BANGALORE, INDIA: Texas Instruments Inc. (TI) has introduced three new switch-mode standalone battery charger ICs for lithium-based battery-powered applications with a 5-V to 28-V input.
These devices provide highly accurate and efficient charging in a small package for mass market applications, such as industrial handhelds, mobile Internet devices (MIDs), netbooks, power tools and portable medical devices.
These devices offer a constant-frequency synchronous switching pulse-width modulation (PWM) controller with highly accurate charge current and voltage regulation, charge preconditioning, termination, adapter current regulation and charge status monitoring. The battery is charged in three phases: preconditioning, constant current and constant voltage. A programmable charge timer provides a safety backup.
Key features and benefits
* Higher efficiency results in less heat dissipation than other solutions.
* Greater than 99 percent charge voltage and current accuracy optimize battery life cycle.
* Integrated, standalone solution enhances design flexibility and reduces overall solution size.
* Dynamic power management maximizes use of adapter power to power the system while charging the battery.
New battery charger selection tool helps speed selection process
TI provides a broad range of battery charger ICs that support single-cell and multi-cell battery packs used in handheld, portable medical and portable industrial equipment.
Designers can select recommended products using TI’s new Battery charger selector tool, where one can choose criteria based on battery chemistry, number of cells, topology needed and battery voltage levels.
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