TPS25821DSSR - 1.5A USB Type-C Source Controller | Texas Instruments
MPN: TPS25821DSSR ✓ فعالTPS25821DSSR نمای کلی
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.
جایگزین‌های drop-in برای TPS25821DSSR — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای TPS25821DSSR (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, VCONN Support.
TPS25820DSSR
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←TPS25821DSSR حداکثر مقادیر مجاز و مشخصات الکتریکی
| 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 |
| بسته‌بندی | 12-WSON (DSS), 3 mm x 2 mm |
| تعداد پایه | 12 pins |
| Exposed Pad | Present |
| نوع نصب | 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 |
| وضعیت RoHS | Compliant |
| REACH Status | Compliant |
راهنمای پیکربندی پین TPS25821DSSR 12-wson (dss), 3 mm x 2 mm
پیکربندی پین برای TPS25821DSSR (پکیج 12-wson (dss), 3 mm x 2 mm). این قطعه قدرت دارای پایانه‌های گیت، درین و سورس است. برای پکیج‌های غیرقطبی، برای جهت دقیق پین ۱ و جزئیات فوت‌پرینت به دیتاشیت سازنده مراجعه کنید. کاربردهای رایج شامل طراحی منبع تغذیه، درایو موتور و سوئیچینگ بار است.
داده پین‌آوت تفصیلی موجود نیست برای TPS25821DSSR.
به دیتاشیت برای پیکربندی کامل پین‌ها.
کاربردهای معمول
TPS25821DSSR مناسب است برای 6 کاربردs: 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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای TPS25821DSSR — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | 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 |
تفاوت‌های کلیدی
- Integrated Type-C source control and power switching (در مقابلTPS25820DSSR)
- Compact 3 mm by 2 mm package (در مقابلTPS25820DSSR)
- Broad specified operating range (در مقابلTPS25820DSSR)
یادداشت‌های طراحی
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.
اطلاعات انطباق
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.
