Nordic Semiconductor has introduced the launch of its nPM1300 PMIC (energy administration built-in circuit). With its two buck converters, two load switches/low drop out voltage converters (LDOs) and built-in battery charging, the nPM1300 is right for battery-operated purposes.

It reduces an end-product’s bill-of-materials (BoM) by combining circuitry that usually requires 5 or extra discrete parts right into a single chip. The launch is accompanied by the introduction of the nPM1300 analysis package (EK) and the nPM (node bundle supervisor) PowerUP PC app. The EK and the app allow builders to judge, configure, and implement the nPM1300 PMIC with out having to put in writing any code.

Correct gasoline gauging

The PMIC additionally brings system administration options and correct gasoline gauging for low energy wi-fi purposes. The algorithm-based gasoline gauge performance of the nPM1300 makes use of voltage, present, and temperature monitoring for increased accuracy than voltage-based gasoline gauges, whereas preserving the PMIC’s personal energy consumption significantly decrease than coulomb counter-type gasoline gauges.

“We’ve launched the nPM1300 to make it straightforward for builders so as to add a compact, optimised energy administration resolution to their low energy merchandise – eliminating the necessity to design-in system administration capabilities from scratch utilizing 5 or 6 discrete parts,” says Geir Kjosavik, product director – PMIC, Nordic Semiconductor. “And we’ve equally eliminated the complexity of PMIC analysis and improvement with the related analysis package. With the package and the nPM PowerUP app, builders can rapidly set issues as much as minimise the facility consumption of their utility with out the necessity to write any software program.” 

Builders utilizing Nordic’s nRF52 and nRF53 sequence, in addition to the just lately introduced nRF54H20 superior wi-fi multiprotocol systems-on-chip, will discover the nPM1300 is the match for his or her energy administration wants. The PMIC can also be appropriate for battery charging for purposes based mostly on the nRF9160 SiP (system in a bundle) for mobile IoT, through the use of the PMIC’s unregulated output to energy the nRF9160’s inside buck regulators.

Optimised for effectivity and measurement

The PMIC is optimised for max effectivity and compact measurement, and is configurable by an I2C (inter-integrated circuit)-compatible two wire interface (TWI). This interface allows entry to configure a spread of superior system administration capabilities, together with built-in exhausting reset performance from one or two buttons, correct battery gasoline gauging, system-level watchdog, energy loss warning, and restoration from failed boot. These capabilities are usually carried out as discrete parts in typical designs, however with the nPM1300 they exist as on-chip capabilities.

The nPM1300 PMIC operates from both a 4.0 to five.5 V exterior energy provide or a battery voltage all the way down to 2.4 V. Two energy rails are regulated by separate DC/DC (direct present) buck converters which are configurable between 1.0 and three.3 V and as much as 200 mA most present. The opposite two energy rails function as load switches – switching currents of as much as 100 mA from exterior sources – however may also carry out as LDOs when powered straight by the nPM1300. When working as LDOs, these energy rail outputs are configurable between 1.0 and three.3 V with a most output present of fifty mA. The unregulated enter voltage can also be out there as an output from the nPM1300.

Help for battery charging

The nPM1300 prices single-cell Li-ion, Li-poly, and LiFePO4 batteries with a linear charging module that helps as much as 800 mA (mili Ampere) cost present and programmable 3.5 to 4.45 V termination voltage. The battery charger options automated thermal regulation with programmable most chip temperature throughout charging.

The PMIC additionally options: USB port detection with automated present limits of 100 mA or 500 mA by customary USB (Common Serial Bus) or as much as 1500 mA by USB-C; energy path administration which routinely switches to battery energy if mains energy is eliminated; and extremely low present ship- and hibernate-mode with a programmable wake-up timer. The PMIC additionally options three LED (gentle emitting diodes) drivers and 5 GPIOs (common goal enter/output) that may be re-purposed to direct management traces to time-critical management capabilities as an alternative choice to serial instructions. Software examples for the nPM1300 embody superior wearables and moveable medical purposes.

Analysis Package eliminates the necessity to code

The nPM1300 EK makes it straightforward for builders to judge and configure the PMIC with out the necessity for any coding. By connecting the EK to the nPM PowerUP app discovered within the nRF Join for desktop (cross-platform improvement software program for Nordic merchandise), the settings of the nPM1300 might be merely configured by an intuitive graphical person interface (GUI). The configuration can then be ported to the SoC or microcontroller used for the IoT utility.

The EK options two USB-C connectors for information and energy connection, JST (Japan Solderless Terminal) battery connectors for batteries with or with out an inside NTC thermistor, and male pin headers for entry to all of the nPM1300’s connections. The EK’s three LEDs and 4 pushbuttons will also be used to judge the GPIO and LED driver performance of the PMIC.

The nPM1300 EK is accessible now by Nordic’s distribution companions, with the nPM1300 PMIC in QFN and CSP packages changing into out there for mass manufacturing in October 2023. Samples can be found by Nordic gross sales. 

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