홈 전력 관리 AC/DC 스위칭 레귤레이터 AC/DC 컨트롤러
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전력 관리
AC/DC 스위칭 레귤레이터
AC/DC 컨트롤러

UCC28050

새 설계에 권장하지 않음

15.6V/9.7V UVLO 및 IEC61000-3-2 규정을 준수하는 전환 모드 PFC 컨트롤러, -40°C~105°C

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데이터 시트
UCC28050은(는) 새 설계에 권장하지 않습니다.
이 제품은 기존 고객을 위해 계속 제공됩니다. 새로운 설계는 대체 제품을 고려해야 합니다.
open-in-new 대안 비교
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀.
UCC28810 활성 LED 조명 전원 컨트롤러 UCC28050 Is now NRND; P2P replacement

UCC28050

새 설계에 권장하지 않음
데이터 시트 지금 주문하기

제품 상세 정보

Topology Boost, PFC controller Control mode TM Features Enable, Overvoltage protection, Peak current mode, Single-phase, Supports Flyback, Transition Control Mode Duty cycle (max) (%) 99
Topology Boost, PFC controller Control mode TM Features Enable, Overvoltage protection, Peak current mode, Single-phase, Supports Flyback, Transition Control Mode Duty cycle (max) (%) 99
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) PDIP (P) 8 92.5083 mm² (9.81 mm × 9.43 mm)
  • Transition Mode PFC Controller for Low Implementation Cost
  • Industry Pin Compatibility With Improved Feature Set
  • Improved Transient Response With Slew-Rate Comparator
  • Zero Power Detect to Prevent Overvoltage Protection (OVP) During Light Load Conditions
  • Accurate Internal VREF for Tight Output Regulation
  • Two UVLO Options
  • OVP, Open-Feedback Protection, and Enable Circuits
  • ±750-mA Peak Gate Drive Current
  • Low Start-Up and Operating Currents
  • Lead (Pb)-Free Packages
  • Transition Mode PFC Controller for Low Implementation Cost
  • Industry Pin Compatibility With Improved Feature Set
  • Improved Transient Response With Slew-Rate Comparator
  • Zero Power Detect to Prevent Overvoltage Protection (OVP) During Light Load Conditions
  • Accurate Internal VREF for Tight Output Regulation
  • Two UVLO Options
  • OVP, Open-Feedback Protection, and Enable Circuits
  • ±750-mA Peak Gate Drive Current
  • Low Start-Up and Operating Currents
  • Lead (Pb)-Free Packages

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.

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.

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* 데이터 시트 UCC2805x, UCC3805x Transition Mode PFC Controller datasheet (Rev. G) PDF | HTML 2015. 5. 5

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