UCC2818APWR
Active6KHZ-220KHZ CCM PFC CONTROLLER WITH 10.5V/10V UVLO AND SMALLER GATE DRIVE RESISTOR, -40°C TO 85°C
Deep-Dive with AI
Search across all available documentation for this part.
UCC2818APWR
Active6KHZ-220KHZ CCM PFC CONTROLLER WITH 10.5V/10V UVLO AND SMALLER GATE DRIVE RESISTOR, -40°C TO 85°C
Technical Specifications
Parameters and characteristics for this part
| Specification | UCC2818APWR |
|---|---|
| Current - Startup | 150 µA |
| Frequency - Switching [Max] | 220 kHz |
| Frequency - Switching [Min] | 6 kHz |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 C |
| Package / Case | 16-TSSOP |
| Package / Case [y] | 4.4 mm |
| Package / Case [y] | 0.173 in |
| Supplier Device Package | 16-TSSOP |
| Voltage - Supply [Max] | 17 V |
| Voltage - Supply [Min] | 12 VDC |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | N/A | 0 | $ 2.49 | |
| 14287 | $ 2.49 | |||
| Tape & Reel (TR) | 2000 | $ 1.93 | ||
| Texas Instruments | LARGE T&R | 1 | $ 3.35 | |
| 100 | $ 2.93 | |||
| 250 | $ 2.06 | |||
| 1000 | $ 1.66 | |||
Description
General part information
UCC2818 Series
The UCC2818A-Q1 device 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 UCC2818A-Q1 device offers new features such as lower start-up current, lower power dissipation, overvoltage protection, a shunt UVLO detect circuitry, a leading-edge modulation technique to reduce ripple current in the bulk capacitor and an improved, low-offset (±2 mV) current amplifier to reduce distortion at light load conditions.
The UCC2818A-Q1 PFC controller is directly pin-for-pin compatible with the UCC2818 devices. Only the output stage of UCC2818A-Q1 device has been modified to allow use of a smaller external gate drive resistor values. For some power supply designs where an adequately high enough gate drive resistor can not be used, the UCC2818A-Q1 device offers a more robust output stage at the cost of increasing the internal gate resistances. The gate drive of the UC2818A, however, remains strong at ±1.2 A of peak current capability.
Documents
Technical documentation and resources
