CH442TB Datasheet | Cosemitech

FEATURES and FUNCTIONAL DIAGRAM CHA44X/CH44X This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice and Cosemitech assumes no obligation for future manufacture of this product. Contact Cosemitech for the latest status. Preliminary Datasheet 2.1 PACKAGE - AEC-Q100 automotive qualified for CHA44X - Digital Bipolar-Latch Hall Sensor - Multiple Sensitivity Options (BOP / BRP): +15 / -15 Gauss; +30 / -30 Gauss; +45 / -45 Gauss; +120 / 120 Gauss; - Chopper stabilization for stable operate points throughout operating temperature range - On board voltage regulator for 2.5V to 22V range - Resistant to physical stress - Output short-circuit protection - Operation from unregulated supply - Reverse-battery and freewheeling protection - Solid-state reliability - Wide Operating temperature range: -40 to 150 o C - Small package sizes TO-92S, SOT-23 and SOT-89 - Ro HS-pliant material meets directive 2011/65/EU - TO-92S SOT-23-3L SOT-89-3L APPLICATIONS - Speed and RPM sensing - Tachometer, counter pickup - Flow-rate sensing - Brushless dc (direct current) motor mutation - Motor and fan control - Robotics control DESCRIPTION The CHA44X/CH44X Hall-effect sensor is extremely temperature-stable and stress-resistant sensor ICs, especially suited for operation over extended temperature ranges from -40°C to 150°C. Superior high temperature performance is possible through dynamic offset cancellation, which reduces the residual offset voltage normally caused by device over-molding, temperature dependencies, and thermal stress. The device includes a voltage regulator, Hall-voltage generator, small-signal amplifier, chopper stabilization, Schmitt trigger, and a short circuit protected open-drain output to sink up to 25 m A. An on-board regulator permits operation with supply voltages of 2.5 to 22 V. The advantage of operating down to 2.5V is that the device can used in 2.5V applications or with additional...