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TPS2549-Q1

現行

具有下垂補償功能的汽車 USB 充電埠控制器

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產品規格表

TPS2549-Q1

現行
產品規格表 立即訂購

產品詳細資料

Product type Charge port controller Vin (max) (V) 6.5 Vin (min) (V) 4.5 Continuous current (max) (A) 3.2 Current limit (A) 0.25 to 3.6 Current limit accuracy at 1 A 0.1 Number of switches 1 Enable Active High Rating Automotive Operating temperature range (°C) -40 to 85
Product type Charge port controller Vin (max) (V) 6.5 Vin (min) (V) 4.5 Continuous current (max) (A) 3.2 Current limit (A) 0.25 to 3.6 Current limit accuracy at 1 A 0.1 Number of switches 1 Enable Active High Rating Automotive Operating temperature range (°C) -40 to 85
WQFN (RTE) 16 9 mm² (3 mm × 3 mm)
  • AEC-Q100 Qualified With the Following Results:
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C5
  • 4.5-V to 6.5-V Operating Range
  • 47-mΩ (typ.) High-Side MOSFET
  • 3.2-A Maximum Continuous Output Current
  • ±5% CS Output for Cable Compensation
  • CDP Mode per USB Battery Charging Specification 1.2
  • Automatic DCP Modes Selection:
    • Shorted Mode per BC1.2 and YD/T 1591-2009
    • 2.7-V Divider 3 Mode
    • 1.2-V Mode
  • D+ and D– Client Mode for System Update
  • D+ and D– Short-to-VBUS Protection
  • D+ and D– ±8-kV Contact and ±15-kV Air Discharge ESD Rating (IEC 61000-4-2)
  • –40°C to 125°C Junction Operating Temperature
  • 16-Pin QFN (3-mm × 3-mm) Package
  • AEC-Q100 Qualified With the Following Results:
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C5
  • 4.5-V to 6.5-V Operating Range
  • 47-mΩ (typ.) High-Side MOSFET
  • 3.2-A Maximum Continuous Output Current
  • ±5% CS Output for Cable Compensation
  • CDP Mode per USB Battery Charging Specification 1.2
  • Automatic DCP Modes Selection:
    • Shorted Mode per BC1.2 and YD/T 1591-2009
    • 2.7-V Divider 3 Mode
    • 1.2-V Mode
  • D+ and D– Client Mode for System Update
  • D+ and D– Short-to-VBUS Protection
  • D+ and D– ±8-kV Contact and ±15-kV Air Discharge ESD Rating (IEC 61000-4-2)
  • –40°C to 125°C Junction Operating Temperature
  • 16-Pin QFN (3-mm × 3-mm) Package

The TPS2549-Q1 device is a USB charging port controller and power switch with a current-sense output that is able to control an upstream supply. This allows it to maintain 5 V at the USB port even with

heavy charging currents. This is important in systems with long USB cables where significant voltage drops can occur while fast-charging portable devices.

The TP2549-Q1 47-mΩ power switch has two selectable, programmable current limits that support port power management by providing a lower current limit that can be used when adjacent ports are experiencing heavy loads. This is important in systems with multiple ports and an upstream supply unable to provide full current to all ports simultaneously.

The DCP_Auto scheme detects and selects the proper D+ and D– settings to communicate with the attached device, so that it can fast-charge at full current. The integrated CDP detection enables up to 1.5-A fast charging of most portable devices with simultaneous data communication.

The unique client-mode feature allows software updates to client devices, but avoids power conflicts by turning off the internal power switch while keeping the data line connection.

Additionally, the TPS2549-Q1 device integrates short-to-VBUS protection for D+ and D– to prevent damage when D+ and/or D– unexpectedly short to VBUS. To save space in the application, the TPS2549-Q1 device also integrates ESD protection to pass IEC61000-4-2 without external circuitry on D+ and D–.

The TPS2549-Q1 device is a USB charging port controller and power switch with a current-sense output that is able to control an upstream supply. This allows it to maintain 5 V at the USB port even with

heavy charging currents. This is important in systems with long USB cables where significant voltage drops can occur while fast-charging portable devices.

The TP2549-Q1 47-mΩ power switch has two selectable, programmable current limits that support port power management by providing a lower current limit that can be used when adjacent ports are experiencing heavy loads. This is important in systems with multiple ports and an upstream supply unable to provide full current to all ports simultaneously.

The DCP_Auto scheme detects and selects the proper D+ and D– settings to communicate with the attached device, so that it can fast-charge at full current. The integrated CDP detection enables up to 1.5-A fast charging of most portable devices with simultaneous data communication.

The unique client-mode feature allows software updates to client devices, but avoids power conflicts by turning off the internal power switch while keeping the data line connection.

Additionally, the TPS2549-Q1 device integrates short-to-VBUS protection for D+ and D– to prevent damage when D+ and/or D– unexpectedly short to VBUS. To save space in the application, the TPS2549-Q1 device also integrates ESD protection to pass IEC61000-4-2 without external circuitry on D+ and D–.
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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 TPS2549-Q1 Automotive USB Charging Port Controller and Power Switch With Cable Compensation datasheet (Rev. C) PDF | HTML 2020/7/27
應用說明 How to Pass MFi Overcurrent Protection Test With USB Charger and Switch Device PDF | HTML 2020/2/26
應用說明 Monitoring Load Current With the TPS2549 and TPS254900 CS Pin 2017/8/31
應用說明 TPS2549 CDP-SDP Auto Switch 2017/7/19
應用說明 TPS2549-Q1 Production Silicon Change List 2016/7/19
技術文章 A complete power solution for automotive USB ports PDF | HTML 2016/4/12

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

TPS2549Q1EVM-729 — TPS2549Q1EVM 車用 USB 充電埠控制器和電源開關評估模組

TPS2549Q1EVM-729 是一款 USB 充電連接埠控制器，配備整合式電源開關和 USB 2.0 高速數據線 (DP/DM) 開關。TPS2549Q1EVM-729 在 DP_IN 和 DM_IN 上提供電氣特徵，以支援目前所有的充電方案。TPS2549Q1EVM-729 透過線性感測連接埠電流，並自動調整 LM53603AQPWPRQ1 的輸出電壓，整合 USB 纜線壓降補償，讓纜線終端裝置電壓維持在正常操作範圍內。

使用指南: PDF
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模擬型號

TPS2549 IBIS Model

SLUM624.ZIP (23 KB) - IBIS 模型
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模擬型號

TPS2549-Q1 Unencrypted PSpice Transient Model Package (Rev. A)

SLUM495A.ZIP (46 KB) - PSpice 模型
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參考設計

PMP40286 — 車用 USB Type-C™ DFP 5V 3A + USB Type-A 5V 2.4A 充電器參考設計

PMP40286 為雙埠車用充電器參考設計。  輸出至 5V 3A USB Type-C™ 埠與 5V 2.4A USB Type-A 埠。USB Type-C 埠可向下相容 BC1.2 和 DCP 配置。Type-A 埠可補償智慧型手機或平板電腦使用長纜線連接至 USB 充電器時電壓下降的影響。使用 12V 輸入的 USB 開關後，解決方案效率超過 91%。
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WQFN (RTE) 16 Ultra Librarian
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