General
Description
Using
bipolar process, the AS1642 is designed for high performance latch detection hall effect application, such as home appliance, industrial, rotor position sensing, brushless DC motor etc. The hall IC integrated an on-chip hall voltage generator for magnetic
sensing, a comparator that amplifiers the hall voltage,
an open collector output, and a Schmitt trigger to provide switching hysteresis for noise rejection, and a voltage regulator for operation with supply voltage of 3.5V
to 50V.
AS1642 is designed to respond to alternating North and
South poles. White the magnetic flux density (B) is larger than operate point (BOP), the output will be turned on (low), the output is held until the magnetic flux density (B) is lower than release point (BRP), then turn
off (high).
The device is available in SIP-3L Package and is rated over the -40°C to 125°C. the package is RoHS compliant.
Features
● Input Voltage Range : 3.8V to 50V
● Bipolar Latch Operation
● High Performance Bipolar Process Tech.
● Magnetic Sensitivity (typical) B =40Gauss, B =-40Gauss
● Open Collector Output
● Small Solution Size
● RoHS Compliant
● SIP-3L Packages● -40℃ to +125 ℃ Temperature Range
Applications
● Automotive, Home appliances, Industrial
● Electric Tools
● Rotor Position Sensing
● Brushless DC Motor/Fan
● Speed Measurement
● Revolution Counting
● Magnetic Encoder
