The TPS2556-Q1 and TPS2557-Q1 power-distribution 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 current-limit 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-current mode when the output load exceeds the current-limit threshold. The FAULT logic output asserts low during overcurrent and overtemperature conditions.
●Use with the TPS2511-Q1 or TPS2513A-Q1 for a low-loss, automotive-qualified, USB charging-port solution capable of charging all of todays popular phones and tablets.
● AEC-Q100 Qualified
● Device HBM ESD Classification Level
●H2
● Device CDM ESD Classification Level C5
● 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
●## Application
●Automotive USB Charging Ports
