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USB 电源开关和充电端口控制器

TPS2147

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具有低电平有效和 3.3V 输出的 LDO 的双通道、0.15A 负载、340mΩ USB 电源开关

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TPS25221 正在供货 高电平有效且具有反向阻断功能的 0.275-2.7A 可调节ILIMIT、2.5-5.5V、70mΩ USB 电源开关 This product is a single channel adjustable current limit switch that can cover the same current limit requirement.

TPS2147

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产品详情

Product type Fixed current limit, Power switch, Switch with LDO Vin (min) (V) 2.9 Vin (max) (V) 5.5 Current limit (A) 0.33 Operating temperature range (°C) -40 to 100 Current limit accuracy at 1 A 0.33 Rating Catalog
Product type Fixed current limit, Power switch, Switch with LDO Vin (min) (V) 2.9 Vin (max) (V) 5.5 Current limit (A) 0.33 Operating temperature range (°C) -40 to 100 Current limit accuracy at 1 A 0.33 Rating Catalog
HVSSOP (DGQ) 10 14.7 mm² 3 x 4.9
  • Two 340-m (Typical) High-Side MOSFETs
  • 200 mA Low-Dropout Voltage Regulator In Fixed 3.3-V or Adjustable Versions
  • Independent Thermal- and Short-Circuit Protection for LDO and Each Switch
  • Overcurrent Indicators With Transient Filter
  • 2.9-V to 5.5-V Operating Range
  • CMOS- and TTL-Compatible Enable Inputs
  • 75-uA (Typical) Supply Current
  • Available in 10-Pin MSOP or 14-Pin TSSOP (PowerPAD™)
  • -40°C to 85°C Ambient Temperature Range
  • APPLICATIONS
    • USB Hubs and Peripherals
      • Keyboards
      • Zip Drives
      • Speakers and Headsets
    • PDAs and Portable Electronics
    • DSP Power Sequencing

PowerPAD is a trademark of Texas Instruments.
  • Two 340-m (Typical) High-Side MOSFETs
  • 200 mA Low-Dropout Voltage Regulator In Fixed 3.3-V or Adjustable Versions
  • Independent Thermal- and Short-Circuit Protection for LDO and Each Switch
  • Overcurrent Indicators With Transient Filter
  • 2.9-V to 5.5-V Operating Range
  • CMOS- and TTL-Compatible Enable Inputs
  • 75-uA (Typical) Supply Current
  • Available in 10-Pin MSOP or 14-Pin TSSOP (PowerPAD™)
  • -40°C to 85°C Ambient Temperature Range
  • APPLICATIONS
    • USB Hubs and Peripherals
      • Keyboards
      • Zip Drives
      • Speakers and Headsets
    • PDAs and Portable Electronics
    • DSP Power Sequencing

PowerPAD is a trademark of Texas Instruments.

Two power-distribution switches and an adjustable (TPS2145) or fixed (TPS2147) LDO are incorporated in one small package, providing a power management solution that saves up to 60% in board space over typical implementations.

Designed to meet USB 2.0 bus-powered hub requirements, these devices also allow core and I/O voltage sequencing in DSP applications, or power segmentation in portable equipment. Each current-limited switch is a 340-m N-channel MOSFET capable of supplying 200 mA of continuous current. A logic enable compatible with 5-V logic and 3-V logic controls each MOSFET as well as the LDO in the TPS2145. The internal charge pump provides the gate drive controlling the power-switch rise times and fall times, minimizing current surges during switching. The charge pump requires no external components.

The LDO has a drop-out voltage of only 0.35 V and with the independent enable on the TPS2145 LDO, the LDO can be used as an additional switch. The LDO output range for the TPS2145 is 1 V to 3.3 V, while the TPS2147 is fixed at 3.3 V.

The TPS2145 and TPS2147 have active-low switch enables and the TPS2155 and TPS2157 have active-high switch enables.

Two power-distribution switches and an adjustable (TPS2145) or fixed (TPS2147) LDO are incorporated in one small package, providing a power management solution that saves up to 60% in board space over typical implementations.

Designed to meet USB 2.0 bus-powered hub requirements, these devices also allow core and I/O voltage sequencing in DSP applications, or power segmentation in portable equipment. Each current-limited switch is a 340-m N-channel MOSFET capable of supplying 200 mA of continuous current. A logic enable compatible with 5-V logic and 3-V logic controls each MOSFET as well as the LDO in the TPS2145. The internal charge pump provides the gate drive controlling the power-switch rise times and fall times, minimizing current surges during switching. The charge pump requires no external components.

The LDO has a drop-out voltage of only 0.35 V and with the independent enable on the TPS2145 LDO, the LDO can be used as an additional switch. The LDO output range for the TPS2145 is 1 V to 3.3 V, while the TPS2147 is fixed at 3.3 V.

The TPS2145 and TPS2147 have active-low switch enables and the TPS2155 and TPS2157 have active-high switch enables.
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* 数据表 LDO and Dual Switch with Controlled Rise Times for DSP and Portable Applications 数据表 2001年 8月 6日

设计和开发

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HVSSOP (DGQ) 10 查看选项
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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

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