It seems to be Ideal Diode Week at Electronics Weekly (here and here) as Diodes is also promoting one, this time an ideal diode that can cope with ±65V on its input and drops only 20mV when conducting. The automotive-compliant AP74700Q operates down to 3.2V (or 3.9V at start-up) to allow for cold cranking of a vehicle engine. Inside, a ...
Nexperia has put an ideal diode, including its p-channel mosfet, and reverse polarity protection, in a 2.1 x 1.25 x 0.95mm TSSOP6 package. Called NID5100, it is aimed at industrial and consumer applications, and has an automotive-qualified cousin named NID5100-Q100. “NID5100 supports ‘OR-ing’ multiple power supplies while retaining reverse polarity protection and provides fast response time for smooth power transfer,” ...
YouTube presented me with a video* about a reverse polarity protection IC, On Semi’s NCV68261, which can also be an ideal diode and a load controller. And, being partial to a nice ideal diode, I thought I would take a look. It is a neat chip, called NCV68261 and measuring 2 x 2mm. Acting on the high-side, it is designed ...
Diodes has announced an ideal diode controller for reverse discharge protection. Called DZDH0401DW, it is designed to work with a p-channel mosfet in the high-side rail in systems up to 40V. It might better be described as a ‘nearly ideal diode controller’ as it draws some current from the output circuit when no input is connected – 147μA if a ...
Linear Technology has created at three-phase ideal rectifier reference design. Using three of its LT4320 ideal diode bridge controllers and six n-channel mosfets, it is demonstrated on the DC2465 evaluation board. Power dissipation drops from roughly 1.2x the output current to 0.04x the output current if the correct mosfets are chosen, and cuts voltage loss to a few dozen millivolts. “This enables the ...
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