Fea tures
Lead fin ish is hot sol der dip
Her metic ce ramic pack age
Op er ates over a broad range of
sup ply volt ages
Ex cel lent tem pera ture sta bil ity to
op er ate in harsh en vi ron ments
Hall ele ment, lin ear am pli fier, and
Schmitt trig ger on a sin gle Hal logic
sili con chip
Proc ess ing pat terned af ter class B or
class S of MIL- STD- 883
Suit able for mili tary and space
ap pli ca tions
De scrip tion
The chip contains a monolithic integrated
circuit which incorporates a Hall element,
a linear amplifier, and Schmitt trigger on
a single silicon chip. Included on-chip is
a bandgap voltage regulator to allow
operation with a wide range of supply
voltages. The device features logic level
output and is capable of 25 mA of sink
current. Output amplitude is constant at
switching frequencies from DC to over
200 kHz.
The OMH360B is processed to Optek's
own screening procedures patterned
after class B of MIL-STD-883. OMH360S
is patterned after class S. Typical
screening and lot acceptance provided
on page 13-4.
Ab so lute Maxi mum Rat ings (T
A
= 25
o
C un less oth er wise noted)
Sup ply Volt age, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 V
Stor age Tem pera ture Range, T
S
. . . . . . . . . . . . . . . . . . . . . . . . . . -65
o
C to +150
o
C
Op er at ing Tem pera ture Range, T
A
. . . . . . . . . . . . . . . . . . . . . . . . . -55
o
C to +125
o
C
Lead Sol der ing Tem pera ture [1/8 inch (3.2mm) from case for 5 sec. with sol der ing
iron]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
o
C
Out put ON Cur rent, I
SINK
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mA
Out put OFF Volt age, V
OUT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 V
Mag netic Flux Den sity, B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Un lim ited
Prod uct Bul le tin OMH360
June 1996
High Re li abil ity Hal logic
Hall Ef fect Sen sor
Types OMH360B, OMH360S
Optek Technology, Inc. 1215 W. Crosby Road Carrollton, Texas 75006 (972) 323-2200 Fax (972) 323-2396
Functional Block Diagram
14-14
Types OMH360B, OMH360S
Op tek re serves the right to make changes at any time in or der to im prove de sign and to sup ply the best prod uct pos si ble.
Op tek Tech nol ogy, Inc. 1215 W. Crosby Road Car roll ton, Texas 75006 (972)323- 2200 Fax (972)323- 2396
Magnetic Operate Point vs.
Ambient Temperature
Magnetic Release Point vs.
Ambient Temperature
Supply Current vs.
Ambient Temperature
Output Saturation Voltage vs.
Ambient Temperature
T
A
- Ambient Temperature -
o
C
T
A
- Ambient Temperature -
o
C
T
A
- Ambient Temperature -
o
C
T
A
- Ambient Temperature -
o
C
14-15
Elec tri cal Char ac ter is tics (T
A
= 25
o
C, V
CC
= 4.5 V to 24 V un less oth er wise noted)
SYM BOL
PA RAME TER
MIN TYP MAX UNITS
TEST CON DI TIONS
B
OP
Magnetic Operate Point
235
360
465
Gauss
B
RP
Magnetic Release Point
170
280
360
Gauss
B
H
Magnetic Hysteresis
30
80
150
Gauss
I
CC
Supply Current
5.0
9.0
mA
V
CC
= 24 V, Output On
V
OL
Output Saturation Voltage
125
300
mV
V
CC
= 4.5 V, I
OL
= 15 mA
I
OH
Output Leakage Current
0.1
10.0
A
V
CC
= 24 V, V
OUT
= 24 V
t
r
Output Rise Time
0.13
1.00
s
R
L
= 820
, C
L
= 20 pF
t
f
Output Fall Time
0.19
1.00
s
R
L
= 820
, C
L
= 20 pF
Typical Performance Curves
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