AH375 SINGLE PHASE HALL EFFECT LATCH Description Pin Assignments (Top View) AH375 is an integrated Hall-Effect latched sensor designed for electronic commutation of brush-less DC motor applications. The device includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifies the Hall voltage, and a Schmitt trigger to provide switching hysteresis for noise rejection, and open drain output. An internal band-gap regulator provides a temperature compensated supply voltage for internal circuits and allows a wide operating supply range. 3. OUT 2. GND 1. Vdd SIP-3L (Top View) 3. OUT When the magnetic flux density (B) is larger than operate point (Bop), output is switched on (OUT pin is 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 switched off. GND 2. 1. Vdd SC59 The AH375 is available in SIP-3L and SC59 packages. Applications Features • • • • • • • • • • • • Bipolar Hall-Effect latch sensor 2.2V to 20V DC Operating voltage Temperature compensation Open drain pre-driver 25mA maximum output sink current Operating temperature: -40°C to +125°C SIP-3L and SC59 packages (SC59 is commonly known as SOT23 in Asia) Green Molding Compound (No Br, Sb) (Note 1) Notes: Brush-Less DC Motor Brush-Less DC Fan Revolution Counting Speed Measurement 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. Typical Application Circuit Vdd RL C 1 AH375 3 2 Output GND AH375 Document number: DS31172 Rev. 6 - 2 1 of 9 www.diodes.com July 2010 © Diodes Incorporated AH375 SINGLE PHASE HALL EFFECT LATCH Pin Descriptions Pin Name P/I/O Pin # Vdd GND OUT P P O 1 2 3 Description Positive Power Supply Ground Output Pin Functional Block Diagram Vdd 1 Regulator Hall plate 23 OUT 2 GND Amp Absolute Maximum Ratings (TA = 25°C) Symbol Vdd B VDS Id TS TJ(MAX) Characteristics Supply Voltage Magnetic Flux Density Output OFF Voltage Output “On” Current Storage Temperature Range Maximum Junction Temperature Values 20 Continuous PD Package Power Dissipation SIP-3L SC59 θJC Thermal Resistance SIP-3L SC59 Unit V Unlimited 30 25 -65~+150 150 550 230 227 543 V mA °C °C mW °C/W Recommended Operating Conditions Symbol Vdd TA Notes: Parameter Supply Voltage (Note 2) Operating Ambient Temperature Conditions Operating Operating Min 2.2 -40 Max 20 125 Unit V °C 2. The output of IC will be switched after the supply voltage is over 2.2V, but the magnetic characteristics won't be normal until the supply is over 2.5V. AH375 Document number: DS31172 Rev. 6 - 2 2 of 9 www.diodes.com July 2010 © Diodes Incorporated AH375 SINGLE PHASE HALL EFFECT LATCH Electrical Characteristics (TA = 25 °C, Vdd = 12V) Symbol VDS (SAT) Ioff Idd Characteristic Output Saturation Voltage Output Leakage Current Supply Current Test Conditions Iout = 20mA VDD = 14V Output Open Min Typ. Max Unit - 300 <0.1 2 700 10 4 mV uA mA Magnetic Characteristics (TA = 25 °C, Vdd = 2.5V to 20V, Note 3) Symbol Bops(south pole to brand side) Brps(south pole to brand side) Bhy(|Bopx|-|Brpx|) Notes: Parameter Operation Point Release Point Hysteresis Min 5 -60 - (1mT = 10 Gauss) Max Unit 60 Gauss -5 Gauss Gauss Typ. 30 -30 60 3. Magnetic characteristics may vary with supply voltage, operating temperature and after soldering. Operating Characteristics S S Marking side Marking side N N (SC59) (SIP-3L) (Output Voltage) Output Vdd (off-state) Turn off Bhy Turn on (on-state) V SAT VSAT Brp 0 Bop ( Magnetic Flux Density B) AH375 Document number: DS31172 Rev. 6 - 2 3 of 9 www.diodes.com July 2010 © Diodes Incorporated AH375 SINGLE PHASE HALL EFFECT LATCH Performance Characteristics (1) SIP-3L TA (°C) PD (mW) TA (°C) PD(mW) 25 550 105 198 50 440 110 176 P D (m W ) 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 tio n C u rve 600 500 400 300 200 100 0 00 -4 25 50 75 100 125 150 T A (°C ) (2) SC59 (commonly known as SOT23 in Asia) 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 P D (m W ) P o w e r D is s ip a tio n C u rv e 300 200 100 0 -400 25 50 75 100 125 150 T A (°C ) AH375 Document number: DS31172 Rev. 6 - 2 4 of 9 www.diodes.com July 2010 © Diodes Incorporated AH375 SINGLE PHASE HALL EFFECT LATCH Ordering Information AH375 - X X - X Package P : SIP-3L W : SC59 Device AH375-PL-A AH375-PL-B AH375-PG-A AH375-PG-B AH375-WL-7 AH375-WG-7 Notes: Lead Free Packing L : Lead Free G : Green (Note 4) Bulk Package Packaging Part Code (Note 5, 6) Quantity Number Suffix P SIP-3L NA NA P SIP-3L 1000 -B P SIP-3L NA NA P SIP-3L 1000 -B W SC59 NA NA W SC59 NA NA A : Ammo Box (Note 7) B : Bulk (Note 8) 7 : Tape & Reel 7” Tape and Reel Ammo Box Part Part Quantity Number Quantity Number Suffix Suffix NA NA 4000/Box -A NA NA NA NA NA NA 4000/Box -A NA NA NA NA 3000/Tape & Reel -7 NA NA 3000/Tape & Reel -7 NA NA 4. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. 5. 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. 6. 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. 7. Ammo Box is for SIP-3L Spread Lead. 8. Bulk is for SIP-3L Straight Lead. AH375 Document number: DS31172 Rev. 6 - 2 5 of 9 www.diodes.com July 2010 © Diodes Incorporated AH375 SINGLE PHASE HALL EFFECT LATCH Marking Information (1) SIP-3L (Top View) Y : Year : 0~9 WW : Week : 01~52, "52" represents 52 and 53 week X : Internal Code : A~Z : Green a~z : Lead Free 375 Part Number Y WW X (2) SC59 (Commonly known as SOT23 in Asia) (Top View) XX Y W X Part Number AH375 AH375 Document number: DS31172 Rev. 6 - 2 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 6 of 9 www.diodes.com Identification Code P3 July 2010 © Diodes Incorporated AH375 SINGLE PHASE HALL EFFECT LATCH Package Outline Dimensions (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 AH375 Document number: DS31172 Rev. 6 - 2 7 of 9 www.diodes.com July 2010 © Diodes Incorporated AH375 SINGLE PHASE HALL EFFECT LATCH Package Outline Dimensions (Continued) (2) Package Type: SIP-3L for Ammo pack (3) SC59 (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 AH375 Document number: DS31172 Rev. 6 - 2 8 of 9 www.diodes.com July 2010 © Diodes Incorporated AH375 SINGLE PHASE HALL EFFECT LATCH 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. 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 © 2010, Diodes Incorporated www.diodes.com AH375 Document number: DS31172 Rev. 6 - 2 9 of 9 www.diodes.com July 2010 © Diodes Incorporated