AH287 High Voltage Hall-Effect Smart Fan Motor Controller Features General Description - 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 - Package: SIP-4L, SOT89-5L 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. To avoid coil burning, rotor-lock shutdown detection circuit shut down the output driver if the rotor is blocked and then the automatic recovery circuit will try to restart the motor. This function repeats while rotor is blocked. Until the blocking is removed, the motor recovers running normally. Pin Assignment Pin Descriptions Name VCC DO DOB GND NC Front View 287 1 : VCC 2 : DO Description Input power Output pin Output pin Ground Not connected 3 : DOB 1 2 3 4 4 : GND SIP-4L VCC 1 GND 2 5 NC 287 DO 3 74 DOB SOT89-5L Ordering Information AH287 X - X X X Wafer Body Blank or A~Z : if necessary to specify Package Lead Packing P: SIP-4L Y: SOT89-5L L : Lead Free Blank: Normal Blank : Tube or Bulk A : Tape & Reel This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. Rev. 0.1 Jan 17, 2005 1/7 AH287 High Voltage Hall-Effect Smart Fan Motor Controller Block Diagram (SIP4) VCC 1 Lock shutdown and Automatic recovery Regulator Hall Plate 2 DO 3 DOB Control Logic Amp. 4 GND Typical Application Circuit (SIP4) 24V VCC D2 L2 287 D1 1 2 3 L1 4 GND DOB C1=1uF 48V DO 48V 24V brush-less DC fan Anachip Corp. www.anachip.com.tw Rev 0.1 Jan 17, 2005 2/7 AH287 High Voltage Hall-Effect Smart Fan Motor Controller Absolute Maximum Ratings (Ta = 25°C) Characteristics Symbol Supply Voltage Output Current Power Dissipation Rating VCC SIP4/SOT89-5 IO(AVE) IO(PEAK) SIP4 SOT89-5 Topr Tstg Tj SIP4 SOT89-5 PD Operating Temperature Storage Temperature Maximum Junction Temp. Thermal Resistance θjc Unit 30 400 700 550 800 -40 ~ 100 -55 ~ 150 150 227 156 V mA mW °C °C °C °C/W °C/W Electrical Characteristics (Ta = 25 °C, VCC =24V, unless otherwise specified) Characteristics Symbol Conditions Min. Typ. Max. Unit Supply Voltage Supply current Output Leakage Current Locked Protection On Locked Protection Off Vcc Icc Ioff Tlrp-on Tlrp-off Operating Operating VOUT=24V VOUT( sat ) Output On resistance Output Zener-breakdown Voltage Rds(on) Vz 2.0 < 0.1 0.46 2.76 450 680 2.25 55 28* 4.0 10 0.6 3.6 700 800 3.5 65 V mA µA Sec Sec Output saturation voltage 3.8 0.4 2.4 42 IO=200mA IO=300mA IO=200mA mV ohm V *Note: Please watch out the current limit issue when the operation voltage is over 26.4V, because of the different efficiency in the coil. Magnetic Characteristics (Ta = 25 °C, VCC = 24V, unless otherwise specified) (1mT=10 Gauss) Characteristics Symbol Min. Typ. Max. Unit Operate Point Release Point Hysteresis Bop Brp Bhy 10 -60 -- 30 -30 60 60 -10 -- Gauss Gauss Gauss Anachip Corp. www.anachip.com.tw Rev 0.1 Jan 17, 2005 3/7 AH287 High Voltage Hall-Effect Smart Fan Motor Controller Operating Characteristics 24 RP DO Output Voltage in Volts Output Voltage in Volts DOB OFF 20 16 12 8 4 ON OP Vsat Brp 0 24 OFF OP 20 16 12 8 4 RP ON Vsat Bop Brp Magnetic Flux Density in Gauss 0 Bop Magnetic Flux Density in Gauss S S Marking side Marking side N N ( SIP4 ) ( SOT89-5 ) Performance Characteristics (SIP4) 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 Power Dissipation Curve Pd (mW ) 600 500 400 300 200 100 0 0 15 30 45 60 75 Anachip Corp. www.anachip.com.tw 90 105 100 120 135 150 Ta (。C) Rev 0.1 Jan 17, 2005 4/7 AH287 High Voltage Hall-Effect Smart Fan Motor Controller Performance Characteristics (SOT89-5) 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 P d (m W ) P o w e r D is s ip a tio n C u r v e 900 800 700 600 500 400 300 200 100 0 0 25 50 75 100 125 150 T a (。 C ) Marking Information (1)SIP-4L ( Top View ) 287 X XX X X Part Number Blank : normal L : Lead Free Package ID Code Nth week: 01~52 Year: "1" = 2001 "2" = 2002 (2)SOT89-5L 4 7 5 ID code A~Z : Non-Lead Free a~z : Lead Free 287 Y M X 1 2 M : Month: A~L Y : Year: 0-9 3 Anachip Corp. www.anachip.com.tw Rev 0.1 Jan 17, 2005 5/7 AH287 High Voltage Hall-Effect Smart Fan Motor Controller Package Information (1)SIP-4L Active Area Depth Package Sensor Location Marking side 1.97mm 1.04mm 1 0.7mm 2 3 4 Package Dimension o 5 -7 o 14.25mm +/-1.25mm 1.55mm +/-0.1mm 1.03mm +/-0.1 o o 3 -5 0.41mm +/-0.03mm 3.81mm +/-0.03mm 0.46mm +/-0.03mm 287 5.22mm +/-0.1mm 4.20mm +/-0.1mm o 0.38mm +/-0.03mm o 3.65mm +/-0.1mm 0.30mm +/-0.1mm 5 -7 o 3 -5 o 0.2mm Max. 1.42mm+/-0.1mm Anachip Corp. www.anachip.com.tw 1.27mm +/-0.03mm Rev 0.1 Jan 17, 2005 6/7 AH287 High Voltage Hall-Effect Smart Fan Motor Controller (2) SOT89-5L A C D F B E K J F L I H G Package Sensor Location Y X Symbol A B C D E F G H I J K L X Y Dimensions In Millimeters Min. Nom. Max. 4.40 4.50 4.60 4.05 4.15 4.25 1.50 1.60 1.70 1.30 1.40 1.50 2.40 2.50 2.60 0.80 3.00 Ref. 1.50 Ref. 0.40 0.46 0.52 1.40 1.50 1.60 0.35 0.39 0.43 5o Typ. 1.90 1.65 - Anachip Corp. www.anachip.com.tw Dimensions In Inches Min. Nom. Max. 0.173 0.177 0.181 0.159 0.163 0.167 0.059 0.063 0.067 0.051 0.055 0.059 0.094 0.098 0.102 0.031 0.118 Ref. 0.059 Ref. 0.016 0.018 0.020 0.055 0.059 0.063 0.014 0.015 0.017 5o Typ. 0.075 0.065 - Rev 0.1 Jan 17, 2005 7/7