TPS25821DSSR - 1.5A USB Type-C Source Controller | Texas Instruments
MPN: TPS25821DSSR ✓ Hoạt độngTPS25821DSSR Tóm tắt
A USB Type-C source controller is an interface IC that manages the behavior of a USB Type-C port acting as a source. It detects attached USB Type-C equipment, advertises the available source behavior, establishes the power path, and coordinates the voltage and current available to the connected device. By integrating this function with a 1.5A power switch, the TPS25821DSSR reduces the number of separate components required in a compact USB Type-C power source.
Key features include a 1.5A power-switch rating, a 12-WSON package with an exposed pad, and an operating temperature range of -40°C to 125°C. Its 3 mm by 2 mm package supports space-constrained consumer, industrial, and accessory designs. Texas Instruments also identifies the device as a USB Type-C source controller suitable for supplying 5V at 1.5A, while also supporting legacy devices with dedicated charging protocol behavior.
The controller and integrated switch provide a functional partition between USB Type-C port management and protected power delivery. CC-pin handling determines source-role behavior, while the integrated power path limits the available output current to 1.5A. Designers still need to validate the complete Type-C system against the applicable USB Type-C specification, including advertising, cable orientation, current behavior, fault handling, and system power requirements.
Typical applications include USB Type-C adapters, USB Type-C docking accessories, portable charging products, industrial USB power adapters, and compact host ports that provide a controlled 5V source. The TPS25821DSSR is especially useful when board area is limited and integrating the source controller with the output switch offers a simpler implementation than using separate components.
For layout, place the input and output capacitors close to their associated power-switch pins, connect the exposed thermal pad to the ground plane, and keep USB Type-C signal and power routing compact. Validate thermal performance at the maximum continuous output current and ensure the external Type-C connector, cable, and supply are rated for the intended charging current.
This page consolidates verified manufacturer and distributor information, source-controller application context, pin-package constraints, and practical design guidance. It also distinguishes confirmed specifications from electrical details that still require consultation of the manufacturer datasheet and application notes.
Bộ thay thế dễ dàng lắp đặt cho TPS25821DSSR — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với TPS25821DSSR (cùng hình factor và footprint) — khác nhau ở Package, VCONN Support.
TPS25820DSSR
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| Product Type | USB Type-C source controller and power switch |
| Power-Switch Output Current | 1.5 A |
| Nominal Source Output Voltage | 5 V |
| USB Interface Generation | USB 2.0 and USB 3.1 |
| USB Connector Type | USB Type-C |
| Hộp | 12-WSON (DSS), 3 mm x 2 mm |
| Số chân | 12 pins |
| Exposed Pad | Present |
| Kiểu lắp đặt | Surface mount |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | 125°C |
| Source Role | USB Type-C source controller |
| Output Power at 5 V and 1.5 A | 7.5 W |
| Trạng thái RoHS | Compliant |
| REACH Status | Compliant |
Hướng dẫn cấu hình chân TPS25821DSSR 12-wson (dss), 3 mm x 2 mm
Cấu hình chân cho TPS25821DSSR (12-wson (dss), 3 mm x 2 mm gói). Động cơ điện này có chân cổng, nguồn và đầu ra. Đối với các gói không phân極, tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết hướng dẫn chính xác của chân 1 và chi tiết về vân footprint. Các ứng dụng phổ biến bao gồm thiết kế nguồn cung cấp điện, điều khiển động cơ và chuyển đổi tải.
Không có dữ liệu chân cụ thể sẵn có cho TPS25821DSSR.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
TPS25821DSSR phù hợp cho 6 Áp dụngs: USB Type-C Power Adapter, Compact USB Type-C Docking Accessory, Legacy USB Charging Adapter, Industrial USB Type-C Power Port, Portable Charging Accessory, Powered USB Type-C Host Accessory.
USB Type-C Power Adapter
The TPS25821DSSR is well suited to a compact USB Type-C adapter because it combines source-role control with a 1.5A integrated power switch. Texas Instruments identifies the PMP40260 reference design as a USB Type-C adapter that can provide 5V at 1.5A and support legacy devices using DCP charging protocol behavior. The controller manages the Type-C source function while the switch controls the protected output path. This integration reduces board area in adapters where the 3 mm by 2 mm package is valuable. Designers should still select the input regulator, capacitors, connector, and protection components for the complete 5V power path, and should verify thermal performance while continuously sourcing 1.5A.
Được đề xuất
Compact USB Type-C Docking Accessory
A docking accessory can use the TPS25821DSSR to provide a controlled 5V source port alongside data or accessory functions. Its integrated 1.5A power switch simplifies the source-side implementation, while the 12-WSON package leaves additional board area for connector, protection, and interface circuitry. The -40°C to 125°C specified operating range supports designs expected to operate across broad industrial or commercial environmental conditions. Because the exposed pad provides a thermal path, the PCB should use an uninterrupted ground pour and adequate copper area. The connector, cable, and upstream supply must also support the intended current because the IC rating alone does not guarantee system-level charging performance.
Được đề xuất
Legacy USB Charging Adapter
The TPS25821 can be used in a USB Type-C adapter that also needs to support a legacy device with DCP charging protocol behavior, as described for the Texas Instruments PMP40260 reference design. The Type-C source controller establishes modern USB Type-C behavior, while the associated adapter circuitry can accommodate the legacy charging requirement. Its 1.5A power-switch capability provides a defined output-current ceiling for the 5V source path. In a mixed-compliance design, engineers should verify protocol timing, source advertisement, cable behavior, and charging-current negotiation against the applicable USB requirements rather than relying only on the nominal 1.5A switch rating.
Được đề xuất
Industrial USB Type-C Power Port
The TPS25821DSSR fits industrial equipment that exposes a USB Type-C port as a controlled 5V source. Its specified temperature range of -40°C to 125°C is a key fit factor for equipment operating across wide environmental conditions, and the integrated source controller and power switch reduce the number of discrete functional blocks. The 3 mm by 2 mm WSON package supports dense control boards. For industrial use, engineers should verify system-level ESD, surge, grounding, and fault-response requirements, as well as confirm whether the selected connector and enclosure can safely carry 1.5A continuously. The exposed pad should be soldered and connected to a low-impedance ground plane.
Được đề xuất
Portable Charging Accessory
A portable USB Type-C charging accessory benefits from the TPS25821DSSR because the controller and 1.5A power switch occupy a compact 12-WSON package. The device can organize the Type-C source connection and control the 5V output path in a space-constrained product. At the maximum nominal load, 5V and 1.5A correspond to 7.5W, so battery and upstream source capability must be checked separately. Thermal design should account for losses in the switch, connector contacts, and wiring rather than assuming the IC alone dissipates the entire system loss. An engineering sample should be evaluated with the intended cable and phone or tablet to confirm source advertising and current behavior.
Được đề xuất
Powered USB Type-C Host Accessory
The TPS25821DSSR can support a powered host accessory that needs a Type-C source port delivering a controlled 5V supply. Integrating the source controller with a 1.5A power switch allows the accessory to present a defined Type-C source behavior while keeping the implementation compact. The device is also useful where the powered accessory must interoperate with both modern Type-C equipment and legacy charging arrangements, subject to the additional circuitry required for legacy protocol support. Before release, verify compliance with the applicable USB Type-C requirements, test cold-plug and cable-orientation cases, and confirm that the host budget, connector, and PCB copper can sustain the selected operating current.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TPS25821DSSR — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | TPS25820DSSR |
|---|---|---|
| Package | 12-WSON (DSS), 3 mm x 2 mm | 12-WSON (DSS), 3 mm x 2 mm |
| Brand | Texas Instruments | Texas Instruments |
| Product Type | USB Type-C source controller and power switch | USB Type-C DFP controller |
Bảo phân biệt quan trọng
- Integrated Type-C source control and power switching (vsTPS25820DSSR)
- Compact 3 mm by 2 mm package (vsTPS25820DSSR)
- Broad specified operating range (vsTPS25820DSSR)
Ghi chú thiết kế
Connect the exposed pad to a low-impedance ground plane and minimize thermal resistance through the PCB. At the nominal 5V and 1.5A operating point, the output power is 7.5W, but the heat generated inside the IC is the power-switch conduction loss rather than the full output power. Review the datasheet on-resistance, temperature derating, and shutdown limits, then verify the assembled design with the worst-case input voltage, load, ambient temperature, and copper area.
Place the input and output capacitors close to the corresponding power-switch pins to minimize parasitic inductance and preserve switching-edge performance. Provide a continuous ground reference beneath the device and thermal pad, and route the high-current path with wide copper and minimal loop area. The verified material did not include the manufacturer-recommended capacitor values, so those values must be taken directly from the TPS25820/TPS25821 datasheet rather than inferred from generic USB designs.
Do not equate the 1.5A switch rating with guaranteed 1.5A delivered to every attached device. The upstream source, USB Type-C cable, connector contacts, PCB tracks, and thermal conditions can all limit usable current. Also verify Type-C source advertisement, orientation handling, fault response, and legacy charging behavior in the final adapter. The verified evidence establishes the 5V and 1.5A application example, but it does not provide every timing or protection threshold.
Thông tin tuân thủ
RoHS and REACH compliance are identified in the supplied TPS25821 comparison search results. No verified AEC-Q100, lead-free, halogen-free, or conflict-minerals statement was supplied.
