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PDF HAL810 Data sheet ( Hoja de datos )
| Número de pieza | HAL810 | |
| Descripción | Programmable Linear Hall-Effect Sensor | |
| Fabricantes | Micronas | |
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Hardware
Documentation
Data Sheet
HAL® 810
Programmable Linear
Hall-Effect Sensor
Edition Feb. 6, 2009
DSH000034_003EN
1 page  
DATA SHEET
HAL 810
1.3. Marking Code
The HAL810 has a marking on the package surface
(branded side). This marking includes the name of the
sensor and the temperature range.
Type
HAL 810
Temperature Range
AK
810A
810K
1.4. Operating Junction Temperature Range (TJ)
The Hall sensors from Micronas are specified to the
chip temperature (junction temperature TJ).
A:TJ = −40 °C to +170 °C
K:TJ = −40 °C to +140 °C
The relationship between ambient temperature (TA)
and junction temperature is explained in Section 4.5.
on page 24.
1.5. Hall Sensor Package Codes
HALXXXPA-T
Temperature Range: A or K
Package: UT for TO92UT-1/-2
Type: 810
Example: HAL810UT-K
→ Type:
810
→ Package:
TO92UT
→ Temperature Range: TJ = −40 °C to +140 °C
Hall sensors are available in a wide variety of packag-
ing versions and quantities. For more detailed informa-
tion, please refer to the brochure: “Hall Sensors:
Ordering Codes, Packaging, Handling”.
1.6. Solderability and Welding
Soldering
During soldering, reflow processing and manual
reworking, a component body temperature of 260 °C
should not be exceeded.
Welding
Device terminals should be compatible with laser and
resistance welding. Please note that the success of
the welding process is subject to different welding
parameters which will vary according to the welding
technique used. A very close control of the welding
parameters is absolutely necessary in order to reach
satisfying results. Micronas, therefore, does not give
any implied or express warranty as to the ability to
weld the component.
1.7. Pin Connections and Short Descriptions
Pin Pin Name Type Short Description
No.
1 VDD
IN Supply Voltage and
Programming Pin
2 GND
Ground
3 OUT
OUT Push-Pull Output
1 VDD
OUT
3
2 GND
Fig. 1–1: Pin configuration
Micronas
Feb. 6, 2009; DSH000034_003EN
5
5 Page 
DATA SHEET
HAL 810
Step 2: Calculation of DCOQ and DCSensitivity
The calibration points 1 and 2 can be set inside the
specified range. The corresponding values for DC1
and DC2 result from the application requirements.
Min-Duty ≤ DC1,2 ≤ Max-Duty
For highest accuracy of the sensor, calibration points
near the minimum and maximum input signal are rec-
ommended. The difference of the duty cycle between
calibration point 1 and calibration point 2 should be
more than 70%.
Set the system to calibration point 1 and read the reg-
ister ADC-READOUT. The result is ADC-Readout1.
Now, set the system to calibration point 2, read the
register ADC-READOUT, and get ADC-Readout2.
With these readouts and the nominal duty cycles DC1
and DC2, for the calibration points 1 and 2, respec-
tively, the values for DCSensitivity and DCOQ are cal-
culated as follows:
DC2 − DC1
2048
DCSensitivity = ADC-Readout2 − ADC-Readout1 * 100%
ADC-Readout1 * DCSensitivity * 100%
DCOQ = DC1 −
2048
This calculation has to be done individually for each
sensor.
Next, write and store the calculated values for DCSen-
sitivity and DCOQ into the IC for adjusting the sensor.
The sensor is now calibrated for the customer applica-
tion. However, the programming can be changed
again and again if necessary.
Step 3: Locking the Sensor
The last step is activating the lock function with the
“LOCK” command. Please note that the LOCK function
becomes effective after power-down and power-up of
the Hall IC. The sensor is now locked and does not
respond to any programming or reading commands.
Warning: This register cannot be reset!
2.4. Calibration of the Angle Sensor
The following description explains the calibration pro-
cedure using an angle sensor as an example. The
required output characteristic is shown in Fig. 2–7.
– the angle range is from −25° to 25°
– temperature coefficient of the magnet: −500 ppm/K
%
100
Output
Duty
Cycle 80
Max-Duty = 95%
Calibration Point 1
60
40
20
Min-Duty = 5%
Calibration Point 2
0
–30 –20 –10 0 10 20 30 °
Angle
Fig. 2–7: Example for output characteristics
Micronas
Feb. 6, 2009; DSH000034_003EN
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet HAL810.PDF ] | |
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