UCC28050DR
LTBTRANSITION MODE PFC CONTROLLER WITH 15.6V/9.7V UVLO AND IEC61000-3-2 COMPLIANCE, -40°C TO 105°C
Deep-Dive with AI
Search across all available documentation for this part.
UCC28050DR
LTBTRANSITION MODE PFC CONTROLLER WITH 15.6V/9.7V UVLO AND IEC61000-3-2 COMPLIANCE, -40°C TO 105°C
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | UCC28050DR |
|---|---|
| Current - Startup | 75 µA |
| Frequency - Switching | 200 kHz |
| Mode | Discontinuous (Transition) |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 105 ░C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 8-SOIC |
| Package / Case [x] | 0.154 in |
| Package / Case [y] | 3.9 mm |
| Supplier Device Package | 8-SOIC |
| Voltage - Supply [Max] | 18 V |
| Voltage - Supply [Min] | 15.4 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 0.85 | |
| 10 | $ 0.76 | |||
| 25 | $ 0.72 | |||
| 100 | $ 0.59 | |||
| 250 | $ 0.55 | |||
| 500 | $ 0.49 | |||
| 1000 | $ 0.39 | |||
| Digi-Reel® | 1 | $ 0.85 | ||
| 10 | $ 0.76 | |||
| 25 | $ 0.72 | |||
| 100 | $ 0.59 | |||
| 250 | $ 0.55 | |||
| 500 | $ 0.49 | |||
| 1000 | $ 0.39 | |||
| Tape & Reel (TR) | 2500 | $ 0.32 | ||
| Texas Instruments | LARGE T&R | 1 | $ 0.69 | |
| 100 | $ 0.53 | |||
| 250 | $ 0.39 | |||
| 1000 | $ 0.28 | |||
Description
General part information
UCC28050 Series
The UCC38050 and UCC38051 are PFC controllers for low-to-medium power applications requiring compliance with IEC 1000-3-2 harmonic reduction standard. The controllers are designed for a boost preregulator operating in transition mode (also referred to as boundary-conduction mode or critical conduction-mode operation). They feature a transconductance voltage amplifier for feedback error processing, a simple multiplier for generating a current command proportional to the input voltage, a current-sense (PWM) comparator, PWM logic, and a totem-pole driver for driving an external FET.
In the transition mode operation, the PWM circuit is self-oscillating, with the turnon being governed by an inductor zero-current detector (ZCD pin), and the turnoff being governed by the current-sense comparator. Additionally, the controller provides features such as peak current limit, default timer, overvoltage protection (OVP) and enable.
The UCC38050 and UCC38051 are PFC controllers for low-to-medium power applications requiring compliance with IEC 1000-3-2 harmonic reduction standard. The controllers are designed for a boost preregulator operating in transition mode (also referred to as boundary-conduction mode or critical conduction-mode operation). They feature a transconductance voltage amplifier for feedback error processing, a simple multiplier for generating a current command proportional to the input voltage, a current-sense (PWM) comparator, PWM logic, and a totem-pole driver for driving an external FET.
Documents
Technical documentation and resources