ATS266 High Voltage Hall Effect Latch Features General Description - On-chip Hall plate - Operating voltage: 4V~28V - Output current: 400mA(Continuous) - Reverse protection diode only for chip reverse power connecting (Note) - Output protection Zener breakdown Vz=56V(Typ) - Package: SIP-4L ATS266 is an integrated Hall sensor with output drivers designed for electronic commutation of brush-less DC motor applications. The device includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifies the Hall voltage, and a Schmitt trigger to provide switching hysteresis for noise rejection, and complementary darlington open-collector drivers for sinking large current loads. An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. If a magnetic flux density (B) is larger than operate point (Bop), DO turn on (low) and DOB turn off (high). The outputs state is latched prior to release point (Brp) coming. if B< Brp, DO turn off and DOB turn on. ATS266 is rated for operation over temperature range from -20oC to 85 oC and voltage range from 4.0V to 28V. The devices are available in low cost die forms or rugged 4 pin SIP packages. (Note) Protection diode only exists at power pin(1,4) output, not including pin (2,3). Application - Dual-coil Brush-less DC Motor - Dual-coil Brush-less DC Fan - Revolution Counting - Speed Measurement Pin Configuration Pin Assignment Name 4. GND 3. DOB VCC 2. DO 1. VCC Description Positive Power Supply DO Output Pin DOB Output Pin GND Ground Ordering Information ATS266 X - X X X - X Wafer Body Package Lead Blank or A~Z : if necessary to specify P: SIP-4L L : Lead Free Blank: Normal Packing Blank : Tube A : Taping Magnetic Characteristics A or B 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. A5 Mar 17, 2003 1/6 ATS266 High Voltage Hall Effect Latch Block Diagram vcc 1 DO REG. Hall Plate Amp DOB Application Circuit 266 1 2 coil1 3 coil2 4 Vcc Brush-less DC Fan Note: This application circuit can’t protect reverse coil current if power is connecting reverse. Anachip Corp. www.anachip.com.tw Rev A5 Mar 17, 2003 2/6 ATS266 High Voltage Hall Effect Latch Absolute Maximum Ratings (at Ta = 250C ) Parameter Supply voltage Output “OFF ” voltage Output “ON” current Magnetic flux density Operating temperature range Storage temperature range Power dissipation (Note) Symbol Rating Unit VCC Vout (off) Io (con) Io (hold) Io (peak) B Top Tstg PD 28 20 400 500 700 Unlimited -20~+85 -65~+150 550 V V mA mA mA Gauss °C °C mW Note: See Performance Characteristic for other conditions Electrical Characteristics ( Ta = 25°C ) Characteristic Symbol Supply Voltage Output Zener Breakdown Output Saturation Voltage Output Leakage Current Supply Current Output Rise Time Output Falling Time Switch Time Differential Vcc Vz Vce(sat) Icex Icc Tr tf ∆t Conditions － Output Turn off Vcc=14V, Ic=400mA Vce=14V, Vcc=14V Vcc=20V, Output Open Vcc=14V, RL=820Ω, CL=20pF Vcc=14V, RL=820Ω, CL=20pF Vcc=14V, RL=820Ω, CL=20pF Min Typ Max Unit 4.0 － － － － － － － － 56 1.0 < 0.1 10 1.0 1.0 3.0 28 － 1.5 10 15 5 1.5 10 V V V µA mA µs µs µs Test Circuit 14V 266 Vout1(DO) RL1 Vout2(DOB) RL2 RL1=RL2=820 Ohm CL1=CL2=20 pF CL1 CL2 Anachip Corp. www.anachip.com.tw Rev A5 Mar 17, 2003 3/6 ATS266 High Voltage Hall Effect Latch Magnetic Characteristics (Ta=+25oC) (1mT=10Gauss) A grade Characteristic Operate Point Release Point Hysteresis B grade Characteristic Operate Point Release Point Hysteresis Symbol Min. Typ. Max. Unit Bop Brp Bhy 10 -70 - 80 70 -10 - Gauss Gauss Gauss Symbol Min. Typ. Max. Unit Bop Brp Bhy -100 - 80 100 - Gauss Gauss Gauss Turn on Bhys DO Output Voltage in Volts Output Voltage in Volts DOB Turn off Turn off Vsat Bop Turn on Vsat Bop 0 Bhys Brp Magnetic Flux Density in Gauss 0 Bop Magnetic Flux Density in Gauss Performance Characteristics (SIP4) Ta (°C) 25 50 60 70 80 85 90 95 100 105 110 115 120 Pd (mW) 550 440 396 352 308 286 264 242 220 198 176 154 132 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 25 50 75 85 100 125 150 T a (。 C ) Anachip Corp. www.anachip.com.tw Rev A5 Mar 17, 2003 4/6 ATS266 High Voltage Hall Effect Latch Operation Characteristics S Marking side N ( Output Voltage ) DO Vcc Vd High Bhy Low Vsat Brp ( SIP4 ) 0 Bop ( Magnetic flux density ) Marking Information ( Top View ) Part Number 266 X XX X X Blank : normal L : Lead Free Package ~ ID Code: Blank or A ~ Z Nth week: 01~52 Year: "1" = 2001 "2" = 2002 Anachip Corp. www.anachip.com.tw Rev A5 Mar 17, 2003 5/6 ATS266 High Voltage Hall Effect Latch Package Information Active Area Depth Package Sensor Location Marking side 1.75mm 1.35mm 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 0.38mm +/-0.03mm 3.81mm +/-0.03mm 0.46mm +/-0.03mm 266 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 A5 Mar 17, 2003 6/6