This new flyback transformer series expands Bourns’ portfolio of low-power, high-creepage isolation transformers. This series operates from a typical 12 V supply with an extended input voltage range of 10 to 24 V and features a new coil mechanical design that helps to increase system performance and safety. These features make the Model HVMA03F4A-LP8S Series ideal for use with Silicon Carbide (SiC), IGBT, and Gallium Nitride (GaN) switching elements in automotive, industrial, and energy storage applications.

The Model HVMA03F4A-LP8S Series is constructed with a center-tapped output to generate a ±5 V supply to aid in biasing gate drive turn-on and off circuitry. This new series is AEC-Q200 compliant and uses a basic insulation layer that complies with the IEC 60664-1 standard with a working voltage of up to 800 VDC. It also features an 8 mm creepage and 2 mm clearance with a Hi-Pot isolation voltage of up to 2750 VAC with an extended operating temperature range of -40 to +125 °C.

Available now, the Bourns Model HVMA03F4A-LP8S Series is RoHS* compliant.

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Nexperia

The NXF650x(A/B)-Q100 series can drive low-profile, center-tapped transformers from a 2.25 V to 5.5 V power supply with high output current (1.2 A at 5 V) and high efficiency (up to 90%). To enable small form factor designs, the devices have a 440 kHz (NXF6501 and NXF6505B) or 160 kHz (NXF6505A) 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 (EMI).

The NXF650x(A/B)-Q100 series also includes a comprehensive range of internal protection features such as over-current protection (1.7 A) with hiccup mode, under-voltage lockout, thermal shutdown, and break-before-make circuitry to ensure safe operation. Additionally, these transformer drivers have a soft-start (~5 ms) feature that prevents high inrush currents during power-up with large load capacitors. Lastly, these devices have fail-safe inputs that prevent back-powering of the local power supply and eliminate the need for power sequence management.

These devices are available in compact industry-standard footprints like the 5-pin SOT8098 (TSOT5) and 6-pin SOT8061 (TSOT6) package and safely operate in ambient temperatures ranging between -55 °C and 125 °C.

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The CWP3230A Series is designed with a ferrite powder core, and bifilar and trifilar windings to achieve a higher saturation current and heating current level in a small size. The series has an inductance range of 2.2 – 47 µH and an operating temperature range of -50 to +150 °C. These features are required in a growing variety of space-constrained ADAS applications that must also meet lower power consumption goals such as in Power over Coax (PoC) vehicle camera modules.

The Bourns Model CWP3230A Chip Inductor Series is available now and is RoHS* compliant and halogen free**.

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