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USB 電源開關與充電埠控制器

TPS25840-Q1

現行

具有 STB 保護和電纜補償功能的 USB-A SDP/CDP 充電埠轉換器

立即訂購
產品規格表

TPS25840-Q1

現行
產品規格表 立即訂購

產品詳細資料

Product type Charge port converter Rating Automotive Continuous current (max) (A) 3.5 Current limit (A) 0.1 to 3.5 Number of switches 1 Enable Active High Vin (max) (V) 36 Vin (min) (V) 4.5 Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Current limit accuracy at 1 A adjustable
Product type Charge port converter Rating Automotive Continuous current (max) (A) 3.5 Current limit (A) 0.1 to 3.5 Number of switches 1 Enable Active High Vin (max) (V) 36 Vin (min) (V) 4.5 Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Current limit accuracy at 1 A adjustable
VQFN (RHB) 32 25 mm² 5 x 5
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
    • HBM ESD Classification level H2
    • CDM ESD Classification level C5
  • Functional Safety-Capable
  • Synchronous Buck DC/DC regulator
    • Input voltage range: 4.5 V to 36 V
    • Output current: 3.5 A
    • 5.1-V output voltage with ±1% accuracy
    • Current mode control
    • Adjustable frequency: 300 kHz to 2.2 MHz
    • Frequency synchronization to external clock
    • FPWM with spread-spectrum dithering
    • Internal compensation for ease of use
  • Compliant to USB-IF standards
    • CDP/SDP mode per USB BC1.2
  • Optimized for USB power and communication
    • User-programmable USB current limit
    • Cable droop compensation up to 1.5 V
    • High bandwidth data switches on DP and DM
    • Client mode for system update
  • Integrated protection
    • VBUS Short-to-VBAT protection
    • DP_IN and DM_IN Short-to-VBAT (TPS25840-Q1 only)
    • DP_IN and DM_IN Short-to-VBUS
    • DP_IN, DM_IN IEC 61000-4-2 rated
      • ±8-kV contact and ±15-kV air discharge
  • Fault flag reports
  • 32-pin QFN package with wettable flank
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
    • HBM ESD Classification level H2
    • CDM ESD Classification level C5
  • Functional Safety-Capable
  • Synchronous Buck DC/DC regulator
    • Input voltage range: 4.5 V to 36 V
    • Output current: 3.5 A
    • 5.1-V output voltage with ±1% accuracy
    • Current mode control
    • Adjustable frequency: 300 kHz to 2.2 MHz
    • Frequency synchronization to external clock
    • FPWM with spread-spectrum dithering
    • Internal compensation for ease of use
  • Compliant to USB-IF standards
    • CDP/SDP mode per USB BC1.2
  • Optimized for USB power and communication
    • User-programmable USB current limit
    • Cable droop compensation up to 1.5 V
    • High bandwidth data switches on DP and DM
    • Client mode for system update
  • Integrated protection
    • VBUS Short-to-VBAT protection
    • DP_IN and DM_IN Short-to-VBAT (TPS25840-Q1 only)
    • DP_IN and DM_IN Short-to-VBUS
    • DP_IN, DM_IN IEC 61000-4-2 rated
      • ±8-kV contact and ±15-kV air discharge
  • Fault flag reports
  • 32-pin QFN package with wettable flank

The TPS2584x-Q1 is a USB Type-A BC1.2 charging solution that includes a synchronous DC/DC converter. With cable droop compensation, the Vbus voltage remains constant regardless of load current, ensuring connected portable devices charge at optimal current and voltage even under heavy loads.

The TPS2584x-Q1 includes high bandwidth analog switches for DP and DM pass-through.

The TPS25840-Q1 also integrates short-to-battery protection on VBUS, DM_IN and DP_IN pins. These pins can withstand voltage up to 18 V. TPS25842-Q1 does not support data line (Dx) short-to-VBAT protection.

The synchronous buck regulator operates with current mode control and is internally compensated to simplify design. A resistor on the RT pin sets the switching frequency between 300 kHz and 2.2 MHz. Operating below 400 kHz results in better system efficiency. Operation above 2.1 MHz avoids the AM radio bands and allows for use of a smaller inductor.

The TPS2584x-Q1 integrates electrical signatures necessary for legacy devices which use USB data lines to determine charging configuration.

A precision current sense amplifier is included for user programmable cable droop compensation and current limit tuning. Cable compensation aids portable devices in charging at optimum current and voltage under heavy loads by changing the buck regulator output voltage linearly with load current to counteract the voltage drop due to wire resistance in automotive cabling. The VBUS voltage measured at a connected portable device remains approximately constant, regardless of load current, allowing the portable device’s battery charger to work optimally.

The USB specifications require current limiting of USB charging ports, but give system designers reasonable flexibility to choose overcurrent protection levels based on system requirements. The TPS2584x-Q1 uses a novel two-threshold current limit circuit allowing system designers to either program average current limit protection of the buck regulator, or optionally, current limit using an external NMOS between the CSN/OUT and BUS pins. The NFET implementation enables the TPS2584x-Q1 buck regulator to supply a 5-V output for other loads during an overcurrent condition on the USB port.

Protection features include cycle-by-cycle current limit, hiccup short-circuit protection, undervoltage lockout, VBUS overvoltage and overcurrent, data line (Dx) short to VBUS, and die overtemperature protection.

The TPS25840-Q1 includes high bandwidth analog switches for DP and DM pass-through, and support data line (Dx) short to VBAT protection. TPS25842-Q1 don’t support data line (Dx) short to VBAT protection.

The TPS2584x-Q1 is a USB Type-A BC1.2 charging solution that includes a synchronous DC/DC converter. With cable droop compensation, the Vbus voltage remains constant regardless of load current, ensuring connected portable devices charge at optimal current and voltage even under heavy loads.

The TPS2584x-Q1 includes high bandwidth analog switches for DP and DM pass-through.

The TPS25840-Q1 also integrates short-to-battery protection on VBUS, DM_IN and DP_IN pins. These pins can withstand voltage up to 18 V. TPS25842-Q1 does not support data line (Dx) short-to-VBAT protection.

The synchronous buck regulator operates with current mode control and is internally compensated to simplify design. A resistor on the RT pin sets the switching frequency between 300 kHz and 2.2 MHz. Operating below 400 kHz results in better system efficiency. Operation above 2.1 MHz avoids the AM radio bands and allows for use of a smaller inductor.

The TPS2584x-Q1 integrates electrical signatures necessary for legacy devices which use USB data lines to determine charging configuration.

A precision current sense amplifier is included for user programmable cable droop compensation and current limit tuning. Cable compensation aids portable devices in charging at optimum current and voltage under heavy loads by changing the buck regulator output voltage linearly with load current to counteract the voltage drop due to wire resistance in automotive cabling. The VBUS voltage measured at a connected portable device remains approximately constant, regardless of load current, allowing the portable device’s battery charger to work optimally.

The USB specifications require current limiting of USB charging ports, but give system designers reasonable flexibility to choose overcurrent protection levels based on system requirements. The TPS2584x-Q1 uses a novel two-threshold current limit circuit allowing system designers to either program average current limit protection of the buck regulator, or optionally, current limit using an external NMOS between the CSN/OUT and BUS pins. The NFET implementation enables the TPS2584x-Q1 buck regulator to supply a 5-V output for other loads during an overcurrent condition on the USB port.

Protection features include cycle-by-cycle current limit, hiccup short-circuit protection, undervoltage lockout, VBUS overvoltage and overcurrent, data line (Dx) short to VBUS, and die overtemperature protection.

The TPS25840-Q1 includes high bandwidth analog switches for DP and DM pass-through, and support data line (Dx) short to VBAT protection. TPS25842-Q1 don’t support data line (Dx) short to VBAT protection.
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類型 標題 日期
* Data sheet TPS2584x-Q1 Automotive USB Type-A BC1.2 5-V 3.5-A Output, 36-V Input Synchronous Buck With Cable Compensation datasheet (Rev. E) PDF | HTML 2022年 3月 21日
Application note TPS25830, TPS25831-Q1, and TPS25840-Q1 Short-to-Battery Application (Rev. A) PDF | HTML 2023年 6月 2日
Certificate TPS25840Q1EVM-079 EU Declaration of Conformity (DoC) 2020年 9月 14日
Functional safety information TPS2584x-Q1 Functional Safety FIT Rate and Failure Mode Distribution (Rev. A) PDF | HTML 2020年 7月 20日
Application note PCB Layout and Parameters Recommendation for TPS2583X EMC Performance 2020年 3月 25日
Application note How to Pass MFi Overcurrent Protection Test With USB Charger and Switch Device PDF | HTML 2020年 2月 26日
Application note How to Improve an Eye Diagram With the TPS25840-Q1 Device Using a Long USB Cable 2020年 1月 10日
Application note Ground Shift Phenomenon Recommendation of TPS2583x PDF | HTML 2019年 12月 2日
Application note Loop Characteristic Evaluation and Optimization of TPS2583x PDF | HTML 2019年 12月 2日
User guide TPS25840-Q1 Evaluation Module 2018年 12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

TPS25840Q1EVM-079 — 具有電纜補償和電流限制的 TPS25840-Q1 USB BC1.2 同步降壓評估模組

入門所需準備：
步驟 1：訂購硬體
步驟 2：下載 EVM 使用者指南

步驟 3：下載設計指南行和應用說明

TPS25840Q1EVM-079 是適用於 USB Type A 5V 3.5A 輸出，以及具纜線補償的 36V 輸入同步降壓的評估模組 (EVM)。此 EVM 具有電源端子區塊和用於產品充電和數據通訊的 USB type-A 連接器。電纜補償、電流限制和切換頻率可透過 EVM 上的電阻器進行調整。
使用指南: PDF
TI.com 無法提供
參考設計

PMP40544 — 符合 3-m USB-IF 近端規範的車用 USB Type-A 充電器參考設計

符合 3 公尺 USB-IF 近端合規的車用 USB Type-A 充電器參考設計。TPS25840-Q1 可做為 DC-DC 穩壓器和資料開關使用， TUSB217-Q1 則做為高速訊號調節器使用，以提升訊號品質。解決方案在 12-W 輸出時的效率為 93.3%，因此溫度僅上升 20.5°C。可編程纜線下降補償協助可攜式裝置在高負載下，於最佳電流與電壓下充電。USB 2.0 高速近端眼合規測試已通過電纜長度達 3 公尺之設計。
Test report: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN (RHB) 32 Ultra Librarian
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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
  • 認證摘要
  • 進行中持續性的可靠性監測
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  • 晶圓廠位置
  • 組裝地點

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