The ISL9200IRZ is a highly integrated single-cell Li-ion battery charger IC manufactured by Intersil (now Renesas). It is designed to efficiently and safely charge single-cell Lithium-ion (Li-ion) and Lithium-polymer (Li-Polymer) batteries. It's ideal for portable applications, such as smartphones, tablets, and other battery-powered devices.

Applications:

• Smartphones
• Tablets
• MP3 players
• Portable media players
• Low-power handheld devices

Features:

• Integrated synchronous buck charger
• High efficiency
• Programmable charge current
• Input overvoltage protection (OVP)
• Battery temperature monitoring
• Small package size

Benefits:

• Efficiently charges Li-ion batteries, maximizing battery life
• Reduces power dissipation, extending battery runtime
• Allows for flexible charging current settings based on battery capacity
• Protects the charger and battery from input voltage surges
• Ensures safe charging by monitoring battery temperature
• Saves board space in portable devices

Specifications:

The ISL9200IRZ operates from an input voltage range of 3.7V to 6V. It supports a programmable charge current up to 1.5A. The charging voltage is typically 4.2V for Li-ion batteries. It features an input overvoltage protection threshold, a battery temperature monitoring function. The switching frequency is high, usually above 1MHz allowing for small external component size. The package is a small QFN package.

The ISL9200IRZ integrates many features necessary for safe and efficient Li-ion battery charging. Its input overvoltage protection safeguards the device from external power surges, while battery temperature monitoring prevents thermal runaway. Its high efficiency minimizes power dissipation, contributing to longer battery life and cooler operation. The small package size makes it well-suited for portable devices with limited board space.