NBM7100ABQX

Specialized ICS Overview

The NBM7100ABQX is a battery energy management device designed to maximize usable capacity from non-rechargeable primary batteries in low-voltage, low-power applications requiring burst current loads. It utilizes two high-efficiency DC-DC conversion stages and an intelligent learning algorithm to transfer energy from the battery to a capacitive storage element at a low constant current (2 mA to 16 mA). The second stage supplies a regulated voltage with high pulse load current capability on the VDH output pin. The device features an I²C serial interface for configuration and monitoring.

Specialized ICS Feature Summary

• Programmable constant battery load current: 2 mA to 16 mA
• Pulse output current: > 200 mA
• Low ripple regulated programmable output voltage (VDH): 1.8 V to 3.6 V
• Ultra-low standby current: 20 nA (typ)
• Integrated fuel gauge and adaptive power optimization

Specialized ICS Applications

• Battery powered wireless microcontroller applications (IoT): Bluetooth®, LoRaWAN®, Sigfox™, LTE-M, NB-IoT, Zigbee
• Industrial sensors: temperature, occupancy, e-metering, electronic shelf label, asset tracking, irrigation monitoring
• Consumer/wearable devices: location tags, heart rate monitor, blood glucose meter, remote controls, key fobs

Specialized ICS Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm the communication interface. The 'A' variant supports I²C, while the 'B' variant uses SPI. Ensure the package type DHVQFN16 matches the PCB footprint requirements. Confirm RoHS compliance and operating temperature range specifications (-40 °C to +85 °C) prior to procurement.

Specialized ICS Selection Notes

Select this component when extending the life of lithium coin cell batteries (e.g., LiMnO2) is critical. The NBM7100ABQX is suitable for designs requiring I²C control. Designers must account for external components including a 15 µH inductor and appropriate capacitors as specified in the recommended components table. Ensure the application load profile matches the device's pulse current capabilities.

Specialized ICS Part Context

The NBM7100ABQX belongs to the Nexperia NBM7100 family of coin cell battery life boosters. It is functionally similar to the NBM7100BBQX but differs in its serial interface; the ABQX uses I²C while the BBQX uses SPI. Both share the same SOT763-1 (DHVQFN16) package and thermal characteristics.

Specialized ICS Replacement Considerations

NBM7100BBQX is a functional alternative within the same family, offering identical electrical performance but utilizing an SPI interface instead of I²C. System firmware must be updated to support the SPI protocol if substituting the BBQX for the ABQX.