Datasheet

OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006
Phone: [phone] FAX: [phone] [e-mail] www.optekinc.com
Issue A 02/ 05
Page 2
Hallogic Hall Effect Sensor Assembly
OHB900
(1) Slot blocked with a ferrous material to interrupt magnetic flux.
Symbol Parameter Min Typ Max Units Test Conditions
I
CC
Supply Current 4 7 mA Vcc = 24 V, Output Off
V
OL
Output Saturation Voltage 100 400 mV Vcc = 4.5 V, I
OL
= 20 mA, Slot Open
I
OH
Output Leakage Current 0.1 10.0 µA Vcc = 4.5 V, V
OUT
= 24 V, Slot Blocked
(1)
t
r
Output Rise Time 0.21 1.00 µs
R
L
= 820 Ω, C
L
= 20 pF
t
f
Output Fall Time 0.10 1.00 µs
Electrical Characteristics (Vcc = 4.5 V to 24 V, T
A
= 25° C unless otherwise noted)
U.U.T.
820 Ohm
20 pf
3
2
1
Vcc
Output
Ground
V
OL
OH
V
10%
90%
TrTf
90%
10%
B
OP
RP
B
Magnetic Field
Saturation Voltage vs Temperature
0.10
0.15
0.20
0.25
0.30
0.35
0.40
-40°C 0°C 40°C 80°C 120°C 150°C
Temperature (°C)
Typical Saturation Voltage (V)
R
L
= 820
ohms
Rise & Fall Time vs Temperature
0
50
100
150
200
250
300
350
-40°C 0°C 40°C 80°C 120°C 150°C
Temperature (°C)
Typical Time (ns)
Rise Time
Fall Time
Icc vs Temperature
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
-40°C 0°C 40°C 80°C 120°C 150°C
Temperature (°C)
Typical Icc (mA)
Icc ON (mA)
Icc OFF (mA)
M
S
Center Line
ROP
Vane - Material = 1018 Cold Rolled Steel - 0.03" [0.76mm] Thick
Location = 0.50" [1.27mm] from Bottom of Slot
Right Right Left Left
Operate Release Release Operate
Point Point Point Point
Minimum 0.073" 0.045" -0.045" -0.073"
[1,85mm] [1,14mm] [-1,14mm] [-1,85mm]
Maximum 0.003" -0.005" 0.005" -0.003"
[0,08mm] [-1,27mm] [1.27mm] [-0,08mm]
RRP
LOP LRP
Measurements are referenced to Center Line.