TPS2557

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高電平有效的 0.5A 至 5A 可調(diào)節(jié) ILIMIT、2.5V 至 6.5V、22mΩ USB 電源開關(guān)

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數(shù)據(jù)表

document-pdfAcrobat TPS255x Precision Adjustable Current-Limited Power-Distribution Switches 數(shù)據(jù)表 (Rev. B) (英語) PDF | HTML

TPS2557

正在供貨

數(shù)據(jù)表

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產(chǎn)品詳情

Product type

Adjustable current limit, Power switch

Rating

Catalog

Continuous current (max) (A)

Current limit (A)

0.5 to 5.0

Number of switches

Enable

Active High

Vin (max) (V)

6.5

Vin (min) (V)

2.5

Operating temperature range (°C)

-40 to 125

Current limit accuracy at 1 A

7.0% (4100mA min / 4715mA max)

Product type

Adjustable current limit, Power switch

Rating

Catalog

Continuous current (max) (A)

Current limit (A)

0.5 to 5.0

Number of switches

Enable

Active High

Vin (max) (V)

6.5

Vin (min) (V)

2.5

Operating temperature range (°C)

-40 to 125

Current limit accuracy at 1 A

7.0% (4100mA min / 4715mA max)

VSON (DRB)

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.

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TPS2556

正在供貨

低電平有效的 0.5A 至 5A 可調(diào)節(jié) ILIMIT、2.5V 至 6.5V、22mΩ USB 電源開關(guān) This product offers the same functionality and pinout with enable active-low.

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	類型	標(biāo)題		日期
*	數(shù)據(jù)表	TPS255x Precision Adjustable Current-Limited Power-Distribution Switches 數(shù)據(jù)表 (Rev. B)	PDF \| HTML	2016年 12月 1日
	證書	TPS2556, TPS2557 UL Certificate of Compliance IEC 62368-1 (Rev. A)		2024年 6月 24日
	選擇指南	電源管理指南 2018 (Rev. K)		2018年 7月 31日
	選擇指南	電源管理指南 2018 (Rev. R)		2018年 6月 25日
	EVM 用戶指南	Using the TPS2556/7EVM		2009年 11月 19日

設(shè)計(jì)和開發(fā)

如需其他信息或資源，請(qǐng)點(diǎn)擊以下任一標(biāo)題進(jìn)入詳情頁面查看（如有）。

評(píng)估板

TPS2557DRBEVM-423 — TPS2557DRBEVM-423：用于 TPS2557 的評(píng)估模塊

TPS2556EVM-423 和 TPS2557EVM-423 是評(píng)估模塊 (EVM)，適用于德州儀器 (TI) 的具有可調(diào)節(jié)限流的配電開關(guān)。這些 EVM 在 2.5V 至 6.5V 的電壓范圍內(nèi)工作。板載跳線將輸出限流設(shè)置為 0.5A 或 1A。該電路板設(shè)計(jì)用于 5A 電流功能的 TPS2556 或 TPS2557。測試點(diǎn)允許方便快捷地訪問所有關(guān)鍵節(jié)點(diǎn)電壓。

用戶指南: PDF