2.8-V to 22-V priority power MUX with seamless switchover
Product details
Parameters
Package | Pins | Size
Features
- 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)
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Description
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.
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | TPS2124 2.8-V to 22-V Priority Power MUX with Seamless Switchover datasheet | Jan. 27, 2020 |
| User guide | TPS2124 Evaluation Module | Apr. 08, 2020 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The TPS2124 EVM is an evaluation module for TI's TPS2124 two-input, one-output power multiplexer. This device automatically detects, selects, and seamlessly transitions between two power supplies, each operating from 2.7 V to 22 V. The TPS2124 device, WCSP package, can deliver up to 2 A to a (...)
Features
- Adjustable overvoltage protection
- Adjustable priority voltage input
- Adjustable soft start/input settling time
- Seamless switchover between input sources
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| DSBGA (YFP) | 20 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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