AH372 INTERNAL PULL-UP HALL EFFECT LATCH Description Pin Assignments NEW PRODUCT AH372 is a single-digital-output Hall-Effect latch sensor with internal pull-up resistor for high temperature operation. The device includes an on-chip Hall voltage generator for magnetic sensing, an amplifier to amplify Hall voltage, and a comparator to provide switching hysteresis for noise rejection, and an output driver with a pull-up resistor. An internal band-gap regulator provides a temperature compensated supply voltage for internal circuits and allows a wide operating supply range. (Top View) 3. OUT GND 2. 1. VDD SC59 and SOT23 (Front View) When the magnetic flux density (B) perpendicular to the package is larger than operation point (BOP), output is switched on (OUT pin is 3. OUT 2. GND pulled low). The output state is held on until a magnetic flux density reversal falls below BRP. When B is less than BRP, the output is 1. VDD switched off. SIP-3 (Bulk Pack) The AH372 is available in SIP-3 (Ammo Pack), SIP-3 (Bulk Pack), SC59 and SOT23 packages. Applications Features Bipolar Hall Effect Latch Operation 2.2V to 20V Operating Range Single Output with Built-in Pull-up Resistor 25mA output Sink Capability -40°C to +125°C Operating Temperature Industry Standard SIP-3 (Ammo Pack), SIP-3 (Bulk Pack), SC59 and SOT23 Packages Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Notes: Rotor Position Sensing for Motor Commutation Encoder Speed Measurement – RPM Monitor Contact-Less Current Switch 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html 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. Typical Application Circuits IA IB M Digital Hall Effect Sensor IC Driver M: Three Phase Hall Motor Ia Ib Ic & Control Logic HA RPM sensing HB HC Hall Motor Driver 3 Phase Hall Motor AH372 Document number: DS38853 Rev. 1 - 2 1 of 12 www.diodes.com August 2016 © Diodes Incorporated AH372 Typical Application Circuits (cont.) VDD NEW PRODUCT CIN AH372 OUT GND Typical AH372 Circuit Note: 4. CIN is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 100nF typical. Pin Descriptions Packages: SC59, SOT23, SIP-3 (Ammo Pack) and SIP-3 (Bulk Pack) Pin Number Pin Name 1 VDD Power Supply Input Function 2 3 GND OUT Ground Output Functional Block Diagram VDD 1 RPU Regulator 3 OUT 2 2 GND Hall Plate Amp AH372 Document number: DS38853 Rev. 1 - 2 2 of 12 www.diodes.com August 2016 © Diodes Incorporated AH372 Absolute Maximum Ratings (Note 5) @TA = +25°C, unless otherwise specified.) Symbol VDD VOUT (OFF) IO (SINK) NEW PRODUCT B Values Unit Supply Voltage (Note 6) Characteristics 28 V Output ―Off‖ Voltage 28 V Output ―On‖ Current (Sink) 25 mA Magnetic Flux Density PD Package Power Dissipation TSTG Storage Temperature Range 550 230 mW mW -65 to +150 °C +150 °C Maximum Junction Temperature TJ Notes: Unlimited SIP-3 (Ammo Pack) and SIP-3 (Bulk Pack) SC59 and SOT23 5. Stresses greater than the 'Absolute Maximum Ratings' specified above may cause permanent damage to the device. These are stress ratings only; functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be affected by exposure to absolute maximum rating conditions for extended periods of time. 6. The absolute maximum VDD of 28V is a transient stress rating and is not meant as a functional operating condition. It is not recommended to operate the device at the absolute maximum rated conditions for any period of time. Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.) Symbol VDD TA Note: Characteristic Conditions Rating Unit Supply Voltage (Note 7) Operating 2.2 to 20 V Operating Temperature Range Operating -40 to +125 °C 7. The output of IC will be switched after the supply voltage is over 2.2V, but the magnetic characteristics will not be normal until the supply is over 2.5V. Electrical Characteristics (@TA = +25°C, VDD = 12V, unless otherwise specified.) Symbol VOUT Min Typ Max Unit Output On Voltage Characteristic IOUT = 20mA Conditions — 300 400 mV mA IDD Supply Current B < BRP — 2 4 IOFF Output Leakage Current Output off — < 0.1 10 µA RPU Internal Pull-up Resistor — 7 10 13 k AH372 Document number: DS38853 Rev. 1 - 2 3 of 12 www.diodes.com August 2016 © Diodes Incorporated AH372 Magnetic Characteristics (Note 8) (@TA = +25°C, VDD = 2.5V to 20V, unless otherwise specified.) (1mT=10 Gauss) Characteristic Min Typ Max 5 30 60 BOP (South Pole to Part Marking Side for SIP-3 (Ammo Pack), SIP-3 (Bulk Pack) and SOT23; North Pole to Part Marking Side for SC59 ) Operation Point BRP (South Pole to Part Marking Side for SIP-3 (Ammo Pack), SIP-3 (Bulk Pack) and SOT23; North Pole to Part Marking Side for SC59 ) Release Point -60 -30 -5 BHY (|BOPX|-|BRPX|) Hysteresis — 60 — Note: Unit Gauss 8. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering. Output VDD (Off-State) ( Output Voltage ) NEW PRODUCT Symbol BHY Turn off Turn on (On-State) VOUT(SAT) BRP 0 BOP ( Magnetic Flux Density B ) S S S Part Mark Part Mark Part Mark AH372 Document number: DS38853 Rev. 1 - 2 N N SC59 SOT23 N SIP-3 (Ammo Pack) SIP-3 (Bulk Pack) 4 of 12 www.diodes.com August 2016 © Diodes Incorporated AH372 Thermal Performance Characteristics (1) Package Types: SIP-3 (Ammo Pack) and SIP-3 (Bulk Pack) TA (°C) 25 50 60 70 80 85 90 95 100 105 110 115 120 125 130 135 140 150 PD (mW) 550 440 396 352 308 286 264 242 220 198 176 154 132 110 88 66 44 0 PD (mW) Power Dissipation Curve NEW PRODUCT 600 500 400 300 200 100 0 -40 0 25 50 75 100 125 150 TA (°C) (2) Package Types: SC59 and SOT23 TA (°C) 25 50 60 70 80 85 90 100 110 120 130 140 150 PD (mW) 230 184 166 147 129 120 110 92 74 55 37 18 0 PD (mW) Power Dissipation Curve 300 200 100 0 -40 0 25 50 75 100 125 150 TA (°C) AH372 Document number: DS38853 Rev. 1 - 2 5 of 12 www.diodes.com August 2016 © Diodes Incorporated AH372 Ordering Information AH372 - X - X Packing NEW PRODUCT Package P : SIP-3 (Ammo Pack) SIP-3 (Bulk Pack) SA : SOT23 W : SC59 A: Ammo Box (Note 9) B: Bulk (Note 10) 7: Tape & Reel Bulk Part Number Quantity Suffix 7” Tape and Reel Part Number Quantity Suffix Ammo Box Part Number Quantity Suffix Part Number Package Code Packaging (Note 11) AH372-P-A P SIP-3 (Ammo Pack) NA NA NA NA 4000/Box -A AH372-P-B AH372-SA-7 AH372-W-7 P SA W SIP-3 (Bulk Pack) SOT23 SC59 1000 NA NA -B NA NA NA 3000/Tape & Reel 3000/Tape & Reel NA -7 -7 NA NA NA NA NA NA Notes: 9. Ammo Box is for SIP-3 (Ammo Pack) Spread Lead. 10. Bulk is for SIP-3 (Bulk Pack) Straight Lead. 11. Reverse taping as shown on Diodes Inc. Surface Mount (SMD) Packaging document AP02007, which can be found on our website http://www.diodes.com/datasheets/ap02007.pdf. Marking Information (1) Package Types: SC59 and SOT23 ( Top View ) XX Y W X XX : Identification Code Y : Year 0 to 9 W : Week : A to Z : 1 to 26 Week; a to z : 27 to 52 Week; z Represents 52 and 53 Week X : Internal Code Part Number AH372 AH372 (2) Package SC59 SOT23 Identification Code XH YH Package Types: SIP-3 (Ammo Pack) and SIP-3 (Bulk Pack) ( Front View ) Part Number 372 Y WW X AH372 Document number: DS38853 Rev. 1 - 2 Y : Year : 0~9 WW : Week : 01~52, "52" Represents 52 and 53 Week X : Internal Code 6 of 12 www.diodes.com August 2016 © Diodes Incorporated AH372 Package Outline Dimensions Please see http://www.diodes.com/package-outlines.html for the latest version. (1) Package Type: SC59 A SC59 Dim Min Max Typ A 0.35 0.50 0.38 B 1.50 1.70 1.60 C 2.70 3.00 2.80 D 0.95 G 1.90 H 2.90 3.10 3.00 J 0.013 0.10 0.05 K 1.00 1.30 1.10 L 0.35 0.55 0.40 M 0.10 0.20 0.15 N 0.70 0.80 0.75 0° 8° All Dimensions in mm NEW PRODUCT B C G H K J M N L D 0.10/0.20 CL 0.7/0.9 PART MARKING SURFACE 0.595/0.715 Min/Max (in mm) Die Hall Sensor Pin1 1.4/1.6 Sensor Location AH372 Document number: DS38853 Rev. 1 - 2 7 of 12 www.diodes.com August 2016 © Diodes Incorporated AH372 Package Outline Dimensions (cont.) Please see http://www.diodes.com/package-outlines.html for the latest version. (2) Package Type: SOT23 All 7° H J K a M A L C L1 B D F G 0.17/0.37 Min/Max (in mm) PART MARKING SURFACE 0.5/0.6 NEW PRODUCT K1 SOT23 Dim Min Max Typ A 0.37 0.51 0.40 B 1.20 1.40 1.30 C 2.30 2.50 2.40 D 0.89 1.03 0.915 F 0.45 0.60 0.535 G 1.78 2.05 1.83 H 2.80 3.00 2.90 J 0.013 0.10 0.05 K 0.890 1.00 0.975 K1 0.903 1.10 1.025 L 0.45 0.61 0.55 L1 0.25 0.55 0.40 M 0.085 0.150 0.110 a 0° 8° -All Dimensions in mm GAUGE PLANE 0.25 Die Hall Sensor Pin1 1.4/1.5 Sensor Location AH372 Document number: DS38853 Rev. 1 - 2 8 of 12 www.diodes.com August 2016 © Diodes Incorporated AH372 Package Outline Dimensions (cont.) Please see http://www.diodes.com/package-outlines.html for the latest version. Package Type: SIP-3 (Bulk Pack) NEW PRODUCT (3) SIP-3 (Bulk Pack) Dim Min Max A 3.9 4.3 a1 a2 a3 45 a4 B 2.8 3.2 C 1.40 1.60 D 0.33 0.432 E 0.40 0.508 F 0 0.2 G 1.24 1.30 H 2.51 2.57 J 0.35 0.43 L 14.0 15.0 N 0.63 0.84 P 1.55 All Dimensions in mm L a1 J a2 B P N D C a3 A E Note: a4 G H F 12. SIP-3 (Bulk Pack) - Thickness J includes Burrs Min/Max (in mm) 0.51mm Typ 1.90/2.10 1.60/1.80 PART MARKING SURFACE 1 2 3 Sensor Location AH372 Document number: DS38853 Rev. 1 - 2 9 of 12 www.diodes.com August 2016 © Diodes Incorporated AH372 Package Outline Dimensions (cont.) Please see http://www.diodes.com/package-outlines.html for the latest version. Package Type: SIP-3 (Ammo Pack) NEW PRODUCT (4) N D EF SIP-3 (Ammo Pack) Dim Min Max A 3.9 4.3 a1 a2 B 2.8 3.2 C 1.40 1.60 D 0.35 0.41 E 0.43 0.48 F 0 0.2 G 2.4 2.9 N 0.63 0.84 P 1.55 All Dimensions in mm C A G a1 a2 B P Min/Max (in mm) 0.51mm Typ 1.90/2.10 1.60/1.80 PART MARKING SURFACE 1 2 3 Sensor Location AH372 Document number: DS38853 Rev. 1 - 2 10 of 12 www.diodes.com August 2016 © Diodes Incorporated AH372 Suggested Pad Layout Please see http://www.diodes.com/package-outlines.html for the latest version. (1) Package Type: SC59 Y Z NEW PRODUCT C X (2) Dimensions Value (in mm) Z 3.4 X 0.8 Y 1.0 C 2.4 E 1.35 E Package Type: SOT23 Y C Y1 X Dimensions Value (in mm) C 2.0 X 0.8 X1 1.35 Y 0.9 Y1 2.9 X1 AH372 Document number: DS38853 Rev. 1 - 2 11 of 12 www.diodes.com August 2016 © Diodes Incorporated AH372 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). NEW PRODUCT 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. 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