TPS25820DSST USB Type-C Source Controller | 1.5A VBUS Switch | Texas Instruments
料号： TPS25820DSST ✓ 量产中TPS25820DSST 概述
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.
直接替换替代料： TPS25820DSST ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： TPS25820DSST （相同外形与封装尺寸） ——差异在于 Package, Maximum Operating Temperature, Minimum Operating Temperature, Operating Temperature Range, VCONN Support.
TPS25820DSSR
✅ 直接替换联系询价
查看数据手册 →TPS25821DSSR
✅ 直接替换联系询价
查看数据手册 →TPS25821DSST
✅ 直接替换联系询价
查看数据手册 →TPS25820DSST 最大额定值与电气特性
| 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 |
| 封装 | 12-WSON (DSS), 3 mm x 2 mm |
| 引脚数量 | 12 pins |
| 安装类型 | Surface mount |
| 工作温度范围 | -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 引脚配置指南
TPS25820DSST（12-wson (dss), 3 mm x 2 mm 封装）的引脚配置。 该功率器件具有栅极、漏极和源极端子。对于无极性封装，请参阅制造商数据手册以了解确切的引脚 1 方向和封装尺寸细节。常见应用包括电源设计、电机驱动和负载开关。
暂无详细引脚数据： TPS25820DSST.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TPS25820DSST 适用于 6 应用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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： TPS25820DSST ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Integrated source control and VBUS switching （对比 TPS25820DSSR)
- Compact WSON implementation （对比 TPS25821DSSR)
- Extended-temperature operating range （对比 TPS25821DSST)
设计说明
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.
合规信息
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.
