MLX90711 Datasheet, PDF (5/12 Pages) List of Unclassifed Manufacturers – Position/movement Sensing Auto-Shutoff

MLX90711
Position/movement Sensing Auto-Shutoff
Side Position Shut-Off
The design of the cavity in the pcb, on which the ball
of the sensor is moving, as well as the design of the
protective cover important aspects. When designed
properly the function of the Auto Shut-Off module
can also be defined when the module is rotated
around the axis perpendicular to the normal axis,
even when the ball tends to fall off of the pcb. In the
application of an iron this can be useful for defining
the functionality when the iron is put at his side.
Depending on the position of the sensor the voltage
at the TEST1 output will change.
The pin TEST1 is also used as digital I/O during the
asic production test.
Options
Following is a summary of the options that can be
parameter
value option
POSMOV
0
Position sensing
1
Movement sensing
PCB top view
V1—V8
Select timing options
SPH1
0
Phase 1 of startup se-
quence is 0.5 sec.
side position
rotation axis
1
Phase 1 of startup se-
quence is 3 sec.
HEATUPM
0
No heatup feature
normal rotation axis
1
Heatup feature present
SRD1 + SRD2 Select relay and led driver options
Heating Up feature
If the heating up feature is present, it inhibits the
Auto Shut-Off function for 1 minute and 30 seconds
after the start up sequence regardless of the position
or the movement of the iron. If the iron is left
immobile the asic will activate the relay output after 1
min and 30 sec added to the time TH (or TV or TD
depending on the position).
If the heating up feature not present, the Auto Shut-
Off function is available as soon as the iron is
plugged: so the relay contacts will switch off after a
time TH if it is left in the ironing position without
movement , or after time TV if it is left vertically up,
or after time TD if it is left vertically down.
Sensor test mode
To measure the performance of the sensor in the
module, a sensor test mode is implemented. This
test mode is activated via the test pin TEST1, which
is normally left open. When connecting the pin
TEST1 to an external 12V supply (with respect to the
asic ground VSS) via a resistor of 220 Kohm the test
mode is activated and the output of the on chip
integrator is now available at the pin TEST1.
changed with the metal mask:
Pinout
Standard package is 8-pin dual inline package or 8-
pin sop package.
DIP8 SOP8 Name Type Description
1
2
CA1 Output Sensor output CA1
2
3
VSS Supply Ground
3
4
SUM Input Sensor input
4
5
TEST1 Output Test output
5
6
VDD1 Supply Power supply
6
7
LEDP Output Led driver
7
8
RD Output Relay driver
8
1
CA0 Output Sensor output CA0
MLLXX990027x1x1NaPmoesitoifonS/emnosovrement Sensing Auto-ShutofRf ePvaYg.Xe 5
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