Overview
The UCC21520DWR, produced by Texas Instruments, is a highly advanced isolated dual-channel gate driver designed to drive power MOSFETs, IGBTs, and SiC MOSFETs. This component features a 5.7-kV RMS reinforced isolation barrier and is capable of operating up to 5 MHz with exceptional propagation delay and pulse-width distortion. The UCC21520DWR is versatile, allowing configuration as two low-side drivers, two high-side drivers, or a half-bridge driver with programmable dead time. It is ideal for high-efficiency, high-power density applications requiring robust performance and safety certifications.
Key Specifications
| Parameter | Value |
|---|---|
| Peak Current | 4-A source, 6-A sink |
| Isolation Voltage | 5.7-kV RMS |
| Propagation Delay | 19-ns typical |
| Pulse Width Distortion | 6-ns maximum |
| Common-Mode Transient Immunity (CMTI) | Greater than 100 V/ns |
| Surge Immunity | Up to 12.8 kV |
| Operating Temperature Range | –40 to +125°C |
| Input VCCI Range | 3 V to 18 V |
| VDD Output Drive Supply | Up to 25 V |
| UVLO Options | 5-V and 8-V |
| Package Type | Industry standard wide body SOIC-16 (DW) |
Key Features
- Dual-channel isolated gate driver with dual input and disable pin.
- Configurable as two low-side drivers, two high-side drivers, or a half-bridge driver with programmable dead time.
- TTL and CMOS compatible inputs.
- Wide input VCCI range from 3 V to 18 V for interfacing with both digital and analog controllers.
- Up to 25-V VDD output drive supply with 5-V and 8-V UVLO options.
- Rejects input pulses and noise transients shorter than 5 ns.
- Fast disable for power sequencing.
- Safety-related certifications including CSA, CQC, and UL standards.
Applications
The UCC21520DWR is suitable for a wide variety of power applications, including but not limited to:
- Power supplies and DC-DC converters.
- Motor drives and industrial automation.
- Renewable energy systems such as solar and wind power.
- Electric vehicles and automotive systems.
- Medical devices requiring high isolation and safety standards.
Q & A
- What is the peak current capability of the UCC21520DWR?
The UCC21520DWR has a peak current capability of 4-A source and 6-A sink. - What is the isolation voltage of the UCC21520DWR?
The isolation voltage is 5.7-kV RMS. - What is the typical propagation delay of the UCC21520DWR?
The typical propagation delay is 19 ns. - What is the common-mode transient immunity (CMTI) of the UCC21520DWR?
The CMTI is greater than 100 V/ns. - What are the operating temperature range and surge immunity of the UCC21520DWR?
The operating temperature range is –40 to +125°C, and the surge immunity is up to 12.8 kV. - Can the UCC21520DWR 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 are the input VCCI range and VDD output drive supply of the UCC21520DWR?
The input VCCI range is from 3 V to 18 V, and the VDD output drive supply is up to 25 V. - Does the UCC21520DWR have UVLO protection?
Yes, it has UVLO protection with 5-V and 8-V options. - What safety certifications does the UCC21520DWR hold?
The UCC21520DWR holds CSA, CQC, and UL safety certifications. - What package type is the UCC21520DWR available in?
The UCC21520DWR is available in an industry standard wide body SOIC-16 (DW) package.
