The UCC2813-0/-1/-2/-3/-4/-5 family of high-speed low-power integrated circuits contain all of the control and drive components required for off-line and dc-to-dc fixed-frequency current-mode switching power supplies with minimal parts count. These devices have the same pin configuration as the UC2842/3/4/5 family and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input. The UCC2813-0/-1/-2/-3/-4/-5 family offers choice of maximum duty cycle and critical voltage levels. Lower reference parts, such as the UCC2813-3 and UCC2813-5, fit best into battery-operated systems, while the higher reference and the higher undervoltage lockout (UVLO) hysteresis of the UCC2813-2
The UCC2813-0/-1/-2/-3/-4/-5-Q1 family consists of high-speed, low-power integrated circuits designed to control off-line and de-to-de fixed-frequency current-mode switching power supplies. These devices minimize parts count by including all necessary control and drive components.
| Operating Temperature Range | -40°C to 125°C |
|---|---|
| Reference Voltage (UCC2813-0/-1/-2/-4) | Typ. 5V |
| Reference Voltage (UCC2813-3/-5) | Typ. 4V |
| Maximum Duty Cycle (UCC2813-0/-2/-3) | 100% |
| Maximum Duty Cycle (UCC2813-1/-4/-5) | 50% |
| Gain Bandwidth Product | Typ. 2 MHz |
The UCC2813-x series is specified for the automotive temperature range of -40°C to 125°C.
Yes, these devices offer the added features of internal full-cycle soft start.