Datasheet Analog Devices MAX16126TCB/V+ — 数据表

Click here to ask an associate for production status of specific part numbers. MAX16126/MAX16127 Load-Dump/Reverse-Voltage Protection
Circuits
General Description The MAX16126/MAX16127 load-dump/reverse-voltage
protection circuits protect power supplies from damaging
input voltage conditions, including overvoltage, reversevoltage, and high-voltage transient pulses. Using a
built-in charge pump, the devices control two external
back-to-back n-channel MOSFETs that turn off and
isolate downstream power supplies during damaging
input conditions, such as an automotive load-dump pulse
or a reverse-battery condition. Operation is guaranteed
down to 3V to ensure proper operation during automotive
cold-crank conditions. These devices feature a flag output
(FLAG) that asserts during fault conditions.
For reverse-voltage protection, external back-to-back
MOSFETs outperform the traditional reverse-battery
diode, minimizing the voltage drop and power dissipation
during normal operation.
The MAX16126/MAX16127 use external resistors to
adjust the overvoltage and undervoltage comparator
thresholds for maximum flexibility.
The MAX16127 provides limiter-mode fault management
for overvoltage and thermal shutdown conditions; whereas
the MAX16126 provides switch-mode fault management …