ATS137 SINGLE HALL EFFECT SWITCH General Description 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 Package: SIP-3L and SC59-3L (Commonly known as SOT23 in Asia) SIP-3L and SC59-3L: Available in “Green” Molding Compound (No Br, Sb) Lead Free Finish / RoHS Compliant (Note 1) ATS137 is a switched Hall-Effect IC, which is for contactless switching applications. The device includes an on-chip Hall voltage generator for magnetic sensing, an amplifier that amplifies the Hall voltage, a Schmitt trigger to provide switching hysteresis for noise rejection, and an open-collector output. The bandgap regulator allows a wide operating voltage range. ATS137 is rated for operating temperature range from -20°C to 85°C and voltage range from 3.5V to 20V. Applications • • • • • VCD/DVD Loader, CD/DVD ROM Cover Detector Speed Measurement Home Appliances Home Safety Typical Application Circuit 3.5V ~20V RL Vcc ATS137 DO Digital Output GND ATS137 Rev. 10 DS31045 1 of 12 www.diodes.com FEBRUARY 2010 © Diodes Incorporated ATS137 SINGLE HALL EFFECT SWITCH Ordering Information ATS 137 - X X - X - X Package Lead Free P : SIP-3L W : SC59-3L L : Lead Free G : Green Bulk Package Packaging Code (Note 2) Quantity Magnetic Characteristics Packing A : Ammo Box (Note 3) B : Bulk (Note 4) 7 : Tape & Reel 7” Tape and Reel A or B (Note 5) Ammo Box Magnetic Part Number Characteristics (Note 5) Suffix -A A ATS137-PL-A-A P SIP-3L NA Part Number Suffix NA NA Part Number Suffix NA ATS137-PL-A-B P SIP-3L NA NA NA NA 4000/Box -A B ATS137-PL-B-A P SIP-3L 1000 -B NA NA NA NA A ATS137-PL-B-B P SIP-3L 1000 -B NA NA NA NA B ATS137-PG-A-A P SIP-3L NA NA NA NA 4000/Box -A A ATS137-PG-A-B P SIP-3L NA NA NA NA 4000/Box -A B ATS137-PG-B-A P SIP-3L 1000 -B NA NA NA NA A ATS137-PG-B-B P SIP-3L 1000 -B NA NA NA NA B ATS137-WL-7-A W SC59-3L NA NA 3000/Tape & Reel -7 NA NA A ATS137-WG-7-A W SC59-3L NA NA 3000/Tape & Reel -7 NA NA A Device Notes: Quantity Quantity 4000/Box 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html 2. 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. Ammo Box is for SIP-3L Spread Lead. 4. Bulk is for SIP-3L Straight Lead. 5. Please refer the Magnetic Characteristics table, B is available in SIP-3L package only. Pin Assignment (1) SIP-3L (2) SC59-3L ( Top View ) ( Top View ) 3. DO 2. GND 1. Vcc ATS137 Rev. 10 DS31045 2 of 12 www.diodes.com 3. DO GND 2. 1. Vcc FEBRUARY 2010 © Diodes Incorporated ATS137 SINGLE HALL EFFECT SWITCH Pin Descriptions Pin Name Vcc GND DO Pin # 1 2 3 Description Positive Power Supply Ground Digital Output Functional Block Diagrams VCC 1 Regulator Hall Plate 3 DO Amp 2 Absolute Maximum Ratings Symbol VCC VRCC B Vce IC TST TJ(MAX) PD ATS137 Rev. 10 DS31045 GND (TA = 25oC) Characteristics Supply Voltage Reverse VCC Polarity Voltage Magnetic Flux Density Output “OFF” Voltage Output “ON” Current Storage Temperature Maximum Junction Temperature Package Power Dissipation Continuous SIP-3L SC59-3L 3 of 12 www.diodes.com Values Unit 20 -20 Unlimited 30 25 -65~+150 150 550 230 V V V mA °C °C mW mW FEBRUARY 2010 © Diodes Incorporated ATS137 SINGLE HALL EFFECT SWITCH Recommended Operating Conditions Symbol Characteristic VCC TA Supply Voltage Operating Ambient Temperature Electrical Characteristics Symbol Vce(SAT) Icex ICC Characteristic Output Saturation Voltage Output Leakage Current Supply Current tr Output Rise Time tf Output Falling Time Conditions Min Max Unit Operating Operating 3.5 -20 20 85 V °C (TA = + 25°C) Test Conditions VCC = 14V, ICC = 20mA Vce = 14V, VCC = 14V VCC =20V, Output Open VCC = 14V, RL = 820Ω, CL = 20pF VCC = 14V, RL = 820Ω, CL = 20pF Min - Typ. 300 <0.1 5 Max 700 10 10 Unit mV uA mA - 0.3 1.5 us - 0.3 1.5 us Test Circuit 14V DO RL CL RL = 820 Ohm CL = 20 pF Test Circuit ATS137 Rev. 10 DS31045 4 of 12 www.diodes.com FEBRUARY 2010 © Diodes Incorporated ATS137 SINGLE HALL EFFECT SWITCH Magnetic Characteristics (TA = 25oC, Note 7) (1mT = 10 Gauss) A grade Symbol Bops(south pole to brand side) Brps(south pole to brand side) Bhy( Bopx − Brpx ) B grade (for SIP-3L only) Symbol Bops(south pole to brand side) Brps(south pole to brand side) Bhy( Bopx − Brpx ) Notes: Hysteresis Parameter Operation Point Release Point Hysteresis Min 10 Typ. - Max 100 - Unit Gauss Gauss - 80 - Gauss Min 10 Typ. - Max 130 - Unit Gauss Gauss - 80 - Gauss 7. Magnetic characteristics are for design information, which will vary with supply voltage, operating temperature and after soldering. ATS137 Rev. 10 DS31045 Parameter Operation Point Release Point 5 of 12 www.diodes.com FEBRUARY 2010 © Diodes Incorporated ATS137 SINGLE HALL EFFECT SWITCH Application Information Operating principle: ATS137 is a three-pin Hall Effect switch IC which can turn magnetic flux variety to digital output signal. In other words, it is an interface from magnetic system to an electrical one by Hall effect. The illustrations are shown in Fig.1. VO VCC Magnet Bhys Marking Side Turn On Turn Off Vce(SAT) Brp Magnetic Flux (Gauss) B op S Electrical Fig.1 Hall-Effect Switch Output driver is open-collector topology and maximum sink current (Isink) is 25mA. The illustrated circuit is shown as Fig. 2. 3.5 V ~20V VCC RL Vo DO ATS137 Isink Digital Output GND Fig.2 Application Circuit ATS137 Rev. 10 DS31045 6 of 12 www.diodes.com FEBRUARY 2010 © Diodes Incorporated ATS137 SINGLE HALL EFFECT SWITCH Application Information (Continued) Vo will turn on (low) if the S magnetic flux larger than the operation point (Bop), and turns off whenever the magnetic flux is removed and lower than the release point (Brp). The related waveforms are shown in Fig.3. Magnetic Flux (mT) Bop S S Brp Marking Side VO t Marking Side N N ( SC59 ) (SIP3) VCC Vce(SAT) t Fig.3 VO and Magnetic Flux Variety The major applications are for contactless switching and shown as follows: • VCD/DVD loader, CD/DVD ROM: Detect if the tray is opened or closed. • Cover detector (open/close): Cellular phone cover detector, refrigerator door detector, microwave oven door sensor, etc. • Home safety: instead of reed relay to detect the situation of door/window. • Due to contactless and without mechanical contact point, its reliability and life cycle are much longer than reed relay. In addition, its switching speed is much faster than mechanical devices. ATS137 Rev. 10 DS31045 7 of 12 www.diodes.com FEBRUARY 2010 © Diodes Incorporated ATS137 SINGLE HALL EFFECT SWITCH Performance Characteristics (1) SIP-3L TA (°C) PD (mW) TA (°C) PD (mW) 25 550 105 198 P D (mW) 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 6 00 5 00 4 00 3 00 2 00 1 00 0 0 -40 25 50 75 85 100 1 25 15 0 o T A ( C) (2) SC59-3L (commonly known as SOT23 in Asia) TA (°C) 25 50 60 70 80 85 90 100 110 120 125 130 140 150 PD (mW) 230 184 166 147 129 120 110 92 74 55 46 37 18 0 P D (m W ) P o w e r D is s i p a tio n C u rv e 300 200 100 0 -40 0 25 50 75 85 100 12 5 150 o TA ( C) ATS137 Rev. 10 DS31045 8 of 12 www.diodes.com FEBRUARY 2010 © Diodes Incorporated ATS137 SINGLE HALL EFFECT SWITCH Marking Information (1) SIP-3L ( Top View ) Part Number Y : Year : 0~9 WW : Week : 01~52, "52" represents 52 and 53 week X : Internal Code : A~Z : Green a~z : Lead Free 137 Y WW X (2) SC59-3L (Commonly known as SOT23 in Asia) ( Top View ) XX Y W X Part Number ATS137 ATS137 Rev. 10 DS31045 XX : Identification code Y : Year 0~9 W : Week : A~Z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week X : A~Z : Green a~z : Lead Free Package SC59-3L 9 of 12 www.diodes.com Identification Code JA FEBRUARY 2010 © Diodes Incorporated ATS137 SINGLE HALL EFFECT SWITCH Package Information (All Dimensions in mm) (1) Package Type: SIP-3L for Bulk pack 0.51mm NOM 2.00 +/0.10mm 1.15 +/0.10mm BRANDED SURFACE 1 Active Area Depth 2 3 Sensor Location Package Dimension ATS137 Rev. 10 DS31045 10 of 12 www.diodes.com FEBRUARY 2010 © Diodes Incorporated ATS137 SINGLE HALL EFFECT SWITCH Package Information (Continued) (2) Package Type: SIP-3L for Ammo pack (3) SC59-3L (Commonly known as SOT23 in Asia) TOP VIEW 1.50/ 1.70 0.35/0.50 2.70/ 3.00 1.90 2.90/3.10 1.00/ 1.30 0.10/0.20 0.013/0.10 0.95 0.35/0.55 0 O /8 O ATS137 Rev. 10 DS31045 11 of 12 www.diodes.com FEBRUARY 2010 © Diodes Incorporated ATS137 SINGLE HALL EFFECT SWITCH IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). 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