TPS25820DSST USB Type-C Source Controller | 1.5A VBUS Switch | Texas Instruments
MPN： TPS25820DSST ✓ 啟用中TPS25820DSST 概覽
A USB Type-C source controller is an interface IC that manages the behavior of a USB Type-C port configured as a source or downstream-facing port. It coordinates the CC and VCONN signaling required for USB Type-C power-advertisement and accessory detection while an integrated power switch controls current on the VBUS rail. In the broader hierarchy, the TPS25820DSST is a USB interface controller, power-management IC, and integrated power switch.
The main verified features include a 4.5 V to 5.5 V operating supply range, an integrated 1.5 A-rated USB VBUS power switch, 12-pin WSON packaging, and an extended -40°C to +125°C temperature range. The integrated switch can reduce the number of separate power-path components required in a compact Type-C source design, while the controller provides the device-level functionality required to negotiate a Type-C connection.
The TPS25820DSST is positioned for compact USB Type-C source designs where VBUS current is limited to the integrated 1.5 A switch rating. Its 3 mm by 2 mm WSON package supports high-density PCB layouts, but careful placement of input, output, ground, and exposed-pad connections is important for electrical performance and heat spreading. The operating range of -40°C to +125°C makes the device suitable for designs intended to operate across industrial temperature conditions.
Typical applications include USB Type-C docking stations, compact USB Type-C power adapters, multiport chargers, laptop and tablet accessories, and embedded USB Type-C equipment that supplies up to 1.5 A on VBUS. System designers should verify the complete USB Type-C power profile, connector requirements, cable current rating, thermal conditions, and protection requirements before production release.
For a new layout, place the VBUS input and switched VBUS output paths with short, low-impedance copper connections, and provide the local bypass and input/output capacitors required by the manufacturer datasheet. Confirm that downstream loads, inrush behavior, and cable length do not exceed the verified operating limits. The integrated switch simplifies the power path, but it does not remove the need for correct USB Type-C signaling and thermal design.
This product record combines the verified manufacturer and distributor information with package-specific replacement analysis and engineering-oriented design guidance. It is intended to help engineers distinguish true same-footprint alternatives from functionally similar devices that require PCB changes.
直接替換替代品，適用於 TPS25820DSST — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： TPS25820DSST （相同外形與佔位） — 差異在於 Package, Maximum Operating Temperature, Minimum Operating Temperature, Operating Temperature Range, VCONN Support.
TPS25820DSSR
✅ 直接替換聯絡詢價
查看資料表 →TPS25821DSSR
✅ 直接替換聯絡詢價
查看資料表 →TPS25821DSST
✅ 直接替換聯絡詢價
查看資料表 →TPS25820DSST 最大額定值與電氣特性
| Product Type | USB Type-C source controller and power switch |
| Integrated VBUS Switch Current | 1.5 A |
| Supply Voltage Range | 4.5 V to 5.5 V |
| 封裝 | 12-WSON (DSS), 3 mm x 2 mm |
| 腳位數 | 12 pins |
| 安裝類型 | Surface mount |
| 工作溫度範圍 | -40°C to +125°C |
| Product Status | Active |
| VCONN Support | Supported |
| USB Interface | USB Type-C |
| Application Category | Controller Interface |
| Manufacturer Evaluation Module | TPS25820EVM-835 |
TPS25820DSST 12-wson (dss), 3 mm x 2 mm 腳位配置指南
TPS25820DSST（12-wson (dss), 3 mm x 2 mm 封裝）的腳位配置。 此功率元件具有閘極、汲極與源極端子。對於非極性封裝，請參閱製造商資料表以取得確切的第 1 腳方向與佈局詳細資訊。常見應用包括電源設計、馬達驅動與負載切換。
無詳細腳位定義資料： TPS25820DSST.
請參閱 資料表 以查看完整腳位配置。
典型應用
TPS25820DSST 適用於 6 應用s: USB Type-C Docking Stations, Compact USB Type-C Power Adapters, Multiport USB Type-C Chargers, Laptop and Tablet Accessories, Embedded USB Type-C Equipment, USB Type-C Power-Source Test Equipment.
USB Type-C Docking Stations
The TPS25820DSST fits compact USB Type-C docking stations because it combines source-port control, VCONN support, and an integrated 1.5 A VBUS switch in a 12-pin WSON package. Placing the controller near the USB Type-C receptacle can shorten sensitive signaling paths while keeping the switched VBUS connection direct. The 3 mm by 2 mm footprint saves board area in multiport docks, although the verified 1.5 A rating limits each switched source path. Designers must also verify the dock's required USB Type-C power profile, cable-current capability, exposed-pad heat spreading, and whether downstream loads can exceed the integrated switch rating.
推薦
Compact USB Type-C Power Adapters
The TPS25820DSST is appropriate for compact adapters that expose a USB Type-C source port and remain within the integrated 1.5 A VBUS-switch rating. Its 4.5 V to 5.5 V operating range and integrated switching function can simplify the primary source power path while occupying only a 3 mm by 2 mm package area. The design must account for adapter startup behavior, inrush, output protection, and the current capability of the selected cable. Engineers should also use adequate exposed-pad copper and local bypass capacitance according to the official manufacturer layout guidance.
推薦
Multiport USB Type-C Chargers
The TPS25820DSST can support an individually switched USB Type-C source port in a multiport charger because its integrated VBUS power switch is rated for 1.5 A. The compact DSS package allows several port circuits to be placed near their respective connectors, reducing board area in dense charger products. Each port must be evaluated independently for total load, startup sequencing, thermal interaction, and connector requirements. The controller's 4.5 V to 5.5 V supply range also makes it suitable for systems using a regulated internal 5 V source, subject to confirmation of the complete power architecture.
推薦
Laptop and Tablet Accessories
The TPS25820DSST is suitable for laptop and tablet accessories that provide a controlled USB Type-C source connection without requiring a larger multi-protocol charger architecture. Its integrated 1.5 A VBUS switch establishes a defined current path, while the small 3 mm by 2 mm package preserves space for connector mechanics, thermal structures, and secondary circuitry. The accessory still needs verified Type-C behavior, suitable cable and connector ratings, and adequate protection against overload or short-circuit events. Engineers should validate the complete accessory against the target host's advertised power and negotiation expectations.
推薦
Embedded USB Type-C Equipment
The TPS25820DSST fits embedded equipment that needs a compact Type-C source port for service, configuration, or peripheral power. Its -40°C to +125°C operating range supports designs spanning industrial and extended-temperature environments, while the 1.5 A integrated switch covers the verified current class. System integrators must determine whether a dedicated source-only function meets the product's USB requirements or whether a dual-role interface is needed. Layout review should preserve short VBUS connections, provide a stable 4.5 V to 5.5 V supply, and connect the exposed pad to an effective thermal path.
推薦
USB Type-C Power-Source Test Equipment
The TPS25820DSST can be used in USB Type-C power-source test equipment or development boards because the manufacturer offers the TPS25820EVM-835 as an evaluation module. The integrated 1.5 A switch and source-controller functions allow engineers to evaluate Type-C port behavior without building every power-path function as discrete circuitry. The evaluation module can also serve as a reference for component placement, thermal management, and VBUS routing. Production test fixtures still require separate instrumentation, safe current limits, and procedures that do not exceed the published 1.5 A switch rating.
推薦
推薦產品摘要
工程參考資料，適用於 TPS25820DSST — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | TPS25820DSSR | TPS25821DSSR | TPS25821DSST |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 12-WSON (DSS), 3 mm x 2 mm | 12-WSON (DSS) | 12-WSON (DSS) | 12-WSON (DSS) |
| Product Type | USB Type-C source controller and power switch | USB Type-C source controller | USB Type-C source controller | USB Type-C source controller |
| Integrated VBUS Switch Current | 1.5 A | 1.5 A | 1.5 A | 1.5 A |
| Supply Voltage Range | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| VCONN Support | Yes | Yes | Yes | Yes |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
| Pin Count | 12 pins | 12 pins | 12 pins | 12 pins |
主要差異化特點
- Integrated source control and VBUS switching (對比TPS25820DSSR)
- Compact WSON implementation (對比TPS25821DSSR)
- Extended-temperature operating range (對比TPS25821DSST)
設計說明
Route the input and switched output VBUS paths with short, wide copper traces to minimize parasitic resistance and voltage drop. Place local input and output bypass capacitors close to their associated device pins using the manufacturer datasheet's recommended values and layout. The 3 mm by 2 mm WSON package offers little space for routing errors, so footprint geometry, exposed-pad access, and paste design should be reviewed against the latest TI land pattern.
Connect the exposed pad to a properly sized thermal-via array and uninterrupted PCB copper planes so heat from the integrated 1.5 A switch can spread away from the control circuitry. Copper area, via count, airflow, ambient temperature, and load duration determine thermal performance. Confirm the final junction-temperature margin using the manufacturer thermal data and the worst-case load rather than relying on the nominal switch-current rating alone.
Do not treat the TPS25820DSST as a universal USB Type-C controller replacement without checking CC behavior, VCONN requirements, advertisement policy, power-path topology, and exact pin functions. The supplied source excerpts establish the controller, 1.5 A switch, VCONN support, and package, but not the complete pinout. Obtain the official datasheet and verify every connection before releasing a PCB revision.
Validate the 4.5 V to 5.5 V input range against startup, load-transient, and source behavior throughout the complete operating state. The integrated VBUS switch simplifies the power path, but the design must still account for cable and connector current ratings, inrush, overload behavior, and any protection components. Use the TPS25820EVM-835 as a reference for the intended implementation, then adapt the layout to the product's mechanical and thermal constraints.
合規資訊
The provided verified excerpts identify the device as an active Texas Instruments component but do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. No compliance status has been assumed.
