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Diodes Incorporated DGD21042S8-13
- Part No.:
- DGD21042S8-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DGD21042S8-13.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,049
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Product details
Overview
DGD21042S8-13 from Diodes Incorporated is a high-voltage half-bridge gate driver IC for N-channel MOSFETs and IGBTs, featuring 600V high-side bootstrap operation, 290mA source / 600mA sink output current, and a fixed 430ns (typ) internal deadtime. It operates from -40°C to +125°C in SO-8 (Type TH) package and supports 3.3V–5V logic inputs for DC-DC converters and motor control inverters.
For engineers reviewing the DGD21042S8-13 datasheet, DGD21042S8-13 pinout, DGD21042S8-13 application, or DGD21042S8-13 equivalent, key selection criteria include high-side floating voltage capability (VS up to 600V), TTL/CMOS-compatible dual logic inputs (IN and SD*), and guaranteed deadtime for shoot-through prevention in half-bridge topologies.
Technical Context
The DGD21042S8-13 integrates independent high-side and low-side drivers with isolated floating supply (VB/VS) and fixed internal deadtime logic to prevent cross-conduction. Its Schmitt-triggered inputs tolerate noise in noisy power environments, and undervoltage lockout (UVLO) is implemented separately for VCC (7.4–9.6V threshold) and VBS (5.5–7.5V threshold).
It uses high-voltage BCDMOS process technology enabling 624V absolute max VB rating and 50V/ns dVS/dt immunity. The output stage employs optimized pulse-current buffers delivering 290mA source and 600mA sink into capacitive gate loads, with propagation delays of 680ns (tON, VS = 0V) and 150ns (tOFF, VS = 600V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| High-Side Voltage Rating | 600V bootstrap operation enables use in 400V DC bus systems like PFC stages and inverters |
| Output Drive Strength | 290mA source / 600mA sink ensures fast turn-on/turn-off of 10nF+ gate capacitances |
| Internal Deadtime | 430ns typical prevents shoot-through in hard-switched half-bridges without external timing |
| Logic Input Compatibility | 3.3V–5V TTL/CMOS levels allow direct interface with microcontrollers and PWM controllers |
| Operating Temperature | -40°C to +125°C ambient supports under-hood automotive and industrial power modules |
| Supply Voltage Range | VCC: 10V–20V; VB–VS offset: 10V–20V - matches standard gate drive rail requirements |
| Propagation Delay Match | ≤60ns HO/LO delay mismatch maintains precise timing symmetry in complementary switching |
Pinout & Package
Package: SO-8 (Type TH), surface-mount, lead-free, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Low-side and logic supply input | Provides power for internal logic and low-side driver; UVLO active at <7.4V |
| 2 IN | Phase control input | Drives both HO and LO outputs in phase; Schmitt-triggered for noise immunity |
| 3 SD* | Active-low shutdown input | Pulls both outputs low when asserted; compatible with 3.3V logic |
| 4 COM | Low-side return and logic ground | Common reference for VCC, IN, SD*, and LO; must be low-impedance path |
| 5 LO | Low-side gate drive output | Drives N-MOSFET/IGBT gate referenced to COM; 600mA sink capability |
| 6 VS | High-side floating supply return | Reference node for high-side driver; tracks switching node potential up to 600V |
| 7 HO | High-side gate drive output | Drives high-side N-MOSFET/IGBT gate referenced to VS; 290mA source capability |
| 8 VB | High-side floating supply input | Connects to bootstrap capacitor; supplies high-side driver during high-side conduction |
Key Features
| Feature | Design Value |
|---|---|
| Floating high-side driver | Enables 600V bootstrap operation without external level-shifters or isolated supplies |
| Integrated deadtime logic | 430ns fixed delay eliminates need for external RC timing networks or controller-based deadtime |
| Negative transient tolerance | Outputs withstand –5V undershoot on VS/COM, critical for inductive load commutation |
| Dual UVLO protection | Independent thresholds for VCC (7.4–9.6V) and VBS (5.5–7.5V) prevent erratic switching during brownout |
| Schmitt-trigger inputs | Hysteresis >1.7V on IN/SD* rejects EMI-induced glitches in high-dv/dt power environments |
Applications
| DC-DC Converters | Motor Controls |
|---|---|
Use Scenario: Isolated or non-isolated buck-boost and LLC resonant converters with 300–400V DC input. IC Role / Device Role / Timing Role: Half-bridge gate driver coordinating synchronous rectification and primary-side switching. Use Value: 430ns deadtime and 600V high-side rating enable reliable operation at 100kHz+ switching frequencies with minimal external components. | Use Scenario: Brushless DC (BLDC) and permanent magnet synchronous motor (PMSM) drives in HVAC and industrial pumps. IC Role / Device Role / Timing Role: Gate driver for three-phase inverter leg, controlling six N-channel power devices. Use Value: 290mA/600mA drive strength reduces gate charge time, improving efficiency at 20kHz PWM carrier frequencies. |
| AC-DC Power Supplies | Class D Power Amplifiers |
Use Scenario: High-efficiency server PSU and telecom rectifier front-ends using active clamp forward or LLC topologies. IC Role / Device Role / Timing Role: Primary-side half-bridge driver managing ZVS transitions and minimizing switching losses. Use Value: 50V/ns dVS/dt immunity and negative transient tolerance ensure robustness against parasitic ringing in high-power layouts. | Use Scenario: Audio amplifiers delivering >100W into 4Ω loads with >90% efficiency. IC Role / Device Role / Timing Role: High-fidelity gate driver for half-bridge output stage, preserving signal integrity at 300–500kHz switching. Use Value: ≤60ns HO/LO delay matching minimizes distortion by maintaining precise complementary edge alignment. |
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 |
|---|---|---|---|
| IRS21844SPbF | Higher 650V VB rating; 400ns deadtime; requires external bootstrap diode | Better suited for 450V+ DC bus designs; less integrated UVLO monitoring | Select when higher voltage margin or legacy design compatibility is required |
| LM5109BMAX | Lower 100V high-side rating; 1A peak drive; no integrated deadtime logic | Limited to low-voltage (<100V) half-bridges; requires external deadtime circuitry | Choose only for cost-sensitive, low-voltage motor control where integration is secondary |
Compared with IRS21844SPbF and LM5109BMAX, the DGD21042S8-13 delivers optimal balance of 600V capability, integrated deadtime, and 3.3V logic compatibility-making it ideal for mid-voltage industrial and computing power supplies where layout simplicity and thermal robustness are critical.
Availability
DGD21042S8-13 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 and high-voltage operating conditions.
Supply support for DGD21042S8-13 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 and signal integrity solutions for industrial, computing, and consumer markets.
The DGD21042 belongs to Diodes' high-voltage gate driver product line, engineered specifically for efficient, robust half-bridge control in switched-mode power conversion and motor drive applications.
FAQ
What is the maximum allowable dVS/dt for the DGD21042S8-13?
The DGD21042S8-13 is rated for 50 V/ns dVS/dt on the VS pin, verified per Absolute Maximum Ratings. This specification ensures reliable operation during fast switching transitions in high-frequency inverters and resonant converters, preventing false triggering or latch-up due to capacitive coupling.
Does the DGD21042S8-13 require an external bootstrap diode?
Yes - the DGD21042S8-13 requires an external fast-recovery bootstrap diode (e.g., 1N4148WS or equivalent) between VB and the bootstrap capacitor. Unlike some integrated-diode drivers, its VB pin is a passive supply input; the diode must handle reverse recovery stress during high-side conduction.
Can the DGD21042S8-13 drive IGBTs directly?
Yes - the DGD21042S8-13 is explicitly characterized for IGBT driving, with 600mA sink and 290mA source capability sufficient for gate charge/discharge of up to 1000nC IGBTs at 20kHz. Its negative transient tolerance on VS/COM also protects against inductive flyback during IGBT turn-off.
How does the shutdown (SD*) pin behave during power-up?
The SD* pin is active-low and internally pulled up. During power-up, if SD* is left unconnected or pulled high, the device remains enabled after VCC and VBS UVLO thresholds are met. Asserting SD* low forces both HO and LO low, overriding IN state - ensuring safe default behavior before controller initialization.
DGD21042S8-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Driven Configuration:
- Half-Bridge
- Channel Type:
- Synchronous
- 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):
- 290mA, 600mA
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 600 V
- Rise / Fall Time (Typ):
- 70ns, 35ns
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
DGD21042S8-13 FAQ
1.How can I place an order for DGD21042S8-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DGD21042S8-13 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 DGD21042S8-13 reliable?
The price and inventory of DGD21042S8-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DGD21042S8-13 is usually 5 days.
3.What payment methods are accepted for DGD21042S8-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DGD21042S8-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DGD21042S8-13?
DGD21042S8-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DGD21042S8-13 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 DGD21042S8-13?
For technical support, including DGD21042S8-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DGD21042S8-13 requirements.
6.How does Aetrix verify that DGD21042S8-13 is sourced from the original manufacturer or authorized distributors?
All DGD21042S8-13 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 DGD21042S8-13 meets industry standards.
7.What is the process for return or replacement of DGD21042S8-13?
All DGD21042S8-13 units undergo pre-shipment inspection (PSI). If there is an issue with DGD21042S8-13, 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 DGD21042S8-13 part is unused and in its original packaging.
Return procedure for DGD21042S8-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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