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Product description
The OH921 is a Hall-effect latch designed in mixed-signal CMOS technology. It is quite suitable for use in automotive, industrial and consumer applications. Superior high-temperature performance is made possible through dynamic offset cancellation, which reduces the residual offset voltage ordinarily caused by device over-molding, temperature dependencies, and thermal stress. The device integrates a voltage regulator, Hall voltage generator, small-signal amplifier, chopper stabilization, Schmitt trigger, and is directly drivable by the output.
Features
- Wide Operating Voltage Range from 3.5 to 24V
- Symmetrical Switch Points
- Chopper-stabilized Amplifier Stage
- Superior Temperature Stability
- Compact Size
- Built-in Pull-up Resistor
- ESD Rating: 3500V (Human Body Model)
Applications
- Brushless DC Motor Commutation
- Brushless DC Fan
- Solid-state Switch
- Revolution Counting
- Speed Detection
- High Sensitivity and Unconnected Switch
