CN3158 Lithium-ion/Polymer Battery Charging IC CONSONANCE ESOP-8 3158 CN3158

Product Overview

The FM05PF, manufactured by Fine Made Microelectronics Group Co., Ltd., is a professional 5-cell rechargeable battery protection IC designed for high-demand applications like electric tools, electric bicycles, and UPS systems. It provides comprehensive monitoring of cell voltage, charge/discharge current, and ambient temperature.

Key Features

• High-Precision Voltage Monitoring: Ensures the safety of each individual battery cell within the 5-cell series stack.

• Adjustable Delay Times: Protection delay times for overcharge, over-discharge, and overcurrent conditions can be customized by adjusting the value of external capacitors.

• Comprehensive Protection: Monitors cell voltage, charge/discharge current, and ambient temperature to trigger safety shutdowns during overcurrent, short-circuit, or overcharge/discharge events.

• High Integration: Combines complex monitoring logic into a single device to reduce component count in battery management systems.

• Selectable Cell Count: Features a SET terminal allowing for configuration between 4-cell and 5-cell applications.

• Temperature Management: Includes an NTC thermistor interface and an adjustable high-temperature protection threshold via an external resistor.

Protection Delay Time Calculation

The protection delay times are determined by external capacitors connected to specific pins. The delay values in seconds are calculated as follows:

• Overcharge Delay: 10,000,000 multiplied by the capacitance value (in Farads).

• Over-discharge Delay: 10,000,000 multiplied by the capacitance value (in Farads).

• Discharge Overcurrent 1 Delay: 2,000,000 multiplied by the capacitance value (in Farads).

• Discharge Overcurrent 2 Delay: 200,000 multiplied by the capacitance value (in Farads).