SLUS810K September 2008 – March 2015
The bq2407x series of devices are integrated Li-Ion linear chargers and system power path management devices targeted at space-limited portable applications. The devices operate from either a USB port or an AC adapter and support charge currents up to 1.5 A. The input voltage range with input overvoltage protection supports unregulated adapters. The USB input current limit accuracy and start up sequence allow the bq2407x to meet USB-IF inrush current specifications. Additionally, the input dynamic power management (VIN-DPM) prevents the charger from crashing incorrectly configured USB sources.
The bq2407x features dynamic power path management (DPPM) that powers the system while simultaneously and independently charging the battery. The DPPM circuit reduces the charge current when the input current limit causes the system output to fall to the DPPM threshold; thus, supplying the system load at all times while monitoring the charge current separately. This feature reduces the number of charge and discharge cycles on the battery, allows for proper charge termination and enables the system to run with a defective or absent battery pack.
|PART NUMBER||PACKAGE||BODY SIZE (NOM)|
|bq24072||VSON (16)||3.00 mm × 3.00 mm|
Changes from J Revision (January 2015) to K Revision
Changes from I Revision (January 2014) to J Revision
Changes from H Revision (December 2013) to I Revision
Changes from G Revision (July 2011) to H Revision
Changes from F Revision (September 2010) to G Revision
Changes from E Revision (August 2010) to F Revision
Changes from D Revision (June 2009) to E Revision
Changes from C Revision (March 2009) to D Revision
Changes from B Revision (January 2009) to C Revision
Changes from A Revision (December 2008) to B Revision
Changes from * Revision (September 2008) to A Revision