AH3761-WG-7

The AH3761-WG-7 is a High Sensitivity Hall Effect Latch designed for electronic commutation of brushless 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 bandgap 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).

• Chopper stabilized
• Wide operating voltage range
• Built-in power reverse protection
• Built-in voltage overshoot protection
• Output short-circuit protection
• Open drain pre-driver