Texas Instruments UCC23525 Single-Channel Isolated Gate Driver
Texas Instruments UCC23525 Single-Channel Isolated Gate Driver is for IGBTs, MOSFETs, and SiC MOSFETs. It has a 5A source and 5A sink peak output current and a 5kVRMS reinforced isolation rating. The high supply voltage range of 30V allows the use of bipolar supplies to drive IGBTs and SiC power FETs effectively. The UCC23525 can drive both low-side and high-side power FETs. Key features and characteristics bring significant performance and reliability upgrades over standard opto-coupler-based gate drivers while maintaining pin-to-pin compatibility in schematic and layout design.
Performance highlights include high common-mode transient immunity (CMTI), low propagation delay, and small pulse width distortion. A tight process control results in small part-to-part skew. The input stage is an emulated diode (e-diode), which means long-term reliability and excellent aging characteristics compared to traditional LEDs found in optocoupler gate drivers. The UCC23525 is offered in a stretched SO-6 package, supporting a 5KVRMS reinforced isolation rating. The stretched SO-6 package has > 8.5mm creepage and clearance, and a mold compound from material group I, which has a comparative tracking index (CTI) > 600V.
The Texas Instruments UCC23525's high performance and reliability make it ideal for use in all types of motor drives, solar inverters, industrial power supplies, and appliances. The higher operating temperature opens up opportunities for applications not previously supported by traditional optocouplers.
Features
- 5kVRMS single-channel isolated gate driver with opto-compatible input
- Pin-to-pin replacement for opto-isolated gate drivers
- 5A source/5A sink, peak output current
- Maximum 36V output driver supply voltage
- 12V VDD undervoltage lockout
- Rail-to-rail output
- 100ns (max.) propagation delay
- 25ns (max.) part-to-part delay matching
- 30ns (max.) pulse width distortion
- 200kV/µs (min.) common-mode transient immunity (CMTI)
- Isolation barrier life > 50 years
- Stretched SO-6 package with > 8.5mm creepage and clearance
- Operating junction temperature, TJ of –40°C to +150°C
Applications
- Industrial motor-control drives
- Solar inverters
- Industrial power supplies, UPS
- Induction heating
Typical Application Schematic
Development Tool
Texas Instruments UCC23513EVM-014 Gate Driver Evaluation Module
Designed for evaluation of TI's 5kVRMS isolated gate driver with opto compatible input, UCC23513.