Nexperia’s transformer drivers improve efficiency and performance in industrial and automotive applications

Nexperia introduced the NXF6501-Q100, NXF6505A-Q100, and NXF6505B-Q100. These are AEC-Q100 qualified, push-pull transformer drivers that enable the design of small, low-noise and low-EMI isolated power supplies for a range of automotive applications like traction inverters and motor control, DC-DC converters, battery management systems and on-board chargers in electric vehicles (EV). These transformer drivers are also suitable for use in industrial applications like telecommunications, medical applications, instrumentation and industrial automation equipment, solar inverters, energy meters, and programmable logic controllers (PLC).

The NXF650x(A/B)-Q100 series can drive low-profile, center-tapped transformers from a 2.25V to 5.5V power supply with high output current (1.2A at 5V) and high efficiency (up to 90%). To enable small form factor designs, the devices have a 440kHz or 160kHz internal oscillator and a gate drive circuit that produces complementary output signals to drive internal ground-referenced n-channel power switches. Alternatively, a clock signal can be applied externally to the NXF6505A and NXF6505B to enable precise control of switching harmonics or enable synchronization of multiple NFX6505x(A/B) -Q100 devices. Additionally, the NXF650x(A/B)-Q100 series employs slew rate control and spread-spectrum clocking (SSC) to deliver ultra-low noise and electromagnetic interference (more info).