MAX4840 Datasheet Overvoltage Protection Controllers

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: 19-3044; Rev 0; 10/03 Overvoltage Protection Controllers with Status.

Datasheet Details

Part number	MAX4840
Manufacturer	Maxim Integrated (now Analog Devices)
File Size	738.82 KB
Description	Overvoltage Protection Controllers
Datasheet	MAX4840_MaximIntegratedProducts.pdf

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.

Key Features

include a 15kV ESD-protected input (when bypassed with a 1µF capacitor) and a shutdown pin (EN) to turn off the device (MAX4838/MAX4840). All devices are offered in a small 6-pin SC70 package and are specified for operation from -40°C to +85°C. o Overvoltage Protection Up to 28V o Preset 7.4V or 5.8V Overvoltage Trip Level o Drive Low-Cost NMOS FET o Internal 50ms Startup Delay o Internal Charge Pump o Undervoltage Lockout o 15kV ESD-Protected Input o Voltage Fault FLAG Indicator o 6-Pin SC70 Pa.

MAX4840 Distributor

More Datasheets from Maxim Integrated (now Analog Devices)

Part Number	Description
MAX4841	Overvoltage Protection Controllers
MAX480	High-Precision / Low-Voltage / Micropower Op Amp
MAX481	Low-Power / Slew-Rate-Limited RS-485/RS-422 Transceivers
MAX481E	RS-485/RS-422 Transceivers
MAX4820	+3.3V/+5V / 8-Channel / Cascadable Relay Drivers
MAX4821	+3.3V/+5V / 8-Channel / Cascadable Relay Drivers
MAX483	Overvoltage Protection Controllers with Status FLAG
MAX4838	Overvoltage Protection Controllers
MAX4839	Overvoltage Protection Controllers
MAX485	15kV ESD-Protected / Slew-Rate-Limited / Low-Power / RS-485/RS-422 Transceivers