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ATS137

SINGLE HALL EFFECT SWITCH

ATS137 Rev. 10 1 of 12 FEBRUARY 2010

DS31045

www.diodes.com © Diodes Incorporated

• 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.

• VCD/DVD Loader, CD/DVD ROM

• Cover Detector

• Speed Measurement

• Home Appliances

• Home Safety

Typical Application Circuit

ATS137

3.5V ~20V

Digital Output

GND

Features

General Description

Applications

Summary of content (12 pages)

PAGE 1
ATS137 SINGLE HALL EFFECT SWITCH General Description Features • • • • • • • • • 3.
PAGE 2
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 40
PAGE 3
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.
PAGE 4
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.
PAGE 5
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.
PAGE 6
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.
PAGE 7
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.
PAGE 8
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
PAGE 9
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.
PAGE 10
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.
PAGE 11
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.
PAGE 12
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).