The R5458L102AA-TR is a battery protection IC manufactured by Ricoh. It is designed to protect lithium-ion and lithium-polymer batteries from overcharge, over-discharge, and overcurrent conditions, ensuring safe and reliable battery operation.

Applications

• Smartphones: Battery protection in mobile phones.
• Tablets: Safeguarding battery performance in tablets.
• Wearable devices: Protection for batteries in smartwatches and fitness trackers.
• Portable power tools: Ensuring battery safety in cordless drills and drivers.
• Power banks: Protecting batteries in portable charging devices.

Features

• Overcharge Protection: Prevents the battery from being charged beyond its safe voltage limit.
• Over-discharge Protection: Prevents the battery from being discharged below its safe voltage limit.
• Overcurrent Protection: Limits the current flowing into and out of the battery to prevent damage.
• Short-circuit Protection: Quickly shuts down the battery in case of a short circuit.
• High Accuracy Detection: Accurate voltage and current detection for reliable protection.
• Low Quiescent Current: Minimizes power consumption when the battery is idle, extending battery life.
• Small Package Size: Available in a compact package for space-constrained applications.

Benefits

• Enhanced Battery Safety: Protects batteries from damage due to overcharge, over-discharge, and overcurrent conditions.
• Extended Battery Life: Prevents battery degradation caused by improper charging and discharging.
• Improved System Reliability: Ensures stable and reliable battery operation.
• Simplified Circuit Design: Integrates multiple protection functions into a single chip, reducing BOM cost and board space.
• Compliance with Safety Standards: Helps meet safety standards for battery-powered devices.

Additional Details

The R5458L102AA-TR typically includes features such as a charge/discharge control pin, an overvoltage detection pin, and an undervoltage detection pin. It often operates with a supply voltage range of 2.5V to 5.5V. The datasheet provides detailed specifications including protection thresholds, current consumption, and package dimensions.