首頁 電源管理 USB 電源開關與充電埠控制器
首頁
電源管理
USB 電源開關與充電埠控制器

TPS254900A-Q1

現行

具 VBATT 短路保護的車用 USB 主機充電器

立即訂購
產品規格表

TPS254900A-Q1

現行
產品規格表 立即訂購

產品詳細資料

Product type Charge port controller Rating Automotive Continuous current (max) (A) 3.2 Current limit (A) 0.25 to 3.6 Number of switches 1 Enable Active High Vin (max) (V) 6.5 Vin (min) (V) 4.5 Operating temperature range (°C) -40 to 85 Current limit accuracy at 1 A 0.1
Product type Charge port controller Rating Automotive Continuous current (max) (A) 3.2 Current limit (A) 0.25 to 3.6 Number of switches 1 Enable Active High Vin (max) (V) 6.5 Vin (min) (V) 4.5 Operating temperature range (°C) -40 to 85 Current limit accuracy at 1 A 0.1
WQFN (RVC) 20 12 mm² 4 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
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C5
  • 4.5-V to 6.5-V Input Operating Range
  • 3.5-V (typ) UVLO to Support Start-Stop
  • Integrated 45-mΩ (typ.) High-Side MOSFET
  • 3.2-A Maximum Continuous Output Current
  • VBUS ±5% Cable Compensation Accuracy at Connector
  • Supports USB BC 1.2 CDP and SDP Modes
  • Short-to-Battery Protection on OUT, DP_IN, and DM_IN Pins
  • DP_IN and DM_IN IEC 61000-4-2 Rated
    • ±8-kV Contact and ±15-kV Air Discharge
  • 20-Pin QFN (3-mm × 4-mm) Package
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C5
  • 4.5-V to 6.5-V Input Operating Range
  • 3.5-V (typ) UVLO to Support Start-Stop
  • Integrated 45-mΩ (typ.) High-Side MOSFET
  • 3.2-A Maximum Continuous Output Current
  • VBUS ±5% Cable Compensation Accuracy at Connector
  • Supports USB BC 1.2 CDP and SDP Modes
  • Short-to-Battery Protection on OUT, DP_IN, and DM_IN Pins
  • DP_IN and DM_IN IEC 61000-4-2 Rated
    • ±8-kV Contact and ±15-kV Air Discharge
  • 20-Pin QFN (3-mm × 4-mm) Package

The TPS254900A-Q1 device is a USB charging-port controller and power switch with short-to-battery protection. This feature provides protection on OUT, DM_IN and DP_IN. These three pins withstand voltage up to 18 V.

The internal MOSFET turns off quickly when the short-to-battery condition occurs. Rapid turnoff is very important to protect the upstream DC-DC converter, processor, or hub data lines.

The TPS254900A-Q1 has a low UVLO of 3.5 V, so that the power switch does not turn off during start-stop.

The TPS254900A-Q1 45-mΩ power switch has two selectable, adjustable current limits that support port power management by changing to a lower current limit when adjacent ports are experiencing heavy loads. This is important in systems with multiple ports and upstream power supplies with limited capacity.

The TPS254900A-Q1 device has a current-sense output that is able to control an upstream supply, which allows it to maintain 5 V at the USB port even with heavy charging currents. This feature is important in systems with long USB cables where significant voltage drops can occur with fast-charging portable devices.

A current monitor allows a system to monitor the load current in real time by monitoring the IMON voltage. The current monitor is very useful and can be used for dynamic port-power management.

The TPS254900A-Q1 device also provides ESD protection capability per IEC 61000-4-2, level 4 on DP_IN and DM_IN.

The TPS254900A-Q1 device is a USB charging-port controller and power switch with short-to-battery protection. This feature provides protection on OUT, DM_IN and DP_IN. These three pins withstand voltage up to 18 V.

The internal MOSFET turns off quickly when the short-to-battery condition occurs. Rapid turnoff is very important to protect the upstream DC-DC converter, processor, or hub data lines.

The TPS254900A-Q1 has a low UVLO of 3.5 V, so that the power switch does not turn off during start-stop.

The TPS254900A-Q1 45-mΩ power switch has two selectable, adjustable current limits that support port power management by changing to a lower current limit when adjacent ports are experiencing heavy loads. This is important in systems with multiple ports and upstream power supplies with limited capacity.

The TPS254900A-Q1 device has a current-sense output that is able to control an upstream supply, which allows it to maintain 5 V at the USB port even with heavy charging currents. This feature is important in systems with long USB cables where significant voltage drops can occur with fast-charging portable devices.

A current monitor allows a system to monitor the load current in real time by monitoring the IMON voltage. The current monitor is very useful and can be used for dynamic port-power management.

The TPS254900A-Q1 device also provides ESD protection capability per IEC 61000-4-2, level 4 on DP_IN and DM_IN.
filter 尋找其它 USB 電源開關與充電埠控制器
下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

open-in-new 比較替代產品
引腳對引腳且具備與所比較裝置相同的功能
TPS254900-Q1 現行 具 BATT 短路保護與下垂補償的車用 USB 充電連接埠控制器 TPS254900-Q1 does not support start stop condition

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 2
重要文件 類型 標題 格式選項 日期
* Data sheet TPS254900A-Q1 Automotive USB Host Charger With Short-to-VBATT Protection datasheet (Rev. B) 2020年 7月 27日
Application note How to Pass MFi Overcurrent Protection Test With USB Charger and Switch Device PDF | HTML 2020年 2月 26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

TPS254900AQ1EVM — 具有 LMR14030 3.5A 降壓穩壓器的 TPS254900A-Q1 評估模組

TPS254900AQ1 評估模組 (TPS254900AQ1EVM) 包含適用於 TPS254900AQ1 的評估和參考電路，該電路是 USB 充電控制器和電源開關、集成的 VBUS 和 D+/D- 電池短路保護、電纜補償、電流監控器 (IMON) 和 IEC ESD 保護，適用於汽車 USB 充電和 USB 埠保護應用。
使用指南: PDF
TI.com 無法提供
模擬型號

TPS254900A-Q1 Unencrypted PSpice Transient Model Package (Rev. A)

SLUM627A.ZIP (35 KB) - PSpice Model
下載
封裝 針腳 CAD 符號、佔位空間與 3D 模型
WQFN (RVC) 20 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

內含資訊：
  • RoHS
  • REACH
  • 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
  • 進行中的可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片