Diodes Incorporated DGD2103S8-13

Overview

DGD2103S8-13 from Diodes Incorporated is a high-speed, high-voltage half-bridge gate driver IC for N-channel MOSFETs and IGBTs, featuring 600V bootstrap high-side operation, 290mA source / 600mA sink output current, fixed 520ns internal deadtime, TTL/CMOS-compatible 3.3V logic inputs, and SO-8 (Type TH) packaging. It enables robust motor control and DC-AC inverter designs operating from –40°C to +125°C.

For engineers reviewing the DGD2103S8-13 datasheet, DGD2103S8-13 pinout, DGD2103S8-13 application, or DGD2103S8-13 equivalent, key selection factors include high-side floating voltage tolerance (624V abs max), propagation delay matching (≤60ns), negative transient–tolerant outputs, VCC undervoltage lockout thresholds (7.4–9.8V), and SO-8 thermal resistance (200°C/W on JEDEC 2-layer FR-4).

Technical Context

The DGD2103S8-13 integrates independent high-side and low-side drivers with Schmitt-triggered HIN/LIN* inputs, internal deadtime generation (400–650ns), and separate supply domains: VB/VS for high-side floating operation and VCC for logic/low-side. Its architecture prevents shoot-through by enforcing non-overlapping drive timing and tolerates dVS/dt up to 50V/ns.

It supports bootstrap-based high-side biasing up to 600V offset, with VHO swing referenced to VS and capable of driving gate capacitances typical of 30–100A IGBTs or 50–200A MOSFETs. The device includes undervoltage lockout on VCC (positive-going threshold 8.0–9.8V) and leakage-limited high-side supply current (≤50µA at VB = VS = 600V).

Key Specifications

Pinout & Package

Package: SO-8 (Type TH), surface-mount, lead-free, RoHS-compliant, moisture sensitivity level 3 per J-STD-020, 0.075g weight.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IR2103S and UCC27201A, DGD2103S8-13 uniquely combines 600V bootstrap capability, fixed hardware deadtime, and 3.3V logic compatibility in SO-8 - making it optimal for cost-sensitive, medium-voltage inverter and converter designs where layout simplicity and shoot-through immunity are prioritized over peak drive current.

Availability

DGD2103S8-13 is available at Aetrix Electronics and suitable for DC-AC inverters, motor controls, and AC-DC power supplies requiring stable component supply across industrial temperature ranges and long-term production cycles.

Supply support for DGD2103S8-13 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-reliability power management, signal integrity, and interface solutions for industrial, computing, and consumer markets.

The DGD2103 belongs to Diodes' high-voltage gate driver product line, engineered specifically for robust half-bridge control in energy-efficient power conversion systems operating up to 600V with minimal external components.

FAQ

Is DGD2103S8-13 recommended for new designs?

No - Diodes Incorporated marks DGD2103S8-13 as "NOT RECOMMENDED FOR NEW DESIGN USE" in its official datasheet (DS38278 Rev. 5-3). This indicates the part is in mature or last-time-buy status, with newer alternatives like DGD2104 or AP2103 offered for enhanced features including improved dV/dt immunity and tighter propagation delay matching.

What is the maximum allowable dVS/dt for reliable operation?

The DGD2103S8-13 is rated for dVS/dt up to 50V/ns under recommended operating conditions. Exceeding this rate risks false triggering of the high-side level shifter, leading to erratic HO output. Layout practices - including minimized VS loop inductance and local ceramic decoupling at VB/VS - are essential to maintain this limit in 600V systems.

Can DGD2103S8-13 drive SiC MOSFETs?

Yes, but with constraints: its 290mA source / 600mA sink capability supports gate charges ≤30nC at typical 15V VGS, suitable for low-to-mid-power SiC devices. However, its 820ns max tON and lack of active Miller clamp limit performance in high-frequency (>500kHz), high-dV/dt SiC applications where dedicated SiC drivers are preferred.

How is the internal deadtime implemented and is it adjustable?

The 520ns typical deadtime is generated by an internal monostable circuit triggered on input transitions - it is fixed and not user-adjustable. This hardware-based approach eliminates dependency on external timing components or MCU firmware timing, ensuring consistent shoot-through protection across temperature and supply variations.