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Texas Instruments UCC21222DR
- Part No.:
- UCC21222DR
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
UCC21222DR.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,367
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Product details
Overview
UCC21222 from Texas Instruments is an isolated dual-channel gate driver IC designed for high-reliability power stage control in SiC, GaN, and IGBT-based systems. It delivers 4A peak source / 6A peak sink output current, supports 3kVRMS isolation with >125V/ns CMTI, operates across –40°C to +150°C, and enables half-bridge, dual high-side, or dual low-side configurations - used in on-board battery chargers and high-voltage DC-DC converters.
For engineers reviewing the UCC21222 datasheet, UCC21222 pinout, UCC21222 application, or UCC21222 equivalent, key selection criteria include its programmable dead time (via external resistor), dual independent UVLO (8V option), fast disable functionality, and SOIC-16 package with reinforced galvanic isolation meeting UL 1577 and VDE 0884-17 standards.
Technical Context
The UCC21222 integrates two independent isolated driver channels with separate secondary-side supplies (VDDA/VSSA and VDDB/VSSB), each capable of driving power transistors up to 25V. Its input side (VCCI/GND) is galvanically isolated from both outputs via a 3kVRMS barrier, enabling safe operation in high dv/dt environments.
It features resistor-programmable dead time (RDT = 0–100 kΩ), integrated deglitch filtering (rejects <5 ns transients), and fast disable (DIS pin) that simultaneously shuts down both outputs with ≤80 ns response. All supplies - VCCI, VDDA, and VDDB - include UVLO protection with hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation rating | 3000 VRMS for 1 minute (UL 1577); 4242 VPK per VDE 0884-17 - ensures safety compliance in industrial and automotive HV systems |
| Peak output current | 4 A source / 6 A sink - sufficient to drive high-Qg SiC MOSFETs and IGBTs at high switching frequencies |
| Propagation delay | 33 ns typical (low-to-high & high-to-low) - enables precise timing control in >1 MHz power topologies |
| CMTI | >125 V/ns - maintains signal integrity during fast transient events in motor drives and EV chargers |
| VDD UVLO threshold | 8.5 V rising / 7.9 V falling (8V option) - prevents erratic gate drive during brownout conditions in DC-DC converters |
| Operating temperature | –40°C to +150°C junction - supports under-hood automotive HVAC and traction inverter auxiliary supplies |
| Dead time programming | Configurable via RDT: 0–150 Ω → interlock; 1.7–100 kΩ → 86–487 ns (at 25°C) - eliminates shoot-through without MCU intervention |
Pinout & Package
UCC21222 is housed in a 16-pin SOIC (D package) with creepage/clearance >4 mm and reinforced insulation. The package supports surface-mount assembly and meets IPC-7351B standard footprint requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA, INB | Primary-side digital inputs | TTL/CMOS-compatible; internally pulled low when floating - simplifies microcontroller interface without external pull-downs |
| DIS | Global disable control | Active-high shutdown of both outputs; internal pull-up - ensures fail-safe default-off state if left unconnected |
| DT | Dead time configuration | Resistor-selectable interlock function; floating or tied to VCCI disables dead time - enables flexible topology adaptation |
| VCCI | Primary-side supply | 3.0–5.5 V input bias rail; pins 3 & 8 internally shorted - allows dual-point decoupling for noise reduction |
| VDDA / VDDB | Secondary-side driver supplies | 9.2–25 V per channel; independent rails support asymmetrical gate drive voltages for SiC/GaN optimization |
| OUTA / OUTB | High-current gate drive outputs | Capable of 4A source / 6A sink into capacitive loads - directly drives gate resistors without external buffers |
| VSSA / VSSB | Secondary-side return paths | Independent grounds per channel - essential for accurate high-side referencing and CMTI robustness |
| GND | Primary-side reference | Single-point ground for all logic-side signals - critical for minimizing ground bounce in noisy ECU environments |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated output channels | Independent VDDA/VSSA and VDDB/VSSB supplies enable asymmetric gate drive and true high-side operation without bootstrap limitations |
| Programmable dead time | External resistor (RDT) sets 0–487 ns dead time - eliminates need for MCU-based dead-time insertion and reduces firmware complexity |
| Integrated active pull-down | Forces OUTx to ≤2 V when VDDx is unpowered - prevents unintended turn-on during power sequencing or fault conditions |
| Fast disable with deglitching | DIS pin response ≤80 ns with built-in RC filter recommendation (0–100 Ω + 100–1000 pF) - suppresses EMI-induced false triggers |
| Reinforced isolation certification | UL 1577 (3000 VRMS), VDE 0884-17 (4242 VPK), GB4943.1-2022 - qualifies for functional safety applications up to ASIL-B |
Applications
| On-board Battery Charger | High-Voltage DC-DC Converter |
|---|---|
|
Use Scenario: Bidirectional 3.3 kW OBC using SiC half-bridge inverters operating at 200 kHz. IC Role / Device Role / Timing Role: Dual-channel isolated gate driver controlling high-side and low-side SiC MOSFETs with synchronized dead time and fast disable during fault detection. Use Value: 125 V/ns CMTI prevents false triggering during 100 V/ns bus transients; 4A/6A drive strength ensures <50 ns switching transitions at 10 nF gate charge. |
Use Scenario: 800 V to 48 V isolated DC-DC converter in EV power distribution units. IC Role / Device Role / Timing Role: Half-bridge driver with independent VDDA/VDDB supplies enabling optimized 15 V high-side and 12 V low-side gate biasing. Use Value: Programmable dead time (via 20 kΩ RDT) sets 185 ns minimum interval - eliminates shoot-through while maintaining >97% efficiency at full load. |
| Automotive HVAC Inverter | Body Electronics Motor Control |
|
Use Scenario: 400 V HVAC compressor inverter with thermal derating to 150°C junction temperature. IC Role / Device Role / Timing Role: Dual high-side driver configuration powering three-phase IGBT legs with shared DIS pin for system-level fault shutdown. Use Value: –40°C to +150°C operation ensures reliability in engine bay environments; 8V UVLO prevents gate oscillation during cold cranking dips. |
Use Scenario: 24 V seat/mirror actuator control with PWM-driven H-bridge using discrete MOSFETs. IC Role / Device Role / Timing Role: Dual low-side driver with TTL-compatible INA/INB inputs and fast disable for emergency stop functionality. Use Value: Internal pull-down on INA/INB guarantees known off-state at power-up; 33 ns propagation delay enables 500 kHz closed-loop position control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated dual-channel gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC21520DW | Higher 5-A source / 6-A sink; 5-kVRMS isolation; integrated Miller clamp; no programmable DT pin | Better suited for high-power traction inverters requiring active Miller clamping and higher isolation | Select UCC21520DW when shoot-through prevention demands hardware-level Miller clamping and >3.75 kVRMS isolation is required |
| ADUM4223BRWZ | 2-A source / 4-A sink; 5-kVRMS isolation; fixed 100 ns dead time; no independent VDDA/VDDB supplies | Targeted at lower-power industrial motor drives where fixed dead time and lower drive strength suffice | Choose ADUM4223BRWZ for cost-sensitive 200 W–1 kW applications where dual independent secondary supplies are unnecessary |
Compared with UCC21222, UCC21520DW offers enhanced isolation and Miller clamping but lacks resistor-programmable dead time, while ADUM4223BRWZ provides higher isolation voltage but sacrifices drive strength, independent secondary supplies, and dead time flexibility - making UCC21222 optimal for mid-power SiC/GaN designs requiring configurability and thermal robustness.
Availability
UCC21222 is available at Aetrix Electronics and suitable for on-board battery chargers, high-voltage DC-DC converters, and automotive HVAC systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for UCC21222 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 over 90 years of innovation in industrial, automotive, and communications markets.
The UCC21222 belongs to TI's high-performance isolated gate driver product line, engineered specifically for next-generation wide-bandgap power systems demanding high CMTI, extended temperature operation, and flexible configuration in space-constrained EV and renewable energy applications.
FAQ
What is the maximum recommended VDD supply voltage for UCC21222?
The absolute maximum VDDA and VDDB supply voltage for UCC21222 is 30 V, but the recommended operating range is 9.2 V to 25 V. Operating above 25 V may exceed safe power dissipation limits and reduce reliability - TI specifies 25 V as the upper limit for continuous operation with proper thermal design and PCB layout.
Does UCC21222 support half-bridge configuration with shared high-side and low-side gate drive?
Yes, UCC21222 supports half-bridge configuration by connecting OUTA to the high-side switch gate and OUTB to the low-side switch gate, with VSSA referenced to the switch node and VSSB to system ground. Its independent VDDA/VSSA and VDDB/VSSB supplies enable true high-side drive without bootstrap capacitor limitations - a core capability confirmed in the device description and Figure 8-1 of the datasheet.
How is dead time configured on UCC21222, and what resistor values yield 200 ns?
Dead time on UCC21222 is set by connecting a resistor (RDT) between the DT pin and GND. For ~200 ns dead time at 25°C, a 20 kΩ resistor is specified in the datasheet (DT(ns) = 8.6 × RDT(kΩ) + 13). This yields 185 ns nominal, with ±18 ns variation over temperature - verified in Figure 5-22 and Section 6.4.
What safety certifications does UCC21222 hold, and are they production-tested?
UCC21222 is certified to UL 1577 (3000 VRMS for 1 minute, 100% production test), DIN EN IEC 60747-17 / VDE 0884-17 (4242 VPK, qualification only), and GB4943.1-2022 (CQC). Per Section 5.6 and 11.3, the UL 1577 test is performed on every unit shipped, while VDE and CQC certifications are based on qualified sample batches per international safety standards.
Can UCC21222 drive both SiC MOSFETs and IGBTs effectively?
Yes, UCC21222 is explicitly designed to drive SiC MOSFETs, GaN HEMTs, and IGBTs - stated in the Description section and supported by its 4A/6A peak current, 25 V VDD capability, and 125 V/ns CMTI. Its fast 33 ns propagation delay and low 5 ns pulse-width distortion ensure precise timing control needed for high-frequency SiC switching and robust gate drive for IGBT saturation.
UCC21222DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm 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 MOSFET
- Voltage - Supply:
- 3V ~ 5.5V
- Logic Voltage - VIL, VIH:
- 1.25V, 1.6V
- Current - Peak Output (Source, Sink):
- 4A, 6A
- Input Type:
- CMOS/TTL
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- 5ns, 6ns
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
UCC21222DR FAQ
1.How can I place an order for UCC21222DR through Aetrix?
Please submit a Request for Quotation (RFQ) for UCC21222DR 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 UCC21222DR reliable?
The price and inventory of UCC21222DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCC21222DR is usually 5 days.
3.What payment methods are accepted for UCC21222DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCC21222DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCC21222DR?
UCC21222DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCC21222DR 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 UCC21222DR?
For technical support, including UCC21222DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCC21222DR requirements.
6.How does Aetrix verify that UCC21222DR is sourced from the original manufacturer or authorized distributors?
All UCC21222DR 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 UCC21222DR meets industry standards.
7.What is the process for return or replacement of UCC21222DR?
All UCC21222DR units undergo pre-shipment inspection (PSI). If there is an issue with UCC21222DR, 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 UCC21222DR part is unused and in its original packaging.
Return procedure for UCC21222DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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