AH286 HALL-EFFECT SMART FAN MOTOR CONTROLLER General Description Features • • • • • • • • On chip Hall sensor Rotor-locked shutdown Automatically restart Rotor-state detection (RD) output Built-in Zener protection for output driver Operating voltage: 3.8V~20 V Output current: IO(AVE) = 500mA for SOT89-5L Lead Free Packages: SIP-5L and SOT89-5L AH286 is a monolithic fan motor controller with Hall sensor’s capability. It contains two complementary open-drain transistors for motor’s coil driving, automatic lock current shutdown, and recovery protections. In addition, rotor-state detection (RD) output is for Rotor-state 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 AH286 - X X X Note: 1. Package Lead-Free Packing P : SIP-5L Y : SOT89-5L L : Lead-Free -B : Bulk -7/-13 : Taping RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7. Device Lead-free AH286-P AH286-Y Package Code P Y Packaging SIP-5 SOT89-5 Quantity 1000 NA Tube/Bulk Part Number Suffix -B NA 7” Tape and Reel Quantity Part Number Suffix NA NA 2500/Tape & Reel -13 Lead-free Note: 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. AH286 Rev. 4 1 of 10 www.diodes.com JANUARY 2007 © Diodes Incorporated AH286 HALL-EFFECT SMART FAN MOTOR CONTROLLER Pin Assignment ( Front View ) 286 Vdd 1 1 : RD 5 RD 2 : Vdd 3 : DO 286 GND 2 4 : DOB 5 : GND DO 3 74 DOB 1 2 3 4 5 SOT89-5L SIP-5L Pin Descriptions Symbol RD Vdd DO DOB GND AH286 Rev. 4 Description Rotor-state detection Input power Output pin Output pin Ground 2 of 10 www.diodes.com JANUARY 2007 © Diodes Incorporated AH286 HALL-EFFECT SMART FAN MOTOR CONTROLLER Block Diagram Vdd 2 Lock Shutdown and Automatic Recovery Regulator Hall Plate 3 DO 4 DOB Control Logic Amp. 5 1 RD GND Typical Application Circuit (SIP-5L) D2 Vdd (12V) R pu 286 D1 Coil 2 1 2 3 4 Coil 1 5 GND RD 48V C1=1uF 48V 12V DC Brush-Less Fan with RD Output Function AH286 Rev. 4 3 of 10 www.diodes.com JANUARY 2007 © Diodes Incorporated AH286 HALL-EFFECT SMART FAN MOTOR CONTROLLER Absolute Maximum Ratings (TA = 25°C) Characteristics Supply Voltage IO(AVE) Output Current Power Dissipation PD Operating Temperature Storage Temperature Maximum Junction Temp. θJA Thermal Resistance Symbol Vdd SIP5/SOT89-5 IO(PEAK) SIP5 SOT89-5 Topr Tstg Tj SIP5 SOT89-5 Rating 24 500 700 550 800 -40 ~ 100 -55 ~ 150 150 227 156 Unit V mA mW °C °C °C °C/W TA TJ Tc θ JA θ JC Note: θ JA should be confirmed with what heat sink thermal resistance. If no heat sink contacting, AH286 Rev. 4 4 of 10 www.diodes.com θ JA is almost the same as θ JC . JANUARY 2007 © Diodes Incorporated AH286 HALL-EFFECT SMART FAN MOTOR CONTROLLER Electrical Characteristics Characteristics (TA = 25 °C, Vdd =12V, unless otherwise specified) Symbol Conditions Min. Typ. Max. Unit Supply Voltage Vdd 3.8 - 20 V Supply current Idd Operating Operating - 2.0 4.0 mA Output Leakage Current Ioff VOUT=24V - < 0.1 10 µA Locked Protection On Tlrp-on 0.4 0.5 0.6 Sec Locked Protection Off Tlrp-off 2.4 3 3.6 Sec IO=300mA - 375 500 IO=500mA - 625 900 Rds(on) IO=300mA - 1.25 1.67 ohm RD output Vds Vol IO=10mA - 0.5 - V Output Zener-breakdown Voltage Vz 35 42 60 V Output saturation voltage VOUT( sat ) Output On resistance Truth Table INH L - IN+ L H - CT L L H Magnetic Characteristics OUT1 H L off OUT2 L H off RD L L H mV Mode Rotating Rotating Lockup protection activated (TA = 25 °C, Vdd = 12V, unless otherwise specified) (1mT=10 Gauss) Characteristics Symbol Min. Typ. Max. Unit Operate Point Bop 10 30 60 Gauss Release Point Brp -60 -30 -10 Gauss Hysteresis Bhy -- 60 -- Gauss AH286 Rev. 4 5 of 10 www.diodes.com JANUARY 2007 © Diodes Incorporated AH286 HALL-EFFECT SMART FAN MOTOR CONTROLLER Operating Characteristics DO 12 RP Output Voltage in Volts Output Voltage in Volts DOB OFF 10 8 6 4 2 ON OP Vsat Brp 0 12 OFF 8 6 4 2 RP ON Vsat Bop Brp Magnetic Flux Density in Gauss 0 Bop Magnetic Flux Density in Gauss S S Marking side AH286 Rev. 4 OP 10 Marking side N N ( SIP5 ) ( SOT89-5 ) 6 of 10 www.diodes.com JANUARY 2007 © Diodes Incorporated AH286 HALL-EFFECT SMART FAN MOTOR CONTROLLER Performance Characteristics (SIP-5L) 25 550 105 198 TA (°C) PD(mW) TA (°C) PD (mW) 50 440 110 176 60 396 115 154 70 352 120 132 80 308 125 110 85 286 130 88 90 264 135 66 95 242 140 44 100 220 150 0 P o w e r D is s ip a tio n C u rve P D (m W ) 600 500 400 300 200 100 0 0 25 50 75 100 125 150 T A (°C ) Performance Characteristics (SOT89-5L) TA (°C) 25 50 60 70 75 80 85 90 95 100 PD (mW) 800 640 576 512 480 448 416 384 352 320 TA (°C) 105 110 115 120 125 130 135 140 145 150 PD (mW) 288 256 224 192 160 128 96 64 32 0 PD (mW) Power Dissipation Curve 900 800 700 600 500 400 300 200 100 0 0 25 50 75 100 125 150 TA(°C) AH286 Rev. 4 7 of 10 www.diodes.com JANUARY 2007 © Diodes Incorporated AH286 HALL-EFFECT SMART FAN MOTOR CONTROLLER Marking Information (1) SIP-5L ( Front View ) Part Number Internal code a~z: Lead Free 286 Y WW X x Y :Year: "1" = 2001 "2" = 2002 WW : Nth week 01~52 X : Internal Code: A ~ Z (2) SOT89-5L 4 7 5 Y : Year: 0-9 M : Month: A~L 286 Y M X 1 AH286 Rev. 4 2 X : Internal code a~z: Lead Free 3 8 of 10 www.diodes.com JANUARY 2007 © Diodes Incorporated AH286 HALL-EFFECT SMART FAN MOTOR CONTROLLER Package Information ( unit: mm ) (1) Package type: SIP-5L Location of Sensing Point 2.006 mm [0.079 inch] ( Top View) 1.016 mm [0.04 inch] 1 AH286 Rev. 4 2 3 4 9 of 10 www.diodes.com 5 JANUARY 2007 © Diodes Incorporated AH286 HALL-EFFECT SMART FAN MOTOR CONTROLLER (2) Package type: SOT89-5L Sensor Location IMPORTANT NOTICE Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages. LIFE SUPPORT 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. AH286 Rev. 4 10 of 10 www.diodes.com JANUARY 2007 © Diodes Incorporated