Overview
The UCC21540DWKR, manufactured by Texas Instruments, is a high-performance, dual-channel, isolated gate driver designed for driving power MOSFETs, IGBTs, and GaN transistors. This component is housed in a SOP-14 package and is widely recognized for its robust isolation capabilities and versatile configuration options. It is particularly suited for applications requiring high reliability and safety, such as industrial automation, automotive systems, and power supplies. The UCC21540DWKR stands out for its high peak output current, fast switching performance, and excellent noise immunity, making it a competitive choice in the market.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Peak Output Current (Source/Sink) | 4/6 | A | |
| Isolation Voltage | 5.7 | kVrms | |
| Channel-to-Channel Spacing | 3.3 | mm | DWK package |
| Common Mode Transient Immunity (CMTI) | 100 | V/ns | Minimum |
| Propagation Delay | 33 | ns | Typical |
| Input Voltage Range | 3 to 5.5 | V | |
| Output Drive Voltage (VDD) | Up to 18 | V | |
| UVLO Protection | 8 | V |
Key Features
- High peak output current for driving power transistors effectively.
- Excellent isolation capabilities ensuring safety and reliability in high voltage applications.
- Configurable as low-side, high-side, or half-bridge drivers for versatile application use.
- High common mode transient immunity (CMTI) for stable operation in noisy environments.
- Integrated protection features including UVLO and programmable dead time.
Applications
The UCC21540DWKR is extensively used in various high-power and high-reliability applications. In industrial automation, it drives IGBTs and MOSFETs in motor control systems and power inverters. In the automotive sector, it is employed in electric vehicle power systems and battery management systems. Additionally, it finds applications in renewable energy systems like solar inverters and in various power supply units, ensuring efficient and safe power conversion.
Q & A
What is the maximum isolation voltage of UCC21540DWKR?
The maximum isolation voltage is 5.7 kVrms.
Can UCC21540DWKR drive GaN transistors?
Yes, it is capable of driving GaN transistors along with MOSFETs and IGBTs.
What is the typical propagation delay of UCC21540DWKR?
The typical propagation delay is 33 ns.
How is UCC21540DWKR configured in applications?
It can be configured as two low-side drivers, two high-side drivers, or a half-bridge driver.
What is the significance of CMTI in UCC21540DWKR?
CMTI (Common Mode Transient Immunity) ensures stable operation by resisting noise in high-speed switching environments.
What are the UVLO protection features in UCC21540DWKR?
It includes UVLO (Under Voltage Lock Out) protection at 8V to prevent operation at insufficient voltage levels.
What is the input voltage range for UCC21540DWKR?
The input voltage ranges from 3V to 5.5V.
What package does UCC21540DWKR come in?
It comes in a SOP-14 package.
What is the peak output current of UCC21540DWKR?
The peak output current is 4A source and 6A sink.
What applications is UCC21540DWKR suitable for?
It is suitable for industrial automation, automotive systems, and renewable energy applications.
