nPM1300 is a highly integrated Power Management IC (PMIC) for rechargeable applications. It is design compatible with an nRF52, nRF53, or nRF54 Series System on Chip (SoC), nRF91 Series System in Package (SiP), and third party host devices for developing low-power wireless solutions.
nPM1300 has several power and system management features that can be implemented with dedicated components. Power management is achieved through flexible power regulation and a linear-mode lithium-ion (Li-ion), lithium-polymer (Li-poly), and lithium iron phosphate (LiFePO4) battery charger in a compact 3.1x2.4 mm WLCSP or 5x5 mm QFN32 package. A minimum of five passive components are required.
nPM1300 supports charging up to 800 mA and delivers up to 500 mA of adjustable regulated voltage. Power is supplied to external components from two configurable, dual mode 200 mA BUCK regulators, and two dual purpose 50 mA LDO/100 mA load switches. In addition, an unregulated power rail, VSYS, delivers up to 1 A when powered from battery, or up to 1.5 A when powered from a USB port configured as DCP. The maximum total current on VSYS is 1.5 A.
The host can read battery temperature, voltage, and current, which are utilized by a fuel gauge algorithm in the nRF Connect Software Development Kit. The fuel gauge provides the application with a battery state-of-charge estimate comparable to Coulomb counters at a significantly lower power consumption.
Low quiescent current (IQ) extends battery life during shipping and storage with Ship mode. Battery life can also be extended during operation with auto-controlled Hysteretic mode for high efficiency down to 1 µA load currents.
The integrated system management features reduce the cost and size of applications. The following integrated features are found in the device:
- System-level watchdog
- Intelligent power-loss warning
- Ship and Hibernate modes for increased battery life
- Up to 5 GPIO pins and 3 LED drivers
- System Monitor
- Ultra-low power, high accuracy fuel gauge tailored for embedded IoT applications
System management features and I/Os are configured through an I2C compatible two-wire Interface (TWI).
The nPM1300 Evaluation Kit provides simple evaluation and code-free configuration of nPM1300. Connecting to the nPM PowerUP app found in nRF Connect for Desktop enables the nPM1300 settings to be easily configured through an intuitive GUI and exported as code to be implemented in your MCU's application.