0.28A - 2.5A, adjustable ILIMIT, 2.5-5.5V, active-high enable power switch, 70 mOhm
Product details
Parameters
Package | Pins | Size
Features
- 2.5-V to 5.5-V VOPERATING
- Pin-to-Pin with TPS2553
- 2-A ICONT_MAX
- 0.275-A to 2.7-A Adjustable ILIMIT (±6.5% at 1.7 A)
- 70-mΩ (typical) RON
- 1.5-µs Short Circuit Response
- 8-ms Fault Reporting Deglitch
- Reverse Current Blocking (when disabled)
- Built-In Soft Start
- UL 60950 and UL 62368 Recognition
- 15-kV ESD Protection per IEC 61000-4-2 (with external capacitance)
All trademarks are the property of their respective owners.
Description
The TPS25221 is intended for applications where heavy capacitive loads and short circuits may be encountered. The programmable current-limit threshold maybe set between 275 mA and 2.7 A (typical) using an external resistor. ILIMIT accuracy as tight as ±6% can be achieved at the higher current-limit settings. Power-switch rise and fall times are controlled to minimize current surges during turn on and turn off.
When a load attempts to draw current exceeding the programmed ILIMIT the internal FET enters constant current mode in order to keep ILOAD at or below ILIMIT. The FAULT output will assert low during over-current conditions after the built in de-glitch time.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TPS25221 2.5-V to 5.5-V, 2-A Continuous Current Limited Switch datasheet (Rev. D) | Dec. 11, 2019 |
More literature | TPS25221 UL Certificate of Compliance IEC 62368-1 | Aug. 14, 2020 | |
User guide | TPS25221 Evaluation Module (Rev. A) | Sep. 23, 2019 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- Adjustable current limit
- High current limit accuracy
- Fast over current response
Design tools & simulation
Reference designs
Design files
-
download TIDA-050027 Assembly Drawing (Rev. A).pdf (222KB) -
download TIDA-050027 BOM (Rev. A).pdf (60KB) -
download TIDA-050027 Gerber (Rev. A).zip (974KB) -
download TIDA-050027 PCB (Rev. A).pdf (1236KB) -
download TIDA-050027 CAD Files.zip (1199KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOT-23 (DBV) | 6 | View options |
WSON (DRV) | 6 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.