Overview
The UCC21520-Q1 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. This device features a 4A source and 6A sink peak current, making it suitable for high-power applications. The input side is isolated from the two output drivers by a 5.7kVRMS reinforced isolation barrier, ensuring high reliability and safety. The UCC21520-Q1 is AEC-Q100 qualified and meets various safety standards, including CSA and CQC certifications, making it ideal for automotive and other demanding environments.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | SOIC-16 |
| Pins | 16 |
| Operating Temperature Range (°C) | -40 to 125 |
| Peak Source Current | 4A |
| Peak Sink Current | 6A |
| Isolation Voltage | 5.7kVRMS |
| Common-Mode Transient Immunity (CMTI) | > 125V/ns |
| Propagation Delay (Typical) | 33ns |
| Minimum Pulse Width | 20ns |
| Maximum Pulse-Width Distortion | 6ns |
| VDD Supply Voltage Range | Up to 25V |
| VCCI Input Voltage Range | 3V to 18V |
| UVLO Options | 5V and 8V |
Key Features
- Qualified for automotive applications with AEC-Q100 certification and device temperature grade 1.
- Functional safety quality-managed and junction temperature range of –40 to +150°C.
- Programmable overlap and dead time, and fast disable for power sequencing.
- Internal functional isolation between the two secondary-side drivers allows a working voltage of up to 1500VDC.
- Safety-related certifications including 8000VPK reinforced isolation per DIN EN IEC 60747-17 and CSA certification per IEC 60950-1, IEC 62368-1, IEC 61010-1, and IEC 60601-1 end equipment standards.
- Wide input VCCI range from 3V to 18V to interface with both analog and digital controllers.
Applications
The UCC21520-Q1 is primarily designed for automotive applications but is also suitable for other high-power and high-reliability environments. These include:
- Electric vehicles and hybrid electric vehicles
- Industrial power systems
- Renewable energy systems
- High-power DC-DC converters
Q & A
- What is the peak current capability of the UCC21520-Q1?
The UCC21520-Q1 has a peak source current of 4A and a peak sink current of 6A. - What is the isolation voltage of the UCC21520-Q1?
The isolation voltage is 5.7kVRMS. - What is the typical propagation delay of the UCC21520-Q1?
The typical propagation delay is 33ns. - What are the UVLO options for the VDD supply voltage?
The UVLO options are 5V and 8V. - Is the UCC21520-Q1 suitable for automotive applications?
Yes, it is AEC-Q100 qualified and designed for automotive use. - What is the maximum working voltage between the secondary-side drivers?
The maximum working voltage is up to 1500VDC. - Does the UCC21520-Q1 have safety-related certifications?
Yes, it has various safety certifications including CSA and CQC certifications. - What is the input VCCI voltage range of the UCC21520-Q1?
The input VCCI voltage range is from 3V to 18V. - Can the UCC21520-Q1 be configured as different types of drivers?
Yes, it can be configured as two low-side drivers, two high-side drivers, or a half-bridge driver with programmable dead time. - What is the purpose of the disable pin on the UCC21520-Q1?
The disable pin shuts down both outputs simultaneously and allows normal operation when left open or grounded.
