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A2804 PDF Datasheet - Unisonic Technologies

Part Number A2804
Description ZERO VOLTAGE SWITCH
Manufacturers Unisonic Technologies 
Logo Unisonic Technologies Logo 
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A2804 datasheet, circuit
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.
SOP -8
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
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
DIP-8
SOP-8
SOP-8
DIP-8
*Pb-free plating product number: A2804L
Packing
Tube
Tape Reel
Tube
A2804L-D08-T
(1)Packing Type
(2)Package Type
(3)Lead Plating
(1) T: Tube, R: Tape Reel
(2) D08: DIP-8, S08: SOP-8
(3) L: Lead Free Plating, Blank: Pb/Sn
www.DataSheet4U.com
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co., Ltd
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A2804 pdf, schematic
A2804
PIN CONFIGURATION
REF. VOLTAGE
OUTPUT
1
COM. OUTPUT 2
INV. INPUT 3
NON-INV. INPUT 4
LINEAR INTEGRATED CIRCUIT
8 AC INPUT
7 GND
6 VOUT
5 VS
www.DataSheet4U.com
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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A2804 equivalent
A2804
TYPICAL APPLICATIONS
ON-OFF TEMPERATURE CONTROL
100 F
NTC
RH
VR
RH: HYSTERESIS VOLTAGE SET
LINEAR INTEGRATED CIRCUIT
18
27
UTC A2804
36
45
Ro
56
AC
100V/rms
50/60Hz
Rs
6.8K
2W
Rsyn
56K
TIME PROPORTIONAL TEMPERATURE CONTROL
+
100 F
PUT
N13TL
RT
+ CT
20
39K
NTC
1
2
3
0.1
4
VR
UTC A2804
8
7
6
5
Ro
56
AC
100V/rms
50/60Hz
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
www.DataSohteheetr4Up.acroammeters) 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
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