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Specifications
Current - Supply:
5.3mA
Operating Temperature:
-40℃~+155℃
Voltage - Supply:
4.5V~18V
Mfr. Part #:
TLE4922XANF
Package:
SSO-4
Key Attributes
Model Number:
TLE4922XANF
Product Description
Product Description
The TLE4922 is an active mono cell Hall sensor designed for detecting motion and position of ferromagnetic and permanent magnet structures. It features a self-calibration module for enhanced accuracy during operation. This sensor is specifically optimized as a speed sensor for small engine applications (2- and 3-wheelers), including crankshaft speed and position sensing, transmission speed on the output shaft, and speedometer applications. Its excellent sensitivity, accuracy, and wide operational temperature range make it suitable for harsh environments.
Key Features and Benefits
- Twist independent mounting (TIM) for universal fit.
- Small, thin PG-SSO-4-1 package.
- Protection against harsh environments: short-circuit current limitation, over-temperature shutdown, and reverse voltage protection.
- Superior performance with adaptive symmetrical hysteresis/threshold.
- Independent of back bias magnet polarity due to 400mT full scale range.
- Enhanced EMC & ESD robustness (ESD: 3kV HBM).
- Wide operating temperature range: Tj from -40 C to 155 C.
- True zero speed detection up to 8kHz signal frequency.
- Enables low-power applications with Idd = 5mA at Vdd = 9V.
- Large operating voltage range: 4.5V to 18V.
- Robustness against wheel run-outs for sensing a broad range of wheels.
Technical Specifications
| Parameter | Symbol | Values | Unit | Note or Test Condition |
|---|---|---|---|---|
| Absolute Maximum Ratings | ||||
| Supply voltage | VS | -18 to 18 | V | |
| Supply voltage AC | VSAC | - to 30 | V | max. 1 min with RSERIES = 200 |
| Output OFF voltage | VQ | -0.3 to 18 | V | max. 60 min @ TA = 25C |
| Output ON voltage | VQ | - to 18 | V | |
| Junction temperature | TJ | -40 to 195 | C | 1) In temperature range between operating temperature and absolute maximum temperature no functionality is guaranteed. |
| Overall lifetime | TPol | -40 to 150 | C | 2) Maximum exposure time at other junction temperatures shall be calculated based on the values specified using the Arrhenius-model. |
| ESD compliance | ESDHBM | -3 to 3 | kV | HBM according ANSI/ESDA/JEDEC JS-001 |
| Operating Range | ||||
| Supply voltage | VS | 4.5 to 16 | V | |
| Continuous output ON current | IQ | - to 8.8 | mA | |
| Operating junction temperature | TJ | -40 to 155 | C | 1) Typical RthJA is 170K/W. As soon as back bias magnet is attached or customer mold covers the TLE4922 this value will decrease due to larger surface and mass of the module. Maximum exposure time at other junction temperatures shall be calculated based on the values specified using the Arrhenius-model. |
| Frequency range of magnetic input signal | f | 0 to 8000 | Hz | 2) Maximum one additional pulse may occur due to temperature variation during stand still. |
| Electrical Characteristics | ||||
| Supply current | IS | 3.5 to 7.0 | mA | Typ. 5.3 mA @ Vdd=9V |
| Output saturation voltage | VQSAT | - to 0.4 | V | IQ = 8.8 mA |
| Output leakage current | IQLEAK | - to 10 | A | |
| Current limit for short-circuit protection | IQSHORT | 37 to 52 | mA | 1) Parameter is characterized by simulation/verification |
| Junction temperature for output protection | TPROT | 175 to 215 | C | 1) Output will shut down (high impedance) when exceeded |
| Power on time | tON | 0.7 to 0.9 | ms | 1) |
| Output fall time | tf | 2.2 to 3.8 | s | 2) Time between 20% and 80% value of VLOAD. VLOAD = 5 V, CLOAD =4.7 nF, RLOAD = 1.2 k |
| Output rise time | tr | 1 to 20 | s | 1)2) VLOAD = 5 V, CLOAD =4.7 nF, RLOAD = 1.2 k |
| Delay time | td | 12.5 to 23.5 | s | 1)3) Only valid for the falling edge. VLOAD = 5 V, CLOAD =4.7 nF, RLOAD = 1.2 k, f=5kHz, see Figure 2-1 |
| Magnetic Characteristics and Self-Calibration Characteristics | ||||
| Linear Region | BLR | -400 to 400 | mT | 1) is calculated out of measured sensitivity |
| Peak to peak magnetic hysteresis | BMIN | 2.0 to 5.3 | mT | 1) Full frequency range |
| Temperature compensation of magnetic hysteresis | TCBmin | -650 to - | ppm | Temperature range from 25C to 150C |
| Back Bias Magnet Range | BBIAS | -400 to 400 | mT | At Ta=25C, please notice relation between back bias magnet and linear region as described in user manual |
| Duty Cycle | DC | 40 to 70 | % | 2) 30 to 70 % Including EMC (magnetic distortion) |
| Number of falling output edges required to be calibrated | nCalib | - to 3 | - | 2)3) Maximum one additional pulse may occur due to temperature variation during stand still. At 4th falling edge full accuracy reached. |
| Relative phase error in calibrated mode | rel | 0.3 to 1.5 | crank | 2)4) Performance measured on wheel described in Chapter 2.6 within air gap range 0.5mm to 3.2mm. Forward and backward rotational direction. Temperature and airgap included. |
| Output falling edge repeatability (phase jitter) in calibrated mode | jitter | - to 0.2 | crank | 2)4) 99.7 %, 3 pulses out of 1000 above limit. Equivalent to 3sigma of a Gaussian distribution. |
| Reference Target Wheel | ||||
| Operational IC air-gap | AG | - to 3.2 | mm | 1)2) Parameter is characterized by verification. Measured from surface of package to toothed wheel, explained in Figure 2-2. Field strength of 300mT at 0.7mm above surface of back-bias magnet (is sensitive area of TLE4922) |
| Air-gap variation over one complete target revolution. Global run-out. | AGGLRO | - to 0.5 | mm | 1) Difference between min. and max. air-gap over one complete target revolution. |
| Reference target wheel geometry | Tooth notch ratio | 1.00 | - | Remarks: Material ST37 |
2410121836_Infineon-TLE4922XANF_C1559854.pdf
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