UNISONIC TECHNOLOGIES CO., LTD 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. DIP-8 FEATURES SOP-8 *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 ■ ORDERING INFORMATION Ordering Number Lead Free A2804L-D08-T - Halogen Free A2804G-D08-T A2804G-S08-R Package Packing DIP-8 SOP-8 Tube Tape Reel MARKING DIP-8 www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd SOP-8 1 of 4 QW-R121-004.E A2804 LINEAR INTEGRATED CIRCUIT PIN CONFIGURATION BLOCK DIAGRAM Is Vs 5 VOLTAGE LIMIT VOLTAGE CONTROL COMPA RATOR + - 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 VSYN ISYN 8 RSYN SYNCHRONOUS STAGE MEMORY Q Q REFERENCE VOLTAGE PULSE GENERATOR G5 VOUT LO 6 PULSE AMPLIFIER UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 4 QW-R121-004.E A2804 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (TA=25℃, unless otherwise specified.) 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 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≤150mA MIN 4.2 IS=2.5mA, RSYN=56K IS=20mA, RSYN=56K 7.2 8 0 IR≤1μA RSYN=56K ROUT≤25 1.0 0.3 150 TYP 5.2 2.0 3.6 2.0 180 0.5 RSYN=56K 150 200 MAX UNIT 7.0 V ±5.0 mV 8.4 V 8.9 V 5.7 V V 3.0 mA mA mA ±2.0 μA ±1.0 μA ±0.2 μA 250 μs 3 of 4 QW-R121-004.E A2804 LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATIONS ON-OFF TEMPERATURE CONTROL AC 100V/rms 50/60Hz 1 NTC 8 2 100μF 7 UTC A2804 RH 3 6 4 5 Ro 56 VR RH: HYSTERESIS VOLTAGE SET Rs 6.8K 2W Rsyn 56K LOAD TIME PROPORTIONAL TEMPERATURE CONTROL 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 4 of 4 QW-R121-004.E