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USB 电源开关和充电端口控制器

TPS2068

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低电平有效且具有反向阻断功能的 1.5A 负载、2.7-5.5V、70mΩ USB 电源开关

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TPS2068

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产品详情

Product type Fixed current limit, Power switch Vin (min) (V) 2.7 Vin (max) (V) 5.5 Continuous current (max) (A) 1.5 Current limit (A) 1.5 Operating temperature range (°C) -40 to 105 Enable Active Low Number of switches 1 Current limit accuracy at 1 A 0.24 Rating Catalog
Product type Fixed current limit, Power switch Vin (min) (V) 2.7 Vin (max) (V) 5.5 Continuous current (max) (A) 1.5 Current limit (A) 1.5 Operating temperature range (°C) -40 to 105 Enable Active Low Number of switches 1 Current limit accuracy at 1 A 0.24 Rating Catalog
HVSSOP (DGN) 8 14.7 mm² 3 x 4.9 SOIC (D) 8 29.4 mm² 4.9 x 6
  • 70-mΩ High-Side MOSFET
  • 1.5-A Continuous Current
  • Thermal and Short-Circuit Protection
  • Accurate Current Limit (1.6 A min, 2.6 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
  • Reverse Current Blocking
  • TPS2060/64 Temperature Range: 0°C to 70°C
  • TPS2068/69 DGN Package Temperature Range: –40°C to 85°C
  • TPS2068 D Package Temperature Range:
    0°C to 70°C
  • UL Listed – File No. E169910
  • TPS2068/69: CB Certified
  • APPLICATIONS
    • Heavy Capacitive Loads
    • Short-Circuit Protections
  • 70-mΩ High-Side MOSFET
  • 1.5-A Continuous Current
  • Thermal and Short-Circuit Protection
  • Accurate Current Limit (1.6 A min, 2.6 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
  • Reverse Current Blocking
  • TPS2060/64 Temperature Range: 0°C to 70°C
  • TPS2068/69 DGN Package Temperature Range: –40°C to 85°C
  • TPS2068 D Package Temperature Range:
    0°C to 70°C
  • UL Listed – File No. E169910
  • TPS2068/69: CB Certified
  • APPLICATIONS
    • Heavy Capacitive Loads
    • Short-Circuit Protections

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-mΩ N-channel MOSFET power switches for power-distribution systems that require single or dual 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. Current limit is typically 2.1 A.

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-mΩ N-channel MOSFET power switches for power-distribution systems that require single or dual 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. Current limit is typically 2.1 A.
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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 CURRENT LIMITED, POWER-DISTRIBUTION SWITCHES 数据表 (Rev. K) 2011年 5月 13日
证书 US-38418-UL Certificate of Compliance IEC 62368-1 2022年 6月 27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 Single Channel Power-Distribution Switch EVM (Rev. B) 2007年 12月 17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）。

仿真模型

TPS2068 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM389A.ZIP (33 KB) - PSpice Model
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封装 引脚 下载
HVSSOP (DGN) 8 查看选项
SOIC (D) 8 查看选项
应遵守 TI 评估类商品的标准条款与条件。

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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