APL3228 Datasheet | ANPEC

Features - Wide supply voltage range from 3.8V to 28V - Low ON resistance: 50mΩ(typ) at a supply voltage of 5V - Flexible overvoltage-protection trip level -Wide adjustable OVLO threshold range from 4V to 20V -Preset internal accurate OVLO threshold: 6.8V - Low quiescent current 70µA - Internal 8ms startup debounce - Protection circuitry: -Surge Immunity to 100V -Overvoltage lockout - Low Capacitance ESD Protection - Available in TDFN3x3-10 Packages - Lead Free Green Devices Available (Ro HS pliant) General Description The APL3228 overvoltage protection devices feature a low 50mΩ(typ) RON internal FET and protect low-voltage systems against voltage faults up to +28VDC. An internal clamp also protects the devices from surges up to +100V. When the input voltage exceeds the overvoltage threshold, the internal FET is turned off to prevent damage to the protected downstream ponents. The overvoltage protection threshold can be adjusted with optional external resistors to any voltage between 4V and 20V. With the OVLO input set below the external OVLO select voltage, the APL3228 automatically choose the accurate internal trip thresholds. The internal overvoltage thresholds (OVLO) are preset to 6.8V. The devices feature an open-drain ACOK output indicating a stable supply between minimum supply voltage and VOVLO. The APL3228 are also protected against over current events by an internal thermal shutdown. Pin Configuration Applications - Smart Phones - Tablet PCs - Mobile Internet Devices Simplified Application Circuit ACOK 1 EN 2 OUT 3 OUT 4 GND 5 EP (GND) TDFN3x3-10 (Top View) 10 OVLO 9 IN 8 IN 7 IN 6 GND POWER ADAPTER 1µF R1 R2 1µF OVLO APL3228 VI/O ACOK ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing...