Description
ATS177 is an integrated Hall-Effect latch 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-collector output. An internal bandgap regulator provides a temperature compensated supply voltage for internal circuits and allows a wide operating supply range.

FEATUREs
•  Bipolar Hall-Effect latch sensor
•  3.5V to 20V DC operating voltage
• Temperature compensation
• Open-collector pre-driver
•  25mA maximum output sink current
•  Built-in reverse polarity protection
•  Operating temperature: -40°C to +125°C
• SIP-3L package
•  Green Molding Compound (No Br, Sb) (Note 1)

APPLICATIONs
• Brush-less DC Motor
• Brush-less DC Fan
• Revolutioncounting
• Speed measurement