AH277AZ4-CG1 Diode by Diodes Inc. | 300V 1A Rectifier, TO-94 Package

AH277AZ4-CG1 by Diodes Inc. | 300V, 1A Rectifier, TO-94 Package

The AH277AZ4-CG1 is an integrated Hall-effect sensor with driver output, designed primarily for electronic commutation of brushless DC motors. It combines a Hall sensor, signal processing, and output driver in a single TO-94 package, simplifying motor control designs.

Key Features

• Type: Integrated Hall Sensor with Complementary Output Drivers

• Voltage Rating: 300V

• Current Rating: 1A

• Package: TO-94 (SIP-4L)

• Hall Sensor: On-chip, temperature compensated

• Output: Two complementary open-collector drivers for sinking large load current

• Amplifier & Schmitt Trigger: Provides noise rejection and switching hysteresis

• Temperature Compensation: Adjusts Hall sensitivity across temperature range

• Internal Band-Gap Regulator: Provides stable bias voltage for internal circuits

• Magnetic Switching:

  • BOP (Operate Point): Pin DO goes low, DOB goes high when magnetic flux density exceeds threshold

  • BRP (Release Point): Pin DO goes high, DOB goes low when magnetic flux density falls below threshold

Applications

• Brushless DC motor electronic commutation

• Speed or position sensing in motors

• Motor driver systems requiring integrated Hall sensing and load driving

Mechanical & Delivery Information

• Package Type: TO-94 (SIP-4L)

• Delivery Time: Consult distributor/manufacturer