Intersil ISL88731AHRTZ ISL88731 ISL88731A SMBus Level 2 Battery Charger IC Chip
1 x Genuine / New
Description
The ISL88731A is a highly integrated Lithium-ion battery charger controller, programmable over the SMBus system management bus (SMBus). The ISL88731A 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 and system bus boosting prevention. The ISL88731A 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.
The ISL88731A provides a digital output that indicates the presence of the AC-adapter as well as an analog output which indicates the adapter current within 4% accuracy.
=======Key Features
0.5% Battery Voltage Accuracy
3% Adapter Current Limit Accuracy
3% Charge Current Accuracy
SMBus 2 Wire Serial Interface
Battery Short Circuit Protection
Fast Response for Pulse-Charging
Fast System-Load Transient Response
Monitor Outputs
Adapter Current (3% Accuracy)
AC-Adapter Detection
11-Bit Battery Voltage Setting
6 Bit Charge Current/Adapter Current Setting
8A Maximum Battery Charger Current
11A Maximum Adapter Current
+8V to +28V Adapter Voltage Range
Pb-Free (RoHS compliant)
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