Order this document by UAA2016/D
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.
SEMICONDUCTOR
TECHNICAL DATA
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.
8
• 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
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
• Adjustable Hysteresis
• Low External Component Count
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
PIN CONNECTIONS
V
1
2
Sync
8
7
6
5
ref
Representative Block Diagram
V
Hys. Adj.
Sensor
CC
3
4
Output
UAA2016
Failsafe
V
Temp. Reduc.
EE
3
4
Sampling
Full Wave
Logic
6
7
Pulse
Amplifier
+
–
Sense Input
(Top View)
Output
Internal
Reference
+
+
1/2
+V
Temperature
Reduction
CC
+
Synchronization
4–Bit DAC
2
1
Hysteresis
Adjust
Supply
Voltage
ORDERING INFORMATION
Operating
11–Bit Counter
Temperature Range
Device
Package
Voltage
Reference
UAA2016D
UAA2016P
SO–8
8
5
T
A
= – 20° to +85°C
Plastic DIP
Sync
V
EE
Motorola, Inc. 1999
Rev 6
1
MOTOROLA ANALOG IC DEVICE DATA