UTC A2804 LINEAR INTEGRATED CIRCUIT ZERO VOLTAGE SWITCH DESCRIPTION The UTC A2804 is a TRIAC controller providing a complete solution for temperature controlled electric panel heaters, cookers, film processing baths etc. Switching occurs at the zero voltage point in order to minimize radio frequency interference. The device is suitable for mains-on-line operation and requires minimal components. FEATURES *Easy operation either through the AC line or a DC supply. *Supply voltage control. *Very few external components. *Symmetrical burst control-No DC current components in the load circuit *Negative output current pulse up to 250mA-short circuit protection. *Reference voltage output DIP-8 *Pb-free plating product number: A2804L PIN CONFIGURATION UTC REF. VOLTAGE OUTPUT 1 8 AC INPUT COM. OUTPUT 2 7 GND INV. INPUT 3 6 VO NON-INV. INPUT 4 5 VS UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R121-004,A UTC A2804 LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM Is Vs 5 VOLTAGE LIMIT VOLTAGE CONTROL COMPA RATOR 4 + - 3 G1 NON-INV. INPUT INV. INPUT 7 GND G2 2 COM OUTPUT 1 REF. VOLTAGE OUTPUT HALF WAVE DETECTOR G3 G4 S AC INPUT VSYN ISYN 8 RSYN MEMORY SYNCHRONOUS STAGE Q Q REFERENCE VOLTAGE PULSE GENERATOR G5 LO VO 6 PULSE AMPLIFIER ABSOLUTE MAXIMUM RATINGS (Ta=25℃) PARAMETER SYMBOL RATINGS UNIT -Vs -Is ISYN VI PD TJ Topr TsTG 8.2 40(average) 5.0(rms) ≤ IVsI V mA mA V mW °C °C °C Supply Voltage Supply Current Synchronous Current Input Voltage Power Dissipation Junction Temperature Operating Ambient Temperature Storage Temperature 350 125 -20 ~ +70 -65 ~ +150 ELECTRICAL CHARACTERISTICS (Vs=8.0V, VSYN=100 ~ 115Vrms, Ta=25℃, f=50/60Hz, unless otherwise specified) PARAMETER Circuit Current Supply Voltage 1 Supply Voltage 2 Synchronous Current Output Pulse Width Output Voltage UTC SYMBOL -Is -Vs1 -Vs2 ISYN TP Vo TEST CONDITIONS Pin5, RSYN=56K Pin5, Is=2.5mA RSYN=56K Pin5, Is=20mA RSYN=56K Pin8 Pin6, RSYN=56K Pin6, Io≤200mA MIN TYP MAX UNIT 2.0 2.5 mA 7.2 8.4 V 7.2 8.6 0.3 4.2 V mA μs 200 5.2 V UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R121-004,A UTC A2804 LINEAR INTEGRATED CIRCUIT PARAMETER SYMBOL Output Current Output Offset Voltage Input Offset Voltage Input Bias Current Common Mode Input Voltage Range Output Leakage Current Reference Voltage TEST CONDITIONS Io ILO Pin6, Ro≤25 VIO II -VICM ILC -VR Pin3, 4 Pin3, 4 Pin3, 4 Pin2 Pin1,IR≤1μA MIN TYP 200 250 Pin6 2.0 0.5 0 MAX UNIT 2.0 mA μA 5.0 1.0 5.7 0.2 3.6 mW μA V μA V APPLICATIONS ON-OFF TEMPERATURE CONTROL AC 100V/rms 50/60Hz 1 8 2 7 NTC 100μF Ro 56 UTC A2804 3 6 4 5 LOAD RH VR RH: HYSTERESIS VOLTAGE SET Rsyn 56K Rs 6.8K 2W TIME PROPORTIONAL TEMPERATURE CONTROL RT AC 100V/rms 50/60Hz 39K 8 1 + NTC 100μF 2 7 UTC A2804 + 20 3 6 4 5 0.1μ CT VR LOAD PUT N13TL Ro 56 RT CT:TIMING PERIOD SET Rs 6.8K 2W UTC Rsyn 56K UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R121-004,A UTC A2804 LINEAR INTEGRATED 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. UTC UNISONIC TECHNOLOGIES CO., LTD. 4 QW-R121-004,A