Overview
The TPS2115ADRBTG4 from Texas Instruments is a member of the TPS211xA family of power multiplexers. This component is designed to enable seamless transition between two power supplies, making it ideal for applications where dual power sources are available and one needs to be prioritized over the other.
The TPS2115ADRBTG4 features low on-resistance switches, adjustable current limiting, and reverse conduction blocking, ensuring reliable and efficient power management.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Input Voltage Range (IN1, IN2) | 2.8 | - | 5.5 | V |
| Output Voltage Range (OUT, STAT) | -0.3 | - | 6 | V |
| Continuous Output Current (IO) | - | - | 1.5 A (TPS2115APW), 2.5 A (TPS2115ADRB, TJ ≤ 105°C) | A |
| On-State Resistance (rDS(on)) | 84 | 110 | 140 | mΩ |
| Operating Junction Temperature (TJ) | -40 | - | 125 | °C |
| Current Limit Adjustment Range | 0.63 | 1.25 | 2 | A |
| Standby Current | - | 0.5 | - | μA |
| Operating Current | - | 55 | - | μA |
Key Features
- Two-input, one-output power multiplexer with low on-resistance switches (84 mΩ typical for TPS2115A)
- Wide operating voltage range: 2.8 V to 5.5 V
- Adjustable current limit (0.63 A to 2 A for TPS2115A)
- Reverse and cross-conduction blocking
- Low standby current (0.5 μA typical) and low operating current (55 μA typical)
- Switch status output
- Automatic and manual switching modes
- Available in TSSOP-8 and SON-8 packages
Applications
- Personal Computers (PCs)
- Personal Digital Assistants (PDAs)
- Digital Cameras
- Modems
- Cell Phones
- Digital Radios
- MP3 Players
- Other portable electronic devices requiring dual power sources
The TPS2115ADRBTG4 is particularly useful in systems where there is a need to switch between two power supplies, ensuring that the system remains operational even if one power source fails or is removed.
Q & A
- What is the primary function of the TPS2115ADRBTG4?
The primary function of the TPS2115ADRBTG4 is to act as a power multiplexer, allowing seamless transition between two power supplies.
- What is the typical on-state resistance of the TPS2115A?
The typical on-state resistance (rDS(on)) of the TPS2115A is 84 mΩ.
- What is the operating voltage range for the TPS2115ADRBTG4?
The operating voltage range for the TPS2115ADRBTG4 is from 2.8 V to 5.5 V.
- Can the current limit be adjusted on the TPS2115ADRBTG4?
- What are the available package options for the TPS2115ADRBTG4?
The TPS2115ADRBTG4 is available in TSSOP-8 and SON-8 packages.
- What is the standby current of the TPS2115ADRBTG4?
The standby current of the TPS2115ADRBTG4 is typically 0.5 μA.
- What is the operating current of the TPS2115ADRBTG4?
The operating current of the TPS2115ADRBTG4 is typically 55 μA.
- Does the TPS2115ADRBTG4 have reverse conduction blocking?
- What are some common applications for the TPS2115ADRBTG4?
- How does the TPS2115ADRBTG4 handle switching between power sources?
The TPS2115ADRBTG4 can switch between power sources automatically or manually, ensuring minimal output voltage droop and fast transition times.
