Current Sink Interfacing
3-Wire Sinking Interface
Sinking outputs are often used in negative logic applications, where a low
signal is required for an active state. There, sinking outputs normally have
current ?owing into the device output lead when the device is active. Also
called “open collector outputs,” sinking outputs are compatible with any
logic family since a wide voltage range may be used for Vcc. Furthermore,
the voltage level used to power the Hall effect assembly may differ from
the pull-up resistor to which it is attached. The external pull-up resister
Recommended pull-up resistor values are as follows:
connected between the output and Vcc is required for proper operation.
With the resistor connected as shown, the output will be “pulled up” to
Vcc when off and (approximately) to ground when on.
Volts dc
Ohms
5
1k
9
1.8 k
12
2.4 k
15
3k
24
3k
Sensor Series
Connector Type
Connection Grid
Vcc
Output
Ground
Direction
Speed
MP
GS
VN
SD
12mm circular
Wire Lead
Wire Lead
12mm circular
Wire Lead
Delphi
Pin
Wire Lead
Delphi
1
Brown
Red
1
Brown
A
1
Red
C
4
Black
Green
4
Black
B
3
Green
3
Blue
Black
3
Blue
C
2
Black
D
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
B
Dimensions
inches (mm)
All tolerances ±0.005 (0.13) unless otherwise noted.
B
4
3
A
C
Magnet
1
VCC
Regulator
V Reg
C VCC (brown)
Pull-up
? 0.94
(23.88)
4
3
Pull-up
Resistor
Output
Ground
Magnet
V Reg
Conditioning
Logic
B Resistor Speed
A (black) Direction
(white)
D Ground
(blue)
1
*
2
0.87
(22.1)
Steel Bushing
? 0.26
0.84
(6.6)
(21.33)
27
Speci?cations subject to change without notice.
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