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Texas Instruments UCC21530DWK
- Part No.:
- UCC21530DWK
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 14-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
UCC21530DWK.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:5,503
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Product details
Overview
UCC21530DWK from Texas Instruments is an isolated dual-channel gate driver IC designed for high-reliability power stage control in IGBT, Si MOSFET, and SiC MOSFET applications. It delivers 4A peak source and 6A peak sink output current, features 5.7kVRMS reinforced isolation with ≥125V/ns CMTI, and supports programmable dead time up to 600ns - enabling robust half-bridge, dual high-side, or dual low-side configurations in solar inverters and EV charging systems.
For engineers reviewing the UCC21530DWK datasheet, UCC21530DWK pinout, UCC21530DWK application, or UCC21530DWK equivalent, key selection criteria include its 3.3mm channel-to-channel spacing, SOIC-14 (DWK) package with internal functional isolation, 33ns typical propagation delay, –40°C to +150°C junction temperature range, and compatibility with 3V–18V logic inputs and up to 25V output drive supplies.
Technical Context
The UCC21530DWK integrates two independently isolated secondary-side drivers separated by a reinforced 5.7kVRMS barrier, enabling up to 1850V working voltage between VSSA and VSSB. Its input side uses capacitive isolation with differential signaling to achieve >125V/ns common-mode transient immunity under fast-switching conditions.
Programmable dead time is implemented via an external resistor on the DT pin (10 kΩ → 100 ns, 50 kΩ → 500 ns), while EN pin control allows synchronous shutdown of both outputs. Internal UVLO protection operates separately on VCCI (2.5–2.85V threshold) and VDDA/VDDB (8V or 12V UVLO variants), ensuring fail-safe operation during supply brownouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation rating | 5.7kVRMS for 1 minute per UL 1577; 8000VPK reinforced per VDE 0884-17 - enables use in safety-critical AC mains-connected systems |
| Output drive strength | 4A peak source / 6A peak sink - sufficient to drive high-Qg SiC MOSFETs at >100kHz switching frequencies |
| Propagation delay | 33ns typical (26–45ns max) - supports precise timing control in high-frequency half-bridge topologies |
| Pulse-width distortion | ≤6ns maximum - ensures matched channel timing critical for minimizing shoot-through risk |
| CMTI | >125V/ns - maintains signal integrity during fast dV/dt transients in motor drives and inverters |
| Operating temperature | –40°C to +150°C junction - suitable for under-hood automotive and industrial ambient environments |
| Input logic compatibility | TTL/CMOS thresholds (0.8–1.2V low, 1.2–2.0V high) - interoperable with microcontrollers, DSPs, and FPGA I/O |
Pinout & Package
UCC21530DWK uses a wide-body SOIC-14 (DWK) package measuring 10.30mm × 7.50mm with 3.3mm channel-to-channel spacing and reinforced creepage/clearance (>8mm) for high-voltage isolation compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA, INB | Primary-side digital inputs | TTL/CMOS-compatible control signals for channels A and B; internally pulled low when floating |
| EN | Global enable input | Active-high; forces both outputs low when low - used for system-level fault shutdown |
| DT | Dead-time configuration | Resistor-to-GND sets dead time (10–600ns); tied to VCCI disables dead time and allows overlap |
| VCCI, GND | Primary-side power & reference | 3–18V logic supply with UVLO; primary ground reference for all input/control circuitry |
| OUTA, OUTB | Secondary-side gate drive outputs | High-current outputs driving FET/IGBT gates; referenced to isolated VSSA/VSSB grounds |
| VDDA, VDDB, VSSA, VSSB | Isolated output-side supplies | Independent 9.2–25V (8V UVLO) or 13.5–25V (12V UVLO) bias rails per channel with dedicated grounds |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel functional isolation | Independent VSSA/VSSB grounds support up to 1850V working voltage between outputs - enables split-rail or asymmetric half-bridge designs |
| Programmable dead time | Externally adjustable 0–600ns via single resistor on DT pin - eliminates need for external timing logic or gate-delay networks |
| Robust noise immunity | ≥125V/ns CMTI plus 1nF bypassing recommendations on EN/DT pins - sustains reliable operation in EMI-heavy motor/inverter environments |
| Fault-safe logic failure response | Primary-side logic faults force both outputs low within <2µs - prevents shoot-through during controller lockup or communication loss |
| Multi-threshold UVLO protection | Separate VCCI (2.5–2.85V) and VDDA/VDDB (8V or 12V variants) UVLO with hysteresis - ensures clean power-up sequencing and brownout recovery |
Applications
| Solar String Inverters | EV DC Fast Charging Piles |
|---|---|
|
Use Scenario: High-efficiency MPPT tracking with bidirectional SiC-based DC/AC conversion in rooftop and utility-scale PV systems. IC Role / Device Role / Timing Role: Dual-channel isolated gate driver controlling high-side and low-side SiC MOSFETs in interleaved half-bridge legs. Use Value: 33ns propagation delay and ≤6ns pulse-width distortion enable precise 100–200kHz switching with minimal dead-time margin, improving system efficiency by >0.5%. |
Use Scenario: 15–350kW liquid-cooled DC charging stations requiring galvanic isolation between control MCU and 1000V+ DC bus power stages. IC Role / Device Role / Timing Role: Isolated gate driver for dual active bridge (DAB) or three-phase rectifier stages handling 300–1000V DC output. Use Value: 5.7kVRMS isolation and >125V/ns CMTI ensure safe, noise-immune operation despite rapid bus voltage transients during plug/unplug events. |
| Industrial AC Servo Drives | Energy Storage System (ESS) Bi-directional Converters |
|
Use Scenario: Precision motion control in CNC machines and robotics using three-phase IGBT/SiC inverters with field-oriented control (FOC). IC Role / Device Role / Timing Role: Half-bridge configured UCC21530DWK driving each phase leg with programmable dead time to prevent shoot-through during high-dV/dt commutation. Use Value: 4A/6A peak drive current reduces gate charge time for high-Qg IGBTs, enabling faster torque response and lower conduction losses at 10–20kHz PWM. |
Use Scenario: Grid-tied battery storage systems requiring bi-directional power flow between 400–1500V DC battery banks and 3-phase AC grid interfaces. IC Role / Device Role / Timing Role: Dual isolated driver supporting both buck (charge) and boost (discharge) modes in modular multi-level converter (MMC) or two-level topologies. Use Value: Independent VDDA/VSSA and VDDB/VSSB rails allow asymmetric supply configurations - e.g., 15V for high-side and 20V for low-side - optimizing Rds(on) and switching loss trade-offs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8273BD-D-IS | 3.75kVRMS isolation (UL 1577), 4A/6A drive, but fixed 100ns dead time; no DT pin adjustment | Limited flexibility in dead-time tuning for varying FET Qg or layout parasitics | Preferred where fixed timing simplifies design and 3.75kVRMS meets system isolation requirements |
| ADUM4223BRIZ | 5kVRMS isolation (UL 1577), 4A/6A drive, but only 35ns propagation delay; no programmable dead time | Lacks external dead-time control - requires MCU-based timing or external logic | Selected when ultra-low propagation delay is prioritized over configurability in space-constrained designs |
Compared with Si8273BD-D-IS and ADUM4223BRIZ, the UCC21530DWK uniquely combines 5.7kVRMS reinforced isolation, fully programmable dead time (0–600ns), and dual independent secondary-side supplies - making it optimal for high-voltage, high-reliability applications demanding both safety certification headroom and timing flexibility.
Availability
UCC21530DWK is available at Aetrix Electronics and suitable for solar string inverters, EV DC fast charging piles, and industrial AC servo drives requiring stable component supply across long production lifecycles and high-temperature operating conditions.
Supply support for UCC21530DWK 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-reliability power management solutions for industrial, automotive, and renewable energy markets.
The UCC21530DWK belongs to TI's high-performance isolated gate driver product line, engineered specifically for next-generation SiC and GaN power systems demanding enhanced isolation, timing precision, and thermal resilience in harsh environments.
FAQ
What is the maximum recommended switching frequency for UCC21530DWK?
The UCC21530DWK is specified to drive IGBTs, Si MOSFETs, and SiC MOSFETs up to 5MHz. However, practical maximum switching frequency depends on load capacitance, gate resistance, and thermal constraints. With typical 1.8nF load and 15V VDD, rise/fall times are 6–16ns and 7–12ns respectively - supporting reliable operation at 1–3MHz in optimized layouts. For sustained 5MHz use, thermal derating and careful PCB layout are essential. The UCC21530DWK datasheet confirms performance up to 5MHz under bench conditions.
Does UCC21530DWK support both 8V and 12V UVLO variants?
Yes, UCC21530DWK is offered in two UVLO variants: one with 8V rising threshold (UCC21530B) and another with 12V rising threshold (UCC21530). Both versions maintain identical pinout, isolation, drive strength, and timing specs. The choice depends on secondary-side supply stability - the 12V variant provides greater noise margin for 15V VDD rails, while the 8V version suits 12V systems with tighter regulation. The UCC21530DWK part number itself does not encode the UVLO version; ordering must specify suffix 'B' or blank accordingly.
How is dead time configured on UCC21530DWK?
Dead time on UCC21530DWK is configured via the DT pin: tying DT to VCCI disables dead time (allowing output overlap), while connecting a resistor RDT between DT and GND sets dead time per DT(ns) = 10 × RDT(kΩ). Common values are 10kΩ (100ns), 20kΩ (200ns), and 50kΩ (500ns). TI recommends adding ≤1nF ceramic capacitor near DT for noise immunity. The UCC21530DWK specification guarantees 80–600ns dead time across temperature and process variation.
What is the channel-to-channel spacing on UCC21530DWK and why does it matter?
The UCC21530DWK has 3.3mm spacing between driver channels in its DWK SOIC-14 package. This physical separation, combined with internal insulation barriers, ensures ≥1850V working voltage between VSSA and VSSB - critical for half-bridge topologies where high-side and low-side grounds experience large potential differences. It also contributes to meeting reinforced isolation standards (VDE 0884-17, UL 1577) without requiring additional board-level creepage. The UCC21530DWK achieves this in a standard SOIC footprint, avoiding larger packages.
Can UCC21530DWK be used in single-channel mode?
Yes, UCC21530DWK supports flexible configuration: both channels can operate as independent low-side drivers, independent high-side drivers, or as a half-bridge pair. Unused inputs (INA/INB) should be tied to GND for noise immunity; unused outputs can remain unconnected. The EN pin controls both channels simultaneously, and DT pin behavior applies only when both channels are actively driven. This versatility makes the UCC21530DWK suitable for diverse topologies without redesign - confirmed in the UCC21530DWK functional description section.
UCC21530DWK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Driven Configuration:
- Half-Bridge
- Channel Type:
- Independent
- Number of Drivers:
- 2
- Gate Type:
- IGBT, N-Channel, P-Channel MOSFET
- Voltage - Supply:
- 3V ~ 18V
- Logic Voltage - VIL, VIH:
- 1.2V, 1.6V
- Current - Peak Output (Source, Sink):
- 4A, 6A
- Input Type:
- CMOS/TTL
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- 6ns, 7ns
- Operating Temperature:
- -40°C ~ 130°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
UCC21530DWK FAQ
1.How can I place an order for UCC21530DWK through Aetrix?
Please submit a Request for Quotation (RFQ) for UCC21530DWK 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 UCC21530DWK reliable?
The price and inventory of UCC21530DWK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCC21530DWK is usually 5 days.
3.What payment methods are accepted for UCC21530DWK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCC21530DWK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCC21530DWK?
UCC21530DWK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCC21530DWK 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 UCC21530DWK?
For technical support, including UCC21530DWK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCC21530DWK requirements.
6.How does Aetrix verify that UCC21530DWK is sourced from the original manufacturer or authorized distributors?
All UCC21530DWK 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 UCC21530DWK meets industry standards.
7.What is the process for return or replacement of UCC21530DWK?
All UCC21530DWK units undergo pre-shipment inspection (PSI). If there is an issue with UCC21530DWK, 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 UCC21530DWK part is unused and in its original packaging.
Return procedure for UCC21530DWK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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