Unipolar Digital Hall-Effect Sensor ICs
The SS340RT/SS440R sensor ICs are small, versatile digital Hall-effect devices that are operated by the magnetic field from a permanent magnet or an electromagnet. They are designed to respond to a single pole: North (SS340RT) or South
(SS440R).
These unipolar Hall ICs are supplied in three different magnetic sensitivities to meet a wide range of potential applications:
• SS341RT and SS441R offer the highest sensitivity, with a typical operating point of 75 G at 25 °C [77 °F].
• SS343RT and SS443R offer medium sensitivity, with a typical operating point of 135 G at 25 °C [77 °F].
• SS349RT and SS449R offer the lowest sensitivity, with a typical operating point of 305 G at 25 °C [77 °F].
These sensors are available in two package styles:
• The SS340RT is available in the miniature SOT-23 surface mount package.
• SS440R is available in the leaded, flat TO-92-style package.
The SS340RT’s small size requires less PC board space, allowing it to be used in smaller assemblies. Its 3 Vdc capability allows for use in low voltage applications, promoting energy efficiency.
The SS340RT Series is available on tape and reel (3000 units per reel); the SS440R Series is available in a bulk package
(1000 units per bag)
What makes our sensors better:
• Robust IC design with ESD Class 2, reverse polarity protection and 150 °C [302 °F] capability
• Package and sensitivity options to better match application needs
• Dependable performance – similar Honeywell sensor ICs have been tested to over 100 million operations
• Honeywell legacy and expertise – 45 years of engineering excellence and Hall effect technology experience
Table 1. SS340RT/SS440R performance Specifications (vsupply = 3 vdc to 24 vdc, 20 ma load, Ta = -40 ºc to 150 ºc [-40 ºf to 302 ºf] except where otherwise specified.)
| Characteristic | Condition | Min. | Typ. | Max. | Unit |
| Supply voltage: SS340RT SS340RT SS440R |
150 °C [302 °F] -40 °C to 125 °C [-40 °F to 257 °F] -40 °C to 150 °C [-40 °F to 302 °F] |
3 3 3 |
- - - |
12 24 34 |
Vdc |
| Supply current | Vsupply = 5 V at 25 °C [77 °F]
Vsupply = 3 V at 25 °C [77 °F] - | - - - | 4 3.5
- | 6 5 8
|
mA |
| Vsat | 20 mA, Gauss >Bop | -
| - | 0.4
| vdc
|
| Output leakage current | Gauss >Bop | -
| - | 10
| uA |
Output switching time:
rise
fall | Vsupply = 12 V at 25 °C [77 °F],
RL = 1.6 kOhm, CL = 20 pF |
- - |
- |
1.5 1.5 |
µs |
Thermal resistance: SS340RT(SOT-23) SS440R (flat TO-92-style) |
- |
- - |
303 303 |
- - |
°C/W |
| Operating temperature | -
| -40 [-40] | - | 150 [302] | °C [°F] |
| Storage temperature | - | -40 [-40] | -
| 150 [302] | °C [°F] |
霍爾傳感器SS449R規(guī)格書↓
霍爾開關(guān)_SS449R_規(guī)格書.PDF
