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Diodes Incorporated DGD05473FNQ-7
- Part No.:
- DGD05473FNQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Gate Drivers
- Package:
- 10-UFDFN Exposed Pad
- Datasheet:
-
DGD05473FNQ-7.pdf
- Description:
- IC GATE DRV HALF-BRDG DFN3030-10
- Quantity:
- Payment:
- Shipping:
Inventory:4,015
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Product details
Overview
DGD05473FNQ from Diodes Incorporated is a high-frequency dual-channel gate driver IC for half-bridge N-MOSFET configurations, featuring 50V floating high-side capability, 1.5A source/2.5A sink output current, 20ns typical propagation delay, and integrated bootstrap diode. It enables compact DC-DC converters and Class-D amplifiers requiring precise timing control and robust UVLO protection.
For engineers reviewing the DGD05473FNQ datasheet, DGD05473FNQ pinout, DGD05473FNQ application, or DGD05473FNQ equivalent, key selection criteria include matched HO/LO delay (≤5ns), TTL/CMOS-compatible 3.3V logic inputs, AEC-Q100 qualification for automotive use, and U-DFN3030-10 thermal performance (RθJA = 64°C/W).
Technical Context
The DGD05473FNQ implements independent high-side and low-side drivers with cross-conduction prevention logic to ensure HO and LO never activate simultaneously. Its floating high-side stage supports up to 50V VB and handles dVS/dt transients up to 50 V/ns.
UVLO thresholds are independently set at 3.3–4.4V (positive-going) for both VCC and VB supplies, and propagation delays are tightly matched (≤5ns) between channels to support >500kHz switching in synchronous buck or motor drive topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1.5A source / 2.5A sink - drives gate capacitance of medium-power MOSFETs without external buffers |
| Propagation Delay | 20ns (typ) turn-on - enables stable operation at ≥500kHz switching frequency |
| Delay Matching | ≤5ns max HO/LO - prevents shoot-through in half-bridge power stages |
| Logic Compatibility | 3.3V–5V TTL/CMOS - interfaces directly with MCU GPIOs without level-shifting |
| Operating Temp | −40°C to +125°C - qualified for under-hood automotive and industrial motor control |
| UVLO Thresholds | VCC/BV: 3.3–4.4V (positive-going) - prevents MOSFET misfiring during brown-out conditions |
| Quiescent Current | <1µA shutdown / 130–200µA operating - minimizes standby loss in battery-powered tools |
Pinout & Package
Package: U-DFN3030-10 (3.0mm × 3.0mm × 0.6mm, 10-pin, exposed thermal pad). Molded green compound, NiPdAu-plated terminals, MSL Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Low-side and logic supply input | Provides fixed 4.7–14V bias for internal logic and LO driver; decoupling required near pin |
| 2 NC | No connection | Internally unconnected; must remain floating on PCB layout |
| 3 VB | High-side floating supply | Bias for high-side driver stage; referenced to VS, not COM; requires bootstrap capacitor |
| 4 HO | High-side gate drive output | Drives gate of upper N-MOSFET in half-bridge; rated for 50V floating operation |
| 5 VS | High-side floating return | Source node of high-side MOSFET; serves as local ground reference for HO stage |
| 6 EN | Enable logic input | Active-high enable; logic low disables both HO and LO outputs simultaneously |
| 7 HIN | High-side input signal | In-phase control input for HO; accepts 3.3V/5V logic; includes 0.6V hysteresis |
| 8 LIN | Low-side input signal | In-phase control input for LO; identical logic thresholds and hysteresis as HIN |
| 9 COM | Low-side and logic ground | Common return for VCC, LO, and logic circuitry; must connect to PCB ground plane |
| 10 LO | Low-side gate drive output | Drives gate of lower N-MOSFET; referenced to COM; complements HO in half-bridge |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bootstrap diode | Reduces BOM count and PCB area by eliminating external Schottky diode in most 12V VCC designs |
| Cross-conduction prevention | Hardware-level dead-time insertion ensures HO and LO never overlap, preventing shoot-through failure |
| Matched propagation delays | ≤5ns HO/LO delay mismatch enables precise PWM edge alignment for high-efficiency power conversion |
| AEC-Q100 qualification | Validated for automotive applications including motor control and eCig power stages with PPAP support |
| Ultra-low standby current | <1µA shutdown current extends battery life in portable hand tools and eCig devices |
Applications
| DC-DC Converters | Motor Control |
|---|---|
|
Use Scenario: Synchronous buck regulator in automotive ADAS power modules. IC Role / Device Role / Timing Role: Half-bridge gate driver controlling high-side and low-side N-MOSFETs with matched timing to minimize conduction loss. Use Value: 20ns propagation delay and ≤5ns matching reduce switching losses, enabling higher efficiency at 1MHz+ frequencies. |
Use Scenario: 3-phase inverter for cordless power tool BLDC motors. IC Role / Device Role / Timing Role: Dual-channel driver per half-bridge leg, delivering 1.5A/2.5A peak current to rapidly charge/discharge MOSFET gates. Use Value: Integrated bootstrap diode and <1µA shutdown current extend runtime in battery-operated tools. |
| Battery-Powered Hand Tools | Class-D Power Amplifiers |
|
Use Scenario: High-current motor driver in 18V/20V cordless drills and impact drivers. IC Role / Device Role / Timing Role: Gate driver enabling fast MOSFET switching with robust UVLO protection during voltage sag under load. Use Value: −40°C to +125°C operation ensures reliability across outdoor temperature extremes and motor heating. |
Use Scenario: Output stage driver in portable audio amplifiers with >90% efficiency. IC Role / Device Role / Timing Role: Precision-timed HO/LO outputs minimizing dead time while preventing shoot-through in high-fidelity switching. Use Value: 50V high-side rating supports rail voltages up to ±25V, enabling high-output-power audio designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-frequency half-bridge gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRS2005STRPBF | Higher 2A/2A output, no integrated bootstrap diode, SOIC-16 package | Requires external bootstrap diode and larger PCB area; better suited for industrial inverters with heatsinking | Select when higher peak current (>2A) and board space allow SOIC footprint |
| LM5109BMAX/NOPB | 4A/4A output, 100V high-side rating, MSOP-8 package, no integrated bootstrap diode | Larger drive strength but lacks internal diode and AEC-Q100 qualification; targets non-automotive SMPS | Select for 100V+ bus applications where automotive qualification is not required |
Compared with IRS2005STRPBF and LM5109BMAX/NOPB, the DGD05473FNQ delivers optimal balance of integration (internal bootstrap diode), automotive qualification (AEC-Q100), and compact U-DFN3030-10 packaging-making it preferred for space-constrained, battery-powered, and automotive-grade half-bridge designs.
Availability
DGD05473FNQ is available at Aetrix Electronics and suitable for DC-DC converters, motor control systems, and Class-D power amplifiers requiring stable component supply, automotive-grade reliability, and compact thermal management.
Supply support for DGD05473FNQ 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 power management, signal integrity, and connectivity solutions for automotive, industrial, and consumer markets.
The DGD05473FNQ belongs to Diodes' high-frequency gate driver product line, engineered specifically for half-bridge N-MOSFET control in space-constrained, high-efficiency power conversion applications demanding AEC-Q100 compliance.
FAQ
Is the DGD05473FNQ pin-compatible with earlier Diodes gate drivers like DGD05463?
No. The DGD05473FNQ uses U-DFN3030-10 with 10 pins including dedicated EN, HIN, LIN, and NC pin; DGD05463 uses SO-8 with different pin mapping and no enable function. Layout redesign is required for replacement.
Does the internal bootstrap diode eliminate need for external components in all designs?
Only when VCC ≥ 4.9V. For VCC = 4.7–4.9V, Diodes specifies an external Schottky diode (0.3V VF, 1A) is mandatory per Figure 4 in DS41301 Rev. 5–3. Below 4.7V, the part is not recommended.
What is the maximum allowable dV/dt on the VS node?
The absolute maximum dVS/dt rating is 50 V/ns. Exceeding this may cause false triggering or latch-up. Layout best practices include minimizing loop inductance between VS, HO, and the high-side MOSFET source, and using tight coupling to the bootstrap capacitor.
Can the DGD05473FNQ drive P-channel high-side MOSFETs?
No. The device is designed exclusively for N-channel MOSFETs in half-bridge configuration. Its high-side driver is a floating bootstrap-based N-channel gate driver; it does not support P-MOS high-side topology or complementary drive schemes.
DGD05473FNQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 10-UFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- Half-Bridge
- Channel Type:
- Independent
- Number of Drivers:
- 2
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 4.7V ~ 14V
- Logic Voltage - VIL, VIH:
- 0.8V, 2.4V
- Current - Peak Output (Source, Sink):
- 1.5A, 2.5A
- Input Type:
- CMOS/TTL
- High Side Voltage - Max (Bootstrap):
- 50 V
- Rise / Fall Time (Typ):
- 16ns, 12ns
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-DFN3030-10
DGD05473FNQ-7 FAQ
1.How can I place an order for DGD05473FNQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DGD05473FNQ-7 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 DGD05473FNQ-7 reliable?
The price and inventory of DGD05473FNQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DGD05473FNQ-7 is usually 5 days.
3.What payment methods are accepted for DGD05473FNQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DGD05473FNQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DGD05473FNQ-7?
DGD05473FNQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DGD05473FNQ-7 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 DGD05473FNQ-7?
For technical support, including DGD05473FNQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DGD05473FNQ-7 requirements.
6.How does Aetrix verify that DGD05473FNQ-7 is sourced from the original manufacturer or authorized distributors?
All DGD05473FNQ-7 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 DGD05473FNQ-7 meets industry standards.
7.What is the process for return or replacement of DGD05473FNQ-7?
All DGD05473FNQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DGD05473FNQ-7, 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 DGD05473FNQ-7 part is unused and in its original packaging.
Return procedure for DGD05473FNQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DGD05473FNQ-7 Tags
-
ZXGD3009E6TA
Diodes Incorporated
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1EDN7512BXTSA1
Infineon Technologies
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UCC27517DBVR
Texas Instruments
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MCP1416T-E/OT
Microchip Technology
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MCP1402T-E/OT
Microchip Technology
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MCP1415T-E/OT
Microchip Technology
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MCP1401T-E/OT
Microchip Technology
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IX4428NTR
Littelfuse Inc.
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IRS2005STRPBF
Infineon Technologies
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IRS2008STRPBF
Infineon Technologies
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IX4310TTR
Littelfuse Inc.
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2EDN7524RXTMA1
Infineon Technologies
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