AH287I-YA

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 - Package: SIP-4L, 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. 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 287 Front View 1 : VCC 2 : DO 3 : DOB 12 3 4 4 : GND Pin Descriptions Name VCC DO DOB GND NC Description Input power Output pin Output pin Ground Not connected SIP-4L VCC 1 GND 2 DO 3 SOT89-5L 287 5 NC 7 DOB 4 Ordering Information AH287 X - X X X Wafer Body Blank or A~Z : if necessary to specify Package P: SIP-4L Y: SOT89-5L Lead L : Lead Free Blank: Normal Packing 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 2 Hall Plate DO Amp. Control Logic 3 DOB 4 GND Typical Application Circuit (SIP4) 24V VCC D2 287 D1 L2 L1 1 2 3 4 GND DOB C1=1uF DO 48V 48V 24V brush-less DC fan Anachip Corp. www.anachip.com.tw 2/7 Rev 0.1 Jan 17, 2005 AH287 High Voltage Hall-Effect Smart Fan Motor Controller Absolute Maximum Ratings Characteristics Supply Voltage Output Current Power Dissipation Operating Temperature Storage Temperature Maximum Junction Temp. Thermal Resistance θjc IO(AVE) PD (Ta = 25°C) Symbol VCC SIP4/SOT89-5 IO(PEAK) SIP4 SOT89-5 Topr Tstg Tj SIP4 SOT89-5 Rating 30 400 700 550 800 -40 ~ 100 -55 ~ 150 150 227 156 Unit V mA mW °C °C °C °C/W °C/W Electrical Characteristics (Ta = 25 °C, VCC =24V, unless otherwise specified) Characteristics Supply Voltage Supply current Output Leakage Current Locked Protection On Locked Protection Off Output saturation voltage Symbol Vcc Icc Ioff Tlrp-on Tlrp-off 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 VOUT( sat ) Rds(on) Vz Output On resistance Output Zener-breakdown Voltage 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 3/7 Rev 0.1 Jan 17, 2005 AH287 High Voltage Hall-Effect Smart Fan Motor Controller Operating Characteristics DOB DO Output Voltage in Volts RP OFF Output Voltage in Volts 24 20 16 12 8 4 OFF 24 20 16 12 8 4 OP ON OP Vsat RP 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 ) Performance Characteristics (SIP4) Ta (°C) Pd (mW) Ta (°C) Pd (mW) Pd (mW ) 600 500 400 300 200 100 0 0 15 30 45 60 75 90 105 100 120 135 150 Ta (。 C) 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 Anachip Corp. www.anachip.com.tw 4/7 Rev 0.1 Jan 17, 2005 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) Ta (°C) 800 105 640 110 576 115 512 120 480 125 448 130 416 135 384 140 352 145 320 150 Pd (mW) P d (m W ) 288 256 224 192 160 128 96 64 32 0 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 ) Part Number 287 X XX X X Blank : normal L : Lead Free Package ID Code Nth week: 01~52 Year: "1" = 2001 "2" = 2002 (2)SOT89-5L 5 4 7 287 Y M X ID code A~Z : Non-Lead Free a~z : Lead Free M : Month: A~L Y : Year: 0-9 1 2 3 Anachip Corp. www.anachip.com.tw 5/7 Rev 0.1 Jan 17, 2005 AH287 High Voltage Hall-Effect Smart Fan Motor Controller Package Information (1)SIP-4L Active Area Depth Marking side Package Sensor Location 1.97mm 1.04mm 0.7mm 1 2 3 4 Package Dimension 5 -7 1.55mm +/-0.1mm 1.03mm +/-0.1 0.30mm +/-0.1mm 3 -5 o o o 14.25mm +/-1.25mm 0.38mm +/-0.03mm o 3.65mm +/-0.1mm 0.46mm +/-0.03mm 0.41mm +/-0.03mm 3.81mm +/-0.03mm 5.22mm +/-0.1mm 4.20mm +/-0.1mm 5 -7 o o 3 -5 o o 287 0.2mm Max. 1.42mm+/-0.1mm 1.27mm +/-0.03mm Anachip Corp. www.anachip.com.tw 6/7 Rev 0.1 Jan 17, 2005 AH287 High Voltage Hall-Effect Smart Fan Motor Controller (2) SOT89-5L A C D F E B 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 - 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 - Anachip Corp. www.anachip.com.tw 7/7 Rev 0.1 Jan 17, 2005