A2804 [UTC]
ZERO VOLTAGE SWITCH; 零电压开关
| 型号： | A2804 |
| 厂家： | 
Unisonic Technologies |
| 描述： | ZERO VOLTAGE SWITCH |
| 文件： | 总4页 (文件大小：40K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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.
DIP-8
*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
*Pb-free plating product number: A2804L
PIN CONFIGURATION
REF. VOLTAGE
OUTPUT
AC INPUT
GND
1
8
7
6
5
2
3
4
COM. OUTPUT
INV. INPUT
VO
VS
NON-INV. INPUT
UTC UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R121-004,A
UTC A2804
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
NON-INV.
INPUT
INV.
4
Is
+
VOLTAGE
CONTROL
VOLTAGE
LIMIT
COMPA
RATOR
5
7
Vs
-
3
G1
INPUT
GND
COM
OUTPUT
G2
2
HALF WAVE
DETECTOR
G3
G4
S
VSYN
RSYN
ISYN
MEMORY
AC
INPUT
SYNCHRONOUS
STAGE
8
Q
Q
REF.
VOLTAGE
OUTPUT
REFERENCE
VOLTAGE
1
PULSE
GENERATOR
G5
LO
6
VO
PULSE AMPLIFIER
ABSOLUTE MAXIMUM RATINGS (Ta=25℃)
PARAMETER
SYMBOL
RATINGS
UNIT
V
Supply Voltage
-Vs
8.2
Supply Current
-Is
40(average)
5.0(rms)
≤ IVsI
mA
mA
V
Synchronous Current
Input Voltage
ISYN
VI
Power Dissipation
PD
350
125
mW
°C
°C
Junction Temperature
Operating Ambient Temperature
Storage Temperature
TJ
Topr
TsTG
-20 ~ +70
-65 ~ +150
°C
ELECTRICAL CHARACTERISTICS
(Vs=8.0V, VSYN=100 ~ 115Vrms, Ta=25℃, f=50/60Hz, unless otherwise specified)
PARAMETER
Circuit Current
SYMBOL
-Is
TEST CONDITIONS
Pin5, RSYN=56K
Pin5, Is=2.5mA
RSYN=56K
MIN
7.2
TYP
2.0
MAX
2.5
UNIT
mA
Supply Voltage 1
-Vs1
-Vs2
8.4
8.6
V
V
Supply Voltage 2
Pin5, Is=20mA
RSYN=56K
7.2
0.3
Synchronous Current
Output Pulse Width
Output Voltage
ISYN
TP
Pin8
mA
μs
Pin6, RSYN=56K
Pin6, Io≤200mA
200
5.2
Vo
4.2
V
UTC UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R121-004,A
UTC A2804
LINEAR INTEGRATED CIRCUIT
PARAMETER
Output Current
SYMBOL
TEST CONDITIONS
Pin6, Ro≤25
MIN
200
TYP
250
MAX
UNIT
Io
ILO
mA
μA
Pin6
2.0
5.0
1.0
5.7
0.2
Output Offset Voltage
Input Offset Voltage
Pin3, 4
2.0
0.5
mW
μA
VIO
II
Input Bias Current
Pin3, 4
Common Mode Input Voltage Range
Output Leakage Current
Reference Voltage
-VICM
ILC
Pin3, 4
0
V
μA
Pin2
Pin1,IR≤1μA
-VR
3.6
V
APPLICATIONS
ON-OFF TEMPERATURE CONTROL
AC
100V/rms
50/60Hz
1
2
3
4
8
7
6
NTC
Ro
56
100μF
UTC A2804
RH
5
VR
RH: HYSTERESIS VOLTAGE SET
Rsyn
56K
Rs
6.8K
2W
TIME PROPORTIONAL TEMPERATURE CONTROL
AC
100V/rms
50/60Hz
RT
39K
1
2
3
4
8
7
6
+
Ro
56
NTC
100μF
UTC A2804
+
0.1μ
CT
PUT
N13TL
5
20
VR
RT CT:TIMING PERIOD SET
Rs
6.8K
2W
Rsyn
56K
UTC UNISONIC TECHNOLOGIES CO., LTD.
3
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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