This reference design provides a solution for charging the 7-cell Li-ion battery. It is an integrated Li-ion or Li-polymer switch-mode battery charge controller solution. It offers a constant-frequency synchronous switching PWM controller with high-accuracy charge current and voltage regulation. Other features include charge preconditioning, termination, and charge status monitoring. The solution board charges the battery in three phases: preconditioning, constant current, and constant voltage. Charge is terminated when the current reaches a minimum user-selectable level. A programmable charge timer provides a safety backup for charge termination. The design automatically restarts the charge cycle if the battery voltage falls below an internal threshold, and enters a low-quiescent current sleep mode when the input voltage falls below the battery voltage.
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
PCB layer plot file used for generating PCB design layout
| Type | Title | Date | ||
|---|---|---|---|---|
| Test report | TIDA-00040 Test Results | Aug. 26, 2013 |
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