UNISONIC TECHNOLOGIES CO., LTD A2804 LINEAR INTEGRATED CIRCUIT ZERO VOLTAGE SWITCH DESCRIPTION SOP-8 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 ORDERING INFORMATION Ordering Number Normal Lead Free Plating A2804-D08-T A2804L-D08-T A2804-S08-R A2804L-S08-R A2804-S08-T A2804L-S08-T Package Packing DIP-8 SOP-8 SOP-8 Tube Tape Reel Tube A2804L-D08-T (1)Packing Type (2)Package Type (3)Lead Plating www.unisonic.com.tw Copyright © 2005 Unisonic Technologies Co., Ltd (1) T: Tube, R: Tape Reel (2) D08: DIP-8, S08: SOP-8 (3) L: Lead Free Plating, Blank: Pb/Sn 1 of 5 QW-R121-004,B A2804 LINEAR INTEGRATED CIRCUIT PIN CONFIGURATION REF. VOLTAGE OUTPUT 1 8 AC INPUT COM. OUTPUT 2 7 GND INV. INPUT 3 6 VOUT NON-INV. INPUT 4 5 VS UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 5 QW-R121-004,B A2804 LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM Is Vs 5 VOLTAGE LIMIT VOLTAGE CONTROL COMP A RA TOR + - G1 GND 4 3 NON-INV. INPUT INV. INPUT 7 G2 2 COM OUTPUT 1 REF. VOLTAGE OUTPUT HALF WAVE DETECTOR G3 G4 S AC INPUT V SYN ISYN 8 R SYN SYNCHRONOUS STAGE MEMORY Q Q REFERENCE VOLTAGE PULSE GENERATOR G5 V OUT LO 6 PULSE AMPLIFIER UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 5 QW-R121-004,B A2804 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (Ta=25℃) PARAMETER SYMBOL RATINGS UNIT Supply Voltage -Vs 8.2 V Input Voltage VIN ≤ IVsI V Supply Current -Is 40(average) mA Synchronous Current ISYN 5.0(rms) mA Power Dissipation PD 350 mW Junction Temperature TJ 125 °C Operating Ambient Temperature TOPR -20 ~ +70 °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 (Vs=8.0V, VSYN=100 ~ 115Vrms, Ta=25℃, f=50/60Hz) PARAMETER Output Voltage Input Offset Voltage Supply Voltage 1 Supply Voltage 2 Common Mode Input Voltage Range Reference Voltage Circuit Current Synchronous Current Output Current Output Leakage Current Input Bias Current Output Leakage Current Output Pulse Width SYMBOL VOUT VI(OFF) -Vs1 -Vs2 -VI(CM) -VR -Is ISYN IOUT ILO II(BIAS) ILC TPULSE PIN NO. 6 3, 4 5 5 3, 4 1 5 8 6 6 3, 4 2 6 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw TEST CONDITIONS IOUT≤200mA MIN 4.2 Is=2.5mA, RSYN=56K Is=20mA, RSYN=56K 7.2 7.2 0 IR≤1µA RSYN=56K ROUT≤25 TYP 5.2 2.0 3.6 2.0 0.3 200 250 0.5 RSYN=56K 200 MAX UNIT V 5.0 mV 8.4 V 8.6 V 5.7 V V 2.5 mA mA mA 2.0 µA 1.0 µA 0.2 µA µs 4 of 5 QW-R121-004,B A2804 LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATIONS ON-OFF TEMPERATURE CONTROL AC 100V/rms 50/60Hz 1 NTC 8 2 Ro 56 7 100μF 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 1 NTC 100μF 2 7 UTC A2804 PUT N13TL + 6 4 5 0.1μ CT 20 3 Ro 56 VR LOAD + 8 RT CT:TIMING PERIOD SET Rs 6.8K 2W Rsyn 56K 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-R121-004,B