TPS2557

正在供货

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

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

技术文档

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类型 标题 下载最新的英语版本 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 TPS2557 UL Certificate of Compliance IEC 62368-1 2020年 9月 7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
TI.com 上无现货
仿真模型

TPS2557 TINA-TI Transient Reference Design

SLVM494.TSC (635 KB) - TINA-TI Reference Design
仿真模型

TPS2557 TINA-TI Transient Spice Model

SLVM495.ZIP (22 KB) - TINA-TI Spice Model
仿真模型

TPS2557 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM409A.ZIP (31 KB) - PSpice Model
封装 引脚 下载
VSON (DRB) 8 查看选项

订购和质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

支持和培训

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