ATC ATS477 Manual(1)
Contents
1. Symbol Dimensions In Millimeters Dimensions In Inches ymbo Min Nom Max Min Nom Max 0 046 0 050 D 019 022 025 0007 0009 E 1 04REF 0 041REF X 2 90 0 114 Y 2 00 0 079 7 7 Anachip Corp www anachip com tw Rev A5 Apr 15 2004 7172. 15 2004 ATT Single Phase Hall Effect Latch ATS477 HYSTERCSIS CHARACTERISTICS DOB 8 8 gt RP OFF 2 OFF OP B 5 E o o s S o ON OP o RP ON RT Vsat ve A 200 100 0 100 200 200 100 0 100 200 Magnetic Flux Density in Gauss Magnetic Flux Density in Gauss B Operation Characteristics DO A o Vcc o S S 2 Vd sl 9 High Marking side AAAA 4444 Marking side 5 iC Ex s 5 MM PET 2 Low N NI d Vsat SOP 7 SIP4 Be 0 Bo Magnetic flux density m Marking Information Top View Part Number 477 gt Blank normal XXXXX L Lead Free Package en ID Code A Z Nth week 01 52 gt Year 1 2001 2 2002 SSS SSS SSS SSS SSS Anachip Corp www anachip com tw Rev A5 Apr 15 2004 5 7 AChi An kin LE Single Phase Hall Effect Latch m Package Information 1 SIP AL Active Area Depth Package Sensor Location Marking side 0 7mm Package Dimension gt _ 14 25mm t 1 25mm 1 55mm V y 0 4mm I ES 0 38mm 0 03mm 1 mn gt e 35 5 3 65mm onam I 4 0 mm P nas t 0 1mm 38mm ES pue pedis 669mm Me E EE gE EE EE EE ES NS Ng a oy d A ee SR 3 5 e 1 27mm A A 0 2mm Max 0 03mm 1 42mm 0 1mm Rev A5 Apr 15 2004 Anachip Corp www anachip com tw 6 7 a er hin AIL Single Phase Hall Effect Latch ATS477 2 SOP 7L
3. 0 0 ATA OO An lhip B Features On chip Hall sensor Bi direction H type output drivers for single coil Internal bandgap regulator allows temperature compensated operations and a wide operating voltage range High output sinking capability up to 250mA Operating voltage 3 5V 20V Low output switching current noise Build in shunt Zener protection for output driver SOP 7L provide FG output pin Package SIP 4L and SOP 7L B Applications Single coil Brush less DC Fan Single coil Brush less DC Motor B Ordering Information ATSA77X XXX X B General Description ATS477 that integrates Hall sensor with output drivers is designed for electrical commutation of brush less DC motor application The device includes on chip Hall voltage generator for magnetic sensing the error amplifier that amplifies the Hall voltage a comparator that is to provide switching hysteresis for noise rejection the bi direction drivers for sinking and driving large current load and the frequency generator FG that provides a signal proportional to rotation speed Internal bandgap regulator is used to provide temperature compensated bias for internal circuits and allows a wide operating supply voltage range Built in protection circuit and output shunt Zener diodes were applied for protecting output drivers during operating If a magnetic flux density is larger than threshold Bop DO is turned to sink and DOB is turned to dr
4. SOP 7L o OUTPUT DOB REG gt Hall L Sensor CTL Amp D CKT OUTPUT DO Rev A5 Apr 15 2004 Anachip Corp 3 7 www anachip com tw Ae Ch AGIC Single Phase Hall Effect Latch ATS477 B Absolute Maximum Ratings at Ta 25 C Characteristics Symbol Values Unit Supply voltage Voc 20 V Magnetic flux density B Unlimited Continuous 250 Output on current Hold Ic 300 mA Peak Start Up 600 Operating temperature range Ta 20 85 C Storage temperature range Ts 65 150 C Package Power SIP 4L PD 550 mW Dissipation SOP 7L 800 mW Note 1 Note 1 Ground pin must connect to large area copper on PCB as possible B Electrical Characteristics Ta 25 C Vcc 3 5V to 20V Characteristic Symbol Test Conditions Supply Voltage Ve Ss Output Saturation Vce sink Vec 14V Ic 200mA Voltage Vce drive Vec 14V Ic 200mA FG Saturation Voltage Vce Vec 14V Irs 20mA Supply Current Icc Vcc 20V Output Open Switch Time Differential At B Magnetic Characteristics Ta 25 C A grade Characteristic Symbol Min Typ Max Unit Operate Point Gauss Release Point Gauss Hysteresis Gauss B grade Characteristic Symbol Min Typ Max Unit Operate Point Gauss Release Point Gauss Hysteresis Gauss FE LLL E IE WU mr TY Anachip Corp www anachip com tw Rev A5 Apr
5. ive The output state is held until a magnetic flux density reversal falls below Brp causing DO to be turned to drive and DOB turned to sink ATS477 is rated for operation over temperature range from 20 C to 85 C and voltage range from 3 5V to 20V The devices are available in low cost die forms or rugged SIP 4L and power SOP 7L packages Wafer Body Lead Packing Chords igs Blank or P SIP 4L L LeadFree Blank Tube or Bulk Aor B A Z ifnecessary S SOP 7L Blank Normal A Tape amp Reel to specify B Application Circuit FG t coil 3 Vcc GH 4 Single coil brush less DC Fan 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 1 7 Rev A5 Apr 15 2004 CA cha Ait Single Phase Hall Effect Latch ATS477 B Pin Configuration 1 SIP 4L Front View 477 12 3 4 2 SOP 7L Top view 1 S m 7 2 477 ll 6 3 4 I 5 Anachip Corp Rev A5 Apr 15 2004 www anachip com tw 2 7 4 MN mw m E m u E Z SB Analkin Single Phase Hall Effect Latch ATS477 B Block Diagrams 1 SIP 4L 1 OUTPUT DOB REG de Hall Sensor CTL TT CKT OUTPUT DO 2
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ATC ATS477 Manual(1)