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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LM25180-Q1

現行

具有 65V、15A 整合功率 MOSFET 的車用 42V 輸入 PSR 返馳式轉換器

立即訂購
產品規格表

LM25180-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Flyback Type Converter (Integrated Switch) Iout (max) (A) 1.5 Vin (min) (V) 4.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 12 Switching frequency (max) (kHz) 350 Features Enable, Integrated Switch, Light load efficiency, Pre-bias soft start, UVLO adjustable Control mode Peak current mode Duty cycle (max) (%) 82 Switch current limit (typ) (A) 1.5
Rating Automotive Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Flyback Type Converter (Integrated Switch) Iout (max) (A) 1.5 Vin (min) (V) 4.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 12 Switching frequency (max) (kHz) 350 Features Enable, Integrated Switch, Light load efficiency, Pre-bias soft start, UVLO adjustable Control mode Peak current mode Duty cycle (max) (%) 82 Switch current limit (typ) (A) 1.5
WSON (NGU) 8 16 mm² 4 x 4
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to 125°C ambient temperature range
  • 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
    • 6-ms internal or programmable soft start
    • Input UVLO and thermal shutdown protection
    • Hiccup-mode overcurrent fault protection
    • –40°C to +150°C junction temperature range
  • Integration reduces solution size and cost
    • Integrated 65-V, 0.4-Ω power MOSFET
    • No opto-coupler or transformer auxiliary winding required for VOUT regulation
    • Low EMI operation to meet CISPR 25
  • High efficiency PSR flyback operation
    • Quasi-resonant switching in boundary conduction mode (BCM) at heavy load
    • External bias option for improved efficiency
    • Single- and multi-output implementations
  • Create a custom regulator design using WEBENCH® Power Designer
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to 125°C ambient temperature range
  • 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
    • 6-ms internal or programmable soft start
    • Input UVLO and thermal shutdown protection
    • Hiccup-mode overcurrent fault protection
    • –40°C to +150°C junction temperature range
  • Integration reduces solution size and cost
    • Integrated 65-V, 0.4-Ω power MOSFET
    • No opto-coupler or transformer auxiliary winding required for VOUT regulation
    • Low EMI operation to meet CISPR 25
  • High efficiency PSR flyback operation
    • Quasi-resonant switching in boundary conduction mode (BCM) at heavy load
    • External bias option for improved efficiency
    • Single- and multi-output implementations
  • Create a custom regulator design using WEBENCH® Power Designer

The LM25180-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, eliminating the need for an optocoupler, voltage reference, or third winding from the transformer for output voltage regulation. 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 7 W with enhanced headroom for line transients.

The LM25180-Q1 converter simplifies 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, optional bias supply connection for higher efficiency, precision enable input with hysteresis for adjustable line UVLO, hiccup-mode overload protection, and thermal shutdown protection with automatic recovery.

The LM25180-Q1 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 LM25180-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, eliminating the need for an optocoupler, voltage reference, or third winding from the transformer for output voltage regulation. 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 7 W with enhanced headroom for line transients.

The LM25180-Q1 converter simplifies 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, optional bias supply connection for higher efficiency, precision enable input with hysteresis for adjustable line UVLO, hiccup-mode overload protection, and thermal shutdown protection with automatic recovery.

The LM25180-Q1 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.
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LM5180-Q1 現行 具有 100V、1.5A 整合式 MOSFET 的車用 65VIN 無光耦返馳式轉換器 65-V input rating

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類型 標題 日期
* Data sheet LM25180-Q1 42-VIN PSR Flyback DC/DC Converter with 65-V, 1.5-A Integrated MOSFET datasheet (Rev. A) PDF | HTML 2019年 7月 3日
White paper Isolated Bias Power Supply Architecture for HEV and EV Onboard Chargers PDF | HTML 2024年 11月 27日
Analog Design Journal Why use PSR‐flyback isolated converters in dual‐battery mHEV systems (Rev. A) PDF | HTML 2023年 5月 25日
Technical article MHEVs: Optimizing the automotive powertrain for efficiency and cost PDF | HTML 2021年 5月 24日
Application note LM5180 EMI Performance PDF | HTML 2021年 4月 4日
Functional safety information LMx518x-Q1 Functional Safety FIT Rate and Failure Mode Distribution (Rev. A) PDF | HTML 2020年 6月 26日
Technical article How to raise regulation performance with a stacked-output PSR flyback DC/DC conver PDF | HTML 2020年 6月 2日
Analog Design Journal How an auxless PSR-flyback converter can increase PLC reliability and density 2019年 9月 30日
EVM User's guide LM5180-Q1 Single-Output EVM User's Guide (Rev. D) 2019年 7月 18日
Application note DC/DC Buck Converters With Ultra-Low IQ for Industrial Battery-Pack Applications 2019年 2月 20日
White paper An overview of radiated EMI specifications for power supplies 2018年 6月 5日
White paper An overview of conducted EMI specifications for power supplies 2018年 2月 1日
Application brief PSR Flyback DC/DC Converter Transformer Design for mHEV Applications 2017年 11月 13日

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

LM5180EVM-DUAL — 寬 VIN PSR 返馳式轉換器雙輸出評估模組

The LM5180EVM-DUAL evaluation module (EVM) is designed to showcase the performance of the LM5180 PSR flyback converter with wide input voltage range. The design is packaged in a miniature footprint with low component count. It operates over a wide input voltage range of 10 V to 65 V to deliver a (...)
使用指南: PDF
TI.com 無法提供
開發板

LM5180EVM-S05 — 寬 VIN PSR 返馳式轉換器單輸出評估模組

The LM5180EVM-S05 evaluation module (EVM) is designed to showcase the performance of the LM5180 PSR flyback converter with wide input voltage range. The design is packaged in a miniature footprint with low component count. It operates over a wide input voltage range of 10 V to 65 V to deliver a (...)
使用指南: PDF
TI.com 無法提供
計算工具

LM25180DESIGN-CALC — LM25180 Flyback Converter Quickstart Design Tool

Welcome to the LM25180 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 LM25180 PSR flyback converter. As such, the user can expeditiously arrive at an optimized design to meet the application (...)

支援產品和硬體

支援產品和硬體

產品
AC/DC 和 DC/DC 轉換器 (整合式 FET)
LM25180 — 具有 65V、1.5A 整合式 MOSFET 的 42Vin 無光耦返馳式轉換器 LM25180-Q1 — 具有 65V、15A 整合功率 MOSFET 的車用 42V 輸入 PSR 返馳式轉換器
硬體開發
開發板
LM5180EVM-DUAL — 寬 VIN PSR 返馳式轉換器雙輸出評估模組 LM5180EVM-S05 — 寬 VIN PSR 返馳式轉換器單輸出評估模組
軟體
計算工具
LM25180DESIGN-CALC — LM25180 PSR 返馳快速入門設計工具
下載
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

支援產品和硬體

產品
AC/DC 和 DC/DC 轉換器 (整合式 FET)
LM25180-Q1 — 具有 65V、15A 整合功率 MOSFET 的車用 42V 輸入 PSR 返馳式轉換器 LM25183 — 具有 65-V、2.5-A 整合式 MOSFET 的 42-VIN 無光耦返馳式轉換器 LM25183-Q1 — 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 LM25184 — 具有 65-V、4.1-A 整合式 MOSFET 的 42-VIN 無光耦返馳式轉換器 LM25184-Q1 — 具有 65-V、4.1-A 整合式 MOSFET 的車用 42-VIN 無光耦返馳式轉換器
硬體開發
開發板
LM25184EVM-S12 — 42-VIN、1-AOUT PSR 返馳式轉換器單輸出評估模組
軟體
計算工具
LM25183-LM25184DESIGN-CALC — LM25183 和 LM25184 PSR 返馳快速入門設計工具
下載
PCB 佈局

LM5180EVM-S05 PCB Layout Files

SNVC233.ZIP (1903 KB)
下載
PCB 佈局

LM5180EVM-DUAL PCB Layout Files

SNVR472.ZIP (3416 KB)
下載
參考設計

PMP31182 — 採用四種不同拓撲的隔離式偏壓電源供應器參考設計

本參考設計展示四個使用不同拓撲做為 PSR 返馳、推拉式、LLC 共振和隔離式 DCDC 模組的隔離式偏壓電源供應器設計。這些拓撲可提供特定優點，但同時需有所取捨。使用四種硬體設計即可對這些拓撲進行充分比較，同時讓電力參數盡可能保持雷同。這些設計的輸入與輸出電壓為 15V，最大負載電流為 100mA。 
Test report: PDF
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