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Diodes Incorporated DGD21084S14-13
- Part No.:
- DGD21084S14-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Gate Drivers
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DGD21084S14-13.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,925
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Product details
Overview
DGD21084S14-13 from Diodes Incorporated is a high-voltage, high-speed half-bridge gate driver IC designed to control two N-channel MOSFETs or IGBTs in bootstrap-configured power stages. It supports 600V high-side floating operation, features programmable dead time (400–680 ns), TTL/CMOS-compatible 3.3V logic inputs, and operates across –40°C to +125°C. Used in DC-DC converters, motor controls, and Class D amplifiers.
For engineers reviewing the DGD21084S14-13 datasheet, DGD21084S14-13 pinout, DGD21084S14-13 application, or DGD21084S14-13 equivalent, key selection criteria include bootstrap voltage tolerance (600V), dead-time configurability, output drive strength (200 mA high-side, 600 mA low-side), propagation delay matching (≤30 ns), and SO-14 thermal performance (RθJA = 120 °C/W).
Technical Context
The DGD21084S14-13 integrates independent high-side and low-side drivers with floating high-side architecture enabled by bootstrap operation. Its Schmitt-triggered HIN/LIN* inputs provide noise immunity, while undervoltage lockout (UVLO) thresholds of 7.4–9.8 V on both VCC and VB rails ensure safe switching under supply sag.
Dead time is set externally via resistor on DT pin (400–680 ns range), and timing parameters are tightly matched: |tON − tOFF| ≤ 30 ns, tMDT ≤ 60 ns. Output stage design minimizes cross-conduction risk through high-current pulsed drive (IO+ = 200 mA, IO− = 600 mA) and fast transitions (tR = 100–220 ns, tF = 35–80 ns).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| High-side max voltage | 600 V - Enables use in 400 VAC rectified bus and industrial DC-DC topologies |
| Dead time range | 400–680 ns - Configurable via external resistor to prevent shoot-through in hard-switching bridges |
| Logic supply range | 10–20 V - Supports wide-input auxiliary supplies without regulation overhead | Input logic compatibility | 3.3 V TTL/CMOS - Direct interface with microcontrollers and FPGA I/O without level-shifting |
| Propagation delay match | ≤30 ns - Ensures symmetrical timing for precise PWM duty-cycle control |
| Operating temperature | –40°C to +125°C - Validated for under-hood automotive and industrial ambient conditions |
| Output short-circuit current | 200 mA (HO), 600 mA (LO) - Sustains gate charge/discharge during transient overload events |
Pinout & Package
Package: SO-14 (Type TH), surface-mount, lead-free, RoHS-compliant molded plastic housing with matte tin-plated leads; moisture sensitivity level 3 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Low-side and logic supply input | Fixed 10–20 V rail powering internal logic and LO driver; decoupling critical for noise immunity |
| 2 HIN | High-side logic input | In-phase signal controlling HO; Schmitt-triggered with internal pull-down for robust edge detection |
| 3 LIN* | Low-side logic input | Inverted signal controlling LO; active-low polarity enables direct PWM complement generation |
| 4 DT | Dead time programming node | Resistor-connected pin setting interlock interval between HO/LO transitions to prevent shoot-through |
| 5 VSS | Logic ground reference | Common return for HIN/LIN*/DT; offset-tolerant (–5 V to +5 V vs. VCC) for flexible PCB layout |
| 6 COM | Low-side power return | Return path for LO output current; must be low-inductance connection to minimize ground bounce |
| 7 LO | Low-side gate drive output | Capable of 600 mA sink current; drives bottom MOSFET gate with fast fall time (35–80 ns) |
| 11 VS | High-side floating supply return | Reference for HO output; tracks switching node potential up to 600 V offset from VSS |
| 12 HO | High-side gate drive output | 200 mA source current; drives top MOSFET gate referenced to VS, enabling bootstrap bootstrap operation |
| 13 VB | High-side floating supply input | Bootstrap capacitor charging node; rated to 624 V absolute max; UVLO protects against insufficient gate drive |
| 8,9,10,14 NC | No internal connection | Unused pins; must remain unconnected per datasheet to avoid parasitic coupling or latch-up risk |
Key Features
| Feature | Design Value |
|---|---|
| Floating high-side driver | Supports 600 V bootstrap operation - eliminates need for isolated bias supplies in half-bridge inverters |
| Programmable dead time | 400–680 ns via single external resistor - enables system-level optimization for Si/SiC MOSFETs and IGBTs |
| Output transient tolerance | Withstands negative transients at LO/COM - improves reliability in noisy motor-drive and inverter environments |
| UVLO protection | Independent thresholds on VCC (7.4–9.8 V) and VB (7.4–9.8 V) - prevents partial turn-on during brownout conditions |
| Logic input flexibility | 3.3 V compatible with internal pull-down - simplifies interface to modern MCUs and avoids external bias components |
Applications
| DC-DC Converters | Motor Controls |
|---|---|
|
Use Scenario: Isolated or non-isolated synchronous buck/boost converters operating from 400 V DC bus. IC Role / Device Role / Timing Role: Half-bridge gate driver coordinating high-side and low-side N-MOSFET switching with precise dead time. Use Value: 600 V high-side rating and 30 ns delay matching enable >95% efficiency at 100 kHz switching frequency with minimal shoot-through risk. |
Use Scenario: Brushless DC (BLDC) motor inverter stages in HVAC blowers and industrial pumps. IC Role / Device Role / Timing Role: Gate driver managing three-phase bridge leg pairs with programmable dead time to accommodate varying MOSFET gate charge. Use Value: 600 mA low-side sink current ensures rapid gate discharge during commutation, reducing conduction losses and torque ripple. |
| Class D Amplifiers | AC-DC Power Supplies |
|
Use Scenario: High-fidelity audio amplifiers requiring low-distortion PWM switching at >300 kHz carrier frequency. IC Role / Device Role / Timing Role: High-speed half-bridge driver delivering matched rise/fall times and minimal propagation skew. Use Value: 100–220 ns rise time and ≤30 ns delay mismatch preserve PWM fidelity and reduce EMI in sensitive audio bands. |
Use Scenario: PFC front-end and LLC resonant converter stages in server PSUs and telecom rectifiers. IC Role / Device Role / Timing Role: Bootstrap-based high-side driver enabling compact, cost-effective 600 V half-bridge implementation. Use Value: –40°C to +125°C operation and 120 °C/W thermal resistance support continuous full-load operation in constrained airflow enclosures. |
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 |
|---|---|---|---|
| IRS21844STRPBF | Fixed 600 ns dead time; no external programming; higher VCC UVLO threshold (10–16 V) | Lacks DT pin flexibility; less suitable for SiC MOSFETs requiring sub-500 ns dead time | Select when design prioritizes simplicity over dead-time tuning and uses standard silicon MOSFETs |
| UCC27211DR | 600 V capability; dual independent outputs; no integrated dead-time control; requires external logic | Requires external dead-time generator or controller-level timing management | Select when system-level PWM controller provides precise dead-time control and higher peak current (4 A) is needed |
Compared with IRS21844STRPBF and UCC27211DR, the DGD21084S14-13 uniquely combines programmable dead time, 3.3 V logic compatibility, and matched propagation delays in a single SO-14 package-making it optimal for space-constrained, multi-platform designs needing flexibility without external timing circuitry.
Availability
DGD21084S14-13 is available at Aetrix Electronics and suitable for DC-DC converters, motor controls, and Class D amplifiers requiring stable component supply despite its obsolete status-inventory is secured for legacy design continuity and repair programs.
Supply support for DGD21084S14-13 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 timing solutions for industrial, computing, and consumer markets.
The DGD21084 belongs to Diodes' high-voltage gate driver product line, engineered specifically for efficient, robust half-bridge switching in energy-conversion systems where bootstrap operation, thermal resilience, and logic-level compatibility are critical.
FAQ
Is DGD21084S14-13 still in production?
No-Diodes Incorporated has officially discontinued the DGD21084S14-13 (marked "OBSOLETE – PART DISCONTINUED" in DS38342 Rev. 3-4). However, Aetrix Electronics maintains verified legacy stock with full traceability and extended availability support for ongoing production and repair needs.
Can DGD21084S14-13 drive SiC MOSFETs?
Yes-its 600 V high-side rating, 400–680 ns programmable dead time, and fast propagation (220 ns typ.) and rise times (100 ns typ.) align with common SiC gate drive requirements. Ensure gate resistor values and bootstrap capacitor sizing are validated for target SiC device Qg and switching frequency.
What is the minimum recommended dead time resistor value?
The datasheet specifies RDT = 0 Ω yields 400–680 ns dead time. While not explicitly defined as "minimum," 0 Ω is the lower bound used in characterization. For tighter control, use ≥1 kΩ to avoid noise susceptibility on the DT pin; always verify timing with oscilloscope measurements under load.
Does DGD21084S14-13 require external bootstrap diode and capacitor?
Yes-bootstrap operation mandates an external fast-recovery diode (e.g., 1N4148W or equivalent) and low-ESR capacitor (typically 0.1–1 µF ceramic) between VB and VS. The diode must withstand ≥600 V reverse voltage and support required charge transfer at maximum switching frequency.
DGD21084S14-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 0.6V, 2.5V
- Current - Peak Output (Source, Sink):
- 200mA, 600mA
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 600 V
- Rise / Fall Time (Typ):
- 100ns, 35ns
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
DGD21084S14-13 FAQ
1.How can I place an order for DGD21084S14-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DGD21084S14-13 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 DGD21084S14-13 reliable?
The price and inventory of DGD21084S14-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DGD21084S14-13 is usually 5 days.
3.What payment methods are accepted for DGD21084S14-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DGD21084S14-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DGD21084S14-13?
DGD21084S14-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DGD21084S14-13 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 DGD21084S14-13?
For technical support, including DGD21084S14-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DGD21084S14-13 requirements.
6.How does Aetrix verify that DGD21084S14-13 is sourced from the original manufacturer or authorized distributors?
All DGD21084S14-13 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 DGD21084S14-13 meets industry standards.
7.What is the process for return or replacement of DGD21084S14-13?
All DGD21084S14-13 units undergo pre-shipment inspection (PSI). If there is an issue with DGD21084S14-13, 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 DGD21084S14-13 part is unused and in its original packaging.
Return procedure for DGD21084S14-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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