UNISONIC TECHNOLOGIES CO., LTD UPSL103 Preliminary LINEAR INTEGRATED CIRCUIT HIGH POWER FACTOR & ACCURACY CONSTANT CURRENT LED DRIVER DESCRIPTION The UTC UPSL103 is a highly-integrated, low startup current, average current mode, one cycle control PFC and fixed switching frequency PWM controller. These functions enable the LED driver to easily meet the accuracy average LED current and high power factor requirements. The UTC UPSL103 also features a 45kHz fixed frequency oscillator, an internal 200mV precision reference, and a PWM comparator with latching logic. The accurate output LED current is achieved by an averaging current feedback loop and the LED current dimming can be easily controlled via the DIM pin. The UTC UPSL103 also has multiple features to protect the controller from fault conditions, including Under Voltage Lockout (UVLO), Over Current Protection (OCP) and Over Voltage Protection (OVP). Additionally, to ensure the system reliability, the UTC UPSL103 is built with the thermal protection function. The UTC UPSL103 improves the performance and reduces the cost of the LED driver. FEATURES * High power factor by one cycle control * Accuracy and programmable constant current * Low BOM cost * Dimmable LED current by DIM * Average current / fixed frequency control * Gate output voltage clamp * LED Open Protection * LED Short Protection * Over Current Protection * Built-in thermal protection ORDERING INFORMATION Ordering Number UPSL103G-AG6-R www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd Package SOT-26 Packing Tape Reel 1 of 5 QW-R125-035.a UPSL103 Preliminary LINEAR INTEGRATED CIRCUIT MARKING 6 5 4 L103G 1 2 3 PIN CONFIGURATION PIN DESCRIPTION PIN NO. 1 2 3 4 5 6 PIN NAME VCC GND OUT DIM COMP CS DESCRIPTION Power supply pin of the chip. Ground pin of the chip. Gate driver for external MOSFET switch Dimming control pin by input a DC voltage PWM loop compensation node Current sense pin, Connect to sense the MOSFET current UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 5 QW-R125-035.a UPSL103 Preliminary LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM VCC 15V LDO UVLO VREF 8V 28V COMP OVP OTP 0.8V OCP R CS Control R PWM DRV OUT S OSC CS Q R1 EA GND 0.2V 3V DIM 0.3V DIM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 5 QW-R125-035.a UPSL103 Preliminary LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Supply Voltage VCC 30 V DIM, COMP, CS -0.3~7 V OUT 15 V Power Dissipation (at Ambient Temperature =85°C) PD 250 mW ESD Voltage Protection, Human Body Model 2 KV ESD Voltage Protection, Machine Model 200 V Junction Temperature TJ 150 °C Operating Ambient Temperature TOPR -20~85 °C Storage Temperature TSTG -65~150 °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 (VCC=15.0V & TA=+25°C, unless otherwise specified.) PARAMETER Startup Current Operating Current Operating Current UVLO(off) UVLO(on) OVP Level on VCC Pin OVP De-Bounce Time Feedback Reference Voltage Tran-Conductance Output Sink Current Output Source Current Input Over Voltage Protection Open Loop Voltage, CS Pin Open Leading-Edge Blanking Time Delay to Output Switching Frequency Maximum Duty Frequency Jitter Range Temp. Stability Voltage Stability Rising Time Falling Time VGATE-Clamp Saturation Threshold Voltage Linear Dimming Range LED Current off Threshold Voltage Current Source OTP Trip Point OTP Release Point OTP Threshold Level OTP De-Bounce Time SYMBOL TEST CONDITIONS IST VCC=UVLO on - 1V with 1nF load on OUT pin, ICC VCOMP=2.5V with 1nF load on OUT pin, IQC Protection Tripped (OCP, OVP, SCP, OTP) VMIN VST VOVP VFB 7 14 26.5 0.196 ISINK ISOURCE VOCP VCS TLEB TDelay FOSC DMAX 0.7 42 90 TYP 4 MAX 15 UNIT μA 2 3 mA 1.2 1.5 mA 8 15 28 40 0.200 120 12 12 0.80 5 410 100 45 9 16 29.5 V V V μs V μS μA μA V V nS nS KHz % % % % nS nS V V V V μA °C °C °C μS 0.204 0.9 220 48 +/-4 TR TF VClamp -40°C~ 125°C VCC=11V ~ 25V Load Capacitance=1000pF Load Capacitance=1000pF VCC=25V 160 80 13.5 3.0 0.3 270 TSD TST △T UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 300 150 130 20 80 6 1 320 160 15 3.0 0.5 330 4 of 5 QW-R125-035.a UPSL103 Preliminary LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 5 QW-R125-035.a