My Inquiry
My Account
Texas Instruments TPS25221DRVR
- Part No.:
- TPS25221DRVR
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TPS25221DRVR.pdf
- Description:
- IC CURRENT SWITCH 6% 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:11,211
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS25221DRVR from Texas Instruments is a 2.5-V to 5.5-V, 2-A continuous current-limited power-distribution switch with programmable ILIM (0.275 A to 2.7 A), 70-mΩ typical RDS(on), 1.5-µs short-circuit response, and active-low open-drain FAULT output - designed for USB port protection in laptops, hubs, and set-top boxes.
For engineers reviewing the TPS25221DRVR datasheet, TPS25221DRVR pinout, TPS25221DRVR application, or TPS25221DRVR equivalent, key selection considerations include adjustable overcurrent threshold via external RILIM, reverse-current blocking when disabled, built-in soft-start, UL 60950/62368 recognition, and thermal shutdown with 20°C hysteresis.
Technical Context
The TPS25221DRVR integrates an N-channel MOSFET power switch with internal charge pump gate drive, enabling full enhancement down to 2.5-V input. Its current-limit loop dynamically modulates gate voltage to maintain constant IOUT at the programmed threshold during overload, reducing VOUT proportionally to RLOAD.
It features dual thermal protection: 145°C current-limit-triggered cycling and 165°C immediate shutdown with independent hysteresis. The 8-ms deglitched FAULT output suppresses transient false alarms while asserting immediately on overtemperature events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 2.5 V to 5.5 V - supports USB 2.0/3.0 bus-powered operation without external LDO |
| ICONT_MAX | 2 A continuous - sustains full load under worst-case thermal conditions with WSON package |
| ILIM Range | 0.275 A to 2.7 A ±6.5% at 1.7 A - set by single external resistor (20 kΩ–210 kΩ) for precise system-level current budgeting |
| RDS(on) | 70 mΩ typical (WSON) - minimizes conduction loss and self-heating at 2 A (PLOSS ≈ 280 mW) |
| tIOS | 1.5 µs - enables fast short-circuit detection before downstream capacitors discharge catastrophically |
| FAULT Response | 8-ms deglitch - prevents false triggering during hot-plug or bulk capacitor inrush |
| UVLO Threshold | 2.37 V rising, 45 mV hysteresis - ensures clean turn-on/turn-off without oscillation near brownout |
Pinout & Package
TPS25221DRVR uses the DRV (WSON-6) package: 2.00 mm × 2.00 mm body with exposed thermal pad internally connected to GND. Thermal pad must be externally soldered to PCB ground plane for reliable 2-A operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 6) | Power input and MOSFET drain | Connects to 5-V USB bus; requires ≥0.1 µF ceramic decoupling close to pin |
| GND (Pin 5) | Ground reference and thermal sink | Reference for all signals; thermal pad must be tied to PCB GND for thermal performance |
| EN (Pin 4) | Enable control input | Active-high TTL/CMOS-compatible; <0.5 µA quiescent current when disabled |
| FAULT (Pin 3) | Open-drain fault indicator | Asserts low during overcurrent or overtemperature; requires external pull-up |
| ILIM (Pin 2) | Current-limit programming node | Sinks regulated current; sets ILIM via resistor to GND (20 kΩ–210 kΩ) |
| OUT (Pin 1) | Switched output and MOSFET source | Drives load; reverse-current blocking active when EN = low |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable current limit | Set precisely from 275 mA to 2.7 A using one external resistor - eliminates need for multiple fixed-limit parts |
| Built-in soft start | Controlled rise/fall times (0.35–0.95 ms) limit inrush into heavy capacitive loads like USB hubs (≥120 µF) |
| Reverse current blocking | Prevents backfeed from OUT to IN when EN = low - protects upstream USB host during device removal |
| UL recognition | UL 60950 and UL 62368 certified - simplifies end-equipment safety compliance for USB-powered systems |
| ESD robustness | ±15-kV air-gap ESD per IEC 61000-4-2 - withstands handling and connector mating without external protection |
Applications
| USB Hub Port Protection | Laptop USB-C Power Delivery Interface |
|---|---|
Use Scenario: Protects individual downstream-facing ports (DFPs) in self-powered USB 3.0 hubs against short circuits and hot-plug inrush. IC Role / Device Role / Timing Role: Current-limited power switch placed between USB VBUS and port connector; provides fault isolation and current budgeting per port. Use Value: Enables hub compliance with USB specification requiring ≥120 µF bypass per port while preventing bus droop during simultaneous port faults. |
Use Scenario: Controls power delivery to USB-C receptacles in thin-and-light laptops where space-constrained layout demands minimal BOM count. IC Role / Device Role / Timing Role: Acts as primary overcurrent protector on VBUS path before PD controller; responds within 1.5 µs to shorts on cable or peripheral. Use Value: Eliminates need for discrete FET + sense resistor + comparator solution, reducing footprint by >40% and improving accuracy vs. discrete alternatives. |
| Set-Top Box USB Peripheral Port | HDTV HDMI-CEC Auxiliary Power Switch |
Use Scenario: Powers USB peripherals (Wi-Fi dongles, storage) in consumer STBs where firmware cannot manage port current limits. IC Role / Device Role / Timing Role: Standalone current limiter on 5-V rail feeding USB receptacle; FAULT signal alerts SoC of overload without polling. Use Value: Prevents system reset due to USB peripheral short while enabling automatic recovery after fault removal - no host intervention required. |
Use Scenario: Supplies controlled 5-V power to HDMI-CEC circuitry and auxiliary functions in smart TVs, isolating CEC from main 5-V rail faults. IC Role / Device Role / Timing Role: Low-RDS(on) switch enabling always-on CEC functionality with reverse-current blocking during standby. Use Value: Ensures CEC remains operational during TV standby while blocking leakage from HDMI port back into main power domain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-limiting power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2553DBVR | Pin-to-pin compatible SOT-23-6 variant; higher RDS(on) (110 mΩ typ); same ILIM range and FAULT behavior | Lower thermal performance limits continuous current to 1.5 A in ambient air; suitable for space-constrained but lower-power designs | Select TPS2553DBVR only if board area is critical and 1.5-A max load suffices; TPS25221DRVR preferred for 2-A sustained operation. |
| TPS259211RGER | Higher integration: includes true reverse-current blocking, adjustable UVLO, and higher accuracy (±3% ILIM); 32-V abs max rating | Overqualified for 5-V USB use; larger WQFN-20 package; higher cost; targets industrial 12–24-V systems | Choose TPS259211RGER only if future-proofing for wider input range or tighter current tolerance is required; not drop-in for USB 5-V. |
Compared with TPS2553DBVR, TPS25221DRVR delivers 33% higher continuous current in same footprint class due to WSON thermal advantage; versus TPS259211RGER, it offers optimal cost/performance balance for dedicated 5-V USB protection without feature bloat.
Availability
TPS25221DRVR is available at Aetrix Electronics and suitable for USB port protection, laptop peripheral power management, and set-top box peripheral interfaces requiring stable component supply across production lifecycles.
Supply support for TPS25221DRVR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and connectivity technologies with broad industrial and consumer design support infrastructure.
The TPS25221DRVR belongs to TI's USB power-switch product line, engineered specifically for robust, standards-compliant protection of 5-V USB ports in space- and thermal-constrained consumer electronics.
FAQ
What is the maximum continuous output current supported by the TPS25221DRVR?
The TPS25221DRVR supports 2 A continuous output current under recommended operating conditions with proper PCB thermal design. This rating assumes use of the WSON-6 package with thermal pad soldered to a minimum 100-mm² copper pour. At 2 A and 5 V, junction temperature remains below 125°C with ≤20°C/W board-level thermal resistance.
How do I set the current-limit threshold for the TPS25221DRVR?
Set the TPS25221DRVR current-limit threshold by connecting a precision 1% resistor (RILIM) between the ILIM pin (Pin 2) and GND. Values from 20 kΩ to 210 kΩ yield ILIM from 2.7 A down to 275 mA. For example, 30 kΩ sets ~1.8 A (±6.5% at 1.7 A). Keep RILIM traces short to avoid noise-induced errors.
Does the TPS25221DRVR provide reverse-current blocking?
Yes, the TPS25221DRVR provides reverse-current blocking when disabled (EN = low). The internal N-channel MOSFET body diode is back-biased, preventing current flow from OUT to IN. This protects upstream USB hosts during hot removal of peripherals and avoids backfeeding into shared 5-V rails.
What is the purpose of the FAULT pin on the TPS25221DRVR?
The FAULT pin on the TPS25221DRVR is an active-low open-drain output that asserts during overcurrent or overtemperature events. It includes 8-ms deglitching to ignore transient inrush, ensuring reliable fault reporting. The pin requires an external pull-up resistor and can directly interface with microcontroller GPIOs for system-level fault logging and recovery.
Can the TPS25221DRVR operate from a 2.5-V input supply?
Yes, the TPS25221DRVR operates from 2.5 V to 5.5 V input. Its internal charge pump enables full gate drive of the N-channel MOSFET even at 2.5 V, maintaining specified RDS(on) and current-limit accuracy. UVLO ensures clean startup above 2.37 V, making it suitable for battery-backed or low-voltage USB applications.
TPS25221DRVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Current Switch
- Sensing Method:
- -
- Accuracy:
- ±6%
- Voltage - Input:
- 2.5V ~ 5.5V
- Current - Output:
- 2A
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (2x2)
TPS25221DRVR FAQ
1.How can I place an order for TPS25221DRVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS25221DRVR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS25221DRVR reliable?
The price and inventory of TPS25221DRVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS25221DRVR is usually 5 days.
3.What payment methods are accepted for TPS25221DRVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS25221DRVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS25221DRVR?
TPS25221DRVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS25221DRVR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS25221DRVR?
For technical support, including TPS25221DRVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS25221DRVR requirements.
6.How does Aetrix verify that TPS25221DRVR is sourced from the original manufacturer or authorized distributors?
All TPS25221DRVR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS25221DRVR meets industry standards.
7.What is the process for return or replacement of TPS25221DRVR?
All TPS25221DRVR units undergo pre-shipment inspection (PSI). If there is an issue with TPS25221DRVR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS25221DRVR part is unused and in its original packaging.
Return procedure for TPS25221DRVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS25221DRVR Tags
.jpg)
-
PSSI2021SAY,115
Nexperia USA Inc.
-
BCR401RE6327HTSA1
Infineon Technologies
-
INA199B2DCKR
Texas Instruments
-
INA199A1DCKR
Texas Instruments
-
INA199B1DCKR
Texas Instruments
-
NSI45015WT1G
onsemi
-
NSI45020T1G
onsemi
-
NSI45030AT1G
onsemi
-
NSI45025AT1G
onsemi
-
NSI45020AT1G
onsemi
-
NSI50010YT1G
onsemi
-
LM334Z/NOPB
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
