AH5792-ZG-7

NOT RECOMMENDED FOR NEW DESIGN USE AH9485/AH9486 AH5792 XXXXX SINGLE PHASE HALL EFFECT LATCH SMART FAN MOTOR CONTROLLER Description Pin Assignments The AH5792 is a single chip solution for driving single-coil brush-less DC fans and motors. The AH5792 employs a bidirectional full bridge driver output stage for single coil fan motor applications. The device includes features such as Rotor Lock Protection with rotor lock detection and automatic self-restart to avoid damage to the coil when the rotor is blocked. ( Top View ) The AH5792 also offers an externally controlled Tachometer (Frequency Generator Pin) open-drain output which makes it easier to connect with external interface such as hardware monitoring. The FG is half (1/2) the magnetic change frequency. O2 1 VSS 2 O1 3 5 FG NC 4 Vdd SOT553 ( Top View ) The devices are packaged in SOT553 and SOT89-5L small outline packages for applications such as small motors like vibration motors or ultra thin cooling fans. O2 1 5 FG Vss 2 NC O1 3 74 Vdd SOT89-5L Features Applications • • • Support Single-Phase Full Wave Min Fan Driver Built-in Hall Sensor Input Amplifier Low Voltage Startup (Vdd = 1.8V) • • • • • Lock Detection and Automatic Self-Restart Without External Timing Capacitor, Reduces the Numbers of External Component Required FG Output Low Profile Package: SOT553 and SOT89-5L “Green” Molding Compound Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/ • • • • • • Notes: 3.3V / 5V Min. DC Fans (Eight Pole) Low Voltage / BLDC Motors Micro-Vibration Motors 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