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

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Notes

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