AH287

AH287 HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER Features • • • • • • • • On chip Hall sensor Rotor-locked shutdown Automatically restart Built-in Zener protection for output driver Operating voltage: 3.8V~28V Output current: IO(AVE) = 400mA Lead Free Finish/RoHS Compliant for Lead Free products (Note 1) Lead Free Packages: SIP-4L and SOT89-5L General Description AH287 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. 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 AH287 - X X X Package P: SIP-4L Y: SOT89-5L Note: 1. Lead-Free L : Lead Free Packing -B : -13 : Bulk Taping RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7. Device Lead-free AH287-P AH287-Y Package Code P Y Packaging (Note 2) SIP-4L SOT89-5L 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. AH287 Rev. 4 1 of 10 www.diodes.com JANUARY 2007 © Diodes Incorporated AH287 HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER Pin Assignment Front View 1 : Vdd 2 : DO 3 : DOB 4 : GND 12 3 4 Pin Descriptions 287 Name Vdd DO DOB GND NC Description Input power Output pin Output pin Ground Not connected SIP-4L Vdd 1 GND 2 DO 3 SOT89-5L 287 5 NC 7 DOB 4 Block Diagram Vdd 1 (SIP-4L) Lock shutdown and Automatic recovery Regulator 2 Hall Plate DO Amp. Control Logic 3 DOB 4 GND AH287 Rev. 4 2 of 10 www.diodes.com JANUARY 2007 © Diodes Incorporated AH287 HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER Typical Application Circuit (SIP-4L) 24V D2 287 D1 1 2 3 4 L2 L1 GND DOB D3 C1 DO 48V 48V 24V brush-less DC fan Note: 3. The optional Capacitor C1 and Diode D3 are for power stabilization. C1 is recommended to be E-Cap., luF/25V; D3 is recommended to be Zener Diode, VZ =27V. Which C1and D3 value need to be fine tuned to optimize design for different coils and power suppliers. Absolute Maximum Ratings Characteristics Supply Voltage Output Current Power Dissipation Operating Temperature Storage Temperature Maximum Junction Temp. Thermal Resistance (TA = 25°C) IO(AVE) PD θ JA Symbol Vdd SIP-4L/SOT89-5L IO(PEAK) SIP-4L SOT89-5L Topr Tstg Tj SIP-4L SOT89-5L Rating 30 400 700 550 800 -40 ~ 100 -55 ~ 150 150 227 156 Unit V mA mW °C °C °C °C/W °C/W TA TJ Tc θ JA θ JC Note: 4. θ JA should be confirmed with what heat sink thermal resistance. If no heat sink contacting, θ JA is almost the same as θ JC . AH287 Rev. 4 3 of 10 www.diodes.com JANUARY 2007 © Diodes Incorporated AH287 HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER Electrical Characteristics Characteristics Supply Voltage Supply current Output Leakage Current Locked Protection On Locked Protection Off Output saturation voltage Output On resistance Output Zener-breakdown Voltage (TA = 25 °C, Vdd =24V, unless otherwise specified) Symbol Vdd Icc Ioff Tlrp-on Tlrp-off VOUT( sat ) Conditions Operating Operating VOUT=24V Min. 3.8 0.4 2.4 42 Typ. 2.0 < 0.1 0.46 2.76 450 680 2.25 55 Max. 28 * 4.0 10 0.6 3.6 700 800 3.5 65 Unit V mA µA Sec Sec mV ohm V Rds(on) Vz IO=200mA IO=300mA IO=200mA *Note: Please watch out the current limit issue when the operation voltage is over 26.4V, because of the different efficiency in the coil. Truth Table INH L - IN+ L H - CT L L H OUT1 H L off OUT2 L H off Mode Rotating Rotating Lockup protection activated Magnetic Characteristics (TA = 25 °C, Vdd = 24V, unless otherwise specified) (1mT=10 Gauss) Characteristics Operate Point Release Point Hysteresis Symbol Bop Brp Bhy Min. 10 -60 -Typ. 30 -30 60 Max. 60 -10 -Unit Gauss Gauss Gauss AH287 Rev. 4 4 of 10 www.diodes.com JANUARY 2007 © Diodes Incorporated AH287 HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER Operating Characteristics DOB DO Output Voltage in Volts RP 24 20 16 12 8 Output Voltage in Volts OFF OFF 24 20 16 12 8 OP ON 4 OP Vsat RP 4 ON Vsat Brp 0 Bop Brp 0 Bop Magnetic Flux Density in Gauss Magnetic Flux Density in Gauss S Marking side S Marking side N ( SIP4 ) N ( SOT89-5 ) AH287 Rev. 4 5 of 10 www.diodes.com JANUARY 2007 © Diodes Incorporated AH287 HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER Performance Characteristics TA (°C) PD (mW) TA (°C) PD (mW) P D (mW ) 600 500 400 300 200 100 0 0 15 30 45 (SIP-4L) 25 550 105 198 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 Power Dissipation Curve 60 75 90 105 100 120 135 150 T A (。 C) Performance Characteristics TA (°C) PD (mW) TA (°C) PD (mW) P D (m W ) 900 800 700 600 500 400 300 200 100 0 0 25 (SOT89-5L) 25 800 105 288 50 640 110 256 60 576 115 224 70 512 120 192 75 480 125 160 80 448 130 128 85 416 135 96 90 384 140 64 95 352 145 32 100 320 150 0 P o w e r D is s ip a tio n C u rve 50 75 100 125 150 T A (。 C ) AH287 Rev. 4 6 of 10 www.diodes.com JANUARY 2007 © Diodes Incorporated AH287 HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER Marking Information (1) SIP-4L ( Front View ) Part Number 287 Y WW X x L : Lead Free Package Y :Year: "1" = 2001 "2" = 2002 WW : Nth week 01~52 X : Internal Code: A~Z (2) SOT89-5L 5 4 7 Y : Year: 0-9 M : Month: A~L 287 Y M X X : Internal code a~z : Lead Free 1 2 3 AH287 Rev. 4 7 of 10 www.diodes.com JANUARY 2007 © Diodes Incorporated AH287 HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER Package Information (1) SIP-4L (unit: mm) Active Area Depth Marking side Package Sensor Location 1.97mm 1.04mm 0.7mm 1 2 3 4 Package Dimension AH287 Rev. 4 8 of 10 www.diodes.com JANUARY 2007 © Diodes Incorporated AH287 HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER Package Information (2) SOT89-5L (Continued) Sensor Location AH287 Rev. 4 9 of 10 www.diodes.com JANUARY 2007 © Diodes Incorporated AH287 HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER 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. AH287 Rev. 4 10 of 10 www.diodes.com JANUARY 2007 © Diodes Incorporated