General Description
The MAX4919B/MAX4920B/MAX4921B overvoltage protection controllers protect low-voltage systems against high-voltage faults up to +28V.
FEATUREs
♦ Input Overvoltage Protection Up to +28V
♦ Preset Overvoltage Protection Trip Level
6.38V (MAX4919B)
5.80V (MAX4920B)
4.65V (MAX4921B)
♦ Adapter/Car-Kit Auto-Selector
♦ Low-Current Undervoltage Lockout Mode
♦ Internal 1.8A (min) Battery Switchover FET
♦ Integrated Low-Battery Detect
♦ Battery Short-Circuit Protection
♦ Low-Cost External nMOS Overvoltage FET
♦ 14-Pin TDFN Package (3mm x 3mm)
APPLICATIONs
Cell Phones
Digital Still Cameras
PDAs and Palmtop Devices
MP3 Players