The UCC21320-Q1 is an isolated dual-channel gate drivers with 4-A source and 6-A sink peak current. It is designed to drive power MOSFETs, IGBTs, and SiC MOSFETs up to 5-MHz with best-in-class propagation delay and pulse-width distortion.
The input side is isolated from the two output drivers by a 3.75-kVRMS basic isolation barrier, with a minimum of 100-V/ns common-mode transient immunity (CMTI). Internal functional isolation between the two secondary-side drivers allows a working voltage of up to 1500 VDC.
Every driver can be configured as two low-side drivers, two high-side drivers, or a half-bridge driver with programmable dead time (DT). A disable pin shuts down both outputs simultaneously, and allows normal operation when left open or grounded. As a fail-safe measure, primary-side logic failures force both outputs low.
Each device accepts VDD supply voltages up to 25 V. A wide input VCCI range from 3 V to 18 V makes the driver suitable for interfacing with both analog and digital controllers. All supply voltage pins have under voltage lock-out (UVLO) protection.
With all these advanced features, the UCC21320-Q1 enables high efficiency, high power density, and robustness.
| Number of channels | 2 |
| Isolation rating | Functional |
| Withstand isolation voltage (VISO) (Vrms) | 3750 |
| Working isolation voltage (VIOWM) (Vrms) | 2121 |
| Transient isolation voltage (VIOTM) (VPK) | 5303 |
| Power switch | IGBT, MOSFET, SiCFET |
| Peak output current (A) | 6 |
| Features | Disable, Programmable dead time |
| Output VCC/VDD (max) (V) | 25 |
| Output VCC/VDD (min) (V) | 9.2 |
| Input VCC (min) (V) | 3 |
| Input VCC (max) (V) | 18 |
| Propagation delay time (µs) | 0.019 |
| Input threshold | CMOS, TTL |
| Operating temperature range (°C) | -40 to 125 |
| Rating | Automotive |
| Bus voltage (max) (V) | 2121 |
| Rise time (ns) | 6 |
| Fall time (ns) | 19 |
| Undervoltage lockout (typ) (V) | 8 |
| SOIC (DWK) | 14 | 106.09 mm² 10.3 x 10.3 |