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Technical Specifications
Parameters and characteristics for this part
| Specification | UCC2819PW |
|---|---|
| Current - Startup | 150 µA |
| Frequency - Switching | 120 kHz |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 C |
| Voltage - Supply | 17 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Bulk | 167 | $ 1.80 | |
| N/A | 1846 | $ 2.05 | ||
Description
General part information
UCC2819 Series
The UCC2819A/UCC3819A provides all the functions necessary for active power factor corrected preregulators. The controller achieves near unity power factor by shaping the ac-input line current waveform to correspond to that of the ac-input line voltage. Average current mode control maintains stable, low distortion sinusoidal line current.
Designed in Texas Instrument’s BiCMOS process, the UCC3819A offers new features such as lower start-up current, lower power dissipation, overvoltage protection, a shunt UVLO detect circuitry and a leading-edge modulation technique to reduce ripple current in the bulk capacitor.
The UCC3819A allows the output voltage to be programmed by bringing out the error amplifier noninverting input.
Documents
Technical documentation and resources
