UCC28050D
ActiveTRANSITION MODE PFC CONTROLLER WITH 15.6V/9.7V UVLO AND IEC61000-3-2 COMPLIANCE, -40°C TO 105°C
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UCC28050D
ActiveTRANSITION MODE PFC CONTROLLER WITH 15.6V/9.7V UVLO AND IEC61000-3-2 COMPLIANCE, -40°C TO 105°C
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Technical Specifications
Parameters and characteristics for this part
| Specification | UCC28050D |
|---|---|
| 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 | Tube | 1 | $ 1.00 | |
| 10 | $ 0.89 | |||
| 75 | $ 0.85 | |||
| 150 | $ 0.70 | |||
| 300 | $ 0.65 | |||
| 525 | $ 0.58 | |||
| Texas Instruments | TUBE | 1 | $ 0.81 | |
| 100 | $ 0.63 | |||
| 250 | $ 0.46 | |||
| 1000 | $ 0.33 | |||
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