Diodes Incorporated High Frequency 100V Rated Gate Driver Improves Power Efficiency

Diodes Incorporated high-frequency 100V rated gate drivers improve power efficiency while saving board space

[February 24, 2022, Plano, Texas, USA] Diodes Incorporated (Diodes) has introduced the DGD0579U high-side and low-side gate driver. This high-frequency device has a built-in bootstrap diode and can drive two N-channel MOSFETs commonly used to control motors and DC-DC power transmission in a half-bridge configuration. It can target high-power product applications such as cordless power tools, e-bikes, and autonomous robotic equipment, which can improve efficiency and reduce size to meet the growing market requirements.

The DGD0579U's 100V floating high-side driver allows for greater flexibility in demanding high-power product applications. Shorter propagation delays (typically 60ns) and delay matching (within 10ns) increase switching speeds and reduce dead time, creating smaller, more efficient power systems.

Advanced MOSFET protection mechanisms are built directly into the device, improving system reliability, optimizing board space usage, and further reducing component count compared to traditional stand-alone solutions. These mechanisms include cross-conduction prevention, which prevents both high-side and low-side MOSFETs from being on simultaneously, and undervoltage lockout (UVLO) functionality, which can be used to address potential power loss.

The DGD0579U features an enable pin for power management and ultra-low (<1μA) standby current to help extend battery operation time. The DGD0579U is compatible with control signals from microcontrollers and PWM controller ICs, supporting TTL and CMOS logic level inputs (down to 3.3V).

The DGD0579U gate driver is available in a compact W-DFN3030-10 package with a footprint of 3mm x 3mm and a profile height of 0.75mm.