TLI4946 Datasheet, PDF (8/17 Pages) Infineon Technologies AG – High Precision Hall Effect Latches for Industrial and Consumer Applications

2
Functional Description
TLI4946
Functional Description
2.1
General
Precise magnetic switching thresholds and high temperature stability are achieved by active compensation circuits
and chopper techniques on chip. Offset voltages generated by temperature-induced stress or overmolding are
canceled so that high accuracy is achieved. The IC has an open collector output stage with 20 mA current sink
capability. A wide operating voltage range from 2.7 V to 18 V with reverse polarity protection down to -18 V makes
the TLI4946xysuitable for a wide range of applications. A magnetic south pole with a field strength above B_op turns
the output on. A magnetic north pole exceeding B_rp turns it off.
2.2
Pin Configuration
Center of
Sensitive Area
2.08 ^{± 0.1}
3
1.35 ^{± 0.1}
0.8 ^{± 0.15}
Figure 1
1
2
1.5 ^{± 0.15}
SC59
12 3
PG-SSO-3-2
Pin Configuration and sensitive area (Top view, figure not to scale)
Datasheet
8
Rev. 1.0, 2009-05-04