ADVANCE INFORMATION
HAL815
Step 2: Calculation of VOQ and Sensitivity
3. Specifications
3.1. Outline Dimensions
±0.1
There are two ways to calculate the values for VOQ
and Sensitivity.
sensitive area
0.4
1.5
4.06
Manual Calculation:
0.3
y
Set the system to calibration point 1 (angle 1 = −25°)
and read the register ADC-READOUT. For our exam-
ple, the result is ADC-READOUT1 = −2500.
±0.1
4.05
0.48
0.55
Next, set the system to calibration point 2 (angle 2 =
25°), and read the register ADC-READOUT again. For
our example, the result is ADC-READOUT2 = +2350.
1
2
3
0.36
13.0
min.
With these measurements and the targets VOUT1
4.5 V and VOUT2 = 0.5 V, the values for Sensitivity and
VOQ are calculated as
=
0.42
1.27 1.27
(2.54)
4.5 V − 0.5 V
−2500 − 2350
2048
5 V
Sensitivity =
= −0.3378
*
−2500 * (−0.3378) * 5 V
V
= 4.5 V −
= 2.438 V
branded side
OQ
2048
45°
0.8
Software Calibration:
SPGS0014-3-A/2E
Use the menu CALIBRATE from the PC software and
enter the values 4.5 V for VOUT1 and 0.5 V for VOUT2
Fig. 3–1:
.
Plastic Transistor Single Outline Package
(TO-92UT)
Weight approximately 0.14 g
Dimensions in mm
Set the system to calibration point 1 (angle 1 = −25°),
hit the button “Read ADC-Readout1”, set the system to
calibration point 2 (angle 2 = 25°), hit the button “Read
ADC-Readout2”, and hit the button “Calculate”. The
software will then calculate the appropriate VOQ and
Sensitivity.
Note: A mechanical tolerance of ±50 µm applies to all
dimensions where no tolerance is explicitly given.
This calculation has to be done individually for each
sensor. Now, write the calculated values with the “write
and store” command into the HAL 815 for program-
ming the sensor.
3.2. Dimensions of Sensitive Area
0.25 mm x 0.25 mm
Step 3: Locking the Sensor
3.3. Position of Sensitive Area
The last step is activating the LOCK function with the
“LOCK” command. The sensor is now locked and does
not respond to any programming or reading com-
mands.
TO-92UT
center of the package
y = 1.5 mm nominal
Warning: This register cannot be reset!
Micronas
11
MICRONAS [ MICRONAS ]
