TPS2557

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高电平有效的 0.5A 至 5A 可调节 ILIMIT、2.5V 至 6.5V、22mΩ USB 电源开关

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数据表

document-pdfAcrobat TPS255x Precision Adjustable Current-Limited Power-Distribution Switches 数据表 (Rev. B) (英语) PDF | HTML

TPS2557

正在供货

数据表

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产品详情

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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TPS2556

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低电平有效的 0.5A 至 5A 可调节 ILIMIT、2.5V 至 6.5V、22mΩ USB 电源开关 This product offers the same functionality and pinout with enable active-low.

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	类型	标题		日期
*	数据表	TPS255x Precision Adjustable Current-Limited Power-Distribution Switches 数据表 (Rev. B)	PDF \| HTML	2016年 12月 1日
	证书	TPS2556, TPS2557 UL Certificate of Compliance IEC 62368-1 (Rev. A)		2024年 6月 24日
	选择指南	电源管理指南 2018 (Rev. K)		2018年 7月 31日
	选择指南	电源管理指南 2018 (Rev. R)		2018年 6月 25日
	EVM 用户指南	Using the TPS2556/7EVM		2009年 11月 19日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

TPS2557DRBEVM-423 — TPS2557DRBEVM-423：用于 TPS2557 的评估模块

TPS2556EVM-423 和 TPS2557EVM-423 是评估模块 (EVM)，适用于德州仪器 (TI) 的具有可调节限流的配电开关。这些 EVM 在 2.5V 至 6.5V 的电压范围内工作。板载跳线将输出限流设置为 0.5A 或 1A。该电路板设计用于 5A 电流功能的 TPS2556 或 TPS2557。测试点允许方便快捷地访问所有关键节点电压。

用户指南: PDF