US3881LSE Melexis Inc, US3881LSE Datasheet - Page 4
![IC HALL LATCH NORTH POLE TSOT-3L](/photos/19/49/194942/us3881lse_sml.jpg)
US3881LSE
Manufacturer Part Number
US3881LSE
Description
IC HALL LATCH NORTH POLE TSOT-3L
Manufacturer
Melexis Inc
Type
Digital Latchr
Specifications of US3881LSE
Sensing Range
9mT Trip, -9mT Release
Voltage - Supply
2.2 V ~ 18 V
Current - Supply
5mA
Current - Output (max)
50mA
Output Type
Digital, Open Drain
Operating Temperature
-40°C ~ 150°C
Package / Case
TSOT-23-3, TSOT-3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Other names
US3881LSETR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
US3881LSE-AAA-000-RE
Manufacturer:
MELEXIS/迈来芯
Quantity:
20 000
How Does it Work?
A Hall IC switch is OFF with no magnetic field and ON in the presence of a magnetic field, as seen in Figure
1. The Earth’s field will not operate a Hall IC Switch, but a common refrigerator magnet will provide sufficient
strength to actuate the sensor.
Figure 1, How it Works
Figure 1
S
N
A-01
A-02
No magnetic field = OFF
South magnetic pole = ON
But How Much Do They Cost?
The cost of a Hall IC depends on the application. Automotive Hall ICs may cost $0.35 to $1.50 or more, while
Hall ICs for Industrial and Consumer applications, such as appliances, game machines, industrial manufactur-
ing, instrumentation, telecom and computers, cost $0.20 or less.
Automotive chip costs are higher because of the unique requirements for shorted loads, reverse battery, double
C. Devices
battery voltage, load dump, 100% test at three temperatures and temperature operation up to 200
o
that do not meet the stringent automotive specifications are more than adequate for other environments, such as
in industrial and consumer products. Melexis products are created primarily to meet automotive specifications,
with off-spec parts sold at a lower price. The cost directly reflects how well the part performs versus the sever-
ity of the operating environment.
Section 3 - Applications
3-2