首頁 電源管理 AC/DC 切換穩壓器 AC/DC 轉換器
首頁
電源管理
AC/DC 切換穩壓器
AC/DC 轉換器

LM25183-Q1

現行

具有 65-V、2.5-A 整合式 MOSFET 的車用 42-VIN 無光耦返馳式轉換器

立即訂購
產品規格表

LM25183-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Topology PSR flyback Switch current limit (typ) (A) 2.5 Iout (max) (A) 2.5 Vin (max) (V) 42 Vin (min) (V) 4.5 Features Enable, Integrated Switch, Light load efficiency, Pre-bias soft start, UVLO adjustable Control mode Peak current mode Switching frequency (min) (kHz) 12 Switching frequency (max) (kHz) 350 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Duty cycle (max) (%) 82
Rating Automotive Topology PSR flyback Switch current limit (typ) (A) 2.5 Iout (max) (A) 2.5 Vin (max) (V) 42 Vin (min) (V) 4.5 Features Enable, Integrated Switch, Light load efficiency, Pre-bias soft start, UVLO adjustable Control mode Peak current mode Switching frequency (min) (kHz) 12 Switching frequency (max) (kHz) 350 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Duty cycle (max) (%) 82
WSON (NGU) 8 16 mm² (4 mm × 4 mm)
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to 125°C ambient temperature range
  • Functional Safety-Capable
  • Designed for reliable and rugged applications
    • Wide input voltage range of 4.5 V to 42 V
    • Robust solution with only one component crossing the isolation barrier
    • ±1.5% total output regulation accuracy
    • Optional VOUT temperature compensation
    • –40°C to +150°C junction temperature range
  • Integration reduces solution size and cost
    • Integrated 65-V, 0.11-Ω power MOSFET
    • No optocoupler or transformer auxiliary winding required for VOUT regulation
  • High-efficiency PSR flyback operation
    • Quasi-resonant MOSFET turnoff in BCM
    • Single- and multi-output implementations
  • Ultra-low conducted and radiated EMI signatures
    • Soft switching avoids diode reverse recovery
    • Optimized for CISPR 25 Class 5 requirement
  • Create a custom flyback regulator design using WEBENCH Power Designer
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to 125°C ambient temperature range
  • Functional Safety-Capable
  • Designed for reliable and rugged applications
    • Wide input voltage range of 4.5 V to 42 V
    • Robust solution with only one component crossing the isolation barrier
    • ±1.5% total output regulation accuracy
    • Optional VOUT temperature compensation
    • –40°C to +150°C junction temperature range
  • Integration reduces solution size and cost
    • Integrated 65-V, 0.11-Ω power MOSFET
    • No optocoupler or transformer auxiliary winding required for VOUT regulation
  • High-efficiency PSR flyback operation
    • Quasi-resonant MOSFET turnoff in BCM
    • Single- and multi-output implementations
  • Ultra-low conducted and radiated EMI signatures
    • Soft switching avoids diode reverse recovery
    • Optimized for CISPR 25 Class 5 requirement
  • Create a custom flyback regulator design using WEBENCH Power Designer

The LM25183-Q1 is a primary-side regulated (PSR) flyback converter with high efficiency over a wide input voltage range of 4.5 V to 42 V. The isolated output voltage is sampled from the primary-side flyback voltage. The high level of integration results in a simple, reliable, and high-density design with only one component crossing the isolation barrier. Boundary conduction mode (BCM) switching enables a compact magnetic solution and better than ±1.5% load and line regulation performance. An integrated 65-V power MOSFET provides output power up to 10 W with enhanced headroom for line transients.

The LM25183-Q1 simplifies the implementation of isolated DC/DC supplies with optional features to optimize performance for the target end equipment. The output voltage is set by one resistor, while an optional resistor improves output voltage accuracy by negating the thermal coefficient of the flyback diode voltage drop. Additional features include an internally-fixed or externally-programmable soft-start, precision enable input with hysteresis for adjustable line UVLO, hiccup-mode overload protection, and thermal shutdown protection with automatic recovery.

The LM25183-Q1 converter is qualified to automotive AEC-Q100 grade 1 and is available in 8-pin WSON package with 0.8-mm pin pitch and wettable flanks.

The LM25183-Q1 is a primary-side regulated (PSR) flyback converter with high efficiency over a wide input voltage range of 4.5 V to 42 V. The isolated output voltage is sampled from the primary-side flyback voltage. The high level of integration results in a simple, reliable, and high-density design with only one component crossing the isolation barrier. Boundary conduction mode (BCM) switching enables a compact magnetic solution and better than ±1.5% load and line regulation performance. An integrated 65-V power MOSFET provides output power up to 10 W with enhanced headroom for line transients.

The LM25183-Q1 simplifies the implementation of isolated DC/DC supplies with optional features to optimize performance for the target end equipment. The output voltage is set by one resistor, while an optional resistor improves output voltage accuracy by negating the thermal coefficient of the flyback diode voltage drop. Additional features include an internally-fixed or externally-programmable soft-start, precision enable input with hysteresis for adjustable line UVLO, hiccup-mode overload protection, and thermal shutdown protection with automatic recovery.

The LM25183-Q1 converter is qualified to automotive AEC-Q100 grade 1 and is available in 8-pin WSON package with 0.8-mm pin pitch and wettable flanks.
filter 尋找其它 AC/DC 轉換器
下載 觀看有字幕稿的影片 影片

技術文件

找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 10
重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 LM25183-Q1 42-VIN PSR Flyback DC/DC Converter with 65-V, 2.5-A MOSFET datasheet (Rev. A) PDF | HTML 2020/9/22
類比設計期刊 Why use PSR‐flyback isolated converters in dual‐battery mHEV systems (Rev. A) PDF | HTML 2023/5/25
技術文章 MHEVs: Optimizing the automotive powertrain for efficiency and cost PDF | HTML 2021/5/24
應用說明 LM5180 EMI Performance PDF | HTML 2021/4/4
功能安全資訊 LM2518x, LM2518x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and P PDF | HTML 2020/8/26
技術文章 How to raise regulation performance with a stacked-output PSR flyback DC/DC conver PDF | HTML 2020/6/2
類比設計期刊 How an auxless PSR-flyback converter can increase PLC reliability and density 2019/9/30
白皮書 An overview of radiated EMI specifications for power supplies 2018/6/5
白皮書 An overview of conducted EMI specifications for power supplies 2018/2/1
Application brief PSR Flyback DC/DC Converter Transformer Design for mHEV Applications 2017/11/13

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

LM25184EVM-S12 — 42-VIN、1-AOUT PSR 返馳式轉換器單輸出評估模組

LM25184EVM-S12 評估模組 (EVM) 旨在展示具廣泛輸入電壓範圍的 LM25184-Q1 PSR 返馳式轉換器的性能。該設計採用微型元件封裝，元件數量少。可在 6 V 至 42 V 的廣泛輸入電壓範圍內運作，提供高於 1.5% 設定點準確度以及高達 1 A 電流的固定 12-V 輸出。LM25184-Q1 無需輔助繞組或光耦合器即可運作，並提供優於 1% 的極嚴格輸出電壓調節。LM25184-Q1 提供全套防護功能，可確保穩壓器在發生故障時提供防護。其中包括欠電壓鎖定 (UVLO) 以在電壓暫降情況下確保正常運作、可編程緩啟動 (SS) 以減少突波電流、Hiccup (...)
使用指南: PDF
支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
無法提供
模擬型號

LM25183-Q1 PSpice Transient Model

SNVMBZ3.ZIP (134 KB) - PSpice 模型
支援產品和硬體
計算工具

LM25183-LM25184DESIGN-CALC — LM25183 and LM25184 Quickstart Design Tool

Welcome to the LM25183 and LM25184 quickstart design tool. This standalone tool facilitates and assists the power-supply engineer with the design of a DC/DC flyback regulator based on the LM25183 and LM25184 PSR flyback converter. As such, the user can expeditiously arrive at an optimized design (...)
支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
WSON (NGU) 8 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片