.

2

Ground

GND

Reference voltage is 95mV. Connect cathode of lowest LED and

3

Feedback

FB

resistor here. Calculation formula: RFB=95mV/ILED

4

Switch

SW Connect inductor/diode here. Minimize trace area at this pin to reduce

EMI.

5

Power input

VIN Bypass VIN to GND with a capacitor sitting as close to VIN as possible.

6 Over voltage protection OVP The internal NPN will turn off when VOUT >27V.

UNISONIC TECHNOLOGIES CO., LTD

www.unisonic.com.tw

2 of 10

QW-R103-026.B

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