ah284 Diodes, Inc., ah284 Datasheet
ah284
Available stocks
Related parts for ah284
ah284 Summary of contents
Page 1
... AH284 Rev. 5 HALL-EFFECT SMART FAN MOTOR CONTROLLER General Description AH284 is a monolithic fan motor controller with Hall sensor’s capability. It contains two complementary open-drain drivers for motor’s coil driving, automatic lock shutdown and restart function relatively. Rotor-lock shutdown detection circuit turns off the output driver when the rotor is blocked to avoid coil overheat ...
Page 2
... DO Output Pin DOB Output Pin GND Ground NC Not Connected Block Diagram Regulator Hall Plate Amp. AH284 Rev. 5 HALL-EFFECT SMART FAN MOTOR CONTROLLER ( Top View ) Vdd 1 2 GND 3 DO Lock Shutdown and Automatic Recovery Control Logic 4 GND www.diodes.com AH284 ...
Page 3
... Storage Temperature ST T Maximum Junction Temperature J θ (Note 4) Thermal Resistance Junction-to-Case JA θ Note: 4. should be confirmed with what heat sink thermal resistance heat sink contacting, JA AH284 Rev. 5 HALL-EFFECT SMART FAN MOTOR CONTROLLER D2 D1 284 GND C3 DOB DO 12V Brush-Less DC Fan (T = 25° ...
Page 4
... IN+ CT OUT1 Magnetic Characteristics Symbol Characteristics Bop Operation Point Brp Release Point Bhy Hysteresis AH284 Rev. 5 HALL-EFFECT SMART FAN MOTOR CONTROLLER = 25 ° =12V, unless otherwise specified Conditions Operating Operating V = 24V OUT I = 300mA 500mA 300mA ...
Page 5
... Operating Characteristics DOB Brp 0 Bop Magnetic Flux Density in Gauss ( SIP-4L ) AH284 Rev. 5 HALL-EFFECT SMART FAN MOTOR CONTROLLER OFF OFF SAT SAT Magnetic Flux Density in Gauss S S Marking Marking side SOT89- www.diodes.com AH284 DO 12 ...
Page 6
... A 288 P (mW 900 800 700 600 500 400 300 200 100 AH284 Rev. 5 HALL-EFFECT SMART FAN MOTOR CONTROLLER 440 396 352 308 110 115 120 125 176 154 132 110 issipation C urve 25 50 ...
Page 7
... Marking Information (1) SIP-4L Part Number (2) SOT89-5L AH284 Rev. 5 HALL-EFFECT SMART FAN MOTOR CONTROLLER ( Top View ) Internal code a~z : Lead Free 284 Year : WW : Nth week 01~ Internal Code : A~Z ( Top View ) Year : 0 Month: A~L 284 Internal code a~z : Lead Free www ...
Page 8
... Package Information (1) SIP-4L Active Area Depth Marking side 0.7mm Package Dimension AH284 Rev. 5 HALL-EFFECT SMART FAN MOTOR CONTROLLER (All Dimensions in mm) Package Sensor Location 1.95 士 1.1 0.1mm www.diodes.com AH284 士 0.1mm DECEMBER 2007 © Diodes Incorporated ...
Page 9
... 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. AH284 Rev. 5 HALL-EFFECT SMART FAN MOTOR CONTROLLER (Continued) ...