TPS2540
- Meets Battery Charging Specification BC1.2 for DCP and CDP
- Meets Chinese Telecommunications Industry Standard YD/T 1591-2009
- Supports Sleep-Mode Charging for Most Available Apple Devices and/or BC1.2 Compliant Devices
- Compatible With USB 2.0 and 3.0 Power Switch Requirements
- 2.6-GHz Bandwidth USB 2.0 Data Switch
- 73-mΩ (typ.) High-Side MOSFET
- Adjustable Current Limit up to 2.8 A (typical)
- OUT Discharge Through CTLx=000 (TPS2540/40A) or DSC (TPS2541/41A) Input
- Longer Detach Detection Time (TPS2540A/41A) Supporting Additional Legacy Devices
- Available in 16-Pin QFN Package
The TPS2540/40A and TPS2541/41A are a combination of current-limited USB port power switch with a USB 2.0 high-speed data line (D+/D-) switch and a USB charging port identification circuit. Applications include notebook PCs and other intelligent USB host devices. The wide bandwidth (2.6 GHz) data-line switch also features low capacitance and low on resistance, allowing signals to pass with minimum edge and phase distortion. The TPS2540/40A/41/41A monitors D+ and D-, providing the correct hand-shaking protocol with compliant client devices.
The TPS2540/40A/41/41A supports the following charging logic schemes:
- USB 2.0 BC1.2
- Chinese Telecom Standard YD/T 1591-2009
- Divider Mode, compliant with Apple devices such as iPod and iPhone
CTL1-CTL3 logic inputs are used to select one of the various charge modes provided by the TPS2540/40A and TPS2541/41A . These charge modes allow the host device to actively select between Dedicated Charging Port (DCP) (wall-adapter emulation), Charging Downstream Port (CDP) (active USB 2.0 data communications with 1.5-A support), or Standard Downstream Port (SDP) USB 2.0 Mode (active USB 2.0 data communications with 500-mA support). The TPS2540/40A/41/41A also integrates an auto-detect feature that supports both DCP schemes for Battery Charging Specification (BC1.2) and the Divider Mode without the need for outside user interaction.
The TPS2540A auto detect mode also has a longer detach detection time, so that it can support certain unique non-compliant devices. The TPS2540/40A/41/41A power-distribution switch is intended for applications where heavy capacitive loads and short-circuits are likely to be encountered, incorporating a 73-mΩ, N-channel MOSFET in a single package. Constant-current mode is used when the output load exceeds the current-limit threshold. ILIM_SEL logic input selects one of two current-limit thresholds, each one being individually adjustable via an external resistor. Additional USB switch features include a de-glitched output fault reporting (FAULT), and a logic-level enable EN (TPS2540/40A) or OUT discharge control DSC (TPS2541). With the TPS2540/40A, the mode “000” is used to force an output discharge.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | USB Charging Port Power Switch and Controller for Charging Host Ports datasheet (Rev. C) | 2011年 9月 14日 | |
| Certificate | US-39957-UL Certificate of Compliance IEC 62368-1 | 2022年 6月 27日 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| Selection guide | USB Type-A Power Switch and Charging Controller Selector Guide (Rev. F) | 2018年 5月 24日 | ||
| Application note | Effective System ESD Protection for TPS254x USB Charging Port Controllers | 2016年 6月 3日 | ||
| Application note | Creating a Universal Car Charger for USB Devices From the TPS54240 and TPS2511 (Rev. E) | 2013年 9月 16日 | ||
| User guide | TPS2540EVM-623: Evaluation Module for TPS2540/40A and TPS2541/41A (Rev. B) | 2011年 8月 10日 |
設計與開發
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TPS2540EVM-623 — TPS254x USB 充電埠電源開關和控制器的評估模組
TPS2540 Unencrypted PSPICE Transient Model Package (Rev. A)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RTE) | 16 | Ultra Librarian |
訂購與品質
- 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
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點