General Description

The MAX4838–MAX4841 are overvoltage protection ICs that protect low-voltage systems against voltages of up to 28V. If the input voltage exceeds the overvoltage trip level, the MAX4838–MAX4841 turn off the low-cost external N-channel FET(s) to prevent damage to the protected components. An internal charge pump eliminates the need for external capacitors and drives the FET gate for a simple, robust solution.

Features

♦ Overvoltage Protection Up to 28V

♦ Preset 7.4V or 5.8V Overvoltage Trip Level

♦ Drive Low-Cost NMOS FET

♦ Internal 50ms Startup Delay

♦ Internal Charge Pump

♦ Undervoltage Lockout

♦ 15kV ESD-Protected Input

♦ Voltage Fault FLAG Indicator

♦ 6-Pin SC70 Package

Applications

Cell Phones

Digital Still Cameras

PDAs and Palmtop Devices

MP3 Players