Overview
The TPS2124YFPR, produced by Texas Instruments, is a Dual-Input, Single-Output (DISO) Power Multiplexer (MUX) designed for systems with multiple power sources. This device automatically detects, selects, and seamlessly transitions between available inputs, prioritizing the highest input voltage or allowing manual assignment to a lower voltage input. It supports both ORing and source selection operations, ensuring uninterrupted power to the load with minimal hold-up capacitance. The TPS2124YFPR features ideal diode operation, current limiting during startup and switchover, and adjustable output current limiting. It is available in a 20-pin WCSP package and operates over a temperature range of –40°C to 125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.8 V to 22 V | V |
| Absolute Maximum Input Voltage | 24 V | V |
| RON Resistance (Typical) | 62 mΩ | mΩ |
| Quiescent Current (INx Powering OUT) | -40°C to 125°C: See datasheet for detailed values | A |
| Output Current Limiting | Adjustable with external resistor | A |
| Package Type | WCSP (20-pin) | - |
| Body Size (Nominal) | 1.5 mm x 2.0 mm | mm |
| Operating Temperature Range | –40°C to 125°C | °C |
Key Features
- Automatic and manual input source selection with priority voltage supervisor
- Seamless switchover between input sources with ideal diode operation
- Current limiting during startup and switchover to protect against overcurrent events
- Adjustable output current limiting using an external resistor
- Over-temperature protection (OTP) and adjustable over-voltage supervisor (OVx)
- Low RON resistance of 62 mΩ (typical)
- Operating temperature range of –40°C to 125°C
Applications
- Backup and standby power systems
- Input source selection in multiple power source systems
- Multiple battery management systems
- EPOS and barcode scanners
- Building automation and surveillance systems
- Tracking and telematics systems
Q & A
- What is the input voltage range of the TPS2124YFPR?
The input voltage range is from 2.8 V to 22 V.
- What is the typical RON resistance of the TPS2124YFPR?
The typical RON resistance is 62 mΩ.
- How does the TPS2124YFPR handle switchover between input sources?
The device uses ideal diode operation to seamlessly transition between input sources, controlling voltage drop to block reverse current and provide uninterrupted power to the load.
- Can the output current limiting be adjusted?
Yes, the output current limiting can be adjusted using an external resistor.
- What is the operating temperature range of the TPS2124YFPR?
The operating temperature range is from –40°C to 125°C.
- What types of applications is the TPS2124YFPR suitable for?
The TPS2124YFPR is suitable for backup and standby power, input source selection, multiple battery management, EPOS and barcode scanners, building automation and surveillance, and tracking and telematics systems.
- What package type is the TPS2124YFPR available in?
The TPS2124YFPR is available in a 20-pin WCSP package.
- Does the TPS2124YFPR have over-temperature protection?
Yes, the device includes over-temperature protection (OTP).
- Can the input source be manually selected?
Yes, an external controller such as an MCU can be used to manually select between the two input sources.
- What is the body size of the TPS2124YFPR package?
The body size is 1.5 mm x 2.0 mm.
