This document introduces the features of the UCC2808A product, including ESD protection, dual output drive stage configuration, current sense discharge transistor, typical starting current, typical running current, operating frequency, internal soft start, error amplifier, VDD clamping, output drive stage, etc.
The UCC2808A is a family of BICMOS push-pull, high-speed, low-power, pulse-width modulators designed for off-line or dc-to-dc fixed frequency current-mode switching power supplies. The device contains all control and drive circuitry required with minimal external parts count.
| Oscillator frequency | 175 to 213 kHz |
|---|---|
| Startup current | 130 to 260 mA |
Each output stage is capable of driving a peak-source current of 500 mA.
The dead time between the two outputs is typically 60 ns to 200 ns.
The recommended range of timing resistors is between 10 kΩ and 200 kΩ, and the range of timing capacitors is between 100 pF and 1000 pF.