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TPS22948

現行

具有反向電流阻斷的 5.5V 0.24A 300mΩ 負載開關

立即訂購
產品規格表

TPS22948

現行
產品規格表 立即訂購

產品詳細資料

Imax (A) 0.24 Vin (max) (V) 5.5 Vin (min) (V) 2.5 Number of channels 1 Features Inrush current control, Reverse current protection, Short circuit protection, Thermal shutdown Quiescent current (Iq) (typ) (µA) 50 Soft start Fixed Rise Time Rating Catalog Ron (typ) (mΩ) 300 Shutdown current (ISD) (typ) (µA) 0.3 Current limit type Fixed Function Inrush current control, Reverse current blocking, Short circuit protection, Thermal shutdown FET Internal Operating temperature range (°C) -40 to 125 Device type Load switches
Imax (A) 0.24 Vin (max) (V) 5.5 Vin (min) (V) 2.5 Number of channels 1 Features Inrush current control, Reverse current protection, Short circuit protection, Thermal shutdown Quiescent current (Iq) (typ) (µA) 50 Soft start Fixed Rise Time Rating Catalog Ron (typ) (mΩ) 300 Shutdown current (ISD) (typ) (µA) 0.3 Current limit type Fixed Function Inrush current control, Reverse current blocking, Short circuit protection, Thermal shutdown FET Internal Operating temperature range (°C) -40 to 125 Device type Load switches
SOT-SC70 (DCK) 6 4.2 mm² 2 x 2.1
  • Input operating voltage range (VIN):
    2.5 V to 5.5 V
  • Output current limit (ILIMIT):
    240 mA (typical)
  • Thermal shutdown (TSD)
  • ON-Resistance (RON):
    300 mΩ (typical)
  • Slow Turn ON timing limits inrush current (typical):
    • Turn ON time (tON):
      820 us at 6.6 mV/µs
  • Always-ON Reverse Current Blocking (RCB):
    • ON State activation current (IRCB):
      –200 mA (typical)
  • Fault indication (FLT)
  • Smart ON pin pull down (RPD,ON):
    • ON VIH (ION): 25 nA (maximum)
    • ON VIL (RPD,ON): 500 kΩ (typical)
  • Low power consumption:
    • ON State (IQ): 50 uA (typical)
    • OFF State (ISD): 0.3 uA (typical)
  • Input operating voltage range (VIN):
    2.5 V to 5.5 V
  • Output current limit (ILIMIT):
    240 mA (typical)
  • Thermal shutdown (TSD)
  • ON-Resistance (RON):
    300 mΩ (typical)
  • Slow Turn ON timing limits inrush current (typical):
    • Turn ON time (tON):
      820 us at 6.6 mV/µs
  • Always-ON Reverse Current Blocking (RCB):
    • ON State activation current (IRCB):
      –200 mA (typical)
  • Fault indication (FLT)
  • Smart ON pin pull down (RPD,ON):
    • ON VIH (ION): 25 nA (maximum)
    • ON VIL (RPD,ON): 500 kΩ (typical)
  • Low power consumption:
    • ON State (IQ): 50 uA (typical)
    • OFF State (ISD): 0.3 uA (typical)

The TPS22948 device is a small, single channel load switch with robust protection against fault cases with output current limiting, reverse current blocking, and thermal shutdown.

The switch ON state is controlled by a digital input that is capable of interfacing directly with low-voltage control signals. When power is first applied, a smart pull down is used to keep the ON pin from floating until system sequencing is complete. Once the pin is deliberately driven high (>VIH), the smart pull down will be disconnected to prevent unnecessary power loss. ™

TPS22948 is available in a standard SC-70 package characterized for operation over a temperature range of –40°C to 125°C.

The TPS22948 device is a small, single channel load switch with robust protection against fault cases with output current limiting, reverse current blocking, and thermal shutdown.

The switch ON state is controlled by a digital input that is capable of interfacing directly with low-voltage control signals. When power is first applied, a smart pull down is used to keep the ON pin from floating until system sequencing is complete. Once the pin is deliberately driven high (>VIH), the smart pull down will be disconnected to prevent unnecessary power loss. ™

TPS22948 is available in a standard SC-70 package characterized for operation over a temperature range of –40°C to 125°C.
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技術文件

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類型 標題 日期
* Data sheet TPS22948 5.5-V, 240-mA Current Limited Load Switch with Reverse Current Blocking datasheet (Rev. A) PDF | HTML 2019年 9月 27日
Application note How to Meet the HDMI 5V Source Requirement (Rev. C) 2019年 9月 26日
E-book 11 Ways to Protect Your Power Path 2019年 7月 3日
Application note Basics of Load Switches (Rev. A) 2018年 9月 5日
Application note Managing Inrush Current (Rev. A) 2015年 5月 28日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPS22948EVM — TPS22948 5.5V、0.3A 電流限制負載開關評估模組

TPS22948 評估模組 (EVM) 是組裝且經過測試的電路，用於評估 TPS22948 負載開關。TPS22948EVM 允許使用者在不同負載條件下 (0 A 至 0.3 A) 將不同的輸入電壓 (1.6 V 至 5.5 V) 應用到 TPS22948 裝置。可輕鬆準確地評估像是導通電阻、上升時間和輸出下拉電阻等參數。

使用指南: PDF
TI.com 無法提供
模擬型號

TPS22948 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMD59A.ZIP (43 KB) - PSpice Model
下載
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-SC70 (DCK) 6 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

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  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

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