參數(shù)資料
型號(hào)： HAL523A
廠商： Electronic Theatre Controls, Inc.
英文描述： Hall Effect Sensor Family
中文描述： 霍爾效應(yīng)傳感器系列
文件頁(yè)數(shù)： 40/44頁(yè)
文件大小： 315K
代理商： HAL523A
HAL5xx
40
Micronas
5. Application Notes
5.1. Ambient Temperature
Due to the internal power dissipation, the temperature
on the silicon chip (junction temperature T
J
) is higher
than the temperature outside the package (ambient tem-
perature T
A
).
T
J
= T
A
+
T
At static conditions, the following equation is valid:
T = I
DD
* V
DD
* R
th
For typical values, use the typical parameters. For worst
case calculation, use the max. parameters for I
DD
and
R
th
, and the max. value for V
DD
from the application.
For all sensors, the junction temperature range T
J
is
specified. The maximum ambient temperature T
Amax
can be calculated as:
T
Amax
= T
Jmax
–
T
5.2. Extended Operating Conditions
All sensors fulfill the electrical and magnetic characteris-
tics when operated within the Recommended Operating
Conditions (see page 7).
Supply Voltage Below 3.8 V
Typically, the sensors operate with supply voltages
above 3 V, however, below 3.8 V some characteristics
may be outside the specification.
Note:
The functionality of the sensor below 3.8 V has not
been tested. For special test conditions, please contact
Micronas.
5.3. Start-up Behavior
Due to the active offset compensation, the sensors have
an initialization time (enable time t
en(O)
) after applying
the supply voltage. The parameter t
en(O)
is specified in
the Electrical Characteristics (see page 8).
During the initialization time, the output state is not de-
fined and the output can toggle. After t
en(O)
, the output
will be low if the applied magnetic field B is above B
ON
.
The output will be high if B is below B
OFF
. In case of sen-
sors with an inverted switching behavior (HAL516 ...
HAL519), the output state will be high if B > B
OFF
and low
if B < B
ON
.
For magnetic fields between B
OFF
and B
ON
, the output
state of the HAL sensor after applying V
DD
will be either
low or high. In order to achieve a well-defined output
state, the applied magnetic field must be above B
ONmax
,
respectively, below B
OFFmin
.
5.4. EMC and ESD
For applications with disturbances on the supply line or
radiated disturbances, a series resistor and a capacitor
are recommended (see figures 5
–
1). The series resistor
and the capacitor should be placed as closely as pos-
sible to the HAL sensor.
Applications with this arrangement passed the EMC
tests according to the product standards DIN 40839.
Note:
The international standard ISO 7637 is similar to
the used product standard DIN 40839.
Please contact Micronas for the detailed investigation
reports with the EMC and ESD results.
OUT
GND
3
2
1
V
DD
4.7 nF
V
EMC
V
P
R
V
220
R
L
1.2 k
20 pF
Fig. 5
–
1:
Test circuit for EMC investigations
相關(guān)PDF資料
PDF描述
HAL523E Hall Effect Sensor Family
HAL523K Hall Effect Sensor Family
HAL501 Circular Connector; No. of Contacts:128; Series:MS27497; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:24; Circular Contact Gender:Socket; Circular Shell Style:Wall Mount Receptacle RoHS Compliant: No
HAL501A JT 6C 6#22D PIN RECP
HAL501E JT 6C 6#22D SKT RECP
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