MAX16129UAAGA+

The MAX16129UAAGA+ is a load dump/reverse voltage protection circuit in 8 pin µMAX package. It protects power supplies from damaging input-voltage conditions including overvoltage, reverse voltage and high-voltage transient pulses. Using a built-in charge pump, the device controls two external back to back N-channel MOSFETs that turn off and isolates downstream power supplies during damaging input conditions such as an automotive load-dump pulse or a reverse-battery condition. Operation is down to 3V that ensures proper operation during automotive cold-crank conditions. Features a flag output that asserts during fault conditions. For reverse-voltage protection, external back to back MOSFETs out perform the traditional reverse-battery diode, minimizing the voltage drop and power dissipation during normal operation. The device uses fixed overvoltage and undervoltage thresholds, minimizing the external component count.

• Supply voltage range from 3V to 30V
• Increases protection of sensitive electronic components in harsh environments
• Wide input voltage protection range from -36V to +90V
• Fast gate shutoff during fault conditions with complete load isolation
• Thermal shutdown protection, minimal operating voltage drop for reverse voltage protection
• Operates down to +3V, riding out cold-crank conditions
• Internal charge pump circuit enhances external N-channel MOSFET
• Fixed undervoltage/overvoltage thresholds
• Reduced power dissipation compared to discrete solutions
• Operating temperature range from -40°C to 125°C
• Automotive; Avionics; Industrial; Telecom/Server/Networking

Applications

Industrial, Automotive, Avionics, Communications & Networking

Remarques

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party