Diodes Incorporated DGD0597FU-7

Overview

DGD0597FU from Diodes Incorporated is a high-frequency dual-channel gate driver IC for half-bridge N-channel MOSFET configurations, featuring 40V floating high-side capability, 1.5A source/2.5A sink drive strength, 14ns typical propagation delay, and operation from -40°C to +125°C in V-QFN3030-8 package. It enables compact wireless power chargers and motor drives by supporting fast switching with matched timing.

For engineers reviewing the DGD0597FU datasheet, DGD0597FU pinout, DGD0597FU application, or DGD0597FU equivalent, key selection criteria include bootstrap diode integration, TTL/CMOS-compatible logic inputs (down to 3.3V), 3.4V UVLO with 0.4V hysteresis, and internal delay matching of 2.5ns typical-critical for synchronous half-bridge control stability.

Technical Context

The DGD0597FU implements independent high-side and low-side drivers with isolated floating supply (VB/VS) architecture enabling operation up to 40V offset, while maintaining logic-level compatibility via HIN/LIN inputs with internal pull-down resistors. Its integrated bootstrap diode eliminates external component needs for high-side gate charge replenishment.

Propagation delays are tightly matched (2.5ns typical) between channels, and rise/fall times are optimized at 7ns/5ns respectively under 1000pF load-enabling >1MHz switching frequencies without shoot-through risk in hard-switched topologies.

Key Specifications

Pinout & Package

V-QFN3030-8 (Standard) package: 3.0mm × 3.0mm body, 0.65mm pitch, exposed thermal pad connected to COM for PCB-level heat dissipation and noise reduction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar half-bridge gate driver applications.

Compared with IRS2005STRPBF and LM5109BMAX/NOPB, the DGD0597FU delivers superior timing precision (14ns vs ≥20ns), integrated bootstrap functionality, and tighter delay matching-making it optimal for compact, high-frequency half-bridge designs where gate drive simplicity and switching accuracy are critical.

Availability

DGD0597FU is available at Aetrix Electronics and suitable for wireless power chargers, BLDC motor drives, and USB-C PD power adapters requiring stable component supply across extended temperature ranges and high-volume production cycles.

Supply support for DGD0597FU includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-performance power management, signal integrity, and connectivity solutions for industrial, computing, and consumer markets.

The DGD0597FU belongs to Diodes' high-frequency gate driver product line, engineered specifically for compact, efficient half-bridge power conversion in space- and timing-critical applications such as wireless charging and motor control.

FAQ

What is the maximum allowable dV/dt on the VS pin?

The DGD0597FU specifies a maximum transient dVS/dt of 50 V/ns per absolute maximum ratings. This limit ensures reliable level-shifting operation of the high-side driver under fast-switching conditions. Exceeding this rate risks false triggering or latch-up; layout must minimize parasitic inductance between VS and power MOSFET source.

Can the DGD0597FU drive 100V MOSFETs in a half-bridge?

No-the DGD0597FU's high-side floating supply (VB) is rated for up to +50V absolute maximum, and its high-side offset voltage (VS) is limited to 40V. Driving 100V MOSFETs would exceed these ratings and risk device failure. It is qualified only for ≤40V bus applications such as 24V/48V motor drives and wireless power transmitters.

Is an external bootstrap capacitor required despite the internal diode?

Yes-an external bootstrap capacitor remains mandatory. The internal diode only replaces the external diode in the bootstrap loop; the capacitor (typically 0.1µF–1µF X7R ceramic) must still be placed between VB and VS to store charge for high-side gate drive during continuous conduction. Layout proximity to VB/VS pins is critical for low-ESL performance.

Does the DGD0597FU support 3.3V-only logic inputs without level shifting?

Yes-HIN and LIN inputs accept logic-high voltages down to 2.1V (min) and logic-low up to 1.3V (max) at 25°C, fully compatible with 3.3V CMOS outputs. No external level shifter is needed, and internal pull-down resistors ensure defined state during MCU reset or unpowered states.