Gate Driver Family: DI4A-05W21A

DI4A-05W21A Isolated Gate Driver

DI4A-05W21A has been introduced as a new member of the gate driver family.

The module is a two-channel isolated gate driver designed for MOSFET and IGBT switching applications. It provides 4 A peak gate charge current and 6 A peak gate discharge current, making it suitable for applications where strong gate driving capability is required.

Programmable Dead-Time Support

One of the key features of the DI4A-05W21A is its programmable dead-time capability.

Dead-time is important in complementary switching structures such as half-bridge and full-bridge circuits. By defining a controlled delay between switching transitions, the module helps support safer operation and reduces the risk of shoot-through conditions.

Flexible Output Configuration

The module can be configured for different gate driver structures.

Its two output channels can be used as two low-side drivers or configured for half-bridge driver applications. This flexibility makes the module useful in power electronics development, driver testing and prototype switching circuits.

UCC21520-Based Driver Structure

The DI4A-05W21A uses the UCC21520 isolated gate driver integrated circuit.

This driver structure provides low propagation delay, low pulse width distortion and high common-mode transient immunity. These characteristics are important in switching systems where timing accuracy, noise immunity and isolation performance directly affect system reliability.

Typical Application Areas

DI4A-05W21A can be used in applications that require isolated MOSFET or IGBT gate driving.

Typical application areas include:

· MOSFET and IGBT gate driver tests

· Half-bridge driver circuits

· Full-bridge switching circuits

· Low-side driver applications

· Power electronics development

· Inverter control experiments

· Motor control prototypes

· R&D and laboratory test setups

Conclusion

DI4A-05W21A expands the gate driver family with a two-channel isolated gate driver structure. With 4 A gate charge, 6 A gate discharge, programmable dead-time support and flexible output configuration, it provides a practical driver platform for MOSFET and IGBT switching applications.