主頁 電源管理 AC/DC 和 DC/DC 轉(zhuǎn)換器（集成 FET）

TPS54240-Q1

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具有 Eco-Mode? 的汽車類 3.5V 至 42V、2.5A 降壓轉(zhuǎn)換器

產(chǎn)品詳情

Rating Automotive Topology Buck Iout (max) (A) 2.5 Vin (max) (V) 42 Vin (min) (V) 3.5 Vout (max) (V) 39 Vout (min) (V) 0.8 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Adjustable, Tracking, UVLO adjustable Control mode current mode Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 2500 Operating temperature range (°C) -40 to 125 Iq (typ) (μA) 138 Duty cycle (max) (%) 100 Type Converter
Rating Automotive Topology Buck Iout (max) (A) 2.5 Vin (max) (V) 42 Vin (min) (V) 3.5 Vout (max) (V) 39 Vout (min) (V) 0.8 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Adjustable, Tracking, UVLO adjustable Control mode current mode Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 2500 Operating temperature range (°C) -40 to 125 Iq (typ) (μA) 138 Duty cycle (max) (%) 100 Type Converter
HVSSOP (DGQ) 10 14.7 mm2 3 x 4.9 VSON (DRC) 10 9 mm2 3 x 3
  • Qualified for Automotive Applications
  • AEC Q100 Qualified With the Following Results:
    • Device Temperature Grade 1:
      –40°C to 125°C Ambient Operating
      Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C6
  • 3.5-V to 42-V Input Voltage Range
  • 200-mΩ High-Side MOSFET
  • High Efficiency at Light Loads With a
    Pulse-Skipping Eco-mode Control Scheme
  • 138-μA Operating Quiescent Current
  • 1.3-μA Shutdown Current
  • 100-kHz to 2.5-MHz Switching Frequency
  • Synchronizes to External Clock
  • Adjustable Slow Start/Sequencing
  • UV and OV Power-Good Output
  • Adjustable UVLO Voltage and Hysteresis
  • 0.8-V Internal Voltage Reference
  • MSOP10 PowerPAD Package
  • Supported by SwitcherPro Software Tool
    (http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)
  • For SWIFT Documentation, See the TI Web site at http://www.ti.com/swift
  • Qualified for Automotive Applications
  • AEC Q100 Qualified With the Following Results:
    • Device Temperature Grade 1:
      –40°C to 125°C Ambient Operating
      Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C6
  • 3.5-V to 42-V Input Voltage Range
  • 200-mΩ High-Side MOSFET
  • High Efficiency at Light Loads With a
    Pulse-Skipping Eco-mode Control Scheme
  • 138-μA Operating Quiescent Current
  • 1.3-μA Shutdown Current
  • 100-kHz to 2.5-MHz Switching Frequency
  • Synchronizes to External Clock
  • Adjustable Slow Start/Sequencing
  • UV and OV Power-Good Output
  • Adjustable UVLO Voltage and Hysteresis
  • 0.8-V Internal Voltage Reference
  • MSOP10 PowerPAD Package
  • Supported by SwitcherPro Software Tool
    (http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)
  • For SWIFT Documentation, See the TI Web site at http://www.ti.com/swift

The TPS54240-Q1 device is a 42-V, 2.5-A, step-down regulator with an integrated high-side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load, regulated-output supply current to 138 µA. Using the enable pin, shutdown supply current is reduced to 1.3 µA when the enable pin is low.

Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage start-up ramp is controlled by the slow-start pin that can also be configured for sequencing/tracking. An open-drain power-good signal indicates the output is within 94% to 107% of its nominal voltage.

A wide switching-frequency range allows efficiency and external component size to be optimized. Frequency foldback and thermal shutdown protects the part during an overload condition.

The TPS54240-Q1 is available in a 10-pin thermally enhanced MSOP PowerPAD package.

The TPS54240-Q1 device is a 42-V, 2.5-A, step-down regulator with an integrated high-side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load, regulated-output supply current to 138 µA. Using the enable pin, shutdown supply current is reduced to 1.3 µA when the enable pin is low.

Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage start-up ramp is controlled by the slow-start pin that can also be configured for sequencing/tracking. An open-drain power-good signal indicates the output is within 94% to 107% of its nominal voltage.

A wide switching-frequency range allows efficiency and external component size to be optimized. Frequency foldback and thermal shutdown protects the part during an overload condition.

The TPS54240-Q1 is available in a 10-pin thermally enhanced MSOP PowerPAD package.
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類型 標(biāo)題 下載最新的英語版本 日期
* 數(shù)據(jù)表 3.5 V to 42 V STEP DOWN SWIFT DC/DC CONVERTER WITH ECO-MODE 數(shù)據(jù)表 (Rev. B) 2013年 9月 5日
應(yīng)用手冊 Passing CISPR25 Radiated Emissions Using the TPS54160-Q1 (Rev. A) 2019年 5月 23日
應(yīng)用手冊 Understanding Eco-mode(TM) Operation 2016年 12月 5日
應(yīng)用手冊 Interfacing TPS57xxx-Q1 and TPS65320-Q1 Family Devices With Low Impendence Exter 2015年 12月 8日
應(yīng)用手冊 TPS54xx0-Q1 and TPS57xx0-Q1 Pin Open and Short Test Results (Rev. B) 2015年 11月 3日
應(yīng)用手冊 Design Considerations for DC-DC Converters in Fast-Input Slew Rate Applications 2015年 3月 5日
EVM 用戶指南 TPS54240EVM-605 2.5-A, SWIFT? Regulator Evaluation Module 2010年 3月 9日

設(shè)計和開發(fā)

如需其他信息或資源，請點擊以下任一標(biāo)題進(jìn)入詳情頁面查看（如有）。

評估板

TPS54240EVM-605 — 2.5A SWIFT™ 轉(zhuǎn)換器評估模塊

TPS54240 dc/dc 轉(zhuǎn)換器設(shè)計用于以 3.5V 至 40V 的輸入電壓提供 2.5A 的輸出電流。用戶指南的表 1 中列出了評估模塊的額定輸入電壓和輸出電流范圍。此評估模塊旨在演示使用 TPS54240 穩(wěn)壓器進(jìn)行設(shè)計時可實現(xiàn)的小印制電路板面積。開關(guān)頻率被內(nèi)部設(shè)置為 500kHz 的額定頻率。TPS54240 封裝內(nèi)部采用了高側(cè) MOSFET 以及柵極驅(qū)動器電路。MOSFET 的漏源電阻能使 TPS54240 實現(xiàn)高效率，并在高輸出電流的情況下幫助保持低結(jié)溫。補(bǔ)償組件位于集成電路 (IC) 外部，而外部除法器能實現(xiàn)可調(diào)節(jié)的輸出電壓。此外，TPS54240 (...)
用戶指南: PDF
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仿真模型

TPS54240 PSpice Transient Model (Rev. A)

SLIM265A.ZIP (53 KB) - PSpice Model
下載
仿真模型

TPS54240 TINA-TI Transient Reference Design

SLVM271.TSC (160 KB) - TINA-TI Reference Design
下載
仿真模型

TPS54240 TINA-TI Transient Spice Model

SLVM272.ZIP (51 KB) - TINA-TI Spice Model
下載
計算工具

TPS54-57XX0-CALC — TPS54xx0-Q1 and TPS57xx0-Q1 Design Calculation Tool

This worksheet is designed for use with Microsoft Excel 2002 or later. It intends to assist circuit designers in their day-to-day calculations

This worksheet includes two sections:

  • Recommendations: Calculates the maximum requirements for different components to guarantee the input voltage, output (...)
支持的產(chǎn)品和硬件

支持的產(chǎn)品和硬件

產(chǎn)品
AC/DC 和 DC/DC 轉(zhuǎn)換器（集成 FET）
TPS54240-Q1 — 具有 Eco-Mode? 的汽車類 3.5V 至 42V、2.5A 降壓轉(zhuǎn)換器 TPS54260-Q1 — 具有 Eco-Mode? 的汽車類 3.5V 至 60V、2.5A 降壓轉(zhuǎn)換器 TPS57040-Q1 — 具有 Eco-Mode? 的汽車類 3.5V 至 42V、500mA 降壓轉(zhuǎn)換器 TPS57060-Q1 — 具有 Eco-Mode? 的汽車類 3.5V 至 60V、500mA 降壓轉(zhuǎn)換器 TPS57140-EP — 具有 Eco-mode? 控制方案的 TPS57140-EP 1.5A、42V 降壓直流/直流轉(zhuǎn)換器 TPS57140-Q1 — 具有 Eco-Mode? 的汽車類 3.5V 至 42V、1.5A 降壓轉(zhuǎn)換器 TPS57160-Q1 — 具有 Eco-Mode? 的汽車類 3.5V 至 60V、1.5A 降壓轉(zhuǎn)換器
參考設(shè)計

TIDA-00346 — 面向基于入門級 TDA3x SoC 的 ADAS 系統(tǒng)的成本優(yōu)化型電源解決方案

TIDA-00346 設(shè)計為汽車先進(jìn)駕駛員輔助系統(tǒng) (ADAS) 應(yīng)用中的典型入門級應(yīng)用處理器提供電源軌。該設(shè)計使用多個單獨的直流/直流電壓穩(wěn)壓器以及負(fù)載開關(guān)和線性穩(wěn)壓器 (LDO) 提供用于處理片上系統(tǒng) (SoC) 的內(nèi)核和其他功能所需的固定電源電壓。此外還實施了 DDR 內(nèi)存電源和終端的電源軌以及 CAN 收發(fā)器。兩個 LM3880 簡單電源序列發(fā)生器分別提供加電和斷電定序。此設(shè)計已針對汽車應(yīng)用進(jìn)行優(yōu)化，可以在 4V 至 18V（瞬態(tài)高達(dá) 40V）的輸入電壓下工作。
測試報告: PDF
原理圖: PDF
封裝 引腳 CAD 符號、封裝和 3D 模型
HVSSOP (DGQ) 10 Ultra Librarian
VSON (DRC) 10 Ultra Librarian

訂購和質(zhì)量

包含信息：
  • RoHS
  • REACH
  • 器件標(biāo)識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續(xù)可靠性監(jiān)測
包含信息：
  • 制造廠地點
  • 封裝廠地點

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