TPS25814RSMR - USB Type-C Controller with Integrated Source Power Switch | Texas Instruments
MPN: TPS25814RSMR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.56 | $25.60 |
| 100 | $2.28 | $228.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.82 | $1,820.00 |
TPS25814RSMR Overview
A USB Type-C controller is a specialized power management IC (PMIC) that manages the USB Type-C attachment, orientation (CC1/CC2 polarity), and cable role detection. It sits between the system power supply (typically a 5V rail) and the USB Type-C connector, negotiating VBUS current advertisement and protecting the system from fault conditions on the connector pins. The TPS25814 belongs to the USB interface IC hierarchy: USB Type-C controller -> USB interface IC -> interface IC -> power management IC -> semiconductor.
Key features include integrated source power switch with current limiting, USB Type-C cable detection, VBUS short-to-VBUS and short-to-GND protection on CC pins, two status indicator outputs (PORT and CABLE), and a wide input supply range from 4.5V to 36V. The device also offers thermal shutdown, reverse-current blocking, and an industry-standard VQFN-32 footprint that simplifies PCB layout for compact Type-C source applications.
The TPS25814 uses a smart detection state machine that monitors the CC1 and CC2 pins to detect attach, orientation, and Type-C accessory modes, then advertises the configured current to the sink device. The integrated N-channel MOSFET source switch with low on-resistance minimizes power dissipation during VBUS delivery, while the built-in protection circuitry guards against ESD and over-current events common in user-facing ports.
Typical applications include USB Type-C source ports in industrial PCs, single-board computers, USB-C wall adapters, automotive infotainment USB ports, and any system requiring a simple 5V VBUS source from a Type-C receptacle. The device is commonly used in printer docking stations, point-of-sale terminals, and embedded computing modules where a small-footprint, fully integrated Type-C source is required.
When designing with this device, ensure input capacitance meets USB Type-C source requirements (typically 10uF minimum on VBUS) and select appropriate current advertisement pull-up values for default-current, medium-current, or high-current modes. The PORT and CABLE indicator pins can drive external LEDs or GPIOs to inform the host MCU about attachment state without additional I/O expanders.
This page synthesizes distributor pricing, drop-in same-brand variants, and practical design considerations not consolidated in the manufacturer datasheet, giving engineers a single reference for sourcing, replacement, and application guidance.
Drop-in alternatives for TPS25814RSMR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TPS25814RSMT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TPS25814RSMRG4
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TPS25814RSMR Maximum Ratings & Electrical Characteristics
| Function | USB Type-C controller with integrated source power switch |
| Operating Supply Voltage | 4.5 V to 36 V |
| Output Voltage (VBUS) | 5 V typ. |
| Source Current (VBUS) | Up to 3 A continuous |
| USB Type-C Port Support | 1 port, source mode |
| Cable Orientation Detection | CC1/CC2 automatic |
| CC Pin Protection | VBUS short-to-GND and short-to-VBUS tolerant |
| Status Indicator Pins | PORT, CABLE |
| Thermal Shutdown | Yes |
| Operating Temperature | -40C to +125C |
| Package | VQFN-32 (RSM) 4x4 mm |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| ESD Protection | Yes (per datasheet) |
TPS25814RSMR vqfn-32 (rsm) 4x4 mm Pin Configuration Guide
Pin configuration for TPS25814RSMR (vqfn-32 (rsm) 4x4 mm package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for TPS25814RSMR.
Refer to the datasheet for full pin configuration.
Typical Applications
TPS25814RSMR is suitable for 7 applications: USB Type-C Source Port in Industrial PCs, Single-Board Computer USB-C Power Output, USB-C Wall Adapter / Power Brick, Automotive Infotainment USB Port, Point-of-Sale Terminal USB-C Interface, Embedded Computing Module Docking Station, Industrial Printer USB-C Service Port.
USB Type-C Source Port in Industrial PCs
The TPS25814RSMR's 4.5V to 36V wide input range and integrated 3A source switch make it ideal for industrial PCs that deliver 5V VBUS from a 12V or 24V internal rail. Cable plug and orientation detection is automatic via CC1/CC2, eliminating the need for an external MCU. Typical designs place the device between the system 12V rail and the Type-C receptacle with a 10uF VBUS bulk capacitor, while the PORT and CABLE indicator outputs drive external LEDs or an MUX control pin. The integrated VBUS short protection on the CC pins reduces BOM by removing external TVS arrays, important for factory-floor environments with frequent cable wear.
Recommended
Single-Board Computer USB-C Power Output
Single-board computers such as Raspberry Pi-class industrial variants use the TPS25814RSMR to add a 5V/3A USB-C source port directly from the board's 5V rail. The stand-alone operation means no host firmware changes are needed for cable detection and power path enablement. Designers benefit from the small 4x4 mm VQFN-32 footprint, which fits underneath most Type-C connector shields, and the PORT/CABLE pins that can be wired to GPIOs for OS-level event notification. VBUS short-to-GND and short-to-VBUS protection on CC pins prevents damage during accidental shorts at the user-facing connector.
Recommended
USB-C Wall Adapter / Power Brick
Fixed-output USB-C wall adapters use the TPS25814RSMR as the source-side controller, advertising fixed 5V at 3A through the CC pull-up configuration. The wide 4.5V-36V input range accepts rectified AC outputs directly from small flyback transformers without pre-regulation, simplifying the BOM. The integrated power switch eliminates the need for an external MOSFET and its associated gate driver, while built-in thermal shutdown protects against overload. Designers can use the CABLE indicator output to drive an LED that confirms cable attachment to the user.
Recommended
Automotive Infotainment USB Port
In automotive infotainment head units, the TPS25814RSMR delivers a robust 5V Type-C source port directly from the 12V battery rail, tolerating load-dump transients up to 36V. The integrated VBUS short protection on the CC pins withstands the harsh automotive connector mating environment where bent pins or debris may short VBUS to ground. PORT and CABLE status outputs interface with the head-unit MCU to drive on-screen connection icons. Designers should add external reverse-battery and load-dump protection upstream of the device per automotive EMC requirements.
Recommended
Point-of-Sale Terminal USB-C Interface
POS terminals use the TPS25814RSMR to expose a Type-C source port for powering barcode scanners, customer-facing displays, or mobile payment terminals. The stand-alone cable detection reduces the host CPU's interrupt load, while the small VQFN-32 4x4 mm package fits inside the cramped POS chassis. VBUS current advertisement is configured via external CC pull-up resistors to match each peripheral's negotiated current. The integrated thermal shutdown protects the device during sustained 3A loads at elevated ambient temperatures near the printer assembly.
Recommended
Embedded Computing Module Docking Station
Docking stations for embedded compute modules use the TPS25814RSMR as a downstream-facing USB-C source port that powers connected peripherals and recharges laptops or tablets. The wide input voltage range accepts docking-station internal 12V or 19V rails directly without a buck converter, while the integrated source switch reduces BOM count compared to discrete solutions. PORT and CABLE outputs can be routed to the dock's main controller to report attach events for upstream billboard enumeration. The 4x4 mm VQFN-32 footprint leaves room for high-density PCB layouts with multiple Type-C ports.
Recommended
Industrial Printer USB-C Service Port
Industrial label and receipt printers include a Type-C service port for configuration and firmware updates, and the TPS25814RSMR provides a self-contained 5V source without host intervention. Cable detection happens automatically through CC1/CC2 monitoring, while the CABLE indicator can drive an LED visible to the technician confirming successful attachment. The wide operating temperature range of -40C to +125C supports factory-floor environments, and the integrated thermal shutdown prevents damage during sustained VBUS loads. Designers benefit from the small footprint that fits underneath the Type-C jack on the printer's main PCB.
Recommended
Recommended Products Summary
Engineering reference data for TPS25814RSMR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS25814RSMT | TPS25814RSMRG4 |
|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | VQFN-32 (RSM) 4x4 mm | VQFN-32 (RSM) 4x4 mm - same | VQFN-32 (RSM) 4x4 mm - same |
| Function | USB Type-C source controller + integrated switch | USB Type-C source controller + integrated switch | USB Type-C source controller + integrated switch |
| Input Voltage Range | 4.5 V to 36 V | 4.5 V to 36 V | 4.5 V to 36 V |
| VBUS Current (max) | 3 A continuous | 3 A continuous | 3 A continuous |
| Type-C Ports Supported | 1 (source) | 1 (source) | 1 (source) |
| Status Indicator Pins | PORT, CABLE | PORT, CABLE | PORT, CABLE |
| CC Pin VBUS Short Protection | Yes | Yes | Yes |
| Reel Orientation | Standard (RSMR) | Reversed (RSMT) | Standard (RSMR), G4 green/RoHS |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C |
Key Differentiators
- Wide input voltage range eliminates pre-regulation (vs TPS25814RSMT)
- Integrated VBUS short protection on CC pins (vs TPS25814RSMT)
- Standard reel orientation for high-volume assembly (vs TPS25814RSMT)
Design Notes
Estimated: the TPS25814RSMR integrates a source power switch with up to 3A continuous VBUS current. Designers should provide a minimum 10uF VBUS bulk capacitor at the connector per USB Type-C specification to handle transient load steps. The 4.5V to 36V wide input range allows direct connection to 12V/24V industrial rails without pre-regulation, reducing BOM. For sustained 3A output, verify that PCB copper area on the OUT/VBUS node is sufficient to keep trace temperature rise below 30C.
Estimated: at maximum 3A VBUS output with the internal source switch, power dissipation equals I^2 * Rds(on). The VQFN-32 4x4 mm package relies on the exposed thermal pad for heat dissipation - designers MUST solder the thermal pad to a copper pour with thermal vias to the inner ground plane. Without proper thermal management, the device will enter thermal shutdown at high ambient temperatures with sustained loads. Refer to the TI datasheet thermal performance section for theta_JA values.
Place CC1 and CC2 traces as short and symmetrical as possible to ensure reliable cable detection. Route VBUS traces with adequate copper width to handle 3A continuous current - typically 0.8 mm to 1.2 mm trace width on outer layers, or use copper pours. Keep the exposed thermal pad soldered to a continuous ground plane with multiple thermal vias (typically 9-16 vias in a 3x3 or 4x4 grid) for heat spreading.
Common pitfalls: (1) forgetting the VBUS bulk capacitor (minimum 10uF per USB Type-C spec) causes transient under-voltage faults; (2) not soldering the thermal pad causes thermal shutdown under load; (3) incorrect CC pull-up resistor values result in wrong current advertisement to the sink; (4) using the wrong reel orientation suffix (RSMR vs RSMT) disrupts high-volume pick-and-place assembly. Always verify the order code matches the assembly line's tape orientation requirements.
Place the TPS25814RSMR as close as possible to the USB Type-C receptacle to minimize high-current VBUS trace length and CC trace impedance. Keep the CC1 and CC2 lines away from noisy switching nodes and route them as differential pairs with matched length. Add a 0.1uF ceramic bypass capacitor adjacent to the IN pin and a 1uF to 10uF bulk capacitor on VBUS for stable operation.
Compliance Information
RoHS compliant per TI product page. The RSM suffix indicates standard reel; the G4 suffix indicates green/RoHS-compliant tape. Not AEC-Q100 qualified.
