DESCRIPTION：
The 2SS52M Series Digital Magnetoresistive Sensors are omnipolar, solid-state sensors with a built-in magnetoresistive bridge integrated on silicon and encapsulated in a plastic package. The integrated circuit also includes a band-gap regulator and a digital output in response to very low magnetic fields.
These sensor ICs may be operated with either a North or a South magnetic pole applied in parallel to the sensor IC. The polarity does not need to be identified, simplifying installation in single pole applications and doubling the resolution in rotating magnet applications.
These small and highly sensitive omnipolar devices have become a popular building block for flow metering, motor RPM and cylinder position sensing.
FEATURES
• High sensitivity: 25 Gauss maximum operate point allows for extended sensing distance or a smaller magnet
• 3.8 Vdc to 30 Vdc supply voltage range
• Omnipolar sensing: Activates with either North or South pole
• Temperature range: -40 °C to 150 °C [-40 °F to 302 °F]
• Digital current-sinking output
• RoHs compliant, meets Directive 2002/95/EC
POTENTIAL APPLICATIONS
Industrial
• High frequency flow sensing in HVAC, water, fuel meters, and gas utility meters
• Anti-tamper detection in water, electric, and gas utility meters
• Liquid level detection
• Motor RPM sensing
• In-cylinder position sensing
Medical
• RPM sensing in exercise and rehabilitation equipment
• Magnetic interrupt in exercise and rehabilitation equipment
• Absence/presence detection in infusion pumps
• Position sensing of medication dispensing cabinet drawers
• Incline position sensing in hospital beds
White goods
• Lid, door and drawer position detection
• Fluid flow detection
• Liquid level detection
| Characteristic | Condition | Min. | Typ. | Max. | Unit |
| Supply voltage | no load | 3.8 | — | 30 | Vdc |
Supply current:
operated
released | 24 °C ±2 °C, 16 Vdc ±0.5 % Vsupply
24 °C ±2 °C, 16 Vdc ±0.5 % Vsupply | — — | 6 6 | 11
10 | mA |
| Output leakage current (released) | — | — | — | 10.0 | μA |
| Output voltage (operated) | sinking, 20 mA max. | — | 0.25 | 0.40 | V |
Outptut switching time:
rise (10 % to 90 %)
fall (90 % to 10 % | 1600 Ohm, 20 pF load
1600 Ohm, 20 pF load | — — | 0.2
0.1 | 1.5
1.5 | μs |
| Operating temperature range | — | -40 [-40] | — | 150 [302] | °C [°F] |
Soldering temperature and time:
SS552MT
all other catalog listings | infrared reflow process: peak temperature 245 °C [473 °F] for 10 s max.
wave soldering process: 250 °C to 260 °C [482 °F to 500 °F] for 3 s max. |
| Temperature Range | Operate | Release | Differential |
| Minimum | Maximum | Minimum | Minimum | Maximum |
| -20 °C to 85 °C [-4 °F to 185 °F] | — | 25 Gauss | 5 Gauss | — | 7 Gauss |
| -40 °C to 150 °C [-40 °F to 302 °F] | — | 25 Gauss | 4 Gauss | — | 8 Gauss |
| Characteristic | Min. | Typ. | Max. | Unit |
| Supply voltage | -0.5 | — | 30 | Vdc |
Voltage externally applied to output:
OFF condition only
OFF or ON condition | —
-0.5 | —— | 30
— | Vdc |
| Output current | — | — | 20 | mA |
| Storage temperature | -40 [-40] | — | 150 [302] | °C [°F] |
| Magnetic flux | — | — | no limit | Gauss |
2SS52M磁傳感器樣本下載↓
2SS52M磁阻傳感器.PDF
