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SS449R

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产品说明

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.)

CharacteristicConditionMin.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 currentVsupply = 5 V at 25 °C [77 °F]

Vsupply = 3 V at 25 °C [77 °F]

-

-

-

-

4

3.5

-

6

5

8


mA

Vsat20 mA, Gauss >Bop-
-0.4
vdc
Output leakage currentGauss >Bop-
-10
uA
Output switching time:
rise
fall
Vsupply = 12 V at 25 °C [77 °F],
R= 1.6 kOhm, C= 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








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