Overview
The TPS2110PWRG4, part of the TPS211x family from Texas Instruments, is a two-input, one-output power multiplexer designed to enable seamless transition between two power supplies. This device is particularly useful in applications where a system needs to switch between a battery and a wall adapter, or any other dual power supply scenario. The TPS2110PWRG4 operates within a wide voltage range of 2.8 V to 5.5 V and can deliver up to 0.9 A of continuous output current.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range (IN1, IN2) | 2.8 | 5.5 | V | |
| Continuous Output Current (IO) | 0.9 | A | ||
| Switch On-Resistance (rDS(on)) | 120 | mΩ | ||
| Standby Current | 0.5 | µA | ||
| Operating Current | 55 | µA | ||
| Current Limit Adjustment Range | 0.31 | 0.75 | A | |
| Operating Virtual Junction Temperature | -40 | 125 | °C | |
| Storage Temperature Range | -65 | 150 | °C |
Key Features
- Two-input, one-output power multiplexer with low rDS(on) switches (120 mΩ typical for TPS2110)
- Reverse and cross-conduction blocking
- Wide operating voltage range: 2.8 V to 5.5 V
- Low standby current: 0.5 µA typical
- Low operating current: 55 µA typical
- 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
- Manual and auto-switching operating modes
- Thermal shutdown protection
- Available in a TSSOP-8 package
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 TPS2110PWRG4?
The TPS2110PWRG4 is a power multiplexer that enables seamless transition between two power supplies, such as a battery and a wall adapter.
- What is the operating voltage range of the TPS2110PWRG4?
The device operates within a voltage range of 2.8 V to 5.5 V.
- What is the maximum continuous output current of the TPS2110PWRG4?
The maximum continuous output current is 0.9 A.
- What are the key protection features of the TPS2110PWRG4?
The device includes user-programmable current limiting, thermal protection, inrush current control, seamless supply transition, cross-conduction blocking, and reverse-conduction blocking.
- What are the control input compatibility of the TPS2110PWRG4?
The control inputs are compatible with both CMOS and TTL logic.
- What are the switching modes available for the TPS2110PWRG4?
The device supports both manual and auto-switching operating modes.
- How does the TPS2110PWRG4 manage inrush current?
The device controls the output voltage transition times to limit inrush current and minimize the output voltage hold-up capacitance requirement.
- What package type is the TPS2110PWRG4 available in?
The device is available in a TSSOP-8 package.
- What is the storage temperature range for the TPS2110PWRG4?
The storage temperature range is -65°C to 150°C.
- How is the current limit adjusted in the TPS2110PWRG4?
A resistor RILIM from ILIM to GND sets the current limit; for the TPS2110, it is 250/RILIM.
