Overview
The UCC21520ADWR is an isolated dual-channel gate driver produced by Texas Instruments. It is designed to drive power MOSFETs, IGBTs, and SiC MOSFETs up to 5MHz, making it suitable for high-frequency power applications. The device features a 5.7kVRMS reinforced isolation barrier between the input and output drivers, ensuring high isolation and reliability. It also offers programmable dead time and configurable driver modes, including two low-side drivers, two high-side drivers, or a half-bridge driver configuration.
Key Specifications
| Parameter | Value |
|---|---|
| Peak Source Current | 4A |
| Peak Sink Current | 6A |
| Isolation Voltage | 5.7kVRMS |
| Common-Mode Transient Immunity (CMTI) | 125V/ns |
| Maximum Operating Frequency | Up to 5MHz |
| VDD Supply Voltage Range | Up to 25V |
| VCCI Input Voltage Range | 3V to 18V |
| Propagation Delay | 33ns (typical) |
| Pulse Width Distortion | 6ns (maximum) |
| Package Type | 16-SOIC (DW) |
| Operating Temperature Range | -40°C to 125°C |
| Junction Temperature Range | -40°C to 150°C |
Key Features
- Isolated dual-channel gate driver with 5.7kVRMS reinforced isolation barrier.
- Programmable dead time and configurable driver modes (two low-side, two high-side, or half-bridge).
- Wide input VCCI range from 3V to 18V for compatibility with both analog and digital controllers.
- VDD supply voltage up to 25V with under voltage lock-out (UVLO) protection.
- High common-mode transient immunity (CMTI) of 125V/ns.
- Fast disable pin for power sequencing and fail-safe operation.
- Surge immunity up to 10kV.
- Internal functional isolation between the two secondary-side drivers allows a working voltage of up to 1500VDC.
Applications
The UCC21520ADWR is suitable for a wide variety of power applications, including but not limited to:
- Power supplies and DC-DC converters.
- Motor drives and control systems.
- Renewable energy systems such as solar and wind power.
- Industrial automation and control systems.
- High-frequency power conversion systems.
Q & A
- What is the peak current capability of the UCC21520ADWR?
The UCC21520ADWR has a peak source current of 4A and a peak sink current of 6A. - What is the maximum operating frequency of the UCC21520ADWR?
The device can operate up to 5MHz. - What is the isolation voltage of the UCC21520ADWR?
The isolation voltage is 5.7kVRMS. - What is the common-mode transient immunity (CMTI) of the UCC21520ADWR?
The CMTI is greater than 125V/ns. - What are the possible configurations of the UCC21520ADWR drivers?
The drivers can be configured as two low-side drivers, two high-side drivers, or a half-bridge driver with programmable dead time. - What is the VDD supply voltage range for the UCC21520ADWR?
The VDD supply voltage range is up to 25V. - What is the input VCCI voltage range for the UCC21520ADWR?
The input VCCI voltage range is from 3V to 18V. - Does the UCC21520ADWR have under voltage lock-out (UVLO) protection?
Yes, all supply voltage pins have UVLO protection. - What is the package type of the UCC21520ADWR?
The package type is 16-SOIC (DW). - What is the operating temperature range of the UCC21520ADWR?
The operating temperature range is -40°C to 125°C.
