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Honeywell International Electronic Components Datasheet

SS495A2 Datasheet

Solid State Hall Effect Sensors

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Linear Hall-effect Sensor ICs:
SS490 Series
DESCRIPTION
The SS490 Series are small, versatile, linear Hall-effect
devices which are operated by the magnetic field from a
permanent magnet or an electromagnet. The ratiometric
output voltage is set by the supply voltage and varies
in proportion to the strength of the magnetic field. The
integrated circuitry provides increased temperature stability
and sensitivity. Laser-trimmed, thin film resistors provide high
accuracy (null to ±%, sensitivity up to ±3%) and temperature
compensation. They respond to either positive or negative
Gauss, monitoring either or both magnetic poles. The quad
Hall sensing element minimizes the effects of mechanical
or thermal stress on the output. The positive temperature
coefficient of the sensitivity (+0.02%/°C typical) helps
compensate for the negative temperature coefficients of
low-cost magnets, providing a robust design over a wide
temperature range. Rail-to-rail operation (over full voltage
range) provides a more usable signal for higher accuracy.
These products have an operating temperature range of
-40°C to 150°C [-40°F to 302°F], appropriate for industrial
and automotive environments. The SS490B versions
offer cost-effective sensing solutions with wider null and
sensitivity tolerances, and a wider drift over temperature than
the SS490A higher performance products. Both the SS490A
and SS490B versions have a typical sinking or sourcing
output of 1.5 mA continuous, use 7 mA supply current at 5.0 V
at 25°C [77°F], and provide predictable performance over the
full temperature range. For design flexibility, these products
are available in the following flat TO-92 package styles:
SS4XX: Straight standard leads, bulk pack
SS4XX-L: Straight long leads, bulk pack
SS4XX-T2: Formed leads, ammopack tape-in-box
SS4XX-T3: Straight standard leads, ammopack tape-in-box
SS4XX-S: Surface mount, bulk pack
SS4XX-SP: Surface mount, pocket tape and reel
Sensing and Internet of Things
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Datasheet
FEATURES
• Linear output for circuit design flexibility
• Quad-Hall IC design minimizes mechanical stress effects
• Responds to either positive or negative Gauss
• Uses 7 mA at 5 Vdc for energy efficiency
• Single current sinking or current sourcing output
• Rail-to-rail operation provides more usable signal for higher
accuracy
• Temperature-compensated magnetics help provide stable
operation over a wide temperature range of -40°C to 150°C
[-40°F to 302°F]
POTENTIAL APPLICATIONS
Industrial:
• Basic current sensing for motor load monitoring, detection
• Anti-tampering magnetic field sensor in smart remote utility
meters
• Pump control in heavy-duty equipment and household
appliances
• Simple linear or angular displacement sensing
• Handlebar/throttle position sensing in e-bikes and scooters
• Current sensing in appliances
• Speed adjustment trigger in tools and appliances
• Magnetic code reading in safes, security and building
access control systems
Medical: Position sensing in infusion pumps
PORTFOLIO
The SS490 Series and the SS39ET, SS49E, SS59ET Linear
Hall-effect Sensor ICs form Honeywell’s Linear Hall-effect
Sensor IC offering.


Honeywell International Electronic Components Datasheet

SS495A2 Datasheet

Solid State Hall Effect Sensors

No Preview Available !

Linear Hall-effect Sensor ICs:
SS490 Series
Table 1. General Specifications for All Catalog Listings (Vs = 5.00 V with 4.7 k output to minus, TA = -40°C to 125°C [-40°F to 257°F])
Characteristic
Condition
Min.
Typ.
Max.
Unit
Supply current
Output current:
sourcing
sinking
sinking
TA = 25°C [77°F]
Vs > 4.5 V
Vs > 4.5 V
Vs > 5.0 V
— 7.0 8.7 mA
1 1.5
0.6 1.5
mA
1 1.5 —
Response time
Output voltage swing:
VOM-
VOM+
Supply voltage
Operating temperature
Soldering temperature
and time
— —3
-B applied
0.4 0.2
+B applied
Vs - 0.4
Vs - 0.2
TA = -40°C to 125°C [-40°F to 257°F]
-4.5
-40 [40]
5.0
wave soldering process: 250°C to 260°C [482°F to 500°F] for 3 s max.
infrared reflow process: peak temperature 245°C [473°F] for 10 s max.
10.5
150 [302]
µs
V
V
°C [°F]
Table 2. Absolute Maximum Specifications for All Catalog Listings
Characteristic
Symbol
Condition
Min.
Supply voltage
Output voltage
Output current
Vs — -0.5
Vout — -0.5
Iout
sourcing or
sinking
Operating temperature
TA
— -55
Storage temperature
TS
Vs = 0
-55
Typ.
Max.
11
11
10
150
165
Unit
V
V
mA
°C [°F]
°C [°F]
NOTICE
Absolute maximum ratings are the extreme
limits the device will momentarily withstand
without damage to the device. Electrical and
mechanical characteristics are not guaranteed
if the rated voltage and/or currents are
exceeded, nor will the device necessarily
operate at absolute maximum ratings.
NOTICE
The magnetic field strength (Gauss) required
to cause the switch to change state (operate
and release) will be as specified in the
magnetic characteristics. To test the switch
against the specified limits, the switch must
be placed in a uniform magnetic field.
CAUTION
ELECTROSTATIC
SENSITIVE
DEVICES
DO NOT OPEN OR HANDLE
EXCEPT AT A
STATIC FREE WORKSTATION
ESD SENSITIVITY:
CLASS 3
Table 3. Specifications for Catalog Listing SS494B (Vs = 5.00 V with 4.7 k output to minus, TA = -40°C to 125°C [-40°F to 257°F])
Characteristic
Condition
Min.
Typ.
Max.
Unit
B limits for linear -B max.
operation
+B max.
-375
+375
-420
+420
Gauss
Linearity
B = -60 to +60
B = -375 to +375
0
-1.0
-1.5
% of span
Sensitivity
TA = 25°C [77°F]
4.6 5.0 5.4 mV/Gauss
Null TA = 25°C [77°F]
2.26
2.50
2.74
V
Sensitivity drift
TA = -40°C to 25°C [-40°F to 77°F]
TA = 25°C to 150°C [77°F to 302°F]
0
-0.02
+0.08
+0.08
%/°C
Vnull drift
B = 0; TA = -40°C to 125°C [-40°F to 257°F]
B = 0; TA = 125°C to 150°C [257°F to 185°F]
-0.064
-0.02
+0.064
+0.08
%/°C
2 Sensing and Internet of Things


Part Number SS495A2
Description Solid State Hall Effect Sensors
Maker Honeywell
Total Page 8 Pages
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