AnaChip AH266 handbook
Contents
1. 5 J vy 1 27mm 0 03mm i 1 42mm 0 1mm Anachip Corp www anachip com tw Rev 0 2 Jan 19 2005 6 62. AHAH 284A DL RA d AnaLlhip High Voltage Hall Effect Latch AH266 E Features On chip Hall plate Operating voltage 4V 28V Output current 400mA Continuous 25 C Reverse protection diode only for chip reverse power connecting gd Output protection Zener breakdown Vz 62V Typ Package SIP 4L 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 H Pin Assignment 4 GND 3 DOB 2 DO 1 VCC WR Ordering Information WR General Description AH266 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 reach release point Brp if B lt Brp DO turn off and DOB turn on AH266 is rated for operation over tempera
3. E 3 y 2 Y Cae ee E ees Vsat Vsat Brp 0 Bop Brp 0 Bop Magnetic Flux Density in Gauss Magnetic Flux Density in Gauss WR Performance Characteristics SIP 4L Ta c 25 50 60 70 80 85 90 95 100 Tac 105 110 115 120 125 130 135 140 150 Dim 198 176 154 132 110 88 66 44 o Power Dissipation Curve 75 8590 105 120 135 150 Anachip Corp www anachip com tw 4 6 Rev 0 2 Jan 19 2005 CAAC AH266 High Voltage Hall Effect Latch E Operation Characteristics A DO Veco Je D High Va gt AAAA Marking side 5 C5 8B gt MM J Low N Vsat lt p SIP4 N Br 0 Bop S Magnetic flux density WR Marking Information Front View Part Number a 266 poop gt Blank normal X XX H x L Lead Free Package Cen gt ID Code A Z eh ee gt Nth week 01 52 eege gt Year 1 2001 2 2002 Anachip Corp www anachip com tw Rev 0 2 Jan 19 2005 5 6 CAAC AH266 High Voltage Hall Effect Latch E Package Information Active Area Depth Package Sensor Location Marking side 1 971mm 0 7mm Package Dimension 14 25mm 1 25mm gt gt 1 55mm Y 0 1mm Mme i 0 38mm A 1 03mm 4 0 1 jeas ES ERR 3 65mm 0 30mm 0 1mm 0 41mm nmn 0 03mm 0 03mm 0 1 ve mm E E cE EE EEEE O QS ES No io 2S GES Nee TE ee E 3
4. te 2 PD 550 mW Thermal Resistance Bjc 227 C W Note 1 lo con is 150 mA at 85 C 2 See Performance Characteristic for other conditions m Electrical Characteristics Ta 25 C Characteristic Symbol Conditions Min Typ Max Unit Supply Voltage Vcc 4 28 V Output Zener Breakdown Vz Output Turn off 54 62 70 V Output Saturation Voltage Vce sat Vcc 24V Ic 400mA 1 1 1 5 V Output Leakage Current Icex Vce 24V Vcc 24V Se lt 0 1 10 HA Supply Current Icc Vec 24V Output Open SS 5 10 mA Output Rise Time tr Vec 24V RL 8200 CL 20pF 1 0 5 Us Output Falling Time tf Vec 24V RL 8200 CL 20pF a 1 0 1 5 Us Switch Time Differential At Vec 24V RL 8200 CL 20pF Sc 3 0 10 US E Test Circuit Vout1 DO Vout2 DOB cL F CL2 gt RL1 RL2 820 Ohm CL1 CL2 20 pF Anachip Corp www anachip com tw Rev 0 2 Jan 19 2005 3 6 d AnaLlhip High Voltage Hall Effect Latch AH266 E Magnetic Characteristics Ta 25 C 1mT 10 Gauss A grade Characteristic Symbol Min Typ Max Unit Operate Point Bop 10 70 Gauss Release Point Brp 70 10 Gauss Hysteresis Bhy 80 Gauss B grade Characteristic Symbol Min Typ Max Unit Operate Point Bop 100 Gauss Release Point Brp 100 Gauss Hysteresis Bhy 80 Gauss DOB S S A A L amp Tumon Turn off ZS Tur off Turn on
5. ture range from 20 C to 85 C and voltage range from 4V to 28V The devices are available in low cost die forms or rugged 4 pin SIP packages WR Pin Configuration e See VCC C oo J ng AH266 X XX X X Package Wafer Body Lead Packing E s Blank or P SIP 4L L Lead Free Blank Tube AorB A Z if necessary Blank Normal A Taping to specify SSS ESET 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 2 Jan 19 2005 1 6 CAAC AH266 High Voltage Hall Effect Latch E Block Diagram VCC DO Plate E Typical Application Circuit 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 0 2 Jan 19 2005 2 6 ch AH266 High Voltage Hall Effect Latch E Absolute Maximum Ratings at Ta 25 C Parameter Symbol Rating Unit Supply voltage VCC 28 V Output OFF voltage Vout off 28 V lo con 400 Note 1 mA Output ON current lo hold 500 mA lo peak 700 mA Magnetic flux density B Unlimited Gauss Operating temperature range Top 20 85 C Storage temperature range Tstg 65 150 C Power dissipation No
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AnaChip AH266 handbook