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Hall Effect Gear Tooth Sensors
BBGTS99
The BBGTS99
Hall Effect Gear Tooth Sensor uses a magnetically biased Hall Effect
integrated circuit to accurately sense movement of ferrous metal
targets. This specially designed integrated circuit, with bias
magnet and discrete capacitor, is sealed in plastic or metal package
for physical protection and cost effective installation. The units
function under power supply from 6V to 24V DC. Output is digital,
current sinking (open collector). Reverse polarity protection is
standard. The sensor will not be damaged if power is inadvertently
wired backwards
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Features
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Sensing
ferrous metal targets
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Digital
current sinking output (open collector)
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Good
signal-to-noise ratio
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Excellent
low speed performance
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Output
amplitude not dependent on RPM
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Fast
operating speed, over 100kHz
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EMI
resistant
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Reverse
polarity protection and transient protection
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Wide
operating temperature -40°C ~ +135C.
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Applications
Automotive and Heavy Duty Vehicles:
• Camshaft and crankshaft speed
• Sprocket speed and position
• Chain link conveyor speed/distance Transmission speed
• Stop motion detector Tachometers
• High speed low cost proximity Anti-skid/traction control
• Tachometers, counters.
Industrial Areas:
• Sprocket speed
•Chain link conveyor speed/
•Stop motion detector
•High speed low cost proximity
• Tachometers, counters.
Absolute Maximum Ratings
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Supply Voltage
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-30V～+30V
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Output Voltage
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-0.5V～+30V
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Output Current
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Sinking 12mA
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Operating Temperature Range
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-40°C～+135°C
(-40°C ~ +150°C realizable) |
Order
Guide
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Part number
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BBGTS99
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Supply Voltage
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6V～24V
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Output
Saturation Voltage |
0.4V（Load
off） |
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Sense Distance
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1mm～2mm
(-40°C～135°C/150°C,10～8000rpm
Use reference target wheel) |
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Cross Reference
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Siemens VDO
Sensors |
Reference Target
Wheel
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Tooth Height
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Tooth Width
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Tooth Spacing
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Target Thickness
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Teeth Number
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0.20in (5.08mm)
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0.10in (2.54mm)
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0.70in (17.78mm)
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0.25in (6.35mm)
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60
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Characteristics will
vary due to target size, geometry, location, and material.
Test Conditions
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Air gap
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0.04 to 0.08 in.
(1.02 to 2.03mm) |
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Voltage Supply
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+4.5 to +24V
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RPM
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10 min., 3600
max. |
Optimum sensor
performance is dependent on the following variables which must
be considered in combination:
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Target material, geometry, and speed
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Gap
between sensor and target
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Ambient
temperature
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Magnetic material in close proximity.
Application Notes
The output of these sensors is sinking current (open collector). A
pull-up resistor (1kΩ ~ 10kΩ) should be
connected to the
sensor output circuit (between power supply + and output).
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