The UCC3809 family is a BCDMOS economy low power integrated circuit that contains all the control and drive circuitry required for off-line and isolated DC-to-DC fixed frequency current mode switching power supplies with minimal external parts count. It features user programmable soft start, maximum duty cycle, and other characteristics.
The document details the features and specifications of the UCC3809 family of BCDMOS economy low power integrated circuits. These devices contain all control and drive circuitry required for off-line and isolated DC-to-DC fixed frequency current mode switching power supplies with minimal external parts count.
| Startup Current (UCCx809-1) | < 100uA |
|---|---|
| Output Stage Type | Totem pole output stage |
| Maximum Duty Cycle | 70 % |
| Output Low Voltage During UVLO | 1.5 Vv |
The startup current is less than 100uA.
The maximum duty cycle is 70%.