SMBus的Level 2电池充电器 SMBus Level 2 Battery Charger
The ISL88731 is a highly integrated Lithium-ion battery charger controller, programmable over the SMBus system management bus SMBus. The ISL88731 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 isautomatically 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.
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 Plus Anneal Available RoHS Compliant
Applications
• Notebook Computers
• Tablet PCs
• Portable Equipment with Rechargeable Batteries
