Overview
The UCC21540DW, manufactured by Texas Instruments, is a high-performance, dual-channel isolated gate driver designed for power electronics applications. This model is part of TI's UCC21540 series, which is widely recognized for its robustness and reliability in driving MOSFETs, IGBTs, and other power devices. The UCC21540DW is particularly suited for industrial, automotive, and renewable energy systems, offering enhanced safety and efficiency. Its unique selling points include high common-mode transient immunity (CMTI), low propagation delay, and a wide operating temperature range, making it a competitive choice in demanding environments.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage (VDD) | 18 | V | Max |
| Propagation Delay | 33 | ns | Typical |
| Common-Mode Transient Immunity (CMTI) | >125 | V/ns | Min |
| Operating Temperature Range | -40 to 150 | °C | |
| Output Current (Peak) | 4 | A | |
| Isolation Voltage | 5 | kVrms |
Key Features
- High CMTI (>125 V/ns) ensures reliable operation in noisy environments.
- Low propagation delay (33 ns typical) for precise switching control.
- Wide operating temperature range (-40°C to 150°C) for harsh conditions.
- Dual-channel design with independent control for flexibility.
- Complies with AEC-Q100 standards for automotive applications.
Applications
The UCC21540DW is ideal for a variety of applications, including industrial motor drives, solar inverters, uninterruptible power supplies (UPS), and electric vehicle (EV) power systems. Its high isolation voltage and robust performance make it suitable for safety-critical applications, while its dual-channel design allows for efficient control of multiple power devices. In automotive systems, it is used in battery management systems (BMS) and traction inverters, ensuring reliable and efficient power conversion.
Q & A
1. What is the maximum supply voltage for the UCC21540DW?
The maximum supply voltage (VDD) for the UCC21540DW is 18V.
2. What is the typical propagation delay of the UCC21540DW?
The typical propagation delay is 33 ns.
3. Is the UCC21540DW suitable for automotive applications?
Yes, it complies with AEC-Q100 standards, making it suitable for automotive applications.
4. What is the operating temperature range of the UCC21540DW?
The operating temperature range is -40°C to 150°C.
5. Does the UCC21540DW support dual-channel operation?
Yes, it features dual-channel operation with independent control.
6. What is the common-mode transient immunity (CMTI) of the UCC21540DW?
The CMTI is greater than 125 V/ns.
7. What is the peak output current of the UCC21540DW?
The peak output current is 4A.
8. What is the isolation voltage of the UCC21540DW?
The isolation voltage is 5 kVrms.
9. Can the UCC21540DW be used in solar inverters?
Yes, it is suitable for solar inverters and other renewable energy systems.
10. What are the key safety features of the UCC21540DW?
It offers high CMTI, low propagation delay, and wide temperature range, ensuring reliable and safe operation in demanding environments.
