Hall-effect Latched Sensor BDH8181 Designed for Electronic Commutation of Brushless DC Motor Applications
The BDH8181 is an integrated Hall-effect latched sensor 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 to provide switching hysteresis for noise rejection and open-collector output.
An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range.
A north pole of sufficient strength will turn the output ON. In the absence of a magnetic field, the output is OFF.
This IC is available in the TO-92S-3 and SOT-23-3 packages.
Features
On-chip Hall Sensor
Wide Operating Voltage Range: 3.5V to 24V
Internal Bandgap Regulator for Temperature Compensation
Maximum Output Sink Current: 25mA
Operating Temperature: -40℃ to 125℃
ESD Rating: 3000V (Human Body Model) 300V (Machine Model)
Application
Brushless DC Motor
Absolute Maximum Ratings
Recommended Operating Conditions (TA=25℃)
Electrical Characteristics
VCC=12V, TA=25℃, unless otherwise specified.
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