3132
AND
3133
ULTRA-SENSITIVE BIPOLAR
HALL-EFFECT SWITCHES
These Hall-effect switches are designed for magnetic actuation using
a bipolar magnetic field, i.e., a north-south alternating field. They
combine extreme magnetic sensitivity with excellent stability over
varying temperature and supply voltage. The high sensitivity permits
their use with multi-pole ring magnets over relatively large distances.
Each device includes a voltage regulator, quadratic Hall voltage
generator, temperature stability circuit, signal amplifier, Schmitt trigger,
and open-collector output on a single silicon chip. The on-board regula-
tor permits operation with supply voltages of 4.5 to 24 V. The switch
output can sink up to 25 mA. With suitable output pull up, they can be
used directly with bipolar or MOS logic circuits.
Data Sheet
27631.2B
V
X
CC
1
2
3
GROUND
Dwg. PH-003A
OUTPUT
SUPPLY
The three package styles available provide a magnetically optimized
package for most applications. Suffix 鈥楲T鈥?is a miniature SOT-89/TO-
243AA transistor package for surface-mount applications; suffixes 鈥楿鈥?
and 鈥楿A鈥?feature wire leads for through-hole mounting. Prefix 鈥楿GN鈥?/div>
devices are rated for continuous operation over the temperature range of
-20擄C to +85擄C, prefix 鈥楿GS鈥?devices over an extended range of -40擄C
to +125擄C, and prefix 鈥楿GL鈥?devices over the range of -40擄C to +150擄C.
Pinning is shown viewed from branded side.
FEATURES
I
4.5 V to 24 V Operation
I
Reverse Battery Protection
I
Superior Temperature Stability
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
CC
. . . . . . . . . . . . .
25 V
Reverse Battery Voltage, V
RCC
. . . .
-35 V
Magnetic Flux Density, B . . . .
Unlimited
Output OFF Voltage, V
OUT
. . . . . . . .
25 V
Continuous Output Current, I
OUT
.
25 mA
Operating Temperature Range, T
A
Prefix UGL . . . . . . .
-40
擄
C to +150
擄
Prefix UGN . . . . . . . .
-20
擄
C to +85
擄
C
Prefix UGS . . . . . . .
-40
擄
C to +125
擄
C
Storage Temperature Range,
T
S
. . . . . . . . . . . . . . .
-65
擄
C to +150
擄
C
I
Superior Supply Voltage Stability
I
Activate with Multi-Pole Ring Magnets
I
Solid-State Reliability
I
Small Size
I
Constant Output Amplitude
I
Resistant to Physical Stress
Always order by complete part number
including prefix and suffix, e.g.,
UGN3132LT .
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