Diodes Incorporated AH293
AH293 is a monolithic fan motor controller with Hall sensor’s capability. It contains two complementary open-collector transistors for Motor’s coil driving, automatic lock current shutdown, and recovery protections.FEATURES
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● On Chip Hall Sensor Rotor-Locked Shutdown Automatically Restart Rotor-State Detection (RD) Output Built-in Zener Protection for Output Driver Operating Voltage: 1.8V~5.75 V Output Current: IO( AVE ) = 400 mA Lead Free Finish/RoHS Compliant for Lead Free products (Note 1) Packages: SOT89-5L
GENERAL DESCRIPTION
Also, rotor-state detection (RD) output is for speed detection. Rotor-lock shutdown detection circuit turns off the output driver when the rotor is blocked to avoid coil overheat. Then, the automatic recovery circuit will restart the motor. These protected actions are repeated and periodic during the blocked period. Until the blocking is removed, the motor recovers and runs normally. Ordering Information AH293 - X X X Package Y: SOT89-5L Lead-Free L : Lead Free Packing -7/-13 : Taping Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7. Device Lead-free AH293-Y Package Code Y Packaging (Note 2) SOT89-5L 7” Tape and Reel Quantity Part Number Suffix 2500/Tape & Reel -13 Note: 2.