NNOOTT RREECCOOMMMMEENNDDEEDD FFOORR NNEEWW DDEESSIIGGNN AH1751 UUSSEE AAHH33777744 HALL EFFECT LATCH Description Pin Assignments AH1751 is a single-digital-output Hall-effect sensor for high ( Top View ) temperature operation. The device includes an on-chip Hall voltage generator for magnetic sensing, an amplifier to amplify Hall voltage, 3. OUT and a comparator to provide switching hysteresis for noise rejection, 2. GND and an open-collector output pre-driver. An internal band-gap 1. VCC regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. SIP3 While the magnetic flux density (B) is larger than threshold Bop, the OUT pin turns on (low). If B removed toward Brp, the OUT pin is ( Top View ) latched “on” state prior to B < Brp. When B < Brp, the OUT pin go into “off ” state. 3. Output GND 2. 1. V CC Features SC59  Bipolar Hall Effect Latch Sensor  3.5V to 20V DC Operation Voltage ( Top View )  Open Collector Pre-Driver  50mA Output Sink Current 3. V  Chip Power Reverse-Connection Protection CC GND 2.  Operating Temperature: -40°C to 125°C 1.Output  SIP3, SC59 and SC59R (Commonly known as SOT23 in Asia): Available in “Green” Molding Compound (No Br, Sb)  Totally Lead-free & Fully RoHS Compliant (Note 1 & 2 SC59R  Halogen and Antimony Free. “Green” Device (Note 3) Applications  Rotor Position Sensing  Current Switch  Encoder  RPM Detection Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3).compliant. 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. AH1751 1 of 8 March 2018 Document number: DS31436 Rev. 4 - 3 www.diodes.com © Diodes Incorporated

NOT RECOMMENDED FOR NEW DESIGN AH1751 USE AH3774 Pin Descriptions Pin Name Description V Input Power CC GND Ground OUT Output Stage Functional Block Diagram V CC 1 REG. 3 OUT AMP 2 GND Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.) Symbol Parameter Rating Unit VCC Supply Voltage 20 V VOUT (off) Output “OFF ” Voltage 20 V IO (sink) Output “ON” Current 100 mA TST Storage Temperature Range -65 to +150 C TJ(MAX) Maximum Junction Temperature +150 C SIP3 550 mW PD Power Dissipation SC59 and SC59R 230 mW AH1751 2 of 8 March 2018 Document number: DS31436 Rev. 4 - 3 www.diodes.com © Diodes Incorporated

NOT RECOMMENDED FOR NEW DESIGN AH1751 USE AH3774 Recommended Operating Conditions Symbol Parameter Conditions Min Max Unit VCC Supply Voltage Operating (Note 4) 3.5 20 V TA Operating Temperature Range Operating -40 +125 C Note: 4. Operating, the output is switching as magnetic field change (S>300G, N<-300G). Electrical Characteristics (@TA = +25°C, unless otherwise specified.) Symbol Parameter Conditions Min Typ Max Unit VOUT (SAT) Output Saturation Voltage VIOC =C 5=0 1m2AV , OUT ”ON” - 200 300 mV ICC Supply Current VCC = 12V, OUT ”OFF” - 3.5 6 mA Magnetic Characteristics (@TA = +25°C, VCC = 4V to 20V, unless otherwise specified. Note 5) A grade (1mT = 10 Gauss) Symbol Parameter Min Typ. Max Unit Bops (south pole to brand side) Operation Point 5 - 70 Gauss Brps (south pole to brand side) Release Point -70 - -5 Gauss Bhy (BopxBrpx ) Hysteresis - 75 - Gauss Notes: 5. Magnetic characteristics are for design information, which will vary with supply voltage, operating temperature and after soldering. Operating Characteristics V OUT ) e V g cc S S ta High Vd l o V Marking t side u p Bhy t u Marking O side ( Low N N V SAT (SC59 and SC59R) (SIP3) Brp 0 Bop (Magnetic Flux Density) AH1751 3 of 8 March 2018 Document number: DS31436 Rev. 4 - 3 www.diodes.com © Diodes Incorporated

NOT RECOMMENDED FOR NEW DESIGN AH1751 USE AH3774 Performance Characteristics (1) SIP3 T (C) 25 50 60 70 80 85 90 95 100 A P (mW) 550 440 396 352 308 286 264 242 220 D T (C) 105 110 115 120 125 130 135 140 150 A P (mW) 198 176 154 132 110 88 66 44 0 D PD (mW) Power Dissipation Curve 600 500 400 300 200 100 0 -400 25 50 75 100 125 150 TA (°C) (2) SC59 and SC59R (Commonly known as SOT23 in Asia) T (C) 25 50 60 70 80 90 100 110 120 125 130 140 150 A P (mW) 230 184 166 147 129 110 92 74 55 46 37 18 0 D PD (mW) Power Dissipation Curve 300 200 100 0 -400 25 50 75 100 125 150 T (°C) A AH1751 4 of 8 March 2018 Document number: DS31436 Rev. 4 - 3 www.diodes.com © Diodes Incorporated

NOT RECOMMENDED FOR NEW DESIGN AH1751 USE AH3774 Ordering Information AH1751 -X X -X Package Green Packing P : SIP-3 G : Green A : Ammo Box (Note 7) W : SC59 B : Bulk (Note 8) R : SC59 7 : Tape & Reel Bulk 7” Tape and Reel Ammo Box Status Package Packaging Quantity Part Quantity Part Part Number Part Number (Note 9) Code (Note 6) Number Quantity Number Suffix Suffix Suffix AH1751-PG-A-A NRND P SIP-3 NA NA NA NA 4000/Box A AH1751-PG-B-A NRND P SIP-3 1000 -B NA NA NA NA AH1751-WG-7-A NRND W SC59 NA NA 3000/Tape & Reel -7 NA NA AH1751-RG-7-A NRND W SC59R NA NA 3000/Tape & Reel -7 NA NA Notes: 6. Pad layout as shown on Diodes Inc. suggested pad layout document, which can be found on our website at http://www.diodes.com/package-outlines.html. 7. Ammo Box is for SIP3 Spread Lead. 8 . Bulk is for SIP-3 Straight Lead. 9: NRND = Not Recommended for New Design Marking Information (1) Package Type: SIP-3 (Ammo Pack), SIP-3 (Bulk Pack) ( Top View ) Y : Year : 0~9 Part Number 1751 WW : Week : 01~52, "52" represents Y WW X 52 and 53 week X : Internal Code : A~Z : Green (2) Package Type: SC59 and SC59R (Commonly known as SOT23 in Asia) ( Top View ) XX : Identification code Y : Year 0~9 W : Week : A~Z : 1~26 week; XX Y W X a~z : 27~52 week; z represents 52 and 53 week X : A~Z : Green Part Number Package Identification Code AH1751 SC59 RK AH1751 SC59R SK AH1751 5 of 8 March 2018 Document number: DS31436 Rev. 4 - 3 www.diodes.com © Diodes Incorporated

NOT RECOMMENDED FOR NEW DESIGN AH1751 USE AH3774 Package Outline Dimensions and Suggested Pad Layout (All dimensions in mm.) Please see http://www.diodes.com/package-outlines.html for the latest version. (1) Package Type: SIP3 for Bulk pack 0.51mm NOM 2.00mm 1.15mm BRANDED SURFACE 1 2 3 Sensor Location Active Area Depth Package Dimension AH1751 6 of 8 March 2018 Document number: DS31436 Rev. 4 - 3 www.diodes.com © Diodes Incorporated

NOT RECOMMENDED FOR NEW DESIGN AH1751 USE AH3774 Package Outline Dimensions and Suggested Pad Layout (All dimensions in mm. Cont.) Please see http://www.diodes.com/package-outlines.html for the latest version. (2) Package Type: SIP3 for Ammo Pack (3) Package Type: SC59 and SC59R (Commonly known as SOT23 in Asia) 0.35/0.50 TOP VIEW 50/70 2.70/ 1.1. 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 0O/8O AH1751 7 of 8 March 2018 Document number: DS31436 Rev. 4 - 3 www.diodes.com © Diodes Incorporated

NOT RECOMMENDED FOR NEW DESIGN AH1751 USE AH3774 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). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described herein 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 Diodes Incorporated website, harmless against all damages. Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the final and determinative format released by Diodes Incorporated. LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright © 2018, Diodes Incorporated www.diodes.com AH1751 8 of 8 March 2018 Document number: DS31436 Rev. 4 - 3 www.diodes.com © Diodes Incorporated

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: D iodes Incorporated: AH1751-PG-A-A AH1751-PG-B-A AH1751-RG-7-A AH1751-WG-7-A