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LMR38010-Q1

現行

車用 SIMPLE SWITCHER® 4.2-V 至 80-V、1-A 同步降壓轉換器

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產品規格表

LMR38010-Q1

現行
產品規格表 立即訂購

產品詳細資料

Iout (max) (A) 1 Vin (min) (V) 4.2 Vin (max) (V) 80 Topology Buck Type Converter Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed Control mode current mode Vout (min) (V) 1 Vout (max) (V) 75 Rating Automotive Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00004
Iout (max) (A) 1 Vin (min) (V) 4.2 Vin (max) (V) 80 Topology Buck Type Converter Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed Control mode current mode Vout (min) (V) 1 Vout (max) (V) 75 Rating Automotive Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00004
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Configured for rugged automotive applications
    • 4.2V to 80V input voltage range
    • 1A continuous output current
    • Ultra-low 40µA operating quiescent current
    • > 1.5mm distance between VIN and GND pin
    • 200kHz to 2.2MHz adjustable switching frequency
    • Frequency synchronization to external clock
    • Spread spectrum for reduced EMI
    • 97% maximum duty cycle
    • Support start-up with prebiased output
    • ±1.0% tolerance voltage reference at room temperature
    • Precision enable
    • Easy to use device with integrated compensation network enabling low BOM count
    • Integrated synchronous rectification
    • 8-pin HSOIC with PowerPAD™ integrated circuit package
    • PFM and forced PWM (FPWM) options
    • Available in 2A, LMR38020-Q1
  • Create a custom design using the LMR38010-Q1 with the WEBENCH Power Designer
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Configured for rugged automotive applications
    • 4.2V to 80V input voltage range
    • 1A continuous output current
    • Ultra-low 40µA operating quiescent current
    • > 1.5mm distance between VIN and GND pin
    • 200kHz to 2.2MHz adjustable switching frequency
    • Frequency synchronization to external clock
    • Spread spectrum for reduced EMI
    • 97% maximum duty cycle
    • Support start-up with prebiased output
    • ±1.0% tolerance voltage reference at room temperature
    • Precision enable
    • Easy to use device with integrated compensation network enabling low BOM count
    • Integrated synchronous rectification
    • 8-pin HSOIC with PowerPAD™ integrated circuit package
    • PFM and forced PWM (FPWM) options
    • Available in 2A, LMR38020-Q1
  • Create a custom design using the LMR38010-Q1 with the WEBENCH Power Designer

The LMR38010-Q1 synchronous buck converter is designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. The LMR38010-Q1 operates during input voltage dips as low as 4.2V, at nearly 100% duty cycle if needed, making the device an excellent choice for 48-V battery automotive applications and MHEV/EV systems.

The LMR38010-Q1 uses precision enable to provide flexibility by enabling a direct connection to the wide input voltage or precise control over device start-up and shutdown. The power-good flag, with built-in filtering and delay, offers a true indication of system status, eliminating the need for an external supervisor. The device incorporates pseudorandom spread spectrum for minimal EMI and switching frequency can be configured between 200kHz and 2.2MHz to avoid noise sensitive frequency bands. In addition, the frequency can be selected for improved efficiency at low operating frequency or smaller design size at high operating frequency.

The device has built-in protection features such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation. The LMR38010-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in an 8-pin HSOIC PowerPAD integrated circuit package.

The LMR38010-Q1 synchronous buck converter is designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. The LMR38010-Q1 operates during input voltage dips as low as 4.2V, at nearly 100% duty cycle if needed, making the device an excellent choice for 48-V battery automotive applications and MHEV/EV systems.

The LMR38010-Q1 uses precision enable to provide flexibility by enabling a direct connection to the wide input voltage or precise control over device start-up and shutdown. The power-good flag, with built-in filtering and delay, offers a true indication of system status, eliminating the need for an external supervisor. The device incorporates pseudorandom spread spectrum for minimal EMI and switching frequency can be configured between 200kHz and 2.2MHz to avoid noise sensitive frequency bands. In addition, the frequency can be selected for improved efficiency at low operating frequency or smaller design size at high operating frequency.

The device has built-in protection features such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation. The LMR38010-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in an 8-pin HSOIC PowerPAD integrated circuit package.
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類型 標題 日期
* Data sheet LMR38010-Q1 4.2V to 80V, 1A , Automotive, Synchronous SIMPLE SWITCHER Power Converter With 40µA IQ datasheet (Rev. B) PDF | HTML 2024年 1月 23日
Functional safety information LMR380x0-Q1 Functional Safety, FIT Rate, Failure Mode Distribution, and Pin FMA PDF | HTML 2021年 11月 5日

設計與開發

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開發板

LMR38020QEVM — LMR38020-Q1 評估模組 SIMPLE SWITCHER® 電源轉換器 80-V、2-A 同步降壓 40-µA IQ

LM38020QEVM 評估模組 (EVM) 使用 LMR38020S-Q1，是一款採用同步整流的 80-V DC/DC 降壓穩壓器，可在較小體積中實現高轉換效率。EVM 可在 6 V 至 80 V 的寬輸入電壓範圍內運作，以 400-kHz 切換頻率提供穩壓 5-V 輸出。輸出電壓的設定點準確度高於 1.5%，並可使用外部電阻分壓器進行調節。LMR38020QEVM 符合 LMR38020-Q1 與 LMR38020 降壓轉換器的要求。
使用指南: PDF | HTML
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模擬型號

LMR38010S-Q1 PSpice Transient Model

SNVMCD2.ZIP (316 KB) - PSpice Model
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參考設計

TIDM-02017 — 二輪和三輪車牽引逆變器參考設計

TIDM-02017 是 5kW、48V 牽引逆變器參考設計，旨在為您開發適用於兩輪車和三輪車應用的高性能、高效率牽引逆變器系統提供基礎，並協助您更快地將產品推向市場。此設計採用 F28P65x C2000™ 即時微控制器，可搭配 FreeRTOS 即時作業系統連接埠一起獨立執行馬達控制演算法。此參考設計也採用具有高閘極驅動強度和進階監控與保護功能的 DRV3255 整合式閘極驅動器，能實現穩固的逆變器運作。硬體設計的模組化 (包括 C2000™ 控制卡支援) 使其具有可擴充性，並可輕鬆評估 C2000™ 產品系列。
Design guide: PDF
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