TPS2557

AKTIV

0,5-5A einstellbarer ILIMIT, 2,5-6,5V, 22mΩ USB-Stromschalter, aktiv-hoch

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Datenblatt

document-pdfAcrobat TPS255x Precision Adjustable Current-Limited Power-Distribution Switches datasheet (Rev. B) (Englisch) PDF | HTML

TPS2557

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

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 High

Number of switches

1

Current limit accuracy at 1 A

7.0% (4100mA min / 4715mA max)

Rating

Catalog

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 High

Number of switches

1

Current limit accuracy at 1 A

7.0% (4100mA min / 4715mA max)

Rating

Catalog

VSON (DRB)

8

9 mm² 3 x 3

Meets USB Current-Limiting Requirements
Adjustable Current Limit, 500 mA to 5 A (Typical)
±6.5% Current-Limit Accuracy at 4.5 A
Fast Overcurrent Response: 3.5-µs (Typical)
22-mΩ High-Side MOSFET
Operating Voltage: 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
UL Listed: File No. E169910 and CB IEC60950-1-am2 ed2.0

Meets USB Current-Limiting Requirements
Adjustable Current Limit, 500 mA to 5 A (Typical)
±6.5% Current-Limit Accuracy at 4.5 A
Fast Overcurrent Response: 3.5-µs (Typical)
22-mΩ High-Side MOSFET
Operating Voltage: 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
UL Listed: File No. E169910 and CB IEC60950-1-am2 ed2.0

The TPS255x power-distribution switch is intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered. These devices offer a programmable current-limit threshold between 500 mA and 5 A (typical) through an external resistor. The power-switch rise and fall times are controlled to minimize current surges during turnon and turnoff.

TPS255x 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.

The TPS255x power-distribution switch is intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered. These devices offer a programmable current-limit threshold between 500 mA and 5 A (typical) through an external resistor. The power-switch rise and fall times are controlled to minimize current surges during turnon and turnoff.

TPS255x 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.

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Technische Dokumentation

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Alle anzeigen 4

	Typ	Titel		Datum
*	Data sheet	TPS255x Precision Adjustable Current-Limited Power-Distribution Switches datasheet (Rev. B)	PDF \| HTML	01 Dez 2016
	Certificate	TPS2557 UL Certificate of Compliance IEC 62368-1		07 Sep 2020
	Selection guide	Power Management Guide 2018 (Rev. R)		25 Jun 2018
	EVM User's guide	Using the TPS2556/7EVM		19 Nov 2009

Design und Entwicklung

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Evaluierungsplatine

TPS2557DRBEVM-423 — TPS2557DRBEVM-423: Evaluierungsmodul für TPS2557

The TPS2556EVM-423 and TPS2557EVM-423 are evaluation modules (EVM) for Texas Instruments power-distribution switches with adjustable current-limit. These EVMs operate over a 2.5-V to 6.5-V range. An on-board jumper sets the output current-limit to either 0.5 A or 1 A. The board is designed for the (...)

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