UTC A2804 Zero voltage switch Datasheet

UTC 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.
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
UTC
REF. VOLTAGE
OUTPUT
1
8
AC INPUT
COM. OUTPUT
2
7
GND
INV. INPUT
3
6
VO
NON-INV. INPUT
4
5
VS
UNISONIC TECHNOLOGIES CO., LTD.
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QW-R121-004,A
UTC A2804
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
Is
Vs
5
VOLTAGE
LIMIT
VOLTAGE
CONTROL
COMPA
RATOR
4
+
-
3
G1
NON-INV.
INPUT
INV.
INPUT
7
GND
G2
2
COM
OUTPUT
1
REF.
VOLTAGE
OUTPUT
HALF WAVE
DETECTOR
G3
G4
S
AC
INPUT
VSYN
ISYN
8
RSYN
MEMORY
SYNCHRONOUS
STAGE
Q
Q
REFERENCE
VOLTAGE
PULSE
GENERATOR
G5
LO
VO
6
PULSE AMPLIFIER
ABSOLUTE MAXIMUM RATINGS (Ta=25℃)
PARAMETER
SYMBOL
RATINGS
UNIT
-Vs
-Is
ISYN
VI
PD
TJ
Topr
TsTG
8.2
40(average)
5.0(rms)
≤ IVsI
V
mA
mA
V
mW
°C
°C
°C
Supply Voltage
Supply Current
Synchronous Current
Input Voltage
Power Dissipation
Junction Temperature
Operating Ambient Temperature
Storage Temperature
350
125
-20 ~ +70
-65 ~ +150
ELECTRICAL CHARACTERISTICS
(Vs=8.0V, VSYN=100 ~ 115Vrms, Ta=25℃, f=50/60Hz, unless otherwise specified)
PARAMETER
Circuit Current
Supply Voltage 1
Supply Voltage 2
Synchronous Current
Output Pulse Width
Output Voltage
UTC
SYMBOL
-Is
-Vs1
-Vs2
ISYN
TP
Vo
TEST CONDITIONS
Pin5, RSYN=56K
Pin5, Is=2.5mA
RSYN=56K
Pin5, Is=20mA
RSYN=56K
Pin8
Pin6, RSYN=56K
Pin6, Io≤200mA
MIN
TYP
MAX
UNIT
2.0
2.5
mA
7.2
8.4
V
7.2
8.6
0.3
4.2
V
mA
μs
200
5.2
V
UNISONIC TECHNOLOGIES CO., LTD.
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QW-R121-004,A
UTC A2804
LINEAR INTEGRATED CIRCUIT
PARAMETER
SYMBOL
Output Current
Output Offset Voltage
Input Offset Voltage
Input Bias Current
Common Mode Input Voltage Range
Output Leakage Current
Reference Voltage
TEST CONDITIONS
Io
ILO
Pin6, Ro≤25
VIO
II
-VICM
ILC
-VR
Pin3, 4
Pin3, 4
Pin3, 4
Pin2
Pin1,IR≤1μA
MIN
TYP
200
250
Pin6
2.0
0.5
0
MAX
UNIT
2.0
mA
μA
5.0
1.0
5.7
0.2
3.6
mW
μA
V
μA
V
APPLICATIONS
ON-OFF TEMPERATURE CONTROL
AC
100V/rms
50/60Hz
1
8
2
7
NTC
100μF
Ro
56
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
8
1
+
NTC
100μF
2
7
UTC A2804
+
20
3
6
4
5
0.1μ
CT
VR
LOAD
PUT
N13TL
Ro
56
RT CT:TIMING PERIOD SET
Rs
6.8K
2W
UTC
Rsyn
56K
UNISONIC TECHNOLOGIES CO., LTD.
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QW-R121-004,A
UTC A2804
LINEAR INTEGRATED CIRCUIT
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.
UTC
UNISONIC TECHNOLOGIES CO., LTD.
4
QW-R121-004,A
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