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UNISONIC TECHNOLOGIES CO., LTD UPSLD01 Preliminary CMOS IC www.unisonic.com.tw 1 of 5 Copyright © 2015 Unisonic Technologies Co., Ltd QW-R125-036.b HIGH POWER FACTOR LINEAR CONSTANT CURRENT LED DRIVER DESCRIPTION UTC UPSLD01 is a high power factor linear constant current LED driver which is applied to LE D lighting. Through the distinctive constant current control technology, it realizes that constant current accuracy is less than ±5% and output current is adjustable through external resistor. High power factor and low harmonic distortion are the particular features. The system is simple without transformer and electrolysis capacitor. Therefore, LED lighting batch job can be realized. FEATURES * No transformer and high voltage electrolysis capacitor * Integrated high voltage startup power supply circuit * Adjustable output current, max 60mA * Inter-chip current deviation < ±5% * Efficiency: >90% * Power factor: >0.95 * THD<20% * Over temperature protection * Application system no EMI problems HSOP-8 ORDERING INFORMATION Ordering Number Package Packing UPSLD01G-SH2-R HSOP-8 Tape Reel UPSLD01G-SH2-R (1)Packing Type (2)Package Type (1) R: Tape Reel (2) SH2: HSOP-8 (3) G: Halogen Free and Lead Free(3)Green Package MARKING
UPSLD01 Preliminary CMOS IC UNISONIC TECHNOLOGIES CO., LTD 2 of 5 www.unisonic.com.tw Q W - R 1 2 5 - 0 3 6 . b PIN CONFIGURATION 1OUT4 2OUT3 3OUT2
8 GND
5 REXTOUT1 4
PIN DESCRIPTION PIN NO. PIN NAME DESCRIPTION
1 OUT4 current output port 4
2 OUT3 current output port 3
3 OUT2 current output port 4
4 OUT1 Power input and cons tant current output port 1
5 REXT Output current setting port
6~7 NC
8 GND GND
UPSLD01 Preliminary CMOS IC UNISONIC TECHNOLOGIES CO., LTD 3 of 5 www.unisonic.com.tw Q W - R 1 2 5 - 0 3 6 . b ABSOLUTE MAXIMUM RATING (Ambient temperature is 27°C if there is no special instruction) PARAMETER SYMBOL RATINGS UNIT ESD Voltage Withstand V ESD >2000 V Operating Temperature T OPR -20~+125 °C Storage Temperature T STG -40~+150 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ELECTRICAL CHARACTERISTICS (Ambient temperature is 27°C if there is no special instruction) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT OUT1 Input Voltage V OUT1 6.5 V Output Current I OUT 10 60 mA REXT Port Voltage V REXT V OUT1=VOUT4=10V 0.9 V OUT1/ OUT2 Port Withstand Voltage V DS_BV1 I OUT1=IOUT2=0 400 V OUT3/ OUT4 Port Withstand Voltage V DS_BV2-4 I OUT3=IOUT4=0 250 V IOUT Accuracy dI OUT I OUT=10~50mA ±5 % Over-Temperature Protection Point TSC 110 °C
UPSLD01 Preliminary CMOS IC UNISONIC TECHNOLOGIES CO., LTD 4 of 5 www.unisonic.com.tw Q W - R 1 2 5 - 0 3 6 . b FUNCTIONAL DESCRIPTION UTC UPSLD01 is constant current drive whic h integrates the functional modul e such as LED constant current control and OUT port high voltage drive. OUT1 port minimum input voltage is 6V （IOUT=20mA）and it can reach output current 10mA~60mA by external REXT resistor. Built -in LED constant current drive maintains LED current a high precision without impact of ambient temperature. The chip can achieve high efficiency and high power factor by opening four switches one by one. The chip output current is adjustable by REXT resistor I OUT=VREXT/R. Output current generated by four switches opening one by one is shown below: IOUT1=0.55V/R IOUT2=0.70V/R IOUT3=0.85V/R IOUT4=0.90V/R