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TPS54340-Q1

不推薦在新設計中採用

具 Eco-Mode™ 的車用 4.5V 至 42VIN、3.5A 降壓轉換器

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TPS54340-Q1 不建議用於新設計
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TPS54340B-Q1 現行 具 Eco-Mode™ 的車用 4.5V 至 42V 輸入、3.5A 降壓轉換器 Pin-compatible with the TPS54340-Q1.

TPS54340-Q1

不推薦在新設計中採用
產品規格表 立即訂購

產品詳細資料

Iout (max) (A) 3.5 Vin (min) (V) 4.5 Vin (max) (V) 42 Type Converter Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 2500 Features Enable, Frequency synchronization, Light Load Efficiency, Soft Start Adjustable, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 41 Rating Automotive Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000146
Iout (max) (A) 3.5 Vin (min) (V) 4.5 Vin (max) (V) 42 Type Converter Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 2500 Features Enable, Frequency synchronization, Light Load Efficiency, Soft Start Adjustable, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 41 Rating Automotive Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000146
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • 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 H1C
    • Device CDM ESD Classification Level C3B
  • High Efficiency at Light Loads With Pulse Skipping
    Eco-mode™
  • 92-mΩ High-Side MOSFET
  • 146-µA Operating Quiescent Current and 2-µA
    Shutdown Current
  • 100-kHz to 2.5-MHz Adjustable Switching
    Frequency
  • Synchronizes to External Clock
  • Low Dropout at Light Loads With Integrated
    BOOT Recharge FET
  • Adjustable UVLO Voltage and Hysteresis
  • 0.8 V 1% Internal Voltage Reference
  • 8-Pin HSOIC With PowerPAD™ Package
  • –40°C to 150°C TJ Operating Range
  • Supported by WEBENCH® Software Tool
  • 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 H1C
    • Device CDM ESD Classification Level C3B
  • High Efficiency at Light Loads With Pulse Skipping
    Eco-mode™
  • 92-mΩ High-Side MOSFET
  • 146-µA Operating Quiescent Current and 2-µA
    Shutdown Current
  • 100-kHz to 2.5-MHz Adjustable Switching
    Frequency
  • Synchronizes to External Clock
  • Low Dropout at Light Loads With Integrated
    BOOT Recharge FET
  • Adjustable UVLO Voltage and Hysteresis
  • 0.8 V 1% Internal Voltage Reference
  • 8-Pin HSOIC With PowerPAD™ Package
  • –40°C to 150°C TJ Operating Range
  • Supported by WEBENCH® Software Tool

The TPS54340-Q1 device is a 42-V, 3.5-A, step-down regulator with an integrated high-side MOSFET. The device survives load-dump pulses up to 45 V per ISO 7637. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load supply current to 146 µA. Shutdown supply current is reduced to 1 µA when the enable pin is pulled low.

Undervoltage lockout is internally set at 4.3 V but can be increased using an external resistor divider at the enable pin. The output voltage start-up ramp is internally controlled to provide a controlled start-up and eliminate overshoot.

A wide adjustable frequency range allows for optimization of either efficiency or external component size. Frequency foldback and thermal shutdown protects internal and external components during an overload condition.

The TPS54340-Q1 device is available in an 8-pin thermally-enhanced HSOIC PowerPAD package.

The TPS54340-Q1 device is a 42-V, 3.5-A, step-down regulator with an integrated high-side MOSFET. The device survives load-dump pulses up to 45 V per ISO 7637. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load supply current to 146 µA. Shutdown supply current is reduced to 1 µA when the enable pin is pulled low.

Undervoltage lockout is internally set at 4.3 V but can be increased using an external resistor divider at the enable pin. The output voltage start-up ramp is internally controlled to provide a controlled start-up and eliminate overshoot.

A wide adjustable frequency range allows for optimization of either efficiency or external component size. Frequency foldback and thermal shutdown protects internal and external components during an overload condition.

The TPS54340-Q1 device is available in an 8-pin thermally-enhanced HSOIC PowerPAD package.
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類型 標題 日期
* Data sheet TPS54340-Q1 4.5-V to 42-V Input, 3.5-A, Step-Down DC-DC Converter With Eco-Mode™ datasheet (Rev. A) PDF | HTML 2015年 11月 16日
Selection guide Automotive Infotainment EE Buck Converter/Controller Selection Guide (Rev. B) 2021年 4月 15日
Application note NRND & Differences TPS54340/360/540/560 and TPS54340B/360B/540B/560B 2019年 4月 5日
EVM User's guide Evaluation Module for the TPS54340-Q1 Step-Down Converter 2013年 9月 24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

TPS54340-Q1EVM-593 — TPS54340-Q1EVM-593 評估模組/電路板

The TPS54340-Q1EVM-593 is a fully assembled and tested circuit for evaluating the TPS54340-Q1 Step-Down Converter. The TPS54340-Q1EVM-593 operates from a 7V to 42V input (12V nominal) and provides a 5V output at 3.5A. Additional input filtering is used for reducing conducted emissions.

使用指南: PDF
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模擬型號

TPS54340 PSpice Transient Model (Rev. A)

SLVM694A.ZIP (111 KB) - PSpice Model
下載
模擬型號

TPS54340 Unencrypted PSpice Transient Model

SLVMCT6.ZIP (5 KB) - PSpice Model
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參考設計

PMP4471 — 具有整合線性下垂補償的車用 USB 充電器參考設計

The PMP4471 reference design provides detailed data for evaluating and verifying a USB charger, which uses a USB charge controller and a buck converter .  The design is capable of compensating for the effects on Vdroop when a smartphone / tablet is connected to the USB charger using a cable (...)
Test report: PDF
電路圖: PDF
參考設計

PMP4425 — 具有線性下垂補償的車用 USB 充電器參考設計

The PMP4425 reference design provides detailed data for evaluating and verifying a USB charger, which uses a USB charge controller, a buck converter and a shunt amplifier. Additionally the design demonstrates an automotive USB charging port that offers short-to-battery protection. With the help of (...)
Test report: PDF
電路圖: PDF
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