| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 16 Pin |
| Case/Package | SOIC-16 |
| Switching Frequency | 87kHz ~ 109kHz |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage | 11V ~ 18V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tape & Reel (TR) |
| Operating Temperature | -40℃ ~ 125℃ |
The UCC29950 provides all the control functionality for an AC-to-DC converter with a CCM boost Power Factor Correction (PFC) stage followed by an LLC converter stage. The controller is optimized to allow ease of use.
●Proprietary CCM PFC algorithms enable the system to achieve high efficiency, smaller converter size with high power factor. The integrated LLC controller enables a high-efficiency DC-to-DC conversion stage utilizing soft switching for low EMI noise. Integration of PFC control and LLC control in a combo controller allows the control algorithms to take advantage of information from both stages.
●The controller includes a control circuit for start-up using a Depletion Mode MOSFET with internal device power management that minimizes external component requirements and helps lower system implementation costs.
●To further reduce the standby power an X-Cap discharge circuit is integrated. The UCC29950 implements a complete suite of system protection functions, including AC line brownout, PFC bus under voltage PFC and LLC, over current and thermal shutdown.
TI
UCC29950 CCM PFC and LLC Combo Controller 16-SOIC
TI
Power Factor Correction PWM CONTRLR 8mA 87kHz to 109kHz 16Pin SOIC T/R
TI
TEXAS INSTRUMENTS UCC29950D PFC Controller IC, 11V to 18V & 8mA Supply, 11V Lockout, 92% Duty Cycle, 98kHz, SOIC-16
TI
UCC29950 Soft Switching PWM Controller 11.9VDC to 12.1VDC Output Evaluation Board
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