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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LMR38010

現行

具 40-µA IQ 的 SIMPLE SWITCHER® 80-V、1.0-A、2.2-MHz 降壓轉換器

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產品規格表

LMR38010

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 4.2 Vin (max) (V) 80 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 Iq (typ) (A) 0.00004
Rating Catalog Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 4.2 Vin (max) (V) 80 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 Iq (typ) (A) 0.00004
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • Functional Safety-Capable
  • Configured for rugged industrial applications
    • 4.2-V to 80-V input voltage range
    • 1-A continuous output current
    • Ultra-low 40-µA operating quiescent current
    • > 1.5-mm distance between VIN and GND pin
    • 200-kHz to 2.2-MHz adjustable switching frequency
    • Frequency synchronization to external clock
    • Spread spectrum option for reduced EMI
    • 97% maximum duty cycle
    • Support start-up with pre-biased 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 2-A, LMR38020
  • Create a custom design using the LMR38010 with the WEBENCH Power Designer
  • Functional Safety-Capable
  • Configured for rugged industrial applications
    • 4.2-V to 80-V input voltage range
    • 1-A continuous output current
    • Ultra-low 40-µA operating quiescent current
    • > 1.5-mm distance between VIN and GND pin
    • 200-kHz to 2.2-MHz adjustable switching frequency
    • Frequency synchronization to external clock
    • Spread spectrum option for reduced EMI
    • 97% maximum duty cycle
    • Support start-up with pre-biased 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 2-A, LMR38020
  • Create a custom design using the LMR38010 with the WEBENCH Power Designer

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

The LMR38010 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 200 kHz and 2.2 MHz to avoid noise sensitive frequency bands. In addition, the frequency can be selected for improved efficiency at low operating frequency or smaller solution 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 is available in an 8-pin HSOIC PowerPAD integrated circuit package.

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

The LMR38010 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 200 kHz and 2.2 MHz to avoid noise sensitive frequency bands. In addition, the frequency can be selected for improved efficiency at low operating frequency or smaller solution 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 is available in an 8-pin HSOIC PowerPAD integrated circuit package.
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類型 標題 日期
* Data sheet LMR38010 4.2-V to 80-V, 1-A, Synchronous SIMPLE SWITCHER Power Converter with 40-µA IQ datasheet (Rev. B) PDF | HTML 2023年 9月 18日
Application note Static Magnet Power Supply Design for Magnetic Resonance Imaging Application PDF | HTML 2024年 1月 22日
EVM User's guide LMR38020EVM User Guide (Rev. A) PDF | HTML 2022年 9月 19日
Functional safety information LMR380x0 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2021年 11月 2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

LMR38020EVM — 具 40-uA IQ 的 LMR38020 評估模組 SIMPLE SWITCHER 80-V、2-A、2.2-MHz 降壓轉換器

LMR38020EVM 評估模組 (EVM) 是完全組裝且經過測試的電路，用於評估 LMR38020F 降壓轉換器。基板具有跳線連接器，用於指示 POWERGOOD 旗標並與外部時脈同步。基板也具備用於環路量測的 AC 訊號注入端子。
使用指南: PDF | HTML
TI.com 無法提供
參考設計

TIDA-010936 — 適用於整合式馬達驅動的 48V/16A 小型三相 GaN 逆變器參考設計

此參考設計展示了高功率密度 12V 至 60V 3 相功率級，其使用三個 LMG2100R044 100V、35A GaN 半橋，且具有整合式 GaN FET、驅動器和自舉二極體，專為馬達整合式伺服驅動器與機器人應用所設計。  
透過 IN241A 電流感測放大器實現準確的相位電流感測，並且也會測量 DC 鏈路和相位電壓，以驗證 InstaSPIN-FOC™ 等先進的無感測器設計。此設計提供相容於 TI BoosterPack 的 3.3-V I/O 介面，可連接至 C2000™ MCU LaunchPad™ 開發套件或 Sitara™ 微控制器，以便快速輕鬆地評估我們的 GaN 技術。
Design guide: PDF
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  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 資格摘要
  • 進行中可靠性監測
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  • 組裝地點

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