Loading [MathJax]/jax/output/SVG/fonts/TeX/fontdata.js
DATA SHEET
UCD8220 Digitally Managed Push-Pull Analog PWM Controllers
1 Features
- For digitally managed power supplies using μCs or the TMS320 ™ DSP family
- Voltage or peak current mode control with cycle-by-cycle current limiting
- Clock input from digital controller to set operating frequency and max duty cycle
- Analog PWM comparator
- 2-MHz switching frequency
- 110-V input startup circuit and thermal shutdown (UCD8620)
- Internal programmable slope compensation
- 3.3-V, 10-mA linear regulator
- DSP/μC compatible inputs
- Dual ±4-A TrueDrive™ integrated circuit high current drivers
- 10-ns typical rise and fall times with 2.2-nF
- 25-ns input-to-output propagation delay
- 25-ns current sense-to-output propagation delay
- Programmable current-limit threshold
- Digital output current-limit flag
- 4.5-V to 15.5-V supply voltage range
- Rated from –40°C to 105°C
2 Applications
- Digitally managed switch mode power supplies
- Push-pull, half-bridge, or full-bridge converters
- Battery chargers