AH175

AH175 HALL EFFECT LATCH FOR HIGH TEMPERATURE Features Bipolar Hall Effect Latch Sensor 3.5V to 20V DC Operation Voltage Open Collector Pre-Driver 25mA Output Sink Current Chip Power Reverse-Connection Protection o o Operating Temperature: -40 C~150 C Lead Free Finish/RoHS Compliant for Lead Free products (Note 1) Lead Free Packages: SIP-3L, SC59-3L Green Package: SC59-3L General Description AH175 is a single-digital-output Hall-effect sensor for high temperature operation. The device includes an on-chip Hall voltage generator for magnetic sensing, an amplifier to amplify Hall voltage, and a comparator to provide switching hysteresis for noise rejection, and an open-collector output pre-driver. An internal band-gap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. While the magnetic flux density (B) is larger than threshold Bop, the OUT pin turns on (low). If B removed toward Brp, the OUT pin is latched “on” state prior to B < Brp. When B < Brp, the OUT pin goes into “off ” state. Applications Rotor Position Sensing Current Switch Encoder RPM Detection Ordering Information AH175 - X X X - X Package P: SIP-3L W: SC59-3L Lead-Free L : Lead Free G : Green (Note 3) Packing - 7 : Taping -B : Bulk (Note 4) -A : Ammo Box (Note 5) Magnetic Characteristics A or B Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive A...