Smartphones and other handheld equipment with 3AHr+ 1S Li-Ion batteries require 3-A+ charger current for fast charging. Parallel chargers allow for high charge currents, resulting in shorter charge times, while distributing the heat losses across the end equipment PCB, thereby preventing hotspots. In cascade configuration, with PMID pin of master charger connected to VBUS of slave charger, input current limit management is handled through the master charger, thereby simplifying software development.
| Output voltage options | PMP15011.1 |
|---|---|
| Vin (Min) (V) | 4.5 |
| Vin (Max) (V) | 14 |
| Vout (Nom) (V) | 4.2 |
| Iout (Max) (A) | 5 |
| Output Power (W) | 21 |
| Isolated/Non-Isolated | Non-Isolated |
| Input Type | DC |
| Topology | Buck- Synchronous |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Test results for the reference design, including efficiency graphs, test prerequisites and more
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
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Design file that contains information on physical board layer of design PCB
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Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | Cascade Dual Charger Reference Design for 1S Li-Ion Battery-Powered Equipment | Nov. 03, 2016 |
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