AH3761-WG-7 Diodes Incorporated

PART OBSOLETE AH3761 USE AH3774 HIGH SENSITIVITY HALL EFFECT LATCH Description Pin Assignments The AH3761 is an integrated Hall effect latched sensor designed for electronic commutation of brush-less DC motor applications. The ( Top View ) device includes an on-chip Hall voltage generator for magnetic OUT 3. sensing, a comparator that amplifies the Hall voltage, and a Schmitt 2. GND trigger to provide switching hysteresis for noise rejection, and open drain output. An internal bandgap regulator is used to provide 1. Vdd temperature compensated supply voltage for internal circuits and allows a wide operating supply range. SIP-3 (Bulk Pack) If a magnetic flux density larger than threshold Bop, DO is turned on (low). The output state is held until a magnetic flux density reversal ( Top View ) falls below Brp causing DO to be turned off (high). 3. OUT GND 2. 1 . Vdd Features 3V to 28V DC Operation Voltage SC59 Chopper Stabilized Wide Operating Voltage Range Built-in Power Reverse Protection Applications Built-in Voltage Overshoot Protection Output Short Circuit Protection Brushless DC Motor Commutation Open Drain Pre-Driver RPM Detection SIP-3 (Ammo Pack), SIP-3 (Bulk Pack) and SC59 (Commonly Consumer and Industrial Position Sensor known as SOT23 in Asia) Flow Meters Available in Green Molding Compound (No Br, Sb) Totally Lead-Free & Fully RoHS Compliant (Note 1 & 2) Halogen and Antimony Free. Green Device (Note 3) 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 Low-Pass Filter Sample and Hold Dynamic Offset Cancellation AH3761 Pin Descriptions Pin Name P/I/O Pin Description Vdd P 1 Positive Power Supply GND P 2 Ground OUT O 3 Output Pin Functional Block Diagram Vdd Power Switch To All Subcircuits OUT Amp Amp Control Current Limit GND Absolute Maximum Ratings (T = +25C) A Symbol Characteristics Values Unit Supply Voltage 30 V V DD Reverse Battery Voltage -30 V V RDD B Magnetic Flux Density Unlimited Output OFF Voltage 30 V V DS Output On Current (Peak) 100 mA I O(peak) Storage Temperature Range -65 to +150 T C ST Maximum Junction Temperature +150 T C J(MAX) SIP-3 (Ammo Pack), 550 mW SIP-3 (Bulk Pack) P Package Power Dissipation D SC59 230 mW Thermal Resistance Junction to case SIP-3 (Ammo Pack), 227 C/W SIP-3 (Bulk Pack) JC SC59 543 C/W 2 of 10 February 2019 AH3761 Diodes Incorporated www.diodes.com Document number: DS31977 Rev. 3 - 4 OBSOLETE PART DISCONTINUED