1. Main features and technical specifications
The NB401 battery management IC integrates high-precision power calculation method, supports 2-4 series lithium-ion battery or lithium-polymer battery management and metering, and has multiple advantages such as battery monitoring, metering, protection, and certification. The chip integrates both hardware protection and wake-up functions, supports SMBus communication, intelligent charging management, and various security certifications, and has ultra-low power consumption characteristics.
The main technical specifications of the product are as follows:
- Battery type: Li-ion/Li-poly
- Number of battery cells: 2-4
- Battery capacity: 100mAh~500Ah
- Sampling accuracy (Typ.): voltage ±1mV, current ±1mA, temperature ± 2℃
- Electricity meter accuracy: 1%(at room temperature) / 3%(at full temperature)
- LED display: 0-6
- Communication protocol: SMBus
- Security protection: OLD, SCC, SCD1/2
- Features: High side NMOS*2, balanced, watchdog, SHA/ECC based authentication
- Working voltage: 2.3V~26V
- Working temperature: -40℃~+85℃
- Packaging: QFN32 (4mm x 4mm)
2. Main advantages and application areas
The NB401 battery management chip has the advantages of high-precision measurement and battery charging and discharging protection, battery authentication based on security hardware algorithms and digital ID cards, excellent power consumption control and battery balance, support for BMS function expansion, and high reliability. It can meet the needs of most battery management or measurement applications in consumer electronics fields such as laptops, tablet computers, drones, power tools, and mobile power supplies.