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Texas Instruments UCC28051D | Demoboard PMP9730
PFC Controller for low to medium power applications requiring compliance with IEC 61000-3-2
Details
| Topologie | Sperrwandler |
| Eingangsspannung | 85-265 V |
| Ausgang 1 | 12 V / 3 A |
| IC-Revision | D |
Beschreibung
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.
Eigenschaften
Transition Mode PFC Controller for Low Implementation CostIndustry Pin Compatibility With Improved Feature SetImproved Transient Response With Slew-Rate ComparatorZero Power Detect to Prevent Overvoltage Protection (OVP) During Light Load ConditionsAccurate Internal VREF for Tight Output RegulationTwo UVLO OptionsOVP, Open-Feedback Protection, and Enable Circuits±750-mA Peak Gate Drive CurrentLow Start-Up and Operating CurrentsLead (Pb)-Free Packages
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | ISAT,10%(A) | ISAT,30%(A) | IR,40K(A) | IRP,40K(A) | fres(MHz) | Bauform | Version | Vin | VOut1(V) | IOut1(A) | Vaux(V) | fswitch(kHz) | NPRI : NSEC : NAUX | ISAT(mA) | IR(A) | L(µH) | RDC max.(mΩ) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | B(mm) | H(mm) | Montageart | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PD Speicherdrossel, 1 A, 1.25 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-PD Speicherdrossel | Sättigungsstrom 11 A | Sättigungsstrom @ 30%1.25 A | Nennstrom0.9 A | Performance Nennstrom1 A | Eigenresonanzfrequenz1 MHz | Bauform1210 | VersionGestanzt | – | – | – | – | – | – | – | Nennstrom0.9 A | Induktivität1000 µH | Gleichstromwiderstand1200 mΩ | – | – | – | Länge12 mm | Breite12 mm | Höhe10 mm | MontageartSMT | ||||
 | WE-TFC Stromkompensierte Netzdrossel, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-TFC Stromkompensierte Netzdrossel | – | – | – | – | – | BauformUU 9.8 H | – | – | – | – | – | – | – | – | Nennstrom1 A | Induktivität1800 µH | Gleichstromwiderstand310 mΩ | Nennspannung300 V (AC) | Prüfspannung2500 V (AC) | MaterialMnZn | Länge17 mm | Breite15.5 mm | Höhe12.5 mm | MontageartTHT | ||||
 | 750314940 | Transformer, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | Produktserie Transformer | – | – | – | – | – | BauformEP7 | – | Input Voltage 50 - 283 V (AC) | Ausgangsspannung 115 V | Ausgangsstrom 10.025 A | – | Switching Frequency 100 | Übersetzungsverhältnis2.75:1 | Sättigungsstrom110 mA | – | Induktivität4000 µH | – | – | Prüfspannung625 V (AC) | – | Länge9.78 mm | Breite9.5 mm | Höhe10.54 mm | MontageartSMT | |||
 | WE-OLTI Offline Flyback Transformers, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-OLTI Offline Flyback Transformers | – | – | – | – | – | BauformEFD25 | – | Input Voltage 85 - 265 V (AC) | Ausgangsspannung 112 V | Ausgangsstrom 13 A | Hilfsspannung12 V | Switching Frequency 60 - 120 | Übersetzungsverhältnis7:1:1 | Sättigungsstrom3300 mA | – | Induktivität380 µH | – | – | Prüfspannung4500 V (AC) | – | Länge26.3 mm | Breite33 mm | Höhe14.76 mm | MontageartTHT |