HAL11x
Hall Effect Sensor Family
in CMOS technology
Release Notes: Revision bars indicate significant
changes to the previous edition.
1. Introduction
The HAL 11x family consists of different Hall switches
produced in CMOS technology.
All sensors include a temperature-compensated Hall
plate, a comparator, and an open-drain output transistor.
The comparator compares the actual magnetic flux
through the Hall plate (Hall voltage) with the fixed refer-
ence values (switching points). Accordingly, the output
transistor is switched on or off. The sensors of this family
differ in the switching behavior.
The sensors are designed for industrial and automotive
applications and operate with supply voltages from
4.5 V to 24 V in the ambient temperature range from
–40
°C
up to 125
°C.
All sensors are available in an SMD-package (SOT-89B)
and in a leaded version (TO-92UA).
1.1. Features
1.3. Marking Code
– operates from 4.5 V to 24 V supply voltage
– overvoltage protection
– reverse-voltage protection at V
DD
-pin
– short-circuit protected open-drain output by thermal
shut down
– operates with static magnetic fields and dynamic mag-
netic fields up to 20 kHz
– stable switching points over a wide supply voltage
range
– the decrease of magnetic flux density caused by rising
temperature in the sensor system is compensated by
a built-in negative temperature coefficient of the mag-
netic characteristics
HAL114
HAL115
All Hall sensors have a marking on the package surface
(branded side). This marking includes the name of the
sensor and the temperature range.
Type
K
114K
115K
Temperature Range
E
114E
115E
C
114C
115C
1.2. Family Overview
The types differ according to the mode of switching.
Type
HAL114
HAL115
Switching Behavior
unipolar
bipolar
see Page
10
12
Bipolar Switching Sensors:
The output turns low with the magnetic south pole on the
branded side of the package and turns high with the
magnetic north pole on the branded side. The output
state is not defined for all sensors if the magnetic field is
removed again. Some sensors will change the output
state and some sensors will not.
Unipolar Switching Sensors:
The output turns low with the magnetic south pole on the
branded side of the package and turns high if the mag-
netic field is removed. The sensor does not respond to
the magnetic north pole on the branded side.
Micronas
3
MICRONAS [ MICRONAS ]
