Nexperia recently announced the addition of two new Ideal Diode ICs to its growing portfolio of power devices, the NID5100-Q100 and the NID5100. The NID5100-Q100 is already certified for automotive applications, while the NID5100 is more suitable for traditional industrial and consumer electronics.
These ideal diodes use advanced metal-oxide-semiconductor field-effect transistor (MOSFET) technology, which provides a significantly lower voltage drop at forward conduction compared to conventional diodes. This feature makes ideal diodes the preferred alternative to standard diodes in applications where power efficiency is critical.
Both the NID5100 and NID5100-Q100 ideal diodes are available in a small TSSP6/SOT363-2 pin plastic package measuring just 2.1 mm× 1.25 mm, × 0.95 mm. With its superior electrical properties, NID5100 bring significant benefits to a wide range of applications, including smart meters, fire and safety sensors, battery-powered wearables, and automotive telematics systems.
The NID5100-Q100 Ideal Diode offers some significant advantages over other automotive-grade diodes that make it even better in automotive applications:
Automotive-Grade Qualification: The NID5100-Q100 has been qualified to the AEC-Q100 standard (Grade 1) by the Automotive Electronics Council (AEC), which indicates that it meets the stringent quality and reliability requirements of the automotive industry.
Low Forward Voltage Drop: The NID5100-Q100 has a lower forward voltage drop compared to conventional Schottky diodes, with a typical forward regulation voltage (VREG) of 31mV, which is a significant advantage in applications where power efficiency is critical.
Low Leakage Current: The NID5100-Q100 exhibits extremely low leakage current when reverse biased, which helps improve the efficiency and reliability of the system.
Reverse Polarity Protection: The NID5100-Q100 has built-in reverse polarity protection, which prevents damage to components connected to the output pins in the event of a reversal of the supply voltage.
System flexibility: The ideal diode supports a variety of power "OR" configurations, including a combination of two or more NID5100-Q100 devices, a combination with a legacy Schottky diode, and a combination with an external PMOS.
Temperature Range: The NID5100-Q100 operates in an ambient temperature range of -40°C to +125°C, which allows it to operate reliably in the extreme temperature conditions common in automobiles.
Small Package: The NID5100-Q100 is available in a standard TSSOP6 (SOT363-2) package measuring 2.1 mm x 1.25 mm x 0.95 mm, which takes up a smaller PCB area than conventional low-current diodes.
Figure: Nexperia unveils new diode ICs (Source: Nexperia)
NID5100 is an ideal diode based on PMOS technology, and the gate voltage of the internal MOSFET limits the voltage difference between the anode and cathode to a very low level, which is about eight to one-tenth of the forward voltage drop of comparable rated Schottky diodes. In addition to the ultra-low forward voltage drop, the ideal MOSFET-based diode has a very low reverse DC leakage current, which can be reduced by up to 100 times compared to conventional Schottky diodes.
Compared to other ideal diodes on the market, NID5100 is able to connect multiple power supplies in an "OR" configuration while providing reverse polarity protection. It also has an extremely fast response time, ensuring smooth power switching. Nexperia's ideal diode also offers a number of additional benefits, such as a typical forward voltage drop of 31 millivolts, the ability to handle forward currents up to 1.5 amps, and the ability to automatically switch between parallel power supplies.
The NID5100 operates from 1.2 volts to 5.5 volts and consumes very low currents, with a shutdown current of only 170 nA and a quiescent current of 240 nA at a 3.3 volt input voltage. In addition, the diode features reverse voltage protection with an absolute maximum reverse voltage rating of -6 volts and an output status indication (ST). These features make NID5100 a reliable and efficient choice for power management applications.
