A2804 UTC | Alldatasheet
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Technical content
UTC A2804 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R121-004,A 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 VO AC INPUT INV. INPUT GND NON-INV. INPUT COM. OUTPUT VS REF. VOLTAGE OUTPUT 1
UTC A2804 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R121-004,A BLOCK DIAGRAM VOLTAGE LIMIT VOLTAGE CONTROL G4G3 HALF WAVE DETECTOR MEMORY Q Q PULSE AMPLIFIER 7GND Is Vs ISYNVSYN RSYN AC INPUT LO VO PULSE GENERATOR SYNCHRONOUS STAGE S REFERENCE VOLTAGE REF. VOLTAGE OUTPUT COM OUTPUT INV. INPUT NON-INV. INPUT COMPA RATOR ABSOLUTE MAXIMUM RATINGS (Ta=25Ċ) PARAMETER SYMBOL RATINGS UNIT Supply Voltage -Vs 8.2 V Supply Current -Is 40(average) mA Synchronous Current I SYN 5.0(rms) mA Input Voltage V I IVsI V Power Dissipation P D 350 mW Junction Temperature T J 125 °$ Operating Ambient Temperature Topr -20 ~ +70 °$ Storage Temperature Ts TG -65 ~ +150 °$
ELECTRICAL CHARACTERISTICS
(Vs=8.0V, VSYN=100 ~ 115Vrms, Ta=25Ċ, f=50/60Hz, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Circuit Current -Is Pin5, R SYN=56K 2.0 2.5 mA Supply Voltage 1 -Vs1 Pin5, Is=2.5mA RSYN=56K 7.2 8.4 V Supply Voltage 2 -Vs2 Pin5, Is=20mA RSYN=56K 7.2 8.6 V Synchronous Current I SYN Pin8 0.3 mA Output Pulse Width T P Pin6, R SYN=56K 200 DŽs Output Voltage Vo Pin6, Io200mA 4.2 5.2 V
UTC A2804 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R121-004,A PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Current Io Pin6, Ro25 200 250 mA Output Offset Voltage I LO Pin6 2.0 DŽA Input Offset Voltage V IO Pin3, 4 2.0 5.0 mW Input Bias Current I I Pin3, 4 0.5 1.0 DŽA Common Mode Input Voltage Range -V ICM Pin3, 4 0 5.7 V Output Leakage Current I LC Pin2 0.2 DŽA Reference Voltage -V R Pin1,IR1DŽA 3.6 V
APPLICATIONS
ON-OFF TEMPERATURE CONTROL 4 5 Ro AC 100V/rms 50/60Hz LOAD Rsyn 56K Rs 6.8K RH: HYSTERESIS VOLTAGE SET VR NTC RH 100DŽF UTC A2804 TIME PROPORTIONAL TEMPERATURE CONTROL Ro AC 100V/rms 50/60Hz LOAD Rsyn 56K Rs 6.8K R T CT:TIMING PERIOD SET NTC100DŽF UTC A2804 VR CT+ PUT N13TL RT 39K 0.1DŽ
UTC A2804 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 4 QW-R121-004,A 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.