OH921 High Sensitivity Hall Latch IC
Built-in Pull-up Resistor
General Description
Part No: OH921
Temperature Range: -40 to 125°C
Package:1000 Pcs/Bag
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 normally causedby 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
Absolute Maximum Ratings （TA=25℃）
Supply VoltageVCC··············3.5-28V
Operating Temperature Range TA ·····-50～150℃
Output Current IO···················25mA
Storage Temperature RangeTS ··········-65～150℃