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Diodes Incorporated DGD21814MS14-13
- Part No.:
- DGD21814MS14-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Gate Drivers
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DGD21814MS14-13.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,381
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Product details
Overview
DGD21814MS14-13 from Diodes Incorporated is a high-voltage, high-speed dual-channel gate driver IC for half-bridge N-channel MOSFET/IGBT control, featuring 600V high-side floating capability in bootstrap operation, 1.9A source / 2.3A sink output current, and TTL/CMOS-compatible 3.3V logic inputs. It operates from −40°C to +125°C in SO-14 package and is used in DC-DC converters, motor controls, and Class D amplifiers.
For engineers reviewing the DGD21814MS14-13 datasheet, DGD21814MS14-13 pinout, DGD21814MS14-13 application, or DGD21814MS14-13 equivalent, key selection criteria include high-side voltage tolerance (600V), propagation delay matching (≤35 ns), undervoltage lockout thresholds (8.2–9.8 V), and SO-14 thermal resistance (120 °C/W).
Technical Context
The DGD21814MS14-13 integrates independent high-side and low-side drivers with separate supply domains: VB/VS for high-side (up to 600V offset) and VCC/VSS for low-side/logic (10–20 V). Its Schmitt-triggered HIN/LIN inputs enable noise-immune PWM control with 360 ns minimum pulse width.
Internal UVLO monitors both VB and VCC supplies with hysteresis (≥0.8 V), while output stages deliver fast switching (tR ≤ 60 ns, tF ≤ 35 ns) and tolerate negative transients on LO/COM. The device uses monolithic high-voltage process technology to sustain dVS/dt up to 50 V/ns without false triggering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| High-side voltage rating | 600 V max VS-to-VB offset - enables bootstrap operation in 400 V AC-input PFC and 600 V bus inverters |
| Output drive strength | 1.9 A source / 2.3 A sink - sufficient to charge/discharge 2,000 pF gate capacitance in <50 ns |
| Propagation delay matching | ≤35 ns HO/LO - minimizes shoot-through risk in synchronous half-bridge dead-time design |
| Logic input compatibility | 3.3 V TTL/CMOS - interfaces directly with microcontrollers, DSPs, and FPGA I/O without level-shifting |
| UVLO thresholds | VCCUV− = 7.4–9.0 V, VBSUV− = 7.4–9.0 V - prevents erratic switching during brown-out or startup |
| Thermal resistance | RθJA = 120 °C/W - requires ≤0.83 W average power dissipation on standard 2-layer FR-4 for 125 °C ambient |
Pinout & Package
Package: SO-14 (Type TH), surface-mount, lead-free, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (HIN) | High-side logic input | In-phase control signal for HO; Schmitt-triggered, 3.3 V compatible, internal pull-down |
| 2 (LIN) | Low-side logic input | In-phase control signal for LO; identical electrical specs to HIN |
| 3 (VSS) | Logic ground reference | Reference for HIN/LIN inputs and VCC domain; isolated from COM/VS |
| 5 (COM) | Low-side return path | Common return for LO output and VCC supply; connects to low-side source |
| 6 (LO) | Low-side gate drive output | Drives N-MOSFET/IGBT gate referenced to COM; tolerant to −5 V transient |
| 7 (VCC) | Low-side fixed supply | 10–20 V supply for logic and low-side driver; monitored by UVLO |
| 11 (VS) | High-side floating return | Reference node for high-side driver; tracks low-side switch source potential |
| 12 (HO) | High-side gate drive output | Drives high-side N-MOSFET/IGBT gate referenced to VS; rated for 600 V offset |
| 13 (VB) | High-side floating supply | Bootstrap or isolated supply for high-side driver; UVLO monitored |
Key Features
| Feature | Design Value |
|---|---|
| Floating high-side driver | Supports 600 V bootstrap operation without external level shifters or isolated supplies |
| Matched propagation delays | HO/LO turn-on/off delay mismatch ≤35 ns - reduces required dead time in PWM control |
| Negative transient tolerance | LO output withstands −5 V pulses - accommodates source inductance ringing in hard-switching topologies |
| Independent UVLO monitoring | Separate lockout for VB and VCC ensures safe operation even if one supply fails |
| Wide logic supply range | VCC = 10–20 V - allows direct use of 12 V or 15 V system rails without regulation |
Applications
| DC-DC Converters | Motor Controls |
|---|---|
Use Scenario: Isolated or non-isolated buck-boost and full-bridge DC-DC converters operating at 100–500 kHz with 400 V input bus. IC Role / Device Role / Timing Role: Half-bridge gate driver providing synchronized, high-current gate drive to upper/lower N-MOSFETs with precise timing control. Use Value: Enables efficient zero-voltage switching (ZVS) via tight HO/LO delay matching and fast rise/fall times (≤60 ns). | Use Scenario: 3-phase BLDC or PMSM motor drives in industrial automation and HVAC fans, using 600 V IGBTs or SiC MOSFETs. IC Role / Device Role / Timing Role: High-reliability gate driver delivering robust shoot-through protection and transient immunity in noisy motor phase-leg environments. Use Value: Negative transient tolerance on LO and independent UVLO prevent latch-up during high-dI/dt commutation events. |
| AC-DC Power Supplies | Class D Power Amplifiers |
Use Scenario: Active clamp forward or LLC resonant converters in server PSUs and telecom rectifiers with universal AC input (90–264 VAC). IC Role / Device Role / Timing Role: High-side/low-side driver controlling synchronous rectification and primary-side switching in high-efficiency topologies. Use Value: 600 V high-side rating and 125 °C operation ensure reliability under sustained overload and thermal stress conditions. | Use Scenario: High-fidelity audio amplifiers with >100 W output power, requiring low-distortion PWM switching at 300–500 kHz. IC Role / Device Role / Timing Role: Precision gate driver minimizing propagation skew between channels to preserve PWM fidelity and reduce THD. Use Value: ≤35 ns delay matching and sub-100 ns total propagation enable clean square-wave edge integrity at high frequencies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar half-bridge gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IR2110PbF | Higher VBS UVLO threshold (10–12 V), slower propagation (tON/tOFF ≈ 120 ns), SO-16 package | Less suitable for high-frequency (>300 kHz) designs due to longer delays and lower drive current (2 A peak) | Select when legacy footprint compatibility or higher UVLO hysteresis is prioritized over speed |
| UCC27211DR | 600 V rating, 4 A peak drive, 12 ns delay matching, but no integrated high-side UVLO - requires external monitoring | Better for SiC/GaN systems needing ultra-fast switching, but adds BOM complexity for UVLO circuitry | Select when maximum switching speed and gate current are critical, and system-level UVLO can be implemented externally |
Compared with IR2110PbF and UCC27211DR, DGD21814MS14-13 offers balanced performance: tighter delay matching than IR2110, integrated dual UVLO unlike UCC27211, and SO-14 footprint efficiency-making it optimal for cost-sensitive, thermally constrained 100–400 kHz industrial power stages.
Availability
DGD21814MS14-13 is available at Aetrix Electronics and suitable for DC-DC converters, motor controls, and AC-DC power supplies requiring stable component supply across extended temperature ranges and high-voltage reliability.
Supply support for DGD21814MS14-13 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
The DGD21814M belongs to Diodes' high-voltage gate driver product line, engineered specifically for robust half-bridge control in industrial power conversion, motor drives, and audio amplification where bootstrap operation, thermal resilience, and noise immunity are essential.
FAQ
What is the maximum allowable dVS/dt for reliable high-side operation?
The DGD21814MS14-13 supports up to 50 V/ns dVS/dt on the VS node without false triggering or latch-up, verified per datasheet Absolute Maximum Ratings. This enables stable operation in fast-switching topologies like LLC resonant converters and SiC-based inverters where voltage slew rates exceed 20 V/ns.
Can HIN and LIN be driven independently for non-complementary PWM?
Yes-HIN and LIN are fully independent logic inputs with individual Schmitt triggers and internal pull-downs. They support three-state control (e.g., high-side only, low-side only, or both off), enabling advanced modulation schemes like active neutral-point clamping or adaptive dead-time adjustment without external logic.
Is the SO-14 package suitable for 600 V creepage requirements?
The SO-14 (Type TH) package meets IPC-2221B creepage guidelines for 600 V working voltage when PCB layout follows Diodes' recommended pad dimensions and maintains ≥5.5 mm spacing between VB/VS and low-side pins. Internal mold compound is UL 94V-0 rated and halogen-free.
Does the device support 3.3 V-only logic supply (no VCC rail)?
No-the DGD21814MS14-13 requires VCC = 10–20 V to power both logic and low-side driver stages; HIN/LIN inputs accept 3.3 V signals but do not derive power from them. A dedicated 12 V or 15 V supply is mandatory for VCC, while logic levels may originate from 3.3 V controllers.
DGD21814MS14-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- Half-Bridge
- Channel Type:
- Independent
- Number of Drivers:
- 2
- Gate Type:
- IGBT, N-Channel MOSFET
- Voltage - Supply:
- 10V ~ 20V
- Logic Voltage - VIL, VIH:
- 0.8V, 2.5V
- Current - Peak Output (Source, Sink):
- 1.9A, 2.3A
- Input Type:
- Inverting
- High Side Voltage - Max (Bootstrap):
- 600 V
- Rise / Fall Time (Typ):
- 40ns, 20ns
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO Type TH
DGD21814MS14-13 FAQ
1.How can I place an order for DGD21814MS14-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DGD21814MS14-13 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DGD21814MS14-13 reliable?
The price and inventory of DGD21814MS14-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DGD21814MS14-13 is usually 5 days.
3.What payment methods are accepted for DGD21814MS14-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DGD21814MS14-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DGD21814MS14-13?
DGD21814MS14-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DGD21814MS14-13 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DGD21814MS14-13?
For technical support, including DGD21814MS14-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DGD21814MS14-13 requirements.
6.How does Aetrix verify that DGD21814MS14-13 is sourced from the original manufacturer or authorized distributors?
All DGD21814MS14-13 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DGD21814MS14-13 meets industry standards.
7.What is the process for return or replacement of DGD21814MS14-13?
All DGD21814MS14-13 units undergo pre-shipment inspection (PSI). If there is an issue with DGD21814MS14-13, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DGD21814MS14-13 part is unused and in its original packaging.
Return procedure for DGD21814MS14-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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