전원 관리 AC/DC 및 DC/DC 컨트롤러(외장 FET)

LM5023

활성

AC-DC 반공진 전류 모드 PWM 컨트롤러

제품 상세 정보

Operating temperature range (°C) -40 to 125 Control mode Secondary-side regulation Topology Flyback Rating Catalog Features Leading edge blanking, Light load efficiency, Overvoltage protection, Quasi-Resonant, Secondary-side regulated, Skip cycle mode, TM Duty cycle (max) (%) 100
Operating temperature range (°C) -40 to 125 Control mode Secondary-side regulation Topology Flyback Rating Catalog Features Leading edge blanking, Light load efficiency, Overvoltage protection, Quasi-Resonant, Secondary-side regulated, Skip cycle mode, TM Duty cycle (max) (%) 100
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Critical Conduction Mode
  • Peak-Current Mode Control
  • Skip-Cycle Mode for Low-Standby Power
  • Hiccup Mode for Continuous Overload Protection
  • Cycle-by-Cycle Overcurrent Protection Maintains
    Accuracy Over the Universal AC Line
  • Line-Voltage Feedforward
  • OVP Protection by Sensing the Auxiliary Winding
  • Integrated 0.7-A Peak Gate Driver
  • Direct Opto-Coupler Interface
  • Leading Edge Blanking of Current Sense Signal
  • Maximum Frequency Clamp 130 kHz
  • Programmable Soft-Start
  • Thermal Shutdown
  • 8-Pin VSSOP Package
  • Critical Conduction Mode
  • Peak-Current Mode Control
  • Skip-Cycle Mode for Low-Standby Power
  • Hiccup Mode for Continuous Overload Protection
  • Cycle-by-Cycle Overcurrent Protection Maintains
    Accuracy Over the Universal AC Line
  • Line-Voltage Feedforward
  • OVP Protection by Sensing the Auxiliary Winding
  • Integrated 0.7-A Peak Gate Driver
  • Direct Opto-Coupler Interface
  • Leading Edge Blanking of Current Sense Signal
  • Maximum Frequency Clamp 130 kHz
  • Programmable Soft-Start
  • Thermal Shutdown
  • 8-Pin VSSOP Package

The LM5023 is a quasi-resonant pulse width modulated (PWM) controller which contains all of the features needed to implement a highly efficient off-line power supply. The LM5023 uses the transformer auxiliary winding for demagnetization detection to ensure critical conduction mode (CrCM) operation. The LM5023 features a hiccup mode for overcurrent protection with an auto restart to reduce the stress on the power components during an overload. A skip-cycle mode reduces power consumption at light loads for energy conservation applications (ENERGY STAR®, CEPCP, and so forth). The LM5023 also uses the transformer auxiliary winding for output overvoltage protection (OVP); if an OVP fault is detected the LM5023 latches off the controller.

The LM5023 is a quasi-resonant pulse width modulated (PWM) controller which contains all of the features needed to implement a highly efficient off-line power supply. The LM5023 uses the transformer auxiliary winding for demagnetization detection to ensure critical conduction mode (CrCM) operation. The LM5023 features a hiccup mode for overcurrent protection with an auto restart to reduce the stress on the power components during an overload. A skip-cycle mode reduces power consumption at light loads for energy conservation applications (ENERGY STAR®, CEPCP, and so forth). The LM5023 also uses the transformer auxiliary winding for output overvoltage protection (OVP); if an OVP fault is detected the LM5023 latches off the controller.

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기술 자료

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10개 모두 보기
유형 직함 날짜
* Data sheet LM5023 AC-DC Quasi-Resonant Current Mode PWM Controller datasheet (Rev. E) PDF | HTML 2016/01/06
White paper Power Electronics in Motor Drives: Where is it? (Rev. A) 2019/10/01
Selection guide Power Management Guide 2018 (Rev. R) 2018/06/25
EVM User's guide Using the UCC24630EVM-636 65-W AC-to-DC Adapter (Rev. B) 2016/12/12
More literature Design review of a 2-kW parallelable power supply module 2016/08/17
More literature Design review of a 2-kW parallelable power supply module (PPT) 2016/08/17
More literature Exposing the Inner Behavior of a Quasi-Resonant Flyback Converter 2013/10/29
Test report PMP8655 Test Results 2013/10/11
Application note LM5023-2EVM Notebook Adapter 2013/02/12
Product overview LM5023 Product Bulletin 2013/02/08

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

LM5023-2NBEVM — LM5023 19V 65W 노트북 어댑터 평가 모듈

The Texas Instruments LM5023-2NBEVM evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM5023 AC-DC Quasi-Resonant Current Mode PWM Controller. This is a 65W evaluation modules for off-line notebook adapter applications.

TI.com에서 구매 불가
평가 보드

UCC24630EVM-636 — UCC24630 65W AC/DC 어댑터

This is a high efficiency 65W AC/DC design using UCC24630 Synchronous Rectification Controller for a Universal input (85Vac to 265Vac) to 19.5V @3.33A output exceeding CoC-5 Tier2 and DOE Level VI performance requirements for external power supplies.

사용 설명서: PDF
TI.com에서 구매 불가
평가 보드

UCC28740EVM-525 — UCC28740EVM-525 평가 모듈

The UCC28740EVM-525 evaluation module is a 10W off-line discontinuous mode (DCM) flyback converter that provides constant-voltage (CV) and constant-current (CC) output regulation. It uses optical coupler feedback for tight voltage regulation and improved the transient response to large load steps (...)

사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

LM5023 TINA-TI Transient Reference Design

SNVM471.TSC (1447 KB) - TINA-TI Reference Design
시뮬레이션 모델

LM5023 TINA-TI Transient Spice Model

SNVM472.ZIP (23 KB) - TINA-TI Spice Model
시뮬레이션 모델

LM5023 Unencrypted PSpice Transient Model Package (Rev. A)

SNVM463A.ZIP (46 KB) - PSpice Model
레퍼런스 디자인

PMP8740 — 92%의 전부하 효율을 지원하는 2kW 산업용 AC/DC 배터리 충전기 레퍼런스 설계

This reference design is a module that can be set as standard power supply or a battery charger. The output voltage ranges from 0 V to 32 V at a maximum current of 62.5 A. It consists of four boards, a boost PFC, a phase shift full bridge, a small daughter board (hosting the microcontroller), and (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP20815 — 95VAC-130VAC-24V/72W 플라이백 레퍼런스 디자인

The PMP20815 reference design is a DCM Flyback with Optocoupler feedback. It operates at a 130kHz switching frequency to reduce transformer size. The reference design converts low-line AC mains to a 24V/72W output at 91% efficiency.
Test report: PDF
회로도: PDF
레퍼런스 디자인

TIDA-00519 — 65W 고효율 CoC-5 tier2/DOE 레벨 VI AC 어댑터

This is a high efficiency 65W AC/DC design for a Universal input (85Vac to 265Vac) to 19.5V @3.33A output exceeding CoC-5 Tier2 and DOE Level VI requirements for external power supplies using the LM5023 Quasi-Resontant Flyback Controller with UCC24630 Synchronous Rectification Controller and (...)
회로도: PDF
레퍼런스 디자인

PMP30047 — 2요소 납산 16V-32V, 170VAC-270VAC의 2A 배터리 충전기 레퍼런스 디자인

A quasi-resonant isolated flyback is employed to charge two lead-acid battery elements, starting from high-line mains. The converter accepts two external signals (referred to secondary side) to provide the reference voltages, which set output voltage and current. The converter shows good (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP4408 — 오프라인 AC/DC 120W 멀티 출력 플라이백 전원 공급 장치 레퍼런스 디자인

The PMP4408 is a universal AC input, 120W flyback converter reference design. The LM5023 Quasi Resonant Flyback converter was chosen to get 2 high-efficiency isolated outputs. Additionally a downstream Buck converter, the TPS5402 enables 2 high-efficiency non-isolated outputs. The QR Flyback design (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP7991 — 높고 넓은 AC Vin 반공진 절연 플라이백 레퍼런스 디자인

PMP7991 is a quasi-resonant isolated flyback using the LM5023 controller IC. The design accepts an input voltage of 85VAC to 265VAC and provides a selectable output of 12Vout or 5Vout capable of supplying 2A of current to the load. The quasi-resonant switching scheme helps to reduce EMI.
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP10100 — 오프라인 AC/DC 75W 반공진 플라이백 컨버터 레퍼런스 디자인

The PMP10100 reference design uses the LM5023 flyback controller for the Quasi-Resonant Flyback Topology. It generates an isolated output (19.5V@3.84A) from an universal input (85VAC - 265VAC).
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP10035 — 오프라인 AC/DC 75W 2 스위치 반공진 플라이백 컨버터 레퍼런스 디자인

This design uses the LM5023 flyback controller for the 2-Switch Quasi-Resonant Flyback Topology. It generates an isolated output (19.5V@3.84A) from an universal input (85VAC - 265VAC).
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP8955 — 프로그래머블 출력 정전압 - 정전류(CVCC) 반공진 플라이백 충전기

This industrial charger reference design uses the LM5023 Quasi-Resonant Flyback controller to implement a 120VAC input design with CVCC output configured by microcontroller PWM control from 10 to 22.5V and output current from 200mA to 2A.
Test report: PDF
회로도: PDF
패키지 CAD 기호, 풋프린트 및 3D 모델
VSSOP (DGK) 8 Ultra Librarian

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

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