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TPS22954

現行

具可調式上升時間、電壓監控和輸出放電的 5.7-V、5-A、14-mΩ 負載開關

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產品規格表

TPS22954

現行
產品規格表 立即訂購

產品詳細資料

Imax (A) 5 Vin (max) (V) 5.7 Vin (min) (V) 0.7 Number of channels 1 Features Inrush current control, Power good signal, Quick output discharge, Thermal shutdown, Under voltage lock out Quiescent current (Iq) (typ) (µA) 34 Soft start Adjustable Rise Time Rating Catalog Ron (typ) (mΩ) 14 Shutdown current (ISD) (typ) (µA) 5 Current limit type None Function Inrush current control, Power good signal, Reverse current blocking, Thermal shutdown FET Internal Operating temperature range (°C) -40 to 105 Device type Load switches
Imax (A) 5 Vin (max) (V) 5.7 Vin (min) (V) 0.7 Number of channels 1 Features Inrush current control, Power good signal, Quick output discharge, Thermal shutdown, Under voltage lock out Quiescent current (Iq) (typ) (µA) 34 Soft start Adjustable Rise Time Rating Catalog Ron (typ) (mΩ) 14 Shutdown current (ISD) (typ) (µA) 5 Current limit type None Function Inrush current control, Power good signal, Reverse current blocking, Thermal shutdown FET Internal Operating temperature range (°C) -40 to 105 Device type Load switches
WSON (DQC) 10 6 mm² 3 x 2 WSON (DSQ) 10 4 mm² 2 x 2
  • Integrated Single Channel Load Switch
  • Input Voltage Range: 0.7 V to 5.7 V
  • RON Resistance
    • RON = 14 mΩ at VIN = 5 V (VBIAS = 5 V)
  • 5-A Maximum Continuous Switch Current
  • Adjustable Undervoltage Lockout Threshold (UVLO)
  • Adjustable Voltage Supervisor with Power Good (PG) Indicator
  • Adjustable Output Slew Rate Control
  • Enhanced Quick Output Discharge Remains Active after Power is Removed (TPS22954 Only)
    • 15 Ω (Typ) Discharges 100 µF Within 10 ms
  • Reverse Current Blocking when Disabled (TPS22953 Only)
  • Automatic Restart after Supervisor Fault Detection When Enabled
  • Thermal Shutdown
  • Low Quiescent Current ≤ 50 µA
  • SON 10-pin Package with Thermal Pad
  • ESD Performance Tested Per JESD 22
    • 2-kV HBM and 750-V CDM
  • Integrated Single Channel Load Switch
  • Input Voltage Range: 0.7 V to 5.7 V
  • RON Resistance
    • RON = 14 mΩ at VIN = 5 V (VBIAS = 5 V)
  • 5-A Maximum Continuous Switch Current
  • Adjustable Undervoltage Lockout Threshold (UVLO)
  • Adjustable Voltage Supervisor with Power Good (PG) Indicator
  • Adjustable Output Slew Rate Control
  • Enhanced Quick Output Discharge Remains Active after Power is Removed (TPS22954 Only)
    • 15 Ω (Typ) Discharges 100 µF Within 10 ms
  • Reverse Current Blocking when Disabled (TPS22953 Only)
  • Automatic Restart after Supervisor Fault Detection When Enabled
  • Thermal Shutdown
  • Low Quiescent Current ≤ 50 µA
  • SON 10-pin Package with Thermal Pad
  • ESD Performance Tested Per JESD 22
    • 2-kV HBM and 750-V CDM

The TPS22953/54 are small, single channel load switches with controlled turn on. The devices contain a N-channel MOSFET that can operate over an input voltage range of 0.7 V to 5.7 V and can support a maximum continuous current of 5 A.

The integrated adjustable undervoltage lockout (UVLO) and adjustable power good (PG) threshold provides voltage monitoring as well as robust power sequencing. The adjustable rise time control of the device greatly reduces inrush current for a wide variety of bulk load capacitances, thereby reducing or eliminating power supply droop. The switch is independently controlled by an on and off input (EN), which is capable of interfacing directly with low-voltage control signals. A 15-Ω on-chip load is integrated into the device for a quick discharge of the output when switch is disabled. The enhanced Quick Output Discharge (QOD) remains active for short time after power is removed from the device to finish discharging the output.

The TPS22953/54 are available in small, space-saving 10-SON packages with integrated thermal pad allowing for high power dissipation. The device is characterized for operation over the free-air temperature range of –40°C to +105°C.

The TPS22953/54 are small, single channel load switches with controlled turn on. The devices contain a N-channel MOSFET that can operate over an input voltage range of 0.7 V to 5.7 V and can support a maximum continuous current of 5 A.

The integrated adjustable undervoltage lockout (UVLO) and adjustable power good (PG) threshold provides voltage monitoring as well as robust power sequencing. The adjustable rise time control of the device greatly reduces inrush current for a wide variety of bulk load capacitances, thereby reducing or eliminating power supply droop. The switch is independently controlled by an on and off input (EN), which is capable of interfacing directly with low-voltage control signals. A 15-Ω on-chip load is integrated into the device for a quick discharge of the output when switch is disabled. The enhanced Quick Output Discharge (QOD) remains active for short time after power is removed from the device to finish discharging the output.

The TPS22953/54 are available in small, space-saving 10-SON packages with integrated thermal pad allowing for high power dissipation. The device is characterized for operation over the free-air temperature range of –40°C to +105°C.

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技術文件

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重要文件 類型 標題 格式選項 日期
* Data sheet TPS2295x 5.7 V, 5 A, 14 mΩ On-Resistance Load Switch datasheet (Rev. D) PDF | HTML 2016年 9月 16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
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
Analog Design Journal 2Q 2016 Analog Applications Journal Issue 2016年 4月 26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

TPS22954EVM — TPS22954 5.5V、14mΩ 導通電阻負載開關評估模組

TPS22954 裝置是單通道低 RON 負載開關，操作電壓範圍為 0.7V 至 5.7V。TPS22954EVM 可提供 TPS22954 的兩種封裝版本 DSQ（0.4mm 接腳節距）和 DQC（0.5mm 接腳節距），以供評估。TPS22954 整合了電壓監控器，可透過 TPS22954EVM 上的外部電阻器設定。

使用指南: PDF
TI.com 無法提供
模擬型號

TPS22954 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMAQ5A.ZIP (54 KB) - PSpice Model
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參考設計

TIDA-00399 — SSD 電力傳輸參考設計

TIDA-00399 設計在 M.2 外形中實作了 SSD 的完整電源傳輸解決方案。TPS22954 負載開關用於限制突波電流，並消除對系統輸入上獨立監控電路的需求。此設計經過測試，且包括 GUI、示範和使用指南。
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
WSON (DQC) 10 Ultra Librarian
WSON (DSQ) 10 Ultra Librarian
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