TPS25850-Q1
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: TA range –40°C to +125°C
- HBM ESD classification level H2
- CDM ESD classification level C5
- Optimized for ultra-low EMI requirements:
- Meets CISPR25 class 5 standard
- HotRod™ package minimizes switch node ringing
- Spread spectrum reduces peak emissions
- Synchronous buck regulator
- High efficiency at 2.1 MHz: 93.4% at VIN = 13.5 V, IPA_BUS = 3 A and IPB_BUS = 3 A
- 18-mΩ/10-mΩ low RDS(ON) buck regulator MOSFETs
- Operating voltage range: 5.5 V to 26 V, withstand 36-V input
- Adjustable frequency: 200 kHz to 3 MHz
- FPWM with spread-spectrum dithering
- Selectable output voltage: 5.1 V, 5.17 V, 5.3 V, 5.4 V
- Internal power path:
- 7-mΩ/7-mΩ low RDS(ON) internal USB power MOSFETs
- Programmable current limit for USB ports with high accuracy: ±10% at 3.4 A
- OUT: 5.1 V, 200-mA supply for auxiliary loads
- Line drop compensation: 90 mV at 2.4-A load
- Compliant to USB-IF standards
- Type-C rev 1.3
- 3-A capability advertisement on CC
- VBUS application and discharge
- VCONN source: 200 mA
- USB cable polarity detection (POL) (TPS25851-Q1)
- Automatic DCP modes (TPS25850-Q1):
- Shorted mode per BC1.2 and YD/T 1591 2009
- 1.2-V mode
- 2.7-V Divider 3 mode
- Type-C rev 1.3
- Load shedding versus programmable TA
- Device TJ range: –40°C to +150°C
- FAULT flag reports (TPS25851-Q1 and TPS25852-Q1): USB overcurrent, thermal shutdown
- USB ports ON/OFF control (TPS25852-Q1)
The TPS258x-Q1 is an integrated USB charging port solution, which includes a synchronous DC/DC converter capable of supplying up to 6.6 A and integrated detection and control for implementing USB Battery Charging 1.2 and Type-C ports.
The TPS2585x-Q1 is a family of highly-integrated USB Type-C charging controller for dual-USB ports application.
The device integrates a monolithic, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs and two USB current-limit switches with charging port auto-detection. The TPS2585x-Q1 offers a compact solution that achieves 6.6 A of continuous output current with excellent load and line regulation over a wide input supply range. The synchronous buck regulator operates with peak-current mode control and is internally compensated to simplify the design. A resistor on the FREQ pin sets the switching frequency between 200 kHz and 3 MHz. Operating below 400 kHz results in better system efficiency and operation above 2.1 MHz avoids the AM radio bands and allows for use of a smaller inductor.
The TPS2585x-Q1 integrates standard USB Type-C port controller functionality including Configuration Channel (CC) logic for 3-A and 1.5-A current advertisement. Battery charging (Rev. 1.2) integration provides the required electrical signatures necessary for non-Type-C, legacy USB devices which use USB data line signaling to determine USB port current sourcing capabilities. The TPS2585x-Q1 also has integrated VCONN power that can meet the USB3.1 power requirement. The part is especially suitable for dual-port application due to the high system integration and small footprint.
The TPS2585x-Q1 supports intelligent thermal management. The USB output voltage and Type-C current advertisements can be regulated according to the temperature sensing through the TS pin. It must connect a NTC thermistor on the TS pin to monitor the ambient temperature or PCB boar temperature, depending on where the NTC thermistor is put in the USB charging module or PCB board. Select a different NTC thermistor and bottom-side series resistor can change the temperature threshold for load shedding.
The TPS2585x-Q1 have four selectable USB output voltage settings: 5.1 V, 5.17 V, 5.3 V, and 5.4 V. The TPS2585x-Q1 integrates a precision current sense amplifier for cable droop compensation and user-programmable current limit tuning. The cable compensation is only available when the output voltage is set to 5.17 V. The cable compensation voltage is 90 mV at 2.4-A output current. 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 BUS voltage measured at a connected portable device remains approximately constant, regardless of load current, allowing the battery charger of the portable device to work optimally.
The TPS2585x-Q1 provides various safety features for USB charging and system operations, including external negative thermistor monitoring, cycle-by-cycle current limit, hiccup short-circuit protection, undervoltage lockout, BUS overcurrent, OUT overcurrent, and die overtemperature protection.
The device family is available in a 25-pin, 3.5 mm x 4.5 mm QFN package.
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技術文件
| 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 | TPS2585x-Q1 2.2-MHz, Low EMI Dual 3-A USB Type-C® Charging Ports Converter With Thermal Management and Programmable Current Limit datasheet (Rev. D) | PDF | HTML | 2021/9/27 | ||
| Application brief | TI Automotive USB Charging Port Solution | PDF | HTML | 2022/2/18 | |||
| 更多文件說明 | Automotive USB charger challenges and innovations | 2021/12/15 | ||||
| 功能安全資訊 | TPS2585x-Q1 Functional Safety FIT Rate and Failure Mode Distribution | PDF | HTML | 2021/4/30 | |||
| 證書 | TPS25850Q1EVM-088 EU Declaration of Conformity (DoC) | 2020/8/4 |
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)。
TPS25850Q1EVM-088 — TPS25850-Q1 雙 3-A USB Type-C™ 充電埠控制器評估模組
PMP40680 — CISPR 25 Class 5 400-kHz 額定值 30-W 汽車雙 USB Type-C® 充電器參考設計
此參考設計是一款 EMI 最佳化設計，適用於具有雙 15-W 輸出的汽車 USB Type-C® 充電器。TPS25850-Q1 可作為 DC/DC 穩壓器和埠控制器使用。切換頻率設為 400 kHz。前端濾波器設計與 PCB 佈線圖經過最佳化，符合嚴格的 CISPR 25 第 5 級傳導電磁干擾 (EMI) 標準。此參考設計經測試符合 CISPR 25 第 5 級傳導 EMI 標準，可加快客戶設計時間。
PMP40681 — 小型額定值 30-W 車用雙 USB Type-C® 充電器參考設計
PMP40723 — CISPR 25 Class 5 2.2-MHz 額定值 30 W 車用 USB Type-C® 充電器參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN-HR (RPQ) | 25 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。