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TPS22917

現行

5.5-V、2-A、80-mΩ、10-nA 洩漏負載開關，可調整上升時間以及可調整輸出放電

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產品規格表

TPS22917

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Vin (min) (V) 1 Vin (max) (V) 5.5 Imax (A) 2 Ron (typ) (mΩ) 80 Shutdown current (ISD) (typ) (µA) 0.01 Quiescent current (Iq) (typ) (µA) 0.5 Soft start Adjustable Rise Time Current limit type None Features Quick output discharge, Reverse current protection Rating Catalog Operating temperature range (°C) -45 to 125 FET Internal Device type Load switches Function Inrush current control, Reverse current blocking
Number of channels 1 Vin (min) (V) 1 Vin (max) (V) 5.5 Imax (A) 2 Ron (typ) (mΩ) 80 Shutdown current (ISD) (typ) (µA) 0.01 Quiescent current (Iq) (typ) (µA) 0.5 Soft start Adjustable Rise Time Current limit type None Features Quick output discharge, Reverse current protection Rating Catalog Operating temperature range (°C) -45 to 125 FET Internal Device type Load switches Function Inrush current control, Reverse current blocking
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • Input operating voltage range (VIN): 1 V to 5.5 V
  • Maximum continuous current (IMAX): 2 A
  • On-resistance (RON):
    • 5 VIN = 80 mΩ (typical)
    • 1.8 VIN = 120 mΩ (typical)
    • 1 VIN = 220 mΩ (typical)
  • Ultra-low power consumption:
    • ON state (IQ): 0.5 µA (typical)
    • OFF state (ISD): 10 nA (typical)
  • Smart ON pin pulldown (RPD):
    • ON ≥ VIH (ION): 10 nA (maximum)
    • ON ≤ VIL (RPD): 750 kΩ (typical)
  • Adjustable turn ON limits inrush current (tON):
    • 5-V tON = 100 µs at 72 mV/µs (CT = open)
    • 5-V tON = 4000 µs at 2.3 mV/µs (CT = 1000 pF)
  • Adjustable output discharge and fall time:
    • Optional QOD resistance ≥ 150 Ω (internal)
  • Always-ON true Reverse Current Blocking (RCB):
    • Activation current (IRCB): –500 mA (typical)
    • Reverse leakage (IIN,RCB): –1 µA (maximum)
  • Input operating voltage range (VIN): 1 V to 5.5 V
  • Maximum continuous current (IMAX): 2 A
  • On-resistance (RON):
    • 5 VIN = 80 mΩ (typical)
    • 1.8 VIN = 120 mΩ (typical)
    • 1 VIN = 220 mΩ (typical)
  • Ultra-low power consumption:
    • ON state (IQ): 0.5 µA (typical)
    • OFF state (ISD): 10 nA (typical)
  • Smart ON pin pulldown (RPD):
    • ON ≥ VIH (ION): 10 nA (maximum)
    • ON ≤ VIL (RPD): 750 kΩ (typical)
  • Adjustable turn ON limits inrush current (tON):
    • 5-V tON = 100 µs at 72 mV/µs (CT = open)
    • 5-V tON = 4000 µs at 2.3 mV/µs (CT = 1000 pF)
  • Adjustable output discharge and fall time:
    • Optional QOD resistance ≥ 150 Ω (internal)
  • Always-ON true Reverse Current Blocking (RCB):
    • Activation current (IRCB): –500 mA (typical)
    • Reverse leakage (IIN,RCB): –1 µA (maximum)

The TPS22917x device is a small, single channel load switch using a low leakage P-Channel MOSFET for minimum power loss. Advanced gate control design supports operating voltages as low as 1 V with minimal increase in ON-Resistance and power loss.

The Rise and Fall times can be independently adjusted with external components for system level optimizations. The timing capacitor (CT) and turn on time can be adjusted to manage inrush current without adding unnecessary system delays. The output discharge resistance (QOD) can be used to adjust the output fall time. Connect the QOD pin directly to the output for a fastest fall time or leave it open for the slowest fall time.

The switch ON state is controlled by a digital input that can interface directly with low-voltage control signals. The TPS22917 uses active high enable logic, while the TPS22917L uses active low. When power is first applied, a Smart Pulldown is used to keep the ON pin from floating until system sequencing is complete. After the ON pin is deliberately driven high (≥VIH), the Smart Pulldown (RPD) is disconnected to prevent unnecessary power loss.

The TPS22917x device is available in a leaded SOT-23 package (DBV) which allows visual inspection of solder joints. The device is characterized for operation over a temperature range of –40°C to 125°C.

The TPS22917x device is a small, single channel load switch using a low leakage P-Channel MOSFET for minimum power loss. Advanced gate control design supports operating voltages as low as 1 V with minimal increase in ON-Resistance and power loss.

The Rise and Fall times can be independently adjusted with external components for system level optimizations. The timing capacitor (CT) and turn on time can be adjusted to manage inrush current without adding unnecessary system delays. The output discharge resistance (QOD) can be used to adjust the output fall time. Connect the QOD pin directly to the output for a fastest fall time or leave it open for the slowest fall time.

The switch ON state is controlled by a digital input that can interface directly with low-voltage control signals. The TPS22917 uses active high enable logic, while the TPS22917L uses active low. When power is first applied, a Smart Pulldown is used to keep the ON pin from floating until system sequencing is complete. After the ON pin is deliberately driven high (≥VIH), the Smart Pulldown (RPD) is disconnected to prevent unnecessary power loss.

The TPS22917x device is available in a leaded SOT-23 package (DBV) which allows visual inspection of solder joints. The device is 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 TPS22917x 1 V–5.5-V, 2-A, 80-mΩ Ultra-Low Leakage Load Switch datasheet (Rev. B) PDF | HTML 2021年 12月 15日
E-book 11 Ways to Protect Your Power Path 2019年 7月 3日
Application brief Making the Switch to an Integrated Load Switch 2019年 6月 11日
Application note Integrated Load Switches Versus Discrete MOSFETs (Rev. A) 2019年 5月 6日
Application note Load Switch Thermal Considerations (Rev. A) 2018年 10月 11日
Application note Basics of Load Switches (Rev. A) 2018年 9月 5日
User guide TPS22917 Load Switch Evaluation Module 2017年 10月 5日
Application note Selecting a Load Switch to Replace a Discrete Solution 2017年 4月 30日
Application note Timing of Load Switches 2017年 4月 27日
Application note Fundamentals of On-Resistance in Load Switches 2016年 6月 9日
Application note Quiescent Current vs Shutdown Current for Load Switch Power Consumption 2016年 3月 30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

HALL-TRIGGER-EVM — 適用於具有外部現場保護之非接觸式、霍爾效應變動速度觸發器的評估模組

此評估模組 (EVM) 使用霍爾效應感測器來實作觸發器，而該觸發器是根據按下觸發器的程度來輸出不同電壓。與傳統的機械式觸發器相比，此 EVM 採用非接觸式的方法減少磨損，因從而延長產品使用壽命。低功耗霍爾效應開關與負載開關搭配使用，因此當未按下觸發器時，可讓系統維持低功耗待機模式。此外，當存在強大的外部磁場時，選擇性使用停用電壓輸出的磁場保護功能。
使用指南: PDF | HTML
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開發板

TPS22917EVM — TPS22917 5.5V、2A、80mΩ 導通電阻負載開關評估模組

The TPS22917 evaluation module (EVM) is an assembled and tested circuit for evaluating the TPS22916xx load switches. The TPS22917EVM allows the user to apply different input voltages (1.0 V to 5.5 V) under different loading conditions (0 A to 2 A) to the TPS22917 device. The VIN and VOUT (...)
使用指南: PDF
TI.com 無法提供
模擬型號

TPS22917 Unencrypted PSpice Transient Model

SLVMCE8.ZIP (4 KB) - PSpice Model
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模擬型號

TPS22917 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMCE9A.ZIP (6743 KB) - PSpice Model
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模擬型號

TPS22917L PSpice Model

SLVMDR5.ZIP (86 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 (...)
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參考設計

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This reference design provides a means to isolate I2C or SPI communication lines. This is often required in grid infrastructure applications such as protection relays and circuit breakers where high voltages are involved. This reference design provides both power isolation and signal isolation.
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01584 — 使用負載開關的電源定序參考設計

The TIDA-01584 reference design demonstrates various power sequencing configurations using load switches. By using integrated load switches, the timing of each voltage rail can be adjusted independently. Each voltage rail can be controlled without extensive processor intervention or external (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-060032 — 具有外部現場保護的非接觸式、霍爾效應變動速度觸發參考設計

此參考設計使用霍爾效應感測器來實作觸發器，而該觸發器是根據按下觸發器的程度來輸出不同電壓。這些類型的觸發器對於無線供電工具或其他任何使用觸發位移資訊的終端設備都很有用。

與傳統的機械式觸發器相比，此設計採用非接觸式的方法減少磨損，因從而延長產品使用壽命。低功耗霍爾效應開關與負載開關搭配使用，因此當未按下觸發器時，可讓系統維持低功耗待機模式。此外，當存在強大的外部磁場時，選擇性使用停用電壓輸出的磁場保護功能。

Design guide: PDF
電路圖: PDF
參考設計

TIDA-010055 — 非隔離電源架構，具有用於保護繼電器模組的診斷參考設計

This reference design showcases non-isolated power supply architectures for protection relays with analog input/output and communication modules generated from 5-, 12-, or 24-V DC input. To generate the power supplies the design uses DC/DC converters with an integrated FET, a power module with an (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-010049 — 適用於 IEC 61508 的 TUV 評估數位輸入參考設計 (SIL-2)

This 8-channel, group-isolated, digital input module reference design, focuses on applications with the need for industrial functional safety. This design has diagnostics implemented to help detect both permanent and transient random hardware faults. The concept of this input module has been (...)
Design guide: PDF
電路圖: PDF
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