The UCC3810 is a dual channel synchronized current-mode PWM controller, suitable for offline and DC-to-DC power supplies. It provides perfect synchronization between two PWMs by using the same oscillator. It also features internal soft-start, full-cycle fault restart, and internal leading-edge blanking.
The UCC2810 and UCC3810 are high‑speed BiCMOS controllers that integrate two synchronized pulse‑width modulators for off‑line and DC‑to‑DC power supplies. Both devices share a single oscillator, provide internal soft‑start, full‑cycle fault restart, and feature leading‑edge blanking of the current‑sense inputs.
Key features include 1‑A totem‑pole outputs, 75‑ns typical response from current sense to output, 1.5 % voltage‑reference tolerance, and operation up to 1 MHz. The datasheet provides electrical characteristics, pin functions, ordering information, and application notes for designing with these controllers.
| Supply voltage (VCC) | 10 V |
|---|---|
| Operating supply current (outputs off) | 2–3 mA |
| Oscillator frequency range | up to 1 MHz |
| Output peak current | 1 A |
| Typical response time (current sense to output) | 75 ns |
| Voltage reference tolerance | 1.5 % |
The controller can operate up to 1 MHz.
It provides two synchronized PWM channels.
The typical response time is 75 ns.