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Product Overview

The FM05PF, manufactured by Fine Made Microelectronics Group Co., Ltd., is a professional 5-cell rechargeable battery protection integrated circuit. It is designed for high-demand power applications such as electric tools, electric bicycles, and uninterruptible power supply (UPS) back-up systems.

Core Specifications

• Manufacturer: Fine Made Microelectronics Group Co., Ltd.

• Package Type: TSSOP-20

• Function: 5-Cell Rechargeable Battery Protection IC

• Key Detection Voltages: * Overcharge Detection: 3.75 V

  • Overcharge Recovery: 3.60 V

  • Over-discharge Detection: 2.20 V

  • Over-discharge Recovery: 2.40 V

• Overcurrent Protection: 3-stage discharge overcurrent detection (0.10 V, 0.20 V, and 0.40 V short-circuit) and charging overcurrent detection (-0.05 V).

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.