DATA SHORT
To request the full datasheet, please visit www.intersil.com/products/isl88732 ISL88732 FN7946
Rev.0.00
September 25, 2012 SMBus Level 2 Battery Charger with Boost Mode
The ISL88732 is a highly integrated Lithium-ion battery charger
controller, programmable over the SMBus system management
bus (SMBus). The ISL88732 is intended to be used in a smart
battery charger (SBC) within a smart battery system (SBS) that
throttles the charge power such that the current from the
AC-adapter is automatically limited. High efficiency is achieved
with a DC/DC synchronous-rectifier buck converter, equipped
with diode emulation for enhanced light load efficiency. The
ISL88732 charges one to four Lithium-ion series cells, and
delivers up to 8A charge current. Integrated MOSFET drivers
and bootstrap diode result in fewer components and smaller
implementation area. Low offset current-sense amplifiers
provide high accuracy with 10m sense resistors. The
ISL88732 provides 0.5% end-of-charge battery voltage
accuracy.
The ISL88732 is available in a small 5mmx5mm 28 Ld Thin
(0.8mm) QFN package. Boost Mode
If system load current is higher than the adapter current limit,
ISL88732 will operate in boost mode to draw power from the …