MLX90711
Position/movement Sensing Auto-Shutoff
Features and Benefits
Safety Auto shut off based on movement or position sensing.
Low cost 鈥?minimal external components.
Very reliable patented capacitive sensor,
insensitive to erosion and dust.
On chip calibrated timer.
Pdip8 or sop8 package.
Drives different relay types, including low cost
12V relays and most custom made relays.
Auto shut off status is indicated via a led.
Several timing options available.
Applications
Irons, fryers, ...
Ordering Information
Part No.
Temperature Suffix
Package
version
Temperature Range
MLX90711
S
A
-x
0C to 105C
MLX90711
S
L
-x
0C to 105C
The customer specific version code (defining the options) is indicated with 1 character at the end of the ordering
number.
Functional Diagram
Description
The Automatic Shut-Off is a safety system which
turns off the electrical power of a load based either
on a movement detection or a position detection.
This detection will be taken into account after a well
defined time delay. A typical application is the safety
feature in irons which will switch off the heating
element when the iron is left immobile for a well
defined period, which can be dependant on the
position. The state of the Auto Shut-Off can be
indicated with an led.
90711
CA0
Sequencer
VDD1
Regulator & bias
CA1
Osc
SUM
ADC
Relay
RD
Logic
VSS
LED
LEDP
MLX902xx Name of Sensor
Rev Y.X
MLX90711 Position/movement Sensing Auto-Shutoff Page 1
22/Aug/98
Rev 1.0
Page 1
15/Sep/00