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.

• 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)

• Number of input channels
• 2
• IN1, IN2 input voltage (Min) (V)
• 2.8
• IN1, IN2 input voltage (Max) (V)
• 22
• IN1 rDS(on) (Typ) (mOhm)
• 62
• IN2 rDS(on) (Typ) (mOhms)
• 62
• IN1 output current (Max) (A)
• 2
• IN2 output current (Max) (A)
• 2
• Rating
• Catalog
• Operating temperature range (C)
• -40 to 125

TPS2124的完整型号有：TPS2124YFPR，以下是这些产品的关键参数及官网采购报价：

TPS2124YFPR，工作温度：-40 to 125，封装：DSBGA (YFP)-20，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SNAGCU，TI官网TPS2124YFPR的批量USD价格：.62（1000+）

TPS2124EVM-126 — TPS2124 evaluation module for priority power multiplexer applications

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。

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PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用，包括业内超大的模型库之一，涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

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