Overview
The UCC21520-Q1 is an isolated dual-channel gate driver designed by Texas Instruments. It is engineered to drive power MOSFETs, IGBTs, and SiC MOSFETs up to 5MHz. This component features a 4A source and 6A sink peak current, making it suitable for high-efficiency and high-power density applications. The UCC21520-Q1 is particularly qualified for automotive applications and is AEC-Q100 certified, ensuring robust performance and reliability in demanding environments.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 16-SOIC (DW) |
| Operating Temperature Range (°C) | -40 to 125 |
| Peak Output Current (A) | 4A source, 6A sink |
| Input VCCI Range (V) | 3 to 18 |
| Output VDD Supply Voltage (V) | Up to 25 |
| Propagation Delay Time (ns) | Typical 33ns |
| Pulse Width (ns) | Minimum 20ns |
| Pulse-Width Distortion (ns) | Maximum 6ns |
| Common-Mode Transient Immunity (CMTI) | Greater than 125V/ns |
| Isolation Barrier Life | >40 years |
| Isolation Voltage (Vrms) | 5.7kV |
| Transient Isolation Voltage (VPK) | 8kV |
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.
- Wide input VCCI range from 3V to 18V to interface with both analog and digital controllers.
- Under voltage lock-out (UVLO) protection for supply voltage pins.
- Reinforced isolation barrier with 5.7kVRMS and transient isolation voltage up to 8kV.
- Internal functional isolation between the two secondary-side drivers allows a working voltage of up to 1500VDC.
- Safety-related certifications including UL 1577, CSA, and CQC per GB4943.1-2022.
Applications
The UCC21520-Q1 is designed for various high-power and high-efficiency applications, including:
- Automotive systems: Suitable for driving power MOSFETs, IGBTs, and SiC MOSFETs in automotive environments.
- Power supplies: Ideal for DC-DC converters and power supplies requiring high isolation and robust performance.
- Industrial control systems: Used in industrial applications where high reliability and efficiency are crucial.
- Renewable energy systems: Applicable in solar and wind power systems that require efficient and reliable power management.
Q & A
- What is the UCC21520-Q1 used for?
The UCC21520-Q1 is an isolated dual-channel gate driver used to drive power MOSFETs, IGBTs, and SiC MOSFETs in various high-power applications. - What are the key certifications of the UCC21520-Q1?
The UCC21520-Q1 is AEC-Q100 certified, and it also meets safety standards such as UL 1577, CSA, and CQC per GB4943.1-2022. - What is the peak output current of the UCC21520-Q1?
The UCC21520-Q1 has a peak output current of 4A source and 6A sink. - What is the operating temperature range of the UCC21520-Q1?
The operating temperature range is -40°C to 125°C. - What is the isolation voltage of the UCC21520-Q1?
The isolation voltage is 5.7kVRMS with a transient isolation voltage up to 8kV. - Can the UCC21520-Q1 be configured in different driver modes?
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 input VCCI range of the UCC21520-Q1?
The input VCCI range is from 3V to 18V. - Does the UCC21520-Q1 have under voltage lock-out (UVLO) protection?
Yes, all supply voltage pins have UVLO protection. - What is the maximum output VDD supply voltage for the UCC21520-Q1?
The maximum output VDD supply voltage is up to 25V. - What safety features does the UCC21520-Q1 include?
The UCC21520-Q1 includes features such as fast disable for power sequencing and primary-side logic failures forcing both outputs low as a fail-safe measure.
