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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

Number of channels 1 Vin (min) (V) 2.5 Vin (max) (V) 5.5 Imax (A) 0.1 Ron (typ) (mΩ) 300 Shutdown current (ISD) (typ) (µA) 5 Quiescent current (Iq) (typ) (µA) 50 Soft start Fixed Rise Time Current limit type Fixed Features Reverse current protection, Short circuit protection, Thermal shutdown Rating Catalog Operating temperature range (°C) -40 to 105 FET Internal Device type Load switches Function Inrush current control, Reverse current blocking, Short circuit protection, Thermal shutdown
Number of channels 1 Vin (min) (V) 2.5 Vin (max) (V) 5.5 Imax (A) 0.1 Ron (typ) (mΩ) 300 Shutdown current (ISD) (typ) (µA) 5 Quiescent current (Iq) (typ) (µA) 50 Soft start Fixed Rise Time Current limit type Fixed Features Reverse current protection, Short circuit protection, Thermal shutdown Rating Catalog Operating temperature range (°C) -40 to 105 FET Internal Device type Load switches Function Inrush current control, Reverse current blocking, Short circuit protection, Thermal shutdown
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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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
EVM User's guide TPS22948EVM User's Guide 2018年 10月 19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

The TPS22948 evaluation module (EVM) is an assembled and tested circuit for evaluating the TPS22948 load switches. The TPS22948EVM allows the user to apply different input voltages (1.6 V to 5.5 V) under different loading conditions (0 A to 0.3 A) to the TPS22948 device. Parameters such as the (...)

使用指南: PDF
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模擬型號

TPS22948 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMD59A.ZIP (43 KB) - PSpice Model
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
要求
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-SC70 (DCK) 6 Ultra Librarian
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