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TPS2124

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支持无缝切换的 2.8V 至 22V 优先级电源多路复用器

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TPS2124

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产品详情

Number of input channels 2 IN1, IN2 input voltage (max) (V) 22 IN1, IN2 input voltage (min) (V) 2.8 IN1 output current (max) (A) 2 IN2 output current (max) (A) 2 Quiescent current (Iq) (µA) 300 Imax (A) 2 Rating Catalog Features Adjustable current limit, Inrush current control, Overvoltage protection, Reverse current blocking, Short circuit protection, Thermal shutdown IN1 rDS(on) (typ) (mΩ) 62 IN2 rDS(on) (typ) (mΩ) 62 Operating temperature range (°C) -40 to 125 FET Internal Device type Power muxes Function Adjustable current limit, Inrush current control, Overvoltage protection, Power good signal, Reverse current blocking, Short circuit protection, Thermal shutdown
Number of input channels 2 IN1, IN2 input voltage (max) (V) 22 IN1, IN2 input voltage (min) (V) 2.8 IN1 output current (max) (A) 2 IN2 output current (max) (A) 2 Quiescent current (Iq) (µA) 300 Imax (A) 2 Rating Catalog Features Adjustable current limit, Inrush current control, Overvoltage protection, Reverse current blocking, Short circuit protection, Thermal shutdown IN1 rDS(on) (typ) (mΩ) 62 IN2 rDS(on) (typ) (mΩ) 62 Operating temperature range (°C) -40 to 125 FET Internal Device type Power muxes Function Adjustable current limit, Inrush current control, Overvoltage protection, Power good signal, Reverse current blocking, Short circuit protection, Thermal shutdown
DSBGA (YFP) 20 3.96 mm² (— mm × — mm)
  • Wide operating range: 2.8 V to 22 V
    • Absolute maximum input voltage of 24 V
  • Low RON resistance:
    • TPS2124: 62 mΩ (typical)
  • Adjustable over-voltage supervisor (OVx):
    • Accuracy < ±5%
  • Adjustable priority supervisor (PR1):
    • Accuracy < ±5%
  • Output current limit (ILM):
    • TPS2124: 1 A – 2.5 A
  • Channel status indication (ST)
  • Adjustable input settling time (SS)
  • Adjustable output soft start time (SS)
  • Low IQ from enabled input: 200 µA (typical)
  • Low IQ from disabled input: 15 µA (Typical)
  • Manual input source selection (OVx)
  • Over-temperature protection (OTP)
  • Wide operating range: 2.8 V to 22 V
    • Absolute maximum input voltage of 24 V
  • Low RON resistance:
    • TPS2124: 62 mΩ (typical)
  • Adjustable over-voltage supervisor (OVx):
    • Accuracy < ±5%
  • Adjustable priority supervisor (PR1):
    • Accuracy < ±5%
  • Output current limit (ILM):
    • TPS2124: 1 A – 2.5 A
  • Channel status indication (ST)
  • Adjustable input settling time (SS)
  • Adjustable output soft start time (SS)
  • Low IQ from enabled input: 200 µA (typical)
  • Low IQ from disabled input: 15 µA (Typical)
  • Manual input source selection (OVx)
  • Over-temperature protection (OTP)

The TPS2124 device is a Dual-Input, Single-Output (DISO) Power Multiplexer (MUX) that is well suited for a variety of systems having multiple power sources.  The device will Automatically Detect, Select, and Seamlessly Transition between available inputs.

 Priority can be automatically given to the highest input voltage or manually assigned to a lower voltage input to support both ORing and Source Selection operations. A priority voltage supervisor is used to select an input source.

 An Ideal Diode operation is used to seamlessly transition between input sources.  During switchover, the voltage drop is controlled to block reverse current before it happens and provide uninterrupted power to the load with minimal hold-up capacitance.

Current limiting is used during startup and switchover to protect against overcurrent events, and also protects the device during normal operation.  The output current limit can be adjusted with a single external resistor.

 The TPS2124 device is available in a WCSP package characterized for operation for a temperature range of –40°C to 125°C.

The TPS2124 device is a Dual-Input, Single-Output (DISO) Power Multiplexer (MUX) that is well suited for a variety of systems having multiple power sources.  The device will Automatically Detect, Select, and Seamlessly Transition between available inputs.

 Priority can be automatically given to the highest input voltage or manually assigned to a lower voltage input to support both ORing and Source Selection operations. A priority voltage supervisor is used to select an input source.

 An Ideal Diode operation is used to seamlessly transition between input sources.  During switchover, the voltage drop is controlled to block reverse current before it happens and provide uninterrupted power to the load with minimal hold-up capacitance.

Current limiting is used during startup and switchover to protect against overcurrent events, and also protects the device during normal operation.  The output current limit can be adjusted with a single external resistor.

 The TPS2124 device is available in a WCSP package characterized for operation for a temperature range of –40°C to 125°C.
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TPS2116 正在供货 1.6V 至 5.5V、40mΩ、2.5A、低 IQ、优先级电源多路复用器 Optimized for 1.6-V - 5.5-V low power ORing applications. Offers lower IQ and shutdown current.

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* 数据表 TPS2124 2.8-V to 22-V Priority Power MUX with Seamless Switchover 数据表 PDF | HTML 2020-1-27

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评估板

TPS2124EVM-126 — 适用于优先级电源多路复用器应用的 TPS2124 评估模块

TPS2124 EVM 是 TI TPS2124 双输入、单输出电源多路复用器的评估模块。该器件自动检测和选择电源并在两个电源之间无缝切换，每个电源的工作电压为 2.7V 至 22V。TPS2124 器件采用 WCSP 封装，可以为下游负载提供高达 2A 的电流。该用户指南包含 EVM 原理图、电路板布局布线、物料清单以及有关如何正确操作该 EVM 的必要说明。

用户指南: PDF | HTML
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