The UCC1800/1/2/3/4/5 family is a group of high-speed, low-power integrated circuits designed for offline and DC-to-DC fixed frequency current-mode switching power supplies. They feature internal soft start, internal fault soft start, and internal leading-edge blanking of the current-sense signal.
The document details the features of the UCC1800/1/2/3/4/5, UCC2800/1/2/3/4/5 and UCC3800/1/2/3/4/5 families, which are high‑speed, low‑power integrated circuits for off‑line and DC‑to‑DC fixed‑frequency current‑mode switching power supplies. It lists typical supply currents, operating frequency up to 1 MHz, internal soft‑start, leading‑edge blanking, and a 1 A totem‑pole output.
Packaging options, pin functions, absolute maximum ratings, electrical characteristics, and mechanical drawings are provided for DIL‑8, SOIC‑8, TSSOP‑8 and other package types, along with ordering information and a standard TI disclaimer.
| Typical Starting Supply Current | 100 µA |
|---|---|
| Typical Operating Supply Current | 500 µA |
| Maximum Operating Frequency | 1 MHz |
| Maximum Output Current | ±1 A |
The typical starting supply current is 100 µA.