UTC-IC A2804_05

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
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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
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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
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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
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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
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