General Description The SDC1576 is an integrated Hall sensor with H-bridged output driver designed for brushless DC motor applications. The IC includes high sensitivity Hall sensor, chopper stabilized amplifier, dynamic offset cancellation, thermal protection and active reverse battery protection. The high sensitivity of Hall-effect sensor is suitable for motors from mini-type CPU coolers to blowers and DC fans. Typical operation current is 300mA and operating voltage range is wide.
Features ■ One-chip Hall sensor ■ Wide operating voltage range: 3.2V~18V ■ Output current: 300mA(Continuous) ■ Output thermal shutdown protection ■ Lock protection and auto-restart ■ Active reverse battery protection
Applications ■ Single Phase BLDC Fans ■ Single Phase BLDC Motors
DESCRIPTION The UTC UH211 is a semiconducting integrated Hall Effect sensor IC. It is just like all the Hall sensitive Hall Effect sensors designed to work in the situations which the accurate track is extremely small and the changes in magnetic flux density-changes are generally too small to be operated. Besides those features shared in all Hall Effect sensors, UH211 can apply to various kinds of applications, such as contact-less switches, motion detectors, gear tooth sensors, proximity detectors, and electric communication of DC brushless motors, etc.
FEATURES * Hall sensor On-Chip * Output Zener Diodes to Clamp the Peak Output voltage * Frequency Generation Output * High Output Sinking Capability (nearly to 400mA) * High Sensitivity Hall Effect sensor IC: ±65G
General Description The MAX9921 provides a single chip solution to interface two 2-wire Hall-effect sensors to a low-voltage microprocessor (µP). This device supplies and monitors the current drawn by two Hall-effect sensors, filters the sensed current level, and outputs the corresponding logic level.
Features ♦ Withstands 60V at BAT Supply and Hall Inputs ♦ 6V to 18V Operating voltage Range ♦ Provides Supply Current and Interfaces to Two 2-Wire Hall sensors ♦ Error Output with Diagnostics of Hall Inputs and BAT voltage ♦ Protects Hall sensors from Overvoltage by Isolating Them from Supply Transients ♦ Hall Inputs Protected from Short to Ground ♦ Ramps Current to Hall sensors at 4mA/µs ♦ Output Enable Input Allows Multiplexing of Outputs from Multiple MAX9921s ♦ Hall Output Filtering ♦ Hall sensor Blanking Following Hall sensor Power-Up or Restart ♦ Low-Power Shutdown, Controlled with OE and DIAG Inputs ♦ Operates with ±2V Ground Shifts Between Hall sensor and MAX9921
Applications Door Modules Window Lifters Seat Movers Electric Sunroofs Powered Lift Gate Controllers Powered Running Boards Seatbelt Buckles
Sub-plate installation, closed loop current type; Crimping terminal input/output; Current limiting resistance and sampling resistance built-in, input and output voltage directly.Detect DC,AC and pulse voltage