|
Hall-Effect Vane Sensor BBHME2000
(replaces 2AV31E-J)
DOWNLOAD
PRINTABLE PDF HERE
INTRODUCTION
The Automotive Shaft Position Monitoring BBHME2000 is
designed to work in the conditions of automobile environment. The
device is produced in compliance with the international standard and
features: modern design, accurateness, endurance, narrow temperature
drifting, smooth and clean output curve as well as non instantaneous
dithering.
It is applicable to engines with electronic ejection. The main
applications are in automobile industry, i.e. as a breakerless
trigger in electronic systems, in control engineering, especially in
those areas where switches/ sensors must operate maintenance-free
under harsh environmental conditions, e.g. rpm sensors, limit
switches, position sensors, speed measurements, shaft encoders,
scanning of coding disks etc.
The BBHME2000 is replacement of the similar product 2AV31E-J.
They are compatible in electrical and mechanical properties but with
different circuitry principle.
FEATURES
-
Contactless
switch/sensor with open collector output (40mA)
-
Static
switching/sensing
-
High
switching/sensing frequency
-
Hermetically
sealed with plastic
-
Unaffected
by dirt, light and vibration
-
Large
temperature and voltage ranges
-
Integrated
protection of overvoltage etc.
The Hall Effect vane sensor BBHME2000 is a non-contact
sensor/switch, which consists of a monolithic integrated Hall Effect
circuit and a special magnetic circuit hermetically sealed in a
plastic package. The sensor is actuated by a soft-iron vane passing
through the air gap between magnet and Hall sensor.
MEASURING PRINCIPLE
The Hall Effect vane sensor consist of a Hall IC and a permanent
magnet (SmCo, NdFeB disc or block), which are hermetically sealed in
plastic (see the following figures). The sensor is actuated by a
soft iron vane that passes through the air gap between the magnet
and Hall IC. The open collector output is conductive (low) when the
vane is outside the air gap (see Fig. a)), and blocks (high) when
the vane moves into the air gap (see Fig. b)). The output remains
high as long as the vane positions in the air gap. This is the so
called static function. The output signal shape is in this case
independent on the operating frequency.
Overvoltage is integrated in the circuit in order to protect against
most of the voltage peaks occurring in automotive and industrial
applications. The output stage has a Schmitt trigger characteristic.
Most of electronic circuits can be driven directly thanks to the
open collector output current of maximum 40mA.
MECHANICAL CHARACTERISTICS
The Hall Effect vane sensor is hermetically sealed in a special
plastic package, so that it can also be used under harsh
environmental conditions. The package is waterproof, resistant to
vibration, gasoline, oil and salt. Two tubular rivets are
incorporated in the package to mount the sensor on the carrier plate.
The sensor has three leads for power supply, output and ground.
ABSOLUTE MAXIMUM RATINGS
|
Supply Voltage |
30V
|
|
Reverse Battery Voltage |
- 40V
|
|
Output OFF Voltage |
40V
|
|
Reverse Output Voltage |
- 0.5V
|
|
Output Current (at TA=25°C)
|
40mA for 5 minutes
max |
|
Operating Temperature Range |
- 40°C~ +150°C
|
ELECTRICAL
CHARACTERISTICS at Vcc＝12V
|
Supply Voltage |
4.5V~24V
|
|
Supply Current |
≤9mA
|
|
Output Saturation Voltage(Sinking 20mA) |
≤0.4V
|
|
Output Leakage Current |
≤10uA
|
|
Output Rise Time |
≤2uS
|
|
Output Fall Time |
≤2uS
|
|
Output type |
NPN (OC)
|
MECHANICAL
PARAMETERS
|
Part number |
De(mm) operation
distance |
Da(mm) release
distance |
|
Min
|
Typ
|
Max
|
Min
|
Typ
|
Max
|
|
BBHME2000 |
0.85
|
1.45
|
2.05
|
1.54
|
2.29
|
3.04
|
CROSS REFERENCE
Have a question? Click Here
for assistence |
