AH5792 Datasheet | Diodes Incorporated

Description 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. 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. Pin Assignments ( Top View ) O2 1 5 FG VSS 2 O1 3 SOT553 4 Vdd 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. ( Top View ) O2 1 5 FG Vss 2 O1 3 74 Vdd SOT89-5L Features - 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 ponent Required - FG Output - Low Profile Package: SOT553 and SOT89-5L - “Green” Molding pound - Totally Lead-Free & Fully Ro HS pliant (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://.diodes./quality/product-definitions/ Applications - 3.3V / 5V Min. DC Fans (Eight Pole) - Low Voltage / BLDC Motors - Micro-Vibration Motors Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (Ro HS), 2011/65/EU (Ro HS 2) & 2015/863/EU (Ro HS 3) pliant. 2. See https://.diodes./quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and...