Product Overview
The TLV4946K and TLV4946-2K are value-optimized Hall Effect Latches designed for industrial and consumer applications. These high-precision devices feature accurate switching thresholds and superior temperature stability, operating from a wide supply voltage range of 2.7 V to 18 V with reverse battery protection. They are ideal for detecting rotor positions in Brushless DC (BLDC) motors and for index counting applications. The latches offer high sensitivity, stability of magnetic switching points, and resistance to mechanical stress due to active error compensation and chopper techniques. They provide a digital open-drain output signal and are available in a lead-free and halogen-free PG-SC59-3-5 SMD package.
Product Attributes
- Brand: Infineon Technologies
- Product Family: TLV4946K, TLV4946-2K
- Package Type: PG-SC59-3-5 (SOT23 compatible)
- Material: Lead-free and halogen-free
- Certifications: Not specified (refer to datasheet for detailed compliance)
- Origin: Germany (Published by Infineon Technologies AG)
Technical Specifications
| Model | Product Type | Order Code | Supply Voltage (Vs) | Output Current (IQ) | Output Saturation Voltage (VQSAT) | Operating Temperature (TA) | Magnetic Field Operation |
|---|---|---|---|---|---|---|---|
| TLV4946K | Hall Effect Latch | SP000604402 | 2.7 V to 18 V | 0 to 20 mA | 0.3 V to 0.6 V (typ. 0.3 V) | -40 C to 85 C | BOP: 6.1 to 19.2 mT; BRP: -19.2 to -6.1 mT |
| TLV4946-2K | Hall Effect Latch | SP000604332 | 2.7 V to 18 V | 0 to 20 mA | 0.3 V to 0.6 V (typ. 0.3 V) | -40 C to 85 C | BOP: 0.5 to 3.5 mT; BRP: -3.5 to -0.5 mT |
| Parameter | Symbol | Typical Value | Unit | Notes |
|---|---|---|---|---|
| Supply Current | IS | 4 | mA | Vs=2.7 V...18 V |
| Output Fall Time | tf | 0.02 | s | RL=1.2k , CL=50 pF |
| Output Rise Time | tr | 0.4 | s | RL=1.2k , CL=50 pF |
| Chopper Frequency | fOSC | 320 | kHz | - |
| Switching Frequency | fSW | 152 | kHz | Requires 1.4x magnetic signal amplitude |
| Delay Time | td | 13 | s | Systematic delay |
| Output Jitter | tQJ | 1 | sRMS | For 1 kHz square wave signal |
| Power-on Time | tPON | 13 | s | Vs > 2.7 V |
| ESD Robustness (HBM) | VESD,HBM | 4 | kV | 1.5 k, 100 pF |
| Reverse Battery Protection | Vs | -18 | V | Absolute Maximum Rating |
| Maximum Junction Temperature | TJ | 150 | C | Absolute Maximum Rating |
Note: Not suitable for automotive applications.
2412090931_Infineon-TLV4946KFTSA1_C2152586.pdf
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