OH921-T Latch IC with Built-in Pull-up Resistor

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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