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UAA2016 Datasheet PDF : 12 Pages
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UAA2016
Zero Voltage Switch
Power Controller
The UAA2016 is designed to drive triacs with the Zero Voltage
technique which allows RFI−free power regulation of resistive loads.
Operating directly on the AC power line, its main application is the
precision regulation of electrical heating systems such as panel heaters
or irons.
A built−in digital sawtooth waveform permits proportional
temperature regulation action over a ±1°C band around the set point.
For energy savings there is a programmable temperature reduction
function, and for security a sensor failsafe inhibits output pulses when
the sensor connection is broken. Preset temperature (i.e. defrost)
application is also possible. In applications where high hysteresis is
needed, its value can be adjusted up to 5°C around the set point. All
these features are implemented with a very low external component
count.
Features
• Zero Voltage Switch for Triacs, up to 2.0 kW (MAC212A8)
• Direct AC Line Operation
• Proportional Regulation of Temperature over a 1°C Band
• Programmable Temperature Reduction
• Preset Temperature (i.e. Defrost)
• Sensor Failsafe
• Adjustable Hysteresis
• Low External Component Count
• Pb−Free Packages are Available
3
Sense Input
4
Temperature
Reduction
2
Hysteresis
Adjust
1
Voltage
Reference
Failsafe
+
−
++
1/2
+
Sampling
Full Wave
Logic
UAA2016
Pulse
Amplifier
Internal
Reference
6
Output
7
+VCC
4−Bit DAC
Synchronization
11−Bit Counter
(Sawtooth
Generator)
Supply
Voltage
8
5
Sync
VEE
Figure 1. Representative Block Diagram
http://onsemi.com
ZERO VOLTAGE SWITCH
POWER CONTROLLER
MARKING
DIAGRAMS
8
1
PDIP−8
P SUFFIX
CASE 626
UAA2016P
AWL
YYWWG
8
1
SOIC−8
D SUFFIX
CASE 751
8
2016x
ALYW
G
1
x
= A or D
A
= Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
G, G = Pb−Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
Vref 1
Hys. Adj. 2
Sensor 3
Temp. Reduc. 4
8 Sync
7 VCC
6 Output
5 VEE
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
© Semiconductor Components Industries, LLC, 2006
1
January, 2006 − Rev. 9
Publication Order Number:
UAA2016/D
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