
MICROPAC INDUSTRIES, INC. OPTOELECTRONIC PRODUCTS DIVISION
725 E.Walnut St., Garland, TX 75040 (972)272-3571 Fax (972)487-6918
www.micropac.com
E-MAIL: OPTOSALES @ MICROPAC.COM
65028
HIGH RELIABILITY HALL EFFECT SENSOR
NON-LATCHING OUTPUT
OPTOELECTRONIC PRODUCTS
DIVISION
07/22/2009
Features:
Wide operating temperature range -55 C to +200C
High magnetic sensitivity
Low current CMOS Technology
Wide operating voltage range 3.5 to 24 V
Chopper stabilized amplifier minimizes amplifier
offset resulting in improved temperature stability
Applications:
Solid state switch
Motor controls
Speed sensing
Angular Position sensing
Linear Position Sensing
Current Sensing
DESCRIPTION
The 65028 Hall effect sensor detects the presence of a magnetic field and provides a switch output.
It is
packaged in a hermetically sealed three pin ceramic package and can be used in many harsh environments. An
internal chopper stabilized amplifier eliminates input offset voltages normally associated with bipolar devices
resulting in improved operating point stability. The output transistor will be “Switched ON” in the presence of a
sufficiently strong South pole magnetic field facing the marked side of the package that meets or exceeds the
operate point (BOP) of the sensor. The output will be “Switched OFF” as the South Pole magnetic field is
decreased below the release point (BRP) of the sensor.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage Range ............................................................................................................................................ 3.5 V to 24.0 V
Supply Current (Fault)...........................................................................................................................................................50 mA
Power Dissipation, @ TA = 25°C (PD) ............................................................................................................................... 100 mW
Output Current (Fault) ...........................................................................................................................................................50 mA
Storage Temperature.......................................................................................................................................... .-65°C to +200°C
Operating Free-Air Temperature Range ............................................................................................................. -55°C to +200°C
Lead temperature (10 seconds, 1/16” from case)..............................................................................................................+260°C
Package Dimensions
Schematic Diagram
2
3
VOLTAGE
REGULATOR
1
0.230
[5.84]
0.050±0.005
[1.27±0.13]
0.400 [10.16]
MIN.
0.160
[4.06]
0.015±0.005
[0.38±0.13]
0.100 [2.54]
TOLERANCE: ±0.010 UNLESS OTHERWISE SPECIFIED.
CENTER OF
SENSING AREA
2
1
3
0.100 [2.54]
0.080 [2.03]
0.020 [0.51]
0.060 [1.52]
GND
VOUT
VCC
CHOPPER
ALL DIMENSIONS ARE IN INCHES [MILLIMETERS].
HALL CELL