Overview
The UCC21520-Q1 is an isolated dual-channel gate driver designed by Texas Instruments, specifically tailored for automotive applications. It features 4A source and 6A sink peak current, making it suitable for driving power MOSFETs, IGBTs, and SiC MOSFETs up to 5MHz. The device boasts a 5.7kVRMS reinforced isolation barrier with high common-mode transient immunity (CMTI) and internal functional isolation between the two secondary-side drivers, allowing for a working voltage of up to 1500VDC. This gate driver is AEC-Q100 qualified and includes various safety and functional features to ensure high efficiency, high power density, and robustness.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 16-SOIC (DW) |
| Pins | 16 |
| Operating Temperature Range (°C) | -40 to 125 |
| Peak Output Current | 4A source, 6A sink |
| Input VCCI Range | 3V to 18V |
| VDD Supply Voltage Range | 6.5V to 25V |
| Propagation Delay (tpLH / tpHL) | 30ns (max) |
| Pulse Width Distortion | 5ns (max) |
| Rise / Fall Time | 6ns / 7ns (typ) |
| Common Mode Transient Immunity (CMTI) | 125V/ns (min) |
| Isolation Voltage | 5.7kVRMS |
| Mounting Type | Surface Mount |
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.
- High common-mode transient immunity (CMTI) greater than 125V/ns and surge immunity up to 10kV.
- Isolation barrier life >40 years and programmable overlap and dead time.
- Fast disable for power sequencing and fail-safe measure forcing both outputs low on primary-side logic failures.
- 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.
- Configurable as two low-side drivers, two high-side drivers, or a half-bridge driver.
- Under voltage lock-out (UVLO) protection for all supply voltage pins.
Applications
The UCC21520-Q1 is primarily designed for automotive applications, including but not limited to:
- Electric vehicles (EVs) and hybrid electric vehicles (HEVs).
- Automotive power electronics such as DC-DC converters and motor drives.
- Industrial power systems requiring high isolation and robustness.
- Renewable energy systems and power grid applications.
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 applications, particularly in the automotive sector. - What are the peak output currents of the UCC21520-Q1?
The UCC21520-Q1 has peak output currents of 4A source and 6A sink. - What is the operating temperature range of the UCC21520-Q1?
The operating temperature range is from -40°C to 125°C. - What is the isolation voltage of the UCC21520-Q1?
The isolation voltage is 5.7kVRMS. - 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 safety certifications does the UCC21520-Q1 have?
The UCC21520-Q1 has various safety certifications including AEC-Q100, 8000VPK reinforced isolation per DIN EN IEC 60747-17, and CSA certification per several IEC standards. - What is the input VCCI range of the UCC21520-Q1?
The input VCCI range is from 3V to 18V. - What is the maximum VDD supply voltage for the UCC21520-Q1?
The maximum VDD supply voltage is 25V. - Does the UCC21520-Q1 have under voltage lock-out (UVLO) protection?
Yes, all supply voltage pins have UVLO protection. - What is the common-mode transient immunity (CMTI) of the UCC21520-Q1?
The CMTI is greater than 125V/ns.
