MAX16129UAAGA+

甩负荷/反向电压保护, AEC-Q100, 3V至30V, µMAX-8

The from Products 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