NPA Number 001 New Product Announcement AH3761 AH3761 High sensitivity Hall effect latch sensor for BLDC fan and motor commutations Description The AH3761 is a high sensitivity CMOS Halls effect latch sensor for single‐phase brushless DC (BLDC) fans and motor commutation applications. The AH3761 has an integrated band‐gap voltage regulator, Hall‐voltage transducer, amplifier, chopper stabilization, Schmitt trigger and open‐drain output. With wide operating voltage and temperature range, AH3761 is a small versatile Hall‐effect latch devices that turns on with south magnetic field of sufficient strength and turns off with north magnetic field of sufficient strength. It retains the output state when magnetic field is removed magnetic field is removed. The AH3761 is available in SC59 and SIP3 packages. The Diodes advantage The AH3761 is a chopper stabilized, small and versatile Hall-effect latch sensor for cooling fans and motor commutation applications Wide operating voltage 3V to 28V Supports wide range of system voltages 3.3V/5V/12V/24V Chopper stabilized Extremely low switch-point drift Superior temperature stability Insensitive to physical stress High drive capability with built in short-circuit limit Output can sink up to 50mA Easy interface to wide variety of electronic circuits Safe operation against output short-circuit Reverse supply protection Safe operation against reverse power/battery connection Wide operating temperature range -40°C to 125°C Suitable also for industrial and other thermally demanding applications Applications BLDC cooling fan and motor commutations RPM monitor Position sensors www.diodes.com NPA Number 001 New Product Announcement AH3761 AH3761 High sensitivity Hall effect latch sensor for BLDC fan and motor commutations Vdd R 1 AH3761 Output 3 2 GND Electrical characteristics Part Number N b AH3761 Operating V lt Voltage (V) Max output currentt (mA) Typical IC supply currentt (mA) Max Operating Point Bop at 25°C (Gauss) Min Release Point Brp at 25°C (Gauss) Operating Temperatur e (°C) Package 3 to 28 50 4 60 -60 -40 to 125 *SIP3 **SC59 * SIP3 is through-hole pin compatible to TO-92 ** SC59 is pin compatible to landing patterns of SOT23 To find out more information: Product page: Datasheet: http://www.diodes.com/products/catalog/detail.php?item-id=5486 http://www.diodes.com/datasheets/AH3761.pdf www.diodes.com NPA Number 001 New Product Announcement AH3761 AH3761 High sensitivity Hall effect latch sensor for BLDC DC fan and motor commutations Product portfolio Operating Voltage (V) Average Output current (mA) Operating Point Bop (Gauss) Release Point Brp (Gauss) Operating Temperature (°C) Package AH173 3 to 20 25 15/60 5/80 -60/-15 -80/-5 -40 to 125 SC59 SIP3 AH175 3.5 to 20 25 15/60 5/80 -60/-15 -80/-5 -40 to 150 SC59 SIP-3L AH1751 3.5 to 20 50 5/70 -70/-5 -40 to 125 SIP3 AH266 4 to 28 400 10/70 -70/-10 -20 to 85 SIP4 AH276Q 3.5 to 20 400 10/50 5/70 -50/-10 -70/-5 -20 to 85 SIP4 AH342 4.5 to 28 3.4 to 7.4 40/120 -120/-40 -40 to 125 SIP4-L AH373 2.5 to 20 25 5/60 -60/-5 -40 to 125 SC59, SIP3 AH375 2.5 to 20 25 5/60 -60/-5 -40 to 125 SC59, SIP3 ATS177 3.5 to 20 25 5/70 -70/-5 -20 to 85 SIP-3L AH3761 3 to 28 50 5/60 -60/-5 -40 to 125 SC59, SIP3 Part Number Ordering information Quantity Bulk (Note 4) Device Packaging (Note 2) Pack mark Reel size Tape width AH3761-PG-A SIP3 3761 Y WW X NA NA 4000 NA NA AH3761-PG-B SIP3 3761 Y WW X NA NA NA 1000 NA AH3761-WG-7 SC59 P8 Y W X 7” 178mm 8mm NA NA 3000 Ammo box (Note 3) Reel All variants are in packages that are “Green” Molding Compound (No Br, Sb) with Lead Free Finish/RoHS Compliant (Note 1) Notes: 1. 2. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. see EU Directive 2002/95/EC Annex Notes. Please visit our website at http://www.diodes.com/products/lead_free.html 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 Ammo Box is for SIP3 - Spread Lead Bulk is for SIP3 - Straight Lead Coding on part marks Y Year 0~9 WW Week 01-52 W A~Z week 1~26 a~z week 27~53 3. 4. X A~Z: Green www.diodes.com