The R5478N101CD-TR-FF is a battery protection IC manufactured by Nisshinbo Micro Devices Inc. It is designed to protect lithium-ion (Li-ion) and lithium-polymer (Li-Po) batteries in various applications. This IC provides essential safety features to prevent overcharge, over-discharge, and overcurrent conditions, ensuring the longevity and safety of the battery and the device it powers.

Applications

• Smartphones
• Tablets
• Wearable devices (smartwatches, fitness trackers)
• Portable media players
• Bluetooth headphones and speakers
• Other battery-powered devices requiring Li-ion/Li-Po protection

Features

• Overcharge protection: Prevents the battery voltage from exceeding a safe limit during charging.
• Over-discharge protection: Prevents the battery voltage from dropping below a safe limit during discharge.
• Overcurrent protection: Limits the current flowing into or out of the battery to prevent damage.
• Short-circuit protection: Immediately shuts off the current flow in the event of a short circuit.
• High-accuracy voltage detection: Ensures precise protection thresholds.
• Low current consumption: Minimizes the impact on battery life.
• Small package size: Suitable for compact devices.

Benefits

• Extends battery life by preventing damage from overcharge, over-discharge, and overcurrent conditions.
• Enhances safety by preventing battery overheating, fire, or explosion.
• Reduces the risk of device malfunction due to battery problems.
• Improves the reliability and longevity of battery-powered devices.
• Simplifies battery management circuitry.

Additional Details

The R5478N101CD-TR-FF typically operates with a low supply current (e.g., in the microamp range) to minimize its impact on battery life. The specific protection voltage thresholds (overcharge, over-discharge) and current limits (overcurrent, short-circuit) are precisely calibrated to ensure optimal battery protection. Consult the Nisshinbo Micro Devices datasheet for complete technical specifications, application notes, and recommended external component values. The "-TR-FF" suffix likely indicates specific packaging and reel options for automated assembly.