AH292 Datasheet | Diodes Incorporated

Features - - - - - - - - - On Chip Hall Sensor Rotor-Locked Shutdown Automatically Restart Frequency Generator (FG) Output Built-in Zener Protection for Output Driver Operating Voltage: 1.8V~5.75 V Output Current: IO( AVE ) = 400 m A Lead Free Finish/Ro HS pliant for Lead Free products (Note 1) Lead Free Packages: SOT89-5L General Description AH292 is a monolithic fan motor controller with Hall sensor’s capability. It contains two plementary open-collector transistors for motor’s coil driving, automatic lock current shutdown, and recovery protections. In addition a Frequency generator (FG) output is also available 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 - X X X Package Y: SOT89-5L Lead-Free L : Lead Free Packing -B : -7/-13 : Bulk Taping Note: 1. Ro HS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7. Device Lead-free Package Code Y Packaging (Note 2) SOT89-5L AH292-Y Tube/Bulk Part Number Quantity Suffix NA NA 7” Tape and Reel Quantity 2500/Tape & Reel Part Number Suffix -13 Note: 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://.diodes./datasheets/ap02001.pdf. AH292 Rev. 3 1 of 7 .diodes. JANUARY 2007 © Diodes Incorporated LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER Pin Assignment Vdd 1 GND 2 DO 3 SOT89-5L AH292 5 FG 7 4 DOB Pin Descriptions Symbol FG Vdd DO DOB GND Description Frequency Generation Input Power Output Pin Output Pin Ground Block Diagram Vdd 2 Lock shutdown and Automatic recovery Regulator Hall...