High Sensitive Digital-Unipolar Hall Effect Sensor
The SLSS341R is a south-sensitive unipolar Hall effect switch designed with Bipolar technology. It integrates an on-chip Hall element voltage generator, a voltage regulator for operation from 3.8V to 40V, reverse voltage protection, temperature compensation circuitry, a small-signal amplifier, a Schmitt trigger, and an open-collector output. The sensor is designed to respond to South magnetic poles, turning the output low when the magnetic flux density exceeds the operate point and holding it until the flux density drops below the release point. It is available in multiple RoHS-compliant packages including TO-92 and SOT-23.
Download PDF DatasheetProduct Features
- ◆ Miniature construction
- ◆ High sensitivity of 60/40 Gauss (typ.)
- ◆ Wide operating voltage range: 3.8 Vdc to 40 Vdc
- ◆ Wide operating temperature range: -40°C to 125°C
- ◆ High ESD performance up to ±4 kV
- ◆ Open Collector Output
Technical Specification
| Parameter | Symbol | Test Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Electrical Characteristics | ||||||
| Operating Voltage | VDD | 3.8 | 40 | V | ||
| Supply Current | IDD | 6 | 9 | mA | ||
| Leakage Current | Ile | Off condition | 10 | uA | ||
| Output Saturation Voltage | Vsat | Iout=20mA, On condition | 0.4 | V | ||
| Output Rise Time | Tr | Pullup resistor =1kΩ, Load cap=20pF | 1 | uS | ||
| Output Fall Time | Tf | Pullup resistor =1kΩ, Load cap=20pF | 1.5 | uS | ||
| Magnetic Characteristics | ||||||
| Operate Point | Bop | Pullup resistor =1kΩ, Load cap=20pF | 30 | 60 | 80 | Gauss |
| Release Point | Brp | Pullup resistor =1kΩ, Load cap=20pF | 10 | 40 | 60 | Gauss |
| Hysteresis | Bhys | Pullup resistor =1kΩ, Load cap=20pF | 10 | 20 | 40 | Gauss |
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