Overview
The TPS2113PWR, produced by Texas Instruments, is a power multiplexer designed to enable seamless transition between two power supplies. This component is part of the TPS211x family and is particularly useful in applications where dual power sources are available, such as a battery and a wall adapter. The TPS2113PWR operates within a voltage range of 2.8 V to 5.5 V and can deliver up to 1 A of current. It features extensive protection circuitry, including user-programmable current limiting, thermal protection, inrush current control, and cross-conduction blocking, making it a robust solution for power management in various electronic devices.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.8 V to 5.5 V | V |
| Output Current | Up to 1 A | A |
| On-Resistance (rDS(on)) | 84 mΩ (Typical) | mΩ |
| Standby Current | 0.5 µA (Typical) | µA |
| Operating Current | 55 µA (Typical) | µA |
| Current Limit Adjustment Range | 0.63 A to 1.25 A | A |
| Operating Virtual Junction Temperature | -40°C to 125°C | °C |
| Package Type | TSSOP-8 |
Key Features
- Two-input, one-output power multiplexer with low rDS(on) switches
- Reverse and cross-conduction blocking
- Wide operating voltage range: 2.8 V to 5.5 V
- Low standby and operating currents
- Adjustable current limit
- Controlled output voltage transition times to limit inrush current and minimize output voltage hold-up capacitance
- CMOS and TTL compatible control inputs
- Auto-switching operating mode
- Thermal shutdown protection
Applications
- Personal Computers (PCs)
- Personal Digital Assistants (PDAs)
- Digital Cameras
- Modems
- Cell Phones
- Digital Radios
- MP3 Players
Q & A
- What is the primary function of the TPS2113PWR?
The primary function of the TPS2113PWR is to enable seamless transition between two power supplies, such as a battery and a wall adapter.
- What is the operating voltage range of the TPS2113PWR?
The operating voltage range of the TPS2113PWR is 2.8 V to 5.5 V.
- What is the typical on-resistance (rDS(on)) of the TPS2113PWR?
The typical on-resistance (rDS(on)) of the TPS2113PWR is 84 mΩ.
- How does the TPS2113PWR handle current limiting?
The TPS2113PWR allows for adjustable current limiting, which can be set using a resistor connected to the ILIM pin.
- What protection features does the TPS2113PWR include?
The TPS2113PWR includes protection features such as reverse and cross-conduction blocking, thermal shutdown, and inrush current control.
- What is the package type of the TPS2113PWR?
The TPS2113PWR is available in a TSSOP-8 package.
- How does the auto-switching mode work in the TPS2113PWR?
In auto-switching mode, the TPS2113PWR connects the output to the higher of the two input supplies based on the VSNS voltage and the logic state of the EN input.
- What are some common applications for the TPS2113PWR?
Common applications include PCs, PDAs, digital cameras, modems, cell phones, digital radios, and MP3 players.
- How does the TPS2113PWR manage inrush current?
The TPS2113PWR controls output voltage transition times to limit inrush current and minimize output voltage hold-up capacitance.
- Is the TPS2113PWR compatible with TTL and CMOS logic?
