Smart diode controller can be used with an N-channel MOSFET in reverse polarity protection circuitry
05-01-2016 |
Mouser Electronics
|
Semiconductors
The Texas Instruments LM74610-Q1 smart diode controller is now available
from Mouser stock. The controller can be used with an N-Channel MOSFET in
reverse polarity protection circuitry.
The device is designed to drive an external MOSFET to emulate an ideal diode
rectifier when connected in series with a power source. A unique advantage
of this scheme is that it is not referenced to ground and thus has Zero Iq.
The LM74610-Q1 controller provides a gate drive for an external N-Channel
MOSFET. It also provides a fast response internal comparator to discharge
the MOSFET Gate in the event of reverse polarity. This fast pull-down
feature limits the amount and duration of reverse current flow if opposite
polarity is sensed. The device design meets CISPR25 Class 5 EMI
specifications and automotive ISO7637 transient requirements with a suitable
TVS diode, says the company.
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