Hall effect latch Infineon TLE4946-2K with wide voltage operation and superior temperature stability
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Product Description
Product Overview
The TLE4946-2K is a high-precision Hall effect latch designed for demanding applications requiring accurate magnetic switching thresholds up to 150C. It features a wide supply voltage range (2.7V to 24V), operation from unregulated power supplies, and superior temperature stability. Its active error compensation and chopper techniques ensure high accuracy and resistance to mechanical stress. The device offers a digital output signal with 20mA current sink capability and high ESD performance, making it ideal for BLDC motor commutation and other position sensing applications.
Product Attributes
- Brand: Infineon Technologies
- Product Type: Hall Effect Latch
- Package: SC59 (SOT23 compatible)
Technical Specifications
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Note/Test Condition |
|---|---|---|---|---|---|---|
| Absolute Maximum Ratings | ||||||
| Max. junction temperature | TJ | -40 | - | 150 | C | - 155 for 2000 h (not additive) - 165 for 1000 h (not additive) - 175 for 168 h (not additive) - 195 for 3 x 1 h (additive) |
| Supply voltage | VDD | -18 | - | 26 | V | -18 for 1h, RS 200 -18 for 5min, RS 200 24 for 1h |
| Supply current through protection device | IS | - | 50 | +50 | mA | |
| Output voltage | VQ | -0.7 | - | 26 | V | - 18 V - 26 for 5min @ 1.2k pull up |
| Storage temperature | TS | -40 | - | 150 | C | |
| ESD robustness (HBM: 1.5 k, 100 pF) | VESD,HBM | - | 4 | - | kV | According to EIA/JESD22-A114-B |
| Operating Range | ||||||
| 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 | |
| Electrical Characteristics | ||||||
| Supply current | IS | 2 | 4 | 6 | mA | VS = 2.7 V ... 18 V |
| Reverse current | ISR | 0 | 0.2 | 1 | mA | VS = 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 | 1) kHz | 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. |
| Delay time | td | - | 13 | - | s | 2) Systematic delay between magnetic threshold reached and output switching |
| Output jitter | tQJ | - | 1 | - | sRMS | 3) Jitter is the unpredictable deviation of the output switching delay. Typical value for square wave signal 1 kHz |
| Power-on time | tPON | - | 13 | - | s | 4) Time from applying VS 2.7 V to the sensor until the output state is valid. VS 2.7 V |
| Thermal resistance | RthJA | - | 100 | - | K/W | 5) Thermal resistance from junction to ambient |
| Magnetic Characteristics | ||||||
| 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 | |
| Offset | BOFF | -1.5 | 0 | 1.5 | mT | 1) Boff = (Bop + Brp)/2 |
| Temperature compensation of magn. thresholds | TC | -350 | - | - | ppm/C | |
| Repeatability of magnetic thresholds | BREP | - | 20 | - | TRMS | 2) BREP is equivalent to the noise constant |
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Company
Changsha Purple Horn E-Commerce Co., Ltd.
Location
2332 Kaibin Commercial Plaza, No. 419 Shaoshan Middle Road, Shazitang Street, Yuhua District, Changsha City, Hunan Province
Contact Person
Coral