ah293 Diodes, Inc., ah293 Datasheet
ah293
Available stocks
Related parts for ah293
ah293 Summary of contents
Page 1
... AH293 Rev. 2 LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR General Description 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. Also, rotor-state detection (RD) output is for speed detection ...
Page 2
... Pin Assignment Vdd GND Pin Descriptions AH293 Rev. 2 LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR DOB 4 Vdd 293 GND SOT25 Symbol Description RD Rotor-State Detection Input Power Output Pin DOB Output Pin GND Ground www.diodes.com AH293 CONTROLLER 1 RD ...
Page 3
... RD (alarm) Notes: R1, R2: typical C1, C2, C3: typical 2.2 F The R, C value need to be fine tuned based on coils design. 1.8V/5.75V DC Brush-Less Fan with RD Output Function AH293 Rev. 2 LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR Lock shutdown and Automatic recovery Control Logic Amp GND ...
Page 4
... The output of IC will be switched after the supply voltage is over 1.8V, but the magnetic characteristics won't be normal until the supply is over 2.0V. Truth Table IN- IN Latch-type RD output is low during rotation and high during stop AH293 Rev. 2 LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR ( T = 25° Symbol Vdd I O (AVE (PEAK) P ...
Page 5
... Magnetic Characteristics Characteristics Operation Point Release Point Hysteresis Operating Characteristics DOB RP ON Brp 0 Magnetic Flux Density in Gauss S Marking side N ( SOT25 ) AH293 Rev. 2 LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR = 25 °C, Vdd = 5V, unless otherwise specified ) ( T A Symbol Min. Bop -- Brp -60 Bhy -- 12 OFF ...
Page 6
... AH293 Rev. 2 LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR 100 166 147 129 110 tio ...
Page 7
... Marking Information (1) SOT25 (2) SOT89-5L AH293 Rev. 2 LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR (Top View RC:AH293 293 www.diodes.com CONTROLLER Y : Year 0~9 M :Month A~L X: Internal code a~z: Lead Free Year: 0 onth: A Internal code a~z : Lead Free 3 © ...
Page 8
... Package Information (1) SOT25 AH293 Rev. 2 LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR (unit:mm ) Sensor Location www.diodes.com AH293 CONTROLLER JANUARY 2007 © Diodes Incorporated ...
Page 9
... Package Information (2) SOT89-5L Sensor Location AH293 Rev. 2 LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR (Continued ) www.diodes.com AH293 CONTROLLER JANUARY 2007 © Diodes Incorporated ...
Page 10
... Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages. Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the President of Diodes Incorporated. AH293 Rev. 2 LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR IMPORTANT NOTICE ...