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Texas Instruments UCC21530DWKR
- Part No.:
- UCC21530DWKR
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 14-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
UCC21530DWKR.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:6,237
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Product details
Overview
UCC21530DWKR from Texas Instruments is a reinforced-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 per channel, features 5.7kVRMS isolation with >125V/ns CMTI, and supports programmable dead time up to 600ns - enabling robust half-bridge operation in solar inverters and EV charging systems.
For engineers reviewing the UCC21530DWKR datasheet, UCC21530DWKR pinout, UCC21530DWKR application, or UCC21530DWKR equivalent, key selection criteria include its 3.3mm channel-to-channel spacing, SOIC-14 (DWK) package with internal functional isolation, dual independent secondary-side supplies (VDDA/VSSA and VDDB/VSSB), and compatibility with 3–18V logic inputs driving up to 25V output rails.
Technical Context
The UCC21530DWKR implements galvanic isolation via a silicon-dioxide-based barrier rated for 5.7kVRMS (1 min) and 8000VPK reinforced insulation, supporting working voltages up to 1850V between secondary-side grounds (VSSA–VSSB). Its dual-output architecture allows independent configuration as dual low-side, dual high-side, or half-bridge drivers with programmable overlap/dead time via external resistor on the DT pin.
Each channel includes under-voltage lockout (UVLO) on both primary (VCCI: 2.55–2.85V rising threshold) and secondary (VDDA/VDDB: 8V or 12V UVLO variants) supplies, plus fail-safe logic that forces both outputs low upon primary-side failure. Propagation delay matching is ≤6.5ns over temperature, and pulse-width distortion is limited to 6ns max.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5.7kVRMS for 1 minute (UL 1577); 8000VPK reinforced (DIN EN IEC 60747-17) |
| Output Drive Strength | 4A peak source / 6A peak sink per channel - sufficient for fast switching of 1200V SiC MOSFETs at ≤5MHz |
| Propagation Delay | 33ns typical (INx to OUTx), with ≤6ns pulse-width distortion - enables precise timing-critical half-bridge control |
| CMTI | >125V/ns - maintains signal integrity in high-dV/dt motor drive and inverter environments |
| Dead Time Range | Programmable 0–600ns via external RDT resistor - prevents shoot-through without requiring controller-level dead-time insertion |
| Supply Voltage Ranges | VCCI: 3–18V (TTL/CMOS compatible); VDDA/VDDB: 9.2–25V (8V UVLO) or 13.5–25V (12V UVLO) |
| Operating Temperature | –40°C to +150°C junction - supports placement near power stages in industrial and automotive-grade systems |
Pinout & Package
UCC21530DWKR uses the wide-body SOIC-14 (DWK) package with 10.30mm × 7.50mm body size and 3.3mm minimum creepage/clearance between isolated channels. The package provides reinforced isolation and supports surface-mount assembly with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA, INB | Primary-side digital input | TTL/CMOS-compatible control signals for channels A and B; internally pulled low when floating |
| EN | Global enable input | Active-high shutdown: pulls both outputs low when low; recommended tied to VCCI if unused |
| DT | Dead time configuration | Resistor-to-GND sets dead time (10×RDT kΩ = ns); shorted to VCCI disables dead time for overlap |
| OUTA, OUTB | Secondary-side gate drive outputs | High-current outputs referenced to VSSA/VSSB - directly drive FET/IGBT gates with low ROL (0.55Ω) |
| VCCI | Primary-side logic supply | 3–18V input rail with UVLO; pins 3 and 8 are internally shorted for decoupling flexibility |
| VDDA, VDDB | Secondary-side driver supplies | Independent 9.2–25V rails per channel; each has dedicated UVLO and local decoupling requirement |
| VSSA, VSSB | Secondary-side ground references | Functionally isolated grounds - support up to 1850V working voltage difference (VSSA–VSSB) |
| GND | Primary-side ground reference | Reference for all primary-side signals (INA, INB, EN, DT, VCCI); must be separated from VSSA/VSSB |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel functional isolation | Enables independent high-side and low-side drive with 1850V VSSA–VSSB working voltage - eliminates need for bootstrap or isolated DC/DC per channel |
| Programmable dead time | Hardware-based dead time adjustment (0–600ns) via single external resistor - reduces firmware complexity and improves reliability vs. controller-based timing |
| High CMTI & reinforced isolation | 125V/ns transient immunity and 5.7kVRMS isolation - meets safety requirements for industrial motor drives and grid-tied inverters |
| Fail-safe output logic | Primary-side fault detection forces both outputs low within <2µs - prevents shoot-through during MCU lockup or supply brownout |
| Wide VCCI input range | 3–18V logic compatibility - interfaces directly with 3.3V microcontrollers, 5V analog controllers, and 12V industrial PLCs without level-shifting |
Applications
| Solar String Inverters | EV DC Fast Charging Piles |
|---|---|
|
Use Scenario: Driving SiC half-bridge modules in MPPT-enabled string inverters operating at 100kHz+ switching frequencies under outdoor thermal stress. IC Role / Device Role / Timing Role: Isolated dual-channel gate driver providing independent, noise-immune control of high-side and low-side SiC MOSFETs with hardware-programmed dead time. Use Value: 125V/ns CMTI prevents false triggering during rapid bus transients; 150°C max junction rating supports compact heatsink integration. |
Use Scenario: Controlling bidirectional AC/DC and DC/DC stages in liquid-cooled 150–350kW EV chargers with strict functional safety requirements. IC Role / Device Role / Timing Role: Reinforced-isolated gate driver enabling safe, high-efficiency switching of 1200V IGBTs and SiC devices in interleaved topologies. Use Value: 8000VPK reinforced isolation and UL/IEC/VDE safety certifications satisfy IEC 62477-1 and ISO 6469-3 compliance for high-voltage charging systems. |
| Industrial AC Servo Drives | Energy Storage System (ESS) Bi-directional Converters |
|
Use Scenario: Gate-driving 650V/1200V IGBTs in three-phase motor drives where EMI immunity and timing precision impact torque ripple and acoustic noise. IC Role / Device Role / Timing Role: Dual-channel isolated driver configured as three half-bridges (using two UCC21530DWKR per phase) with matched propagation delay for vector control. Use Value: ≤6.5ns propagation delay matching ensures <1° phase error across PWM cycles - critical for field-oriented control accuracy. |
Use Scenario: Managing bi-directional power flow in 1000V-class battery energy storage systems using dual-active-bridge (DAB) or three-level NPC topologies. IC Role / Device Role / Timing Role: Isolated gate driver for high-side and low-side switches in high-voltage DC/DC converters, supporting synchronous rectification and soft-switching schemes. Use Value: Independent VDDA/VSSA and VDDB/VSSB supplies allow separate biasing of primary and secondary converter legs - simplifying auxiliary supply design. |
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 only 35V max VDD; no programmable dead time; 100ns typ. propagation delay | Limited to ≤400V bus applications; requires external dead-time circuitry; lower CMTI (100V/ns) | Choose for cost-sensitive, lower-voltage (<600V) designs where TI's safety certifications are not required. |
| ADUM4223BRIZ | 5kVRMS isolation (UL/CSA), 4A/6A drive, fixed 100ns dead time; 50ns max propagation delay; no independent VSSA/VSSB | Single shared secondary ground limits topology flexibility; lacks 1850V VSSA–VSSB rating; no adjustable dead time | Choose when board space is constrained and functional isolation (not reinforced) suffices for ≤1000V systems. |
Compared with Si8273BD-D-IS and ADUM4223BRIZ, the UCC21530DWKR provides higher isolation voltage (5.7kVRMS), certified reinforced insulation, programmable dead time, and true functional isolation between secondary grounds - making it uniquely suitable for 1000V+ industrial and EV infrastructure applications demanding full safety compliance.
Availability
UCC21530DWKR is available at Aetrix Electronics and suitable for solar inverters, EV charging infrastructure, and industrial servo drives requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for safety-critical designs.
Supply support for UCC21530DWKR 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 power management technologies, with decades of expertise in high-reliability isolation and gate driver innovation.
The UCC21530DWKR belongs to TI's reinforced-isolated gate driver product line, engineered specifically for high-voltage power conversion systems requiring certified safety, high CMTI, and flexible topology support - including SiC and GaN-based designs.
FAQ
What is the maximum working voltage between VSSA and VSSB for UCC21530DWKR?
The UCC21530DWKR supports a maximum working voltage of 1850V between VSSA and VSSB due to internal functional isolation between its two secondary-side grounds. This enables use in split-rail or multi-level converter topologies where independent secondary grounds are required, and is validated per DIN EN IEC 60747-17 (VDE 0884-17) reinforced insulation standards. The UCC21530DWKR datasheet specifies this rating in Section 5.1 Absolute Maximum Ratings.
Does UCC21530DWKR support both 8V and 12V UVLO variants, and how do I identify which one I have?
Yes, UCC21530DWKR is manufactured in two UVLO variants: 8V and 12V versions, distinguished by part number suffixes (e.g., UCC21530BDWKR = 8V UVLO; UCC21530CDWKR = 12V UVLO). The UCC21530DWKR part number itself refers to the base device family; actual ordering requires selecting the correct variant. UVLO thresholds are specified in Section 5.8 Electrical Characteristics - for example, the 8V variant has VVDDA_ON = 7.7–8.9V, while the 12V variant has VVDDA_ON = 11.7–13.3V.
Can UCC21530DWKR drive SiC MOSFETs at 5MHz, and what layout considerations are critical?
Yes, the UCC21530DWKR is explicitly rated to drive IGBTs, Si MOSFETs, and SiC MOSFETs up to 5MHz, as stated in the official description. To achieve reliable 5MHz operation, layout must minimize parasitic inductance: place 1µF ceramic decoupling capacitors within 3mm of VDDA/VSSA and VDDB/VSSB pins; use solid ground planes beneath secondary-side traces; maintain ≥3.3mm clearance between primary and secondary sides; and route high-speed INA/INB traces away from noisy power loops. These guidelines are detailed in Section 10 Layout of the UCC21530DWKR datasheet.
How is dead time programmed on UCC21530DWKR, and what is the minimum achievable value?
Dead time on UCC21530DWKR is programmed by connecting an external resistor (RDT) between the DT pin and GND, with DT (ns) ≈ 10 × RDT (kΩ). Values range from 80ns (RDT = 10kΩ) to 600ns (RDT = 50kΩ). Tying DT to VCCI disables dead time entirely, allowing output overlap - useful for synchronous rectification or specialized modulation schemes. The UCC21530DWKR does not support sub-80ns programmable dead time; minimum guaranteed dead time with RDT = 10kΩ is 80ns per Section 5.9.
What safety certifications apply to UCC21530DWKR, and are they production-tested?
The UCC21530DWKR carries planned certifications including UL 1577 (5.7kVRMS, 1-minute test), DIN EN IEC 60747-17 (VDE 0884-17) for 8000VPK reinforced isolation, and CQC GB4943.1-2022. These are not "planned" in the marketing sense - they are qualified and production-tested per TI's certification documentation (SLUSDC0D). The 5.7kVRMS rating is 100% production-tested at 6840VRMS for 1 second; the 8000VPK rating is qualification-tested per VDE 0884-17 Annex D. Full certification reports are available from Texas Instruments upon request for UCC21530DWKR.
UCC21530DWKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.295", 7.50mm 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, 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
UCC21530DWKR FAQ
1.How can I place an order for UCC21530DWKR through Aetrix?
Please submit a Request for Quotation (RFQ) for UCC21530DWKR 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 UCC21530DWKR reliable?
The price and inventory of UCC21530DWKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCC21530DWKR is usually 5 days.
3.What payment methods are accepted for UCC21530DWKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCC21530DWKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCC21530DWKR?
UCC21530DWKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCC21530DWKR 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 UCC21530DWKR?
For technical support, including UCC21530DWKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCC21530DWKR requirements.
6.How does Aetrix verify that UCC21530DWKR is sourced from the original manufacturer or authorized distributors?
All UCC21530DWKR 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 UCC21530DWKR meets industry standards.
7.What is the process for return or replacement of UCC21530DWKR?
All UCC21530DWKR units undergo pre-shipment inspection (PSI). If there is an issue with UCC21530DWKR, 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 UCC21530DWKR part is unused and in its original packaging.
Return procedure for UCC21530DWKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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