The ISL88706IB844Z-TK is a highly integrated battery charger and power management IC from Intersil (now Renesas). It is designed to provide a complete charging solution for multi-chemistry battery packs, commonly used in notebook computers, tablets, and other portable devices. This IC integrates battery charging, system power management, and protection features into a single chip, reducing component count and board space.

Applications

• Notebook computers.
• Tablet PCs.
• Portable media players.
• Power banks.
• Mobile internet devices (MIDs).

Features

• Multi-chemistry battery charging support (Li-ion, Li-polymer).
• SMBus/I2C programmable charging parameters.
• Integrated system power management.
• Overvoltage protection (OVP).
• Overcurrent protection (OCP).
• Short-circuit protection (SCP).
• Thermal protection.
• Automatic power source selection.

Benefits

• Simplified battery charging system design.
• Reduced component count and board space.
• Optimized charging performance for various battery types.
• Enhanced battery safety and longevity.
• Improved system reliability with integrated protection features.
• Flexible programmability for custom charging profiles.

Additional Details

The ISL88706IB844Z-TK typically operates with an input voltage range suitable for AC adapters and USB power sources. It supports various charging modes, including constant current (CC) and constant voltage (CV) charging. The charging parameters can be dynamically adjusted through the SMBus/I2C interface, allowing for precise control over the charging process. The integrated protection features safeguard the battery and system from damage due to overvoltage, overcurrent, short circuits, and excessive temperature. It usually comes in a small, thermally enhanced package.