GENERAL DESCRIPTION
MA177R is an integrated Hall effect latched sensor designed for electronic commutation
of brush-less DC motor applications. The device is using HV BCD process 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 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, OUT is turned on(low). The output
state is held until a magnetic flux density reversal falls below Brp causing OUT to be turned
off (high).

 FEATURES
- 3.3V to 26V DC Operation Voltage
- Temperature Compensation
- Wide Operating Voltage Range
- Open-Drain Pre-Driver
- 25mA Maximum Sinking Output Current.
- -40°C to 125°C Operating Temperature
- Low Profile SOT23-3L Package ( Green and Lead Free )