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nPM1304 电源管理IC

支持小型电池产品的高度集成的电源管理IC (PMIC)

nPM1304 PMIC 是对 Nordic 屡获殊荣的 nPM1300 PMIC 的补充,为智能戒指、人体传感器和其他小尺寸电池应用提供了高度集成的超低功耗解决方案和精密电量计。 

nPM1304 PMIC 为小型电池产品带来了独特的系统管理功能和业界首款超低功耗精密电量计。Nordic 独特的基于算法的电量计方法使用电压、电流和温度监测以及数学电池模型来估计电池的充电状态。这种方法可获得与库仑计数器等专用电量计设备相当的精度,但没有额外的功耗和固有的误差累积。

nPM1304 经过优化,具有最高效率和紧凑尺寸,可通过兼容 I2C 的双线接口 (TWI) 进行配置。通过该接口,可以方便地配置一系列高级系统管理功能,包括双键硬复位、电池电量计、系统级看门狗、掉电警告和启动失败恢复。在嵌入式设计中,这些功能通常是作为分立元件实现的,而 nPM1304 则将这些功能集成到单个紧凑型封装中,从而简化了系统设计并减少了所需元件的数量。 

nPM1304 可管理 Nordic 的 nRF52、nRF53 以及 nRF54L 和 nRF54H 系列无线多协议系统级芯片 (SoC) 以及任何其他微控制器 (MCU) 的电源,优化了最高效率和紧凑尺寸。 

联系Nordic 官方授权代理或咨询销售部门以参与早期样品计划。

如需获取本页信息的单页打印格式,请下载 nPM1304 产品简介。 

 

Key features
  • 4 - 100 mA battery charger
  • Two 200 mA buck DCDC regulators
  • Two 100 mA Load switches / 50 mA LDOs
  • 370 nA Ship Mode & 500 nA Hibernate mode
  • Hard reset for one or two buttons 
  • Fuel gauge
  • System-level watchdog and failed-boot recovery
  • Intelligent power loss warning
  • Five GPIOs 
  • Three LED drivers
  • Controlled via I2C compatible TWI
  • USB-C compatible 

Accurate fuel gauging is essential for any battery‑powered device, giving users clear and reliable insight into how much energy is left and helping avoid unexpected shutdowns.

Nordic’s fuel gauging provides accurate state of charge information for all supported battery types. Battery state of health is also supported for rechargeable batteries - tracking actual capacity and aging over time to understand how the battery performs throughout its lifetime. This deeper insight helps devices stay reliable for longer and makes rechargeable battery replacement more predictable.

By combining high accuracy with ultra‑low power operation - including zero power consumption in sleep - and low system cost, the Nordic algorithm-based fuel gauge solution delivers accurate battery information without extra components, licensing fees, or impact on battery life.