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Specifications
Mfr. Part #:
LF32115TMR
Package:
SOT-23
Key Attributes
Model Number:
LF32115TMR
Product Description
Product Overview
The LF32115TMR is a high-sensitivity, low-power TMR digital unipolar magnetic switch integrating Tunneling Magnetoresistance (TMR) and CMOS technology. It offers fast response, accurate switching points, excellent thermal stability, and immunity to stray field interference. The device features an X-axis sensing direction, an open-drain output, and operates with both north and south magnetic poles. Its low power consumption (200nA) makes it ideal for battery-powered applications. The output switches low when the magnetic field exceeds the operate point (BOP) and high when it drops below the release point (BRP).
Product Attributes
- Brand: Littelfuse
- Technology: Tunneling Magnetoresistance (TMR)
- Certifications: RoHS compliant
Technical Specifications
| Parameter | Test Conditions | Min. | Typ. | Max. | Unit |
| Magnetic Characteristics | TA = +25C, Vcc = 3.0V | Gauss | |||
| BOP (Operation Point) | 9 | 17 | 25 | Gauss | |
| BRP (Release Point) | 5 | 13 | 20 | Gauss | |
| BH (Hysteresis) | TA = +25C, Vcc = 3.0V | -- | 4 | -- | Gauss |
| Electrical Characteristics | TA = +25C, Vcc = 3.0V | ||||
| VCC (Supply Voltage) | 1.8 | 3 | 5.5 | V | |
| Output leak current (Ileak) | Output = High, Vcc = 3V, Vout = 3V | 1 | A | ||
| Output turn-off Resistance (Roff) | Output = High | -- | -- | 10 M | |
| Output turn-on Resistance (Ron) | Output = Low | -- | -- | 10 | |
| Output Low Voltage (VOL) | Output = Low, Vcc = 3V, Isink = 3mA | 0.1 | V | ||
| ICC (Supply Current) | Output Open | 200 | nA | ||
| Frequency Response | -- | -- | 50 | Hz | |
| Absolute Maximum Ratings | |||||
| VCC (Supply Voltage) | @TA = +25C | 7.0 | V | ||
| VRCC (Reverse Supply Voltage) | @TA = +25C | 0.3 | V | ||
| IOUTSINK (Output Current) | @TA = +25C | 20 | mA | ||
| B (Magnetic Flux Density) | @TA = +25C | 4000 | Gauss | ||
| TA (Operating Temperature) | -40 | 125 | C | ||
| Tstg (Storage Temperature) | -50 | 150 | C |
2412061721_Littelfuse-LF32115TMR_C3715898.pdf
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