TLE4946-2L High Precision Hall Effect Latch
Product Overview
The TLE4946-2L is a high-precision Hall effect latch designed for demanding applications requiring accurate switching thresholds, even at operating temperatures up to 150C. It features a wide supply voltage range of 2.7 V to 18 V, operation from unregulated power supplies, and high stability of magnetic switching points. The device offers superior temperature stability, low jitter, and high ESD performance. Its active error compensation ensures high resistance to mechanical stress. The TLE4946-2L is ideal for detecting rotor positions in BLDC motors, index counting with small pole wheels, and applications with large air gaps, providing reliable switching information through its digital output signal.
Product Attributes
- Brand: Infineon Technologies
- Product Type: Hall Effect Latch
- Package: PG-SSO-3-2
- Ordering Code: SP000398352
Technical Specifications
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Note/Test Condition |
|---|---|---|---|---|---|---|
| Supply Voltage | VS | 2.7 | 18 | V | ||
| Output Voltage | VQ | -0.7 | 18 | V | ||
| Junction Temperature | Tj | -40 | 150 | C | ||
| Output Current | IQ | 0 | 20 | mA | ||
| Supply Current | IS | 2 | 4 | 6 | mA | VS = 2.7 V ... 18 V |
| Output Saturation Voltage | VQSAT | 0.3 | 0.6 | V | IQ = 20 mA | |
| Output Leakage Current | IQLEAK | 0.05 | 10 | A | for VQ = 18 V | |
| Output Fall Time | tf | 0.02 | 1 | s | RL = 1.2 k; CL = 50 pF | |
| Output Rise Time | tr | 0.4 | 1 | s | ||
| Chopper Frequency | fOSC | 320 | kHz | |||
| Switching Frequency | fSW | 0 | 15 | kHz | (1) | |
| Delay Time | td | 13 | s | (2) | ||
| Output Jitter | tQJ | 1 | sRMS | (3) | ||
| Power-on Time | tPON | 13 | s | (4) | ||
| Thermal Resistance | RthJA | 190 | K/W | (5) | ||
| Operate Point | BOP | 0.5 | 2.0 | 3.5 | mT | |
| Release Point | BRP | -3.5 | -2.0 | -0.5 | mT | |
| Hysteresis | BHYS | 1.0 | 4 | 6.0 | mT | |
| Magnetic Offset | BOFF | -1.5 | 0 | 1.5 | mT | (1) |
| Temperature compensation of magn. thresholds | TC | -350 | ppm/C | |||
| Repeatability of magnetic thresholds | BREP | 20 | T RMS | (2) |
(1) To operate the sensor at the max. switching frequency, the value of the magnetic signal amplitude must be 1.4 times higher than for static fields. This is due to the -3 dB corner frequency of the low pass filter in the signal path.
(2) Systematic delay between magnetic threshold reached and output switching.
(3) Jitter is the unpredictable deviation of the output switching delay.
(4) Time from applying VS 2.7 V to the sensor until the output state is valid.
(5) Thermal resistance from junction to ambient.
2410121545_Infineon-TLE49462L_C1559600.pdf
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