TPS2556-Q1 Texas instruments

TPS2556-Q1

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TPS2556-Q1

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Описание

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
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

Product type	Adjustable current limit, Power switch
Vin (min) (V)	2.5
Vin (max) (V)	6.5
Continuous current (max) (A)	5
Current limit (A)	0.5 to 5.0
Operating temperature range (°C)	-40 to 125
Enable	Active Low
Number of switches	1
TI functional safety category	Functional Safety-Capable
Current limit accuracy at 1 A	7.0% (4100mA min / 4715mA max)
Rating	Automotive