Seiko Instruments (SII) Launches New High-Accuracy Hall Effect Sensor ICs
- High Performance/High Accuracy Featuring Magnetic Operating Point Accuracy +/-
1.5mT, Specifically Developed for Reliable Position/Rotation Detection in Demanding
Automotive Applications -
Seiko Instruments Inc. (SII) released the new S-57A1/K1 series of Hall effect sensor
ICs for automotive applications requiring high performance, reliability, accuracy and
Hall Effect sensor ICs detect magnetic field changes and output a high or low voltage
level depending on the field strength and polarity. By combining the sensors with
magnets, designers can create applications that operate based on detecting
open/close conditions, relative position, rotation and direction.
The SII Hall Effect sensor series includes two basic types of sensor: Unipolar (S-
57A1) -- used to detect open/close conditions like doors, seat belts, CD/DVD players,
and shift levers -- and Bipolar (S-57K1) -- used to detect/measure rotation and
direction like EPS motors, power windows, and windshield wipers.
In addition to high performance and high accuracy, the S-57A1/K1 series features a
wide operating voltage range (VDD = 3.5 to 26.0 V) and operating temperature range
(-40C to 125C), with high-speed operation -- tCYCLE = 16 microseconds (S-57A1)
and 8 microseconds (S-57K1).