ホーム パワー・マネージメント USB パワー・スイッチと充電ポート・コントローラ

TPS2147

アクティブ

アクティブ・ロー +3.3V 出力 LDO、2 チャネル、0.15A 負荷、340mΩ USB パワー・スイッチ

この製品には新バージョンがあります。

open-in-new 代替品と比較
これまでにご購入されたお客様をサポートする目的でこの製品を引き続き生産しています。新規設計では代替品をご検討ください。
比較対象デバイスと類似の機能
TPS25221 アクティブ 0.275 ~ 2.7A の調整可能なILIMIT、アクティブ・ハイ、逆方向ブロッキング機能搭載、2.5 ~ 5.5V、70mΩ USB パワー・スイッチ This product is a single channel adjustable current limit switch that can cover the same current limit requirement.

製品詳細

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
  • 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.

ダウンロード

技術資料

star =TI が選定したこの製品の主要ドキュメント
結果が見つかりませんでした。検索条件をクリアしてから、再度検索を試してください。
1 をすべて表示
種類 タイトル 最新の英語版をダウンロード 日付
* データシート LDO and Dual Switch with Controlled Rise Times for DSP and Portable Applications データシート 2001年 8月 6日

購入と品質

記載されている情報:
  • RoHS
  • REACH
  • デバイスのマーキング
  • リード端子の仕上げ / ボールの原材料
  • MSL 定格 / ピーク リフロー
  • MTBF/FIT 推定値
  • 使用原材料
  • 認定試験結果
  • 継続的な信頼性モニタ試験結果
記載されている情報:
  • ファブの拠点
  • 組み立てを実施した拠点

サポートとトレーニング

TI E2E™ フォーラムでは、TI のエンジニアからの技術サポートを提供

コンテンツは、TI 投稿者やコミュニティ投稿者によって「現状のまま」提供されるもので、TI による仕様の追加を意図するものではありません。使用条件をご確認ください。

TI 製品の品質、パッケージ、ご注文に関するお問い合わせは、TI サポートをご覧ください。​​​​​​​​​​​​​​

ビデオ