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参数

Vin (Min) (V) 2.7 Vin (Max) (V) 5.5 Continuous current (Max) (A) 1 Current limit (A) 1.5 Enable Active Low Number of switches 3 Rating Catalog open-in-new 查找其它 USB电源开关和充电端口控制器

封装|引脚|尺寸

SOIC (D) 16 59 mm² 9.9 x 6 open-in-new 查找其它 USB电源开关和充电端口控制器

特性

  • 70-m High-Side MOSFET
  • 1-A Continuous Current
  • Thermal and Short-Circuit Protection
  • Accurate Current Limit (1.1 A min, 1.9 A max)
  • Operating Range: 2.7 V to 5.5 V
  • 0.6-ms Typical Rise Time
  • Undervoltage Lockout
  • Deglitched Fault Report (OC)
  • No OC Glitch During Power Up
  • 1-µA Maximum Standby Supply Current
  • Bidirectional Switch
  • Ambient Temperature Range: -40°C to 85°C
  • Built-in Soft-Start
  • UL Listed - File No. E169910
  • APPLICATIONS
    • Heavy Capacitive Loads
    • Short-Circuit Protections

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描述

The TPS206x power-distribution switches are intended for applications where heavy capacitive loads and short-circuits are likely to be encountered. This device incorporates 70-m N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic enable input. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7 V.

When the output load exceeds the current-limit threshold or a short is present, the device limits the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx) logic output low. When continuous heavy overloads and short-circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures that the switch remains off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1.5 A typically.

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技术文档

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类型 标题 下载最新的英文版本 发布
* 数据表 Current Limited, Power Distribution Switches 数据表 2009年 10月 29日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
技术文章 A New Understanding: Blast Motion redefines movement, tracking and training for athletes. 2014年 8月 6日
技术文章 Improving Fly-Buck Regulation Using Opto (Part-1) 2014年 7月 15日
技术文章 Altium and WEBENCH – together at last 2014年 7月 12日
技术文章 Using telemetry in point-of-load applications 2014年 6月 24日
用户指南 Three-Channel Power Distribuiton Switch EVM 2008年 3月 13日

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