N4340TE220

Overview

The IXYS N4340TE220 is a dual low-side MOSFET gate driver manufactured by IXYS, now part of Littelfuse. It is designed to drive external power switches in high-frequency applications. The device features two independent channels capable of sourcing and sinking peak currents to ensure fast switching transitions. It operates with a wide supply voltage range and includes protection features such as under-voltage lockout. The component is housed in an SOIC-8 package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• Dual-channel architecture providing independent control for two external MOSFETs
• High peak output current capability for rapid gate charging and discharging
• Integrated under-voltage lockout (UVLO) to prevent improper operation during power-up or brown-out conditions
• CMOS and TTL logic input compatibility for direct interfacing with microcontrollers

Applications

• Switching power supplies and DC/DC converters
• Motor control systems requiring precise gate drive signals
• Inverter circuits for AC motor drives

Procurement Notes

Verify the exact suffix configuration against the manufacturer's current datasheet, as suffixes often denote specific tape-and-reel packaging quantities or temperature grades. Confirm RoHS compliance status and lead-free certification directly with the supplier or manufacturer documentation before procurement. Check for any recent product change notices that may affect pinout or electrical specifications.

Selection Notes

Select this component when a dual low-side driver with moderate peak current is required for cost-sensitive designs. Ensure the external MOSFETs selected have gate charge characteristics compatible with the driver's output current capability. Verify that the operating voltage range of the application falls within the specified limits of the driver IC. Consider thermal management requirements based on the expected switching frequency and load conditions.

Part Context

This part belongs to the IXYS IX43xx series of dual low-side MOSFET drivers. This family is characterized by its ability to provide symmetrical rise and fall times, which minimizes cross-conduction losses in half-bridge configurations. The series is widely used in industrial and consumer power electronics where reliable switching performance is critical.

Replacement Considerations

Direct replacements include the IX4340N and IX4340G from IXYS/Littelfuse. Other compatible alternatives may include devices from manufacturers like STMicroelectronics or ON Semiconductor offering similar dual low-side driver specifications in an SOIC-8 package. Always verify pin-to-pin compatibility and electrical parameter equivalence.