TI Introduces First Single-cell, Dual-input Li-Ion Battery Charger Family for Tablets, E-readers and Smartphones

Texas Instruments Inc. (TI) introduced a battery charger integrated circuit to support higher cell capacity batteries and increasing battery charge currents of tablets, e-readers and smartphones. The highly integrated single-cell Li-Ion battery charger has dual inputs, which allow operation from either a USB port or higher power input supply (ac adapter or wireless power input). The two inputs are fully independent from each other and are easily configurable using the I²C interface or stand-alone interface.

Key features and benefits include:

– Integrated FETs support charge rates up to 2.5 A (10.5 W) from IN input, and 1.5 A from USB input.

– Dual source inputs, AC adapter and USB 2.0/3.0 compatibility provide flexibility in design and applications.

– D+/D- auto adapter for USB input ease system design and reduce external components.

– 20V input with 10.5V over voltage protection supports low-cost unregulated adapters and poor USB sources.

– Integrated power path allows system startup from deeply discharged or no battery power operating conditions.

– BC1.2 compliance, JEITA charging support and thermal regulation protection help to provide safe and accurate battery operation.

The bq2416x battery chargers are available now in a 49-pin WCSP package; suggested resale pricing starts at $3.00 in quantities of 1,000.