Data Sheet

Magnetoresistive Sensor ICs, Nanopower Series
4
sensing.honeywell.com
NOTICE
Absolute maximum ratings are the extreme limits that the device will withstand without damage to the device.
However, the electrical and mechanical characteristics are not guaranteed as the maximum limits (above
recommended operating conditions) are approached, nor will the device necessarily operate at absolute
maximum ratings.
CAUTION
ELECTROSTATIC
SENSITIVE
DEVICES
DO NOT OPEN OR HANDLE
EXCEPT AT A
STAT IC FREE WORKSTAT ION
ESD SENSITIVITY:
CLASS 2
Table 3. Absolute Maximum Ratings
Characteristic
Condition Min. Typ. Max. Unit
Operating temperature ambient -40 [-40] — 85 [185] °C [°F]
Soldering temperature ambientappliedfor<10s — — 265 [509] °C [°F]
Supply voltage (Vs) — -0.5 — 6 V
Output (load) current — — —
5
mA
Figure 1. Block/Electrical Diagram
NOTICE
Themagneticeldstrength(Gauss)requiredtocausetheswitchto
changestate(operateandrelease)willbeasspeciedinthemagnetic
characteristics.Totesttheswitchagainstthespeciedmagnetic
characteristics,theswitchmustbeplacedinauniformmagneticeld.
Output
Flip
Flop
Clock
Counter
Decoder
AMR
V
S+
Gnd-
Dual
Threshold
Comparator
Out
D
Q
0
V
Table 2. Magnetic Specifications (Vs = 1.65 V to 5.5 V, Ta = -40 °C to 85 °C [-40 °F to 185 °F].)
Characteristic Min. Typ. Max. Unit
SM3 51LT:
operate (positive)
release (positive)
hysteresis
3
2
*
7
5
2
11
—
—
Gauss
SM353LT:
operate (positive)
release (positive)
hysteresis
6
3
*
14
10
4
20
—
—
Gauss
*At 1.65 V and -40 °C, the hysteresis can reach 0.1 Gauss.