Overview
The UCC21520EVM-286 is an evaluation module designed by Texas Instruments to evaluate the UCC21520DW, an isolated dual-channel gate driver. This module is part of TI's 5.7-kVRMS isolated gate driver family, which is capable of driving Si MOSFETs, IGBTs, and wide bandgap (WBG) devices such as SiC and GaN transistors. The UCC21520EVM-286 provides a comprehensive platform for testing and evaluating the performance of the UCC21520DW in various power management and high-voltage applications.
Key Specifications
| Description | Min | Max | Unit | |
|---|---|---|---|---|
| VCCI Primary-side power supply | 3 | 18 | 18 | V |
| VDDA, VDDB Driver output power supply (UCC21520EVM-286, UCC20520EVM-286) | 9.2 | 25 | 25 | V |
| VDDA, VDDB Driver output power supply (UCC21521CEVM-286, UCC21530EVM) | 14.7 | 25 | 25 | V |
| Switching frequency (FS) | 0 | - | 5 | MHz |
| Operating junction temperature range (TJ) | -40 | - | 125 | °C |
| Source/Sink current capability | - | 4-A source, 6-A sink | - | A |
| Isolation voltage | - | - | 5.7 kVRMS | V |
Key Features
- Evaluation module for the UCC21520DW in a wide body SOIC-16 package
- 3-V to 18-V VCCI power supply range and up to 25-V VDDA/VDDB power supply range
- 4-A source and 6-A sink peak current capability
- TTL/CMOS-compatible inputs
- Onboard trimmer potentiometer for dead-time programming
- 3-position header for INA, INB, DT, and enable/disable signals
- PCB layout optimized for power supply bypassing capacitors and gate driver loop
- PCB board cutout for high voltage isolation testing between primary and secondary sides
- Maximized creepage distance between two output channels
- Support for half-bridge testing with MOSFETs, IGBTs, and SiC MOSFETs
- Testing points for probing all key pins of the UCC21520DW and other related parts
Applications
The UCC21520EVM-286 is designed for evaluating and testing the UCC21520DW in various high-voltage and power management applications. These include but are 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
- Electric vehicle charging and power management
Q & A
- What is the primary purpose of the UCC21520EVM-286 evaluation module?
The primary purpose is to evaluate the performance of the UCC21520DW isolated dual-channel gate driver. - What is the voltage range for the VCCI power supply?
The VCCI power supply range is from 3 V to 18 V. - What is the peak current capability of the UCC21520DW?
The UCC21520DW has a 4-A source and 6-A sink peak current capability. - What type of devices can the UCC21520DW drive?
The UCC21520DW can drive Si MOSFETs, IGBTs, and WBG devices such as SiC and GaN transistors. - How is dead-time programming managed on the UCC21520EVM-286?
Dead-time programming is managed using an onboard trimmer potentiometer and various jumper settings. - What is the isolation voltage rating of the UCC21520DW?
The isolation voltage rating is 5.7 kVRMS. - What are the key components included in the UCC21520EVM-286?
The module includes the UCC21520DW IC, power supply bypassing capacitors, gate driver loop components, and testing points for key pins. - How do you configure the dead time between output channels?
The dead time can be configured using jumper settings and an external resistor connected to the DT pin. - What are some common applications for the UCC21520DW?
Common applications include power supplies, motor drives, renewable energy systems, industrial automation, and electric vehicle charging. - What is the operating junction temperature range for the UCC21520DW?
The operating junction temperature range is from -40°C to 125°C.
