UCC21540DWK Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
UCC21540DWK is a dual-channel, high-side and low-side IGBT/MOSFET gate driver from Texas Instruments designed for half-bridge power topologies. It features reinforced isolation, 4 A source and 6 A sink peak drive currents, and Schmitt trigger inputs for robust noise immunity. Ideal for industrial motor drives, solar inverters, and EV traction inverter designs.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- UCC21540DWK Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of UCC21540DWK?
- Dual-channel half-bridge IGBT/MOSFET driver with 4 A source / 6 A sink peak currents
- Reinforced galvanic isolation up to 5.7 kVrms
- Schmitt trigger inputs for high noise immunity in switching environments
- Propagation delay matched to within 5 ns between channels
- UVLO protection on both high-side and low-side outputs
- 14-pin SOIC package with RoHS e4-compliant finish
What is UCC21540DWK used for?
The UCC21540DWK drives IGBT and SiC/GaN MOSFET switches in three-phase industrial motor drives and grid-tied solar inverters operating at bus voltages up to 1200 V. Its reinforced isolation makes it suitable for EV traction inverters and on-board chargers requiring IEC 60950 or IEC 62368 safety compliance. The matched propagation delay between channels also benefits LLC resonant converters and phase-shifted full-bridge power supplies.
What are the specifications of UCC21540DWK?
| Pbfree Code | Yes |
| YTEOL | 0 |
| High Side Driver | YES |
| Input Characteristics | SCHMITT TRIGGER |
| Interface IC Type | HALF BRIDGE BASED IGBT/MOSFET DRIVER |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Number of Channels | 2 |
| Number of Functions | 1 |
| Output Characteristics | STANDARD |
| Output Current-Max | 6A |
| Output Peak Current Limit-Nom | 4A |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14/16,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Current-Max | 4.2mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3.3V |
| Supply Voltage1-Max | 18V |
| Supply Voltage1-Min | 9.2V |
| Supply Voltage1-Nom | 12V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Turn-off Time | 0.04 µs |
| Turn-on Time | 0.04 µs |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Taiwan |
Where can I find the UCC21540DWK datasheet?
UCC21540DWK Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for UCC21540DWK?
Compatible alternatives and drop-in replacements for UCC21540DWK:
Frequently Asked Questions
What peak gate drive current can the UCC21540DWK deliver to IGBT switches?
The UCC21540DWK provides 4 A source and 6 A sink peak gate drive current, enabling fast turn-on and turn-off of large IGBT and SiC MOSFET devices. This strong drive capability reduces switching losses at frequencies up to 1 MHz in resonant and hard-switching topologies.
How much galvanic isolation does the UCC21540DWK provide, and which safety standards does it meet?
The UCC21540DWK offers reinforced isolation rated at 5.7 kVrms, suitable for designs requiring compliance with IEC 60950 and IEC 62368. This isolation level protects low-voltage control circuits from 1200 V bus voltages found in industrial motor drives and EV traction inverters.
Can UCC21540DWK drive SiC MOSFETs as well as standard IGBTs in high-frequency inverters?
Yes, UCC21540DWK is designed to drive both IGBT and SiC MOSFET devices. The 6 A sink current and matched propagation delay of within 5 ns between channels make it effective for SiC inverters switching above 100 kHz, where precise timing prevents shoot-through in half-bridge stages.
What protection mechanisms prevent damage to the UCC21540DWK during power-up or supply transients?
The UCC21540DWK integrates undervoltage lockout (UVLO) on both the high-side and low-side driver outputs. UVLO prevents the gate driver from turning on the power switch until the supply voltage reaches a safe threshold, protecting IGBTs and MOSFETs from incomplete gate enhancement during supply ramp-up or brownout events.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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