Product Overview
The SL172x Series is a high-performance, low-power Hall switch sensor designed for space-constrained and battery-sensitive systems. It offers versatile magnetic threshold options, switching frequencies, and package types to suit various applications. This sensor detects a single N-pole magnetic field, providing a low output level when the N-pole magnetic induction exceeds the operating point (BOP) and a high output level when it drops below the release point (BRP). Featuring built-in temperature compensation and clock logic circuits, it ensures stable operating points and switching frequencies. The sensor operates within a wide voltage range of 1.8V to 5.5V and is available in SOT-23-3L and TO-92S packages. Its typical applications include switch detection in laptops and tablets, TWS earbuds, mobile phones, electronic locks, valve position detection, and utility meters.
Product Attributes
- Brand: SLKORMicro
- Certifications: RoHS compliant
- ESD Performance: HBM 8KV
Technical Specifications
| Category | Specification | Details |
|---|---|---|
| Low Power Consumption | 25Hz Version | 0.9uA @ 1.8V |
| 100Hz Version | 2.4uA @ 1.8V | |
| Operating Voltage Range | VDD | 1.8V ~ 5.5V |
| Magnetic Field Threshold (BOP) | Optional | -50Gs (High Threshold) |
| Magnetic Field Detection | Single N-pole | |
| Output Type | CMOS Push-Pull | |
| Package | SOT-23-3L | 3 Pins |
| TO-92S | 3 Pins | |
| Operating Temperature Range | TA | -40 ~ 85 |
| ESD Performance | HBM | 8KV |
| Pin Definitions (SOT-23-3L) | Pin 1 | VDD (Power Supply Input) |
| Pin 2 | OUTPUT | |
| Pin 3 | GND (Ground) | |
| Pin Definitions (TO-92S) | Pin 1 | VDD (Power Supply Input) |
| Pin 2 | GND (Ground) | |
| Pin 3 | OUTPUT | |
| Absolute Maximum Ratings | VDD | 6 V |
| TSTG (Storage Temp.) | -50 ~ +150 | |
| TJ (Max. Junction Temp.) | +150 | |
| Reference Operating Conditions | TA (Operating Temp.) | -40 ~ 85 |
| Electrical Parameters (SL172xTX Series, 100Hz) | IDD(AVG) @ 1.8V | 2.4 A (Typical) |
| IDD(Awake) @ 1.8V | 2.0 mA (Typical) | |
| IDD(Sleep) @ 1.8V | 0.4 A (Typical) | |
| TAWAKE | 10 s | |
| Electrical Parameters (SL172xSX Series, 25Hz) | IDD(AVG) @ 1.8V | 0.9 A (Typical) |
| IDD(Awake) @ 1.8V | 2.0 mA (Typical) | |
| IDD(Sleep) @ 1.8V | 0.4 A (Typical) | |
| TAWAKE | 10 s | |
| Magnetic Parameters (SL172xXH Series) | BOPN | -50 Gauss (Typical) |
| BRPN | -35 Gauss (Typical) | |
| Hysteresis (|BOPN|-|BRPN|) | 15 Gauss (Typical) | |
| Ordering Information | SL1723TH | SOT-23-3L, -50Gauss, 100Hz, -40~85 |
| SL1723SH | SOT-23-3L, -50Gauss, 25Hz, -40~85 | |
| SL1729TH | TO-92S, -50Gauss, 100Hz, -40~85 | |
| SL1729SH | TO-92S, -50Gauss, 25Hz, -40~85 |
2504211840_Slkor-SL1723SH_C48392719.pdf
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