TPS2557-Q1

www.ti.com TPS2556-Q1, TPS2557-Q1 SLVSC97B – MARCH 20T14P–SR2E5V5I6S-EQD1S,ETPPTESM2B5E5R72-Q0210 SLVSC97B – MARCH 2014 – REVISED SEPTEMBER 2020 TPS255x-Q1 Precision Automotive Adjustable Current-Limited Power-Distribution Switches 1 Features AEC-Q100 Qualified – Device HBM ESD Classification Level H2 – Device CDM ESD Classification Level C5 Functional Safety-Capable – Documentation available to aid functional safety system design Meets USB current-limiting requirements Adjustable current limit, 500 mA – 5 A (typ.) ±6.5% current-limit accuracy at 4.5 A Fast short-circuit response – 3.5 μs (typ.) 22-mΩ high-side MOSFET Operating range: 2.5 V to 6.5 V 2-μA maximum standby supply current Built-in soft-start 15-kV and 8-kV system-level ESD capable Safety-related certifications: – UL Recognized for UL 2367 – CB Certification for IEC 60950 – CB Certification for IEC 62368 2 Application Automotive USB Charging Ports 3 Description The TPS2556-Q1 and TPS2557-Q1 powerdistribution switches are specialized for automotive applications which require precision current limiting or capacity to handle heavy capacitive loads and short circuits. These devices offer a programmable currentlimit threshold between 500 mA and 5 A (typical) via an external resistor. Control of the power-switch rise and fall times minimizes current surges during turnon or turnoff. TPS2556-Q1 and TPS2557-Q1 devices limit the output current to a safe level by switching into a constant-curre...