General Description
The MAX6397/MAX6398 are small, high-voltage overvoltage protection circuits. These devices disconnect the output load or limit the output voltage during an input overvoltage condition. These devices are ideal for applications that must survive high-voltage transients such as those found in automotive and industrial applications.

FEATUREs
♦ 5.5V to 72V Wide Supply Voltage Range
♦ Overvoltage Protection Controllers Allow User to Size External n-Channel MOSFETs
♦ Internal Charge-Pump Circuit Ensures MOSFET Gate-to-Source Enhancement for Low RDS(ON) Performance
♦ Disconnect or Limit Output from Input During Overvoltage Conditions
♦ Adjustable Overvoltage Threshold
♦ Thermal-Shutdown Protection
♦ Always-On, Low-Current (37µA) Linear Regulator Sources Up to 100mA (MAX6397)
♦ Fully Specified from -40°C to +125°C (TJ)
♦ Small, Thermally Enhanced 3mm x 3mm TDFN Package

APPLICATIONs
Automotive
Industrial
FireWire®
Notebook Computers
Wall Cube Power Devices