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PDF TLE4923 Data sheet ( Hoja de datos )
| Número de pieza | TLE4923 | |
| Descripción | Dynamic Differential Hall Effect Sensor IC | |
| Fabricantes | Infineon Technologies AG | |
| Logotipo |  |
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Dynamic Differential Hall Effect Sensor IC
TLE 4923
Features
• Advanced performance
• Higher sensitivity
• Symmetrical thresholds
• High piezo resistivity
• Reduced power consumption
• South and north pole pre-induction possible
• AC coupled
• Digital output signal
• Two-wire interface
• Large temperature range
• Large airgap
• Low cut-off frequency
• Protection against reversed polarity
Bipolar IC
P-SSO-3-6
P-SSO-3-6
Type
TLE 4923
Marking
4923 B
Ordering Code
Q62705-K408
Package
P-SSO-3-6
The differential Hall effect sensor TLE 4923 is compatible to the TLE 4921-3U, except
for having a 2-wire interface. The TLE 4923 provides high sensitivity, a superior stability
over temperature and symmetrical thresholds in order to achieve a stable duty cycle.
TLE 4923 is particularly suitable for rotational speed detection and timing applications of
ferromagnetic toothed wheels such as in anti-lock braking systems, transmissions,
crankshafts, etc. The integrated circuit (based on Hall effect) provides a digital signal
output with frequency proportional to the speed of rotation. Unlike other rotational
sensors differential Hall ICs are not influenced by radial vibration within the effective
airgap of the sensor and require no external signal processing.
Data Sheet 1 2000-07-01
1 page  
TLE 4923
Absolute Maximum Ratings
Parameter
Symbol Limit Values Unit
min.
max.
Supply voltage
VS
– 181)
24
V
Capacitor voltage
VC
– 0.3
3
V
Junction temperature
Junction temperature
Junction temperature
Junction temperature
Tj
Tj
Tj
Tj
150 °C
160 °C
170 °C
190 °C
Storage temperature
TS – 40 150 °C
Thermal resistance
Rth JA
1) Reverse current drawn by the device < 10 mA
190 K/W
2) Can be reduced significantly by further packaging process, e. g. overmolding.
The device is ESD protected up to 2 kV (HL test procedure)
Remarks
5000 h
2500 h
500 h
4h
2)
Note: Stresses above those listed here may cause permanent damage to the device.
Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Operating Range
Parameter
Supply voltage
Junction temperature
Pre-induction
Differential induction
Symbol Limit Values
min.
max.
VS 4.5
18
Tj – 40 190
B0 – 500 500
∆B – 40 40
Unit Remarks
V
°C
mT At Hall probe;
independent of
magnet
orientation
mT
Note: Unless otherwise noted, all temperatures refer to junction temperature.
In the operating range the functions given in the circuit description are fulfilled.
Data Sheet 5 2000-07-01
5 Page 
TLE 4923
Gear Wheel
Hall Sensor 1
Hall Sensor 2
Signal
Processing
Circuitry
S (N)
Permanent Magnet
N (S)
AEA01261
Figure 10 TLE 4923, with Ferromagnetic Toothed Wheel
Magnet Wheel
S
S
N
Hall Sensor 1
Hall Sensor 2
Signal
Processing
Circuitry
Figure 11 TLE 4923, with Magnet Wheel
Data Sheet
11
AEA01262
2000-07-01
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet TLE4923.PDF ] | |
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