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 Finish/RoHS Compliant for Lead Free products (Note 1) Package: SIP-3L, SC59-3L Green Package: SC59-3L • • 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 Ordering Information ATS137 Package P: SIP-3L W: SC59-3L Note: 1. -XX X-X Packing Lead-Free Magnetic Characteristics A or B - 7 : Taping L : Lead Free G : Green (Note3) - B : Bulk (Note 4) - A : Ammo Box (Note 5) RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7. Device Lead-free ATS137-P ATS137-W Tube/Bulk Package Packaging Part Code (Note 2) Quantity Number Suffix P W SIP-3L SC59-3L 1000 NA -B NA 7” Tape and Reel Part Quantity Number Suffix NA 3000/Tape & Reel NA -7 Ammo Box Part Quantity Number Suffix 4000/Box NA -A NA Note: 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. Green is only available for SC59-3L 4. Bulk is for SIP-3 Straight Lead. 5. Ammo Box is for SIP-3 Spread Lead. ATS137 Rev. 4 1 of 10 www.diodes.com FEBRUARY 2007 © Diodes Incorporated ATS137 SINGLE HALL EFFECT SWITCH Typical Circuit 3.5V ~20V RL Vcc ATS137 DO Digital Output Vss Functional Block Diagrams VCC 1 Regulator Hall Plate 3 DO Amp 2 ATS137 Rev. 4 2 of 10 www.diodes.com VSS FEBRUARY 2007 © Diodes Incorporated ATS137 SINGLE HALL EFFECT SWITCH Pin Descriptions 2 137 Top view 137 1 : Vcc 1 3 2 : Vss 3 : DO 1 2 3 SIP-3L SC59-3L Name P/I/O Pin # VCC P 1 Positive Power Supply VSS P 2 Ground DO O 3 Digital Output Absolute Maximum Ratings (TA = 25oC) Characteristics Supply Voltage Reverse VCC Polarity Voltage Magnetic Flux Density Output “OFF” Voltage Output “ON” Current Continuous Operating Temperature Storage Temperature Maximum Junction Temperature SIP-3L Package Power Dissipation SC59-3L ATS137 Rev. 4 Description Symbol Values Unit VCC VRCC B Vce IC TA Ts Tj 20 -20 V V PD 3 of 10 www.diodes.com Unlimited 30 25 -20~+85 -65~+150 150 550 230 V mA °C °C °C mW mW FEBRUARY 2007 © Diodes Incorporated ATS137 SINGLE HALL EFFECT SWITCH Electrical Characteristics Characteristic Supply Voltage Output Saturation Voltage Output Leakage Current Supply Current Symbol VCC Vce(SAT) Icex ICC Output Rise Time tr Output Falling Time tf (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. 3.5 - Typ. 300 <0.1 5 Max. 20 700 10 10 Units V 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 Magnetic Characteristics (TA = 25oC) (1mT = 10 Gauss) A grade Parameter Operation Point Release Point Hysteresis Symbol Bop Brp Bhys Min. 10 - Typ. 80 Max. 100 - Unit Gauss Gauss Gauss Symbol Bop Brp Bhys Min. 10 - Typ. 80 Max. 130 - Unit Gauss Gauss Gauss B grade (for SIP-3L only) Parameter Operation Point Release Point Hysteresis ATS137 Rev. 4 4 of 10 www.diodes.com FEBRUARY 2007 © 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 Turn Off Marking Side Turn On 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 ATS137 Vo DO Isink Digital Output VSS Fig.2 Application Circuit ATS137 Rev. 4 5 of 10 www.diodes.com FEBRUARY 2007 © 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. 4 6 of 10 www.diodes.com FEBRUARY 2007 © Diodes Incorporated ATS137 SINGLE HALL EFFECT SWITCH Performance Characteristics (SIP-3L) 25 550 105 198 TA (°C) PD (mW) TA (°C) PD (mW) P D (m W ) 600 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 t io n C u r v e 500 400 300 200 100 0 0 25 50 75 85 100 125 150 T A (°C ) Performance Characteristics (SC59-3L) 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 Ta (°C) P D (m W ) P o w e r D is s ip a tio n C u r v e 300 200 100 0 0 ATS137 Rev. 4 25 50 75 7 of 10 www.diodes.com 85 100 125 150 T A (°C ) FEBRUARY 2007 © Diodes Incorporated ATS137 SINGLE HALL EFFECT SWITCH Marking Information (1) SC59-3L (Top View) 3 XX Y M X 1 2 XX : JA: ATS137 Y : Year 0~9 M : Month A~L X : Internal code a~z: Lead Free A~Z: Green Part Number Package ATS137 SC59-3L Identification Code JA (2) SIP-3L (Top View) Y : Year 0~9 137 Y WW X WW : Nth Week 01-52 X : Internal code a~z: Lead Free Package Information (unit: mm) (1) Package Type: SIP-3L for Bulk pack 0.51m m NO M 2.00m m 1.15m m BRANDED SURFACE Active Area D epth ATS137 Rev. 4 1 2 3 Sensor Location 8 of 10 www.diodes.com FEBRUARY 2007 © Diodes Incorporated ATS137 SINGLE HALL EFFECT SWITCH Package Information (Continued) Package Dimension (2) Package Type: SIP-3L for Ammo pack ATS137 Rev. 4 9 of 10 www.diodes.com FEBRUARY 2007 © Diodes Incorporated ATS137 SINGLE HALL EFFECT SWITCH Package Information (Continued) (3) Package Type: SC59-3L TOP VIEW 1.50/ 1.70 0.35/0.50 2.70/ 3.00 1.90 2.90/3.10 1.00/ 1.30 0.013/0.10 0.10/0.20 0.95 0.35/0.55 0°/8° Sensor Location 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. ATS137 Rev. 4 10 of 10 www.diodes.com FEBRUARY 2007 © Diodes Incorporated