The UCC21225A is an isolated dual-channel gate driver with 4-A source and 6-A sink peak current in a 5-mm x 5-mm LGA-13 package. It is designed to drive power transistors 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 2.5-kVRMS isolation barrier, with 100-V/ns minimum common-mode transient immunity (CMTI). Internal functional isolation between the two secondary side drivers allows working voltage up to 700-VDC.
This driver can be configured as two low-side, two high-side, or a half-bridge driver with programmable dead time (DT). A disable pin shuts down both outputs simultaneously when it is set high, and allows normal operation when left open or grounded.
The 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 the supply voltage pins have under voltage lock-out (UVLO) protection.
With all these advanced features, the UCC21225A enables high power density, high efficiency, and robustness in a wide variety of power applications.
| Number of channels | 2 |
| Isolation rating | Functional |
| Withstand isolation voltage (VISO) (Vrms) | 2500 |
| Working isolation voltage (VIOWM) (Vrms) | 792 |
| Transient isolation voltage (VIOTM) (VPK) | 3535 |
| 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) | 6.5 |
| 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 | Catalog |
| Bus voltage (max) (V) | 792 |
| Rise time (ns) | 6 |
| Fall time (ns) | 7 |
| Undervoltage lockout (typ) (V) | 5 |
| VLGA (NPL) | 13 | 25 mm² 5 x 5 |