DATA SHORT
To request the full datasheet, please visit www.intersil.com/products/isl88733 ISL88733 FN8347
Rev 0.00
September 25, 2012 SMBus Level 2 Battery Charger
The ISL88733 is a highly integrated Lithium-ion battery charger
controller, programmable over the SMBus system management
bus (SMBus). The ISL88733 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
ISL88733 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 10mО© sense resistors. The
ISL88733 provides 0.5% end-of-charge battery voltage
accuracy.
The ISL88733 is available in a small 5mmx5mm 28 Ld Thin
(0.8mm) QFN package. Features Pin compatible with ISL88731 Over-temp and overcurrent protection 0.5% battery voltage accuracy 4% adapter current limit accuracy 3% charge current accuracy SMBus 2-wire serial interface Charge current limited by SMBus DAC OR analog voltage at
the CCLIM pin Monitor outputs
-Adapter current (3% Accuracy) …
