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| ATS177 SINGLE OUTPUT HALL EFFECT LATCH Features * * * * * * * * 3.5V to 20V DC operation voltage Temperature compensation Wide operating voltage range Open-Collector pre-driver 25mA maximum sinking output current. Reverse polarity protection Lead Free Finish/RoHS Compliant for Lead Free products (Note 1) Package: SIP-3L General Description ATS177 is an integrated Hall effect latched sensor 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 open-collector output. 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 larger than threshold Bop, DO is turned on(low). The output state is held until a magnetic flux density reversal falls below Brp causing DO to be turned off (high). Applications * * * * Brush-less DC Motor Brush-less DC Fan Revolution counting Speed measurement Ordering Information ATS177 - X X X - X Package P:SIP-3L Lead L : Lead Free Magnetic Characteristics -B : Bulk (Note 3) A or B -A : Ammo Box (Note 4) Packing Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7. Device Lead-free Package Code P Packaging (Note 2) SIP-3L ATS177-P 2. Tube/Bulk Quantity Part Number Suffix 1000 -B 7" Tape and Reel Quantity Part Number Suffix NA NA Ammo Box Quantity Part Number Suffix 4000/Box -A Note: Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. 3. Bulk is for SIP-3L Straight Lead. 4. Ammo Box is for SIP-3L Spread Lead. ATS177 Rev. 1 1 of 8 www.diodes.com JANUARY 2007 (c) Diodes Incorporated ATS177 SINGLE OUTPUT HALL EFFECT LATCH Typical Circuit +12V D1 R1 2K U1 1 VCC OUTPUT GND 2 ATS177 3 Q1 NPN L1 L2 R2 3K + C1 0.47uF Q2 NPN + C2 0.47uF Brush-less DC Fan Functional Block Diagrams Vcc 1 Regulator Hall plate 3 2 DO Amp 2 Vss ATS177 Rev. 1 2 of 8 www.diodes.com JANUARY 2007 (c) Diodes Incorporated ATS177 SINGLE OUTPUT HALL EFFECT LATCH Pin Descriptions 177 1 2 3 SIP-3L Name Vcc Vss DO P/I/O P P O Pin # 1 2 3 Description Positive power supply Ground Digital output Absolute Maximum Ratings Characteristics ( at TA=25oC ) Supply Voltage Reverse Vcc Polarity Voltage Magnetic Flux Density Output OFF Voltage Output "ON" Current Continuous Operating Temperature Range Storage Temperature Range Maximum Junction Temp. Package Power Dissipation SIP-3L Symbol VCC VRCC B Vce Ic TA Ts Tj PD Values 20 -20 Unlimited 30 25 -20~+85 -65~+150 150 550 Unit V V V mA C C C mW ATS177 Rev. 1 3 of 8 www.diodes.com JANUARY 2007 (c) Diodes Incorporated ATS177 SINGLE OUTPUT HALL EFFECT LATCH Electrical Characteristics Characteristic Supply Voltage Output Saturation Voltage Output Leakage Current Supply Current Output Rise Time Output Falling Time Symbol Vcc Vce(sat) Icex Icc tr tf (TA=+ 25C) Test Conditions -- Vcc=14V, Ic=20mA Vce=14V, Vcc=14V Vcc=20V, Output Open Vcc=14V, RL=820, CL=20pF Vcc=14V, RL=820, CL=20pF Min 3.5 - Typ 300 <0.1 5 0.3 0.3 Max 20 700 10 10 1.5 1.5 Units V mV uA mA us us Test Circuit 14V DO RL RL=820 Ohm CL=20 pF CL Test Circuit ATS177 Rev. 1 4 of 8 www.diodes.com JANUARY 2007 (c) Diodes Incorporated ATS177 SINGLE OUTPUT HALL EFFECT LATCH Magnetic Characteristics (TA=25oC) 1mT=10Gauss) A grade Parameter Operate Point Release Point Hysteresis B grade Parameter Operate Point Release Point Hysteresis *B grade is for SIP-3L package only. Symbol Bop Brp Bhys Min. 5 -70 - Typ. 80 Max. 70 -5 - Unit Gauss Gauss Gauss Symbol Bop Brp Bhys Min. -100 - Typ. 80 Max. 100 - Unit Gauss Gauss Gauss DO Output Voltage in Volts OFF 12 10 8 6 4 OP RP Vsat -200 -100 0 2 ON 100 200 Magnetic Flux Density in Gauss Typical Magnetic Switch Point vs. Temperuture 100 50 0 Bop Brp Bhys Flux Density (B) -50 -20 25 80 o 100 Temperature ( C) ATS177 Rev. 1 5 of 8 www.diodes.com JANUARY 2007 (c) Diodes Incorporated ATS177 SINGLE OUTPUT HALL EFFECT LATCH Performance Characteristics (SIP-3L) Ta (C) Pd (mW) Ta (C) Pd (mW) P d (m W ) 600 500 400 300 200 100 0 0 25 50 75 85 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 P o w e r D is s ip a tio n C u rv e 100 125 150 T a ( C ) Marking Information SIP-3L (Top View) 177 Y WW X Y : Year WW : Nth Week X : Internal code a~z: Lead Free ATS177 Rev. 1 6 of 8 www.diodes.com JANUARY 2007 (c) Diodes Incorporated ATS177 SINGLE OUTPUT HALL EFFECT LATCH Package Information (unit: mm) (1) Package Type: SIP-3L for Bulk Pack 0.51mm NOM 2.10mm 1.55mm BRANDED SURFACE 1 2 3 Active Area Depth Package Dimension Sensor Location ATS177 Rev. 1 7 of 8 www.diodes.com JANUARY 2007 (c) Diodes Incorporated ATS177 SINGLE OUTPUT HALL EFFECT LATCH Package Information (Continued) (2) Package Type: SIP-3L for Ammo Pack-only IMPORTANT NOTICE Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages. LIFE SUPPORT Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the President of Diodes Incorporated. ATS177 Rev. 1 8 of 8 www.diodes.com JANUARY 2007 (c) Diodes Incorporated |
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