Key facts
- Brand
- Texas Instruments
- Model
- UCC2808A
- Category
- Other Electronics
- Documents
- 3
- Languages
- EN
- Last added
- 2012-08-03
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TEXAS INSTRUEMNTS UCC2808A-1Q1 UCC2808A-2Q1 handbook
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.
Read onlineTexas Instruments UCC2808A specifications
| Oscillator frequency | 175 kHz (min) – 213 kHz (max) |
|---|---|
| Peak source current per output | 500 mA |
| Peak sink current per output | 1 A |
| Output low‑level current | 100 mA |
| Over‑current threshold | 0.65 V (min) – 0.85 V (max) |
All Texas Instruments UCC2808A documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum peak-source current capability of each output stage?
Each output stage is capable of driving a peak-source current of 500 mA.
What is the typical dead time between the two outputs?
The dead time between the two outputs is typically 60 ns to 200 ns.
How many external components are needed to program the oscillator?
Only two external components – a resistor and a capacitor – are required to set the oscillator frequency.
What does the internal discharge transistor on the CS pin do?
It discharges the filter capacitor on the CS pin each clock cycle, improving dynamic performance.
What is the typical dead time between the two output stages?
The dead time is typically 60 ns to 200 ns, depending on the timing resistor and capacitor values.
What is the recommended supply current for the device?
The supply current (IDD) is limited to ≤ 10 mA.