Catalog
High Temperature High Sensitivity Hall Effect Latch
Key Features
• 2.2V to 20V DC Operation Voltage
• Temperature Compensation
• Wide Operating Voltage Range
• Open Drain Pre-Driver
• 25mA Maximum Sinking Output Current
• Lead Free Package: SIP3 and SC59 (Commonly known as SOT23 in Asia)
• SC59: Available in "Green" Molding Compound (No Br, Sb)
• Lead Free Finish/RoHS Compliant
Description
AI
AH375 is an integrated Hall effect latched sensor designed for electronic commutation of brush-less DC motor applications. The device includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifies the Hall voltage, and a Schmitt trigger to provide switching hysteresis for noise rejection, and open drain output. An internal band-gap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. If a magnetic flux density larger than threshold Bop, DO is turned on (low). The output state is held until a magnetic flux density reversal falls below Brp causing DO to be turned off (high).