
TPS25221 Series
0.275-2.7A adj. ILIMIT, 2.5-5.5V, 70mΩ USB power switch, active-high, reverse blocking
Manufacturer: Texas Instruments
Catalog
0.275-2.7A adj. ILIMIT, 2.5-5.5V, 70mΩ USB power switch, active-high, reverse blocking
Key Features
• 2.5-V to 5.5-V VOPERATINGPin-to-Pin withTPS25532-A ICONT_MAX0.275-A to 2.7-A Adjustable ILIMIT(±6.5% at 1.7 A)70-mΩ (typical) RON1.5-µs Short Circuit Response8-ms Fault Reporting DeglitchReverse Current Blocking (when disabled)Built-In Soft StartUL 60950 and UL 62368 Recognition15-kV ESD Protection per IEC 61000-4-2 (with external capacitance)2.5-V to 5.5-V VOPERATINGPin-to-Pin withTPS25532-A ICONT_MAX0.275-A to 2.7-A Adjustable ILIMIT(±6.5% at 1.7 A)70-mΩ (typical) RON1.5-µs Short Circuit Response8-ms Fault Reporting DeglitchReverse Current Blocking (when disabled)Built-In Soft StartUL 60950 and UL 62368 Recognition15-kV ESD Protection per IEC 61000-4-2 (with external capacitance)
Description
AI
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. ILIMITaccuracy 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 ILIMITthe internal FET enters constant current mode in order to keep ILOADat or below ILIMIT. TheFAULToutput will assert low during over-current conditions after the built in de-glitch time.
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. ILIMITaccuracy 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 ILIMITthe internal FET enters constant current mode in order to keep ILOADat or below ILIMIT. TheFAULToutput will assert low during over-current conditions after the built in de-glitch time.