Dual AA Intelligent Battery Power Pack




Product Description

This xCHIP module houses 2 AA batteries to supply power to other connected xCHIPS. The PB04 makes use of the INA199A2 current sensor and MAX11647 Analog to Digital Converter. These two low-cost precision sensors allows for accurately measuring power usage, battery voltage and current draw.

The PB04 features an AAT1217 which is a high efficiency, synchronous, fixed frequency, step-up converter designed for battery-powered applications. The high 1.2 MHz switching frequency and completely integrated control circuitry maintains excellent regulation, ripple, and transient response throughout the full load range.

Light load mode operation and low quiescent current allow the AAT1217 to maintain high efficiency performance for light load conditions. With a 1.2A peak inductor current limit, the AAT1217 is capable of delivering 400mA from dual AA cells batteries.

Product Highlight

  • Provides Battery Voltage (V) Measurement
  • Provides Instantaneous Battery Current (I)(mA) Consumption
  • 400 mA Output Current
  • Over-Current Protection
  • High Efficiency: Up to 93% Efficiency
  • 1.2 MHz Fixed Switching Frequency
  • 1.2 A Current Limit
  • Light Load Mode Operation



  • 400 mA Output from Dual AA Cell
  • High Efficiency: Up to 93% Efficiency
  • Internal Synchronous Rectifier
  • Fixed Frequency Pulse Width Modulation (PWM) Current Mode Control Scheme with Internal Compensation
  • 1.2 MHz Fixed Switching Frequency
  • 1.2 A Current Limit
  • Light Load Mode Operation
  • Over-Current Protection
  • EMI Reduction Anti-Ringing Control Circuitry
  • Low Shutdown Current: <1.0 μA
  • -40°C to +85°C Ambient Temperature Range


  • Offset Voltage: ±150 μV (Maximum) (Enables Shunt Drops of 10-mV Full-Scale)
  • Accuracy:
    1. Gain Error ±1.5%
    2. 0.5-μV/°C Offset Drift
    3. 10-ppm/°C Gain Drift
  • Quiescent Current: 100 μA


  • Internal Reference
  • Internal Clock
  • Internal FIFO with Channel-Scan Mode
  • Low Power:
    1. 670µA at 94.4ksps
    2. 230µA at 40ksps
    3. 60µA at 10ksps
    4. 6µA at 1ksps
    5. 0.5µA in Power-Down Mode


This xCHIP has no batteries included



Dual AA Intelligent Battery Power Pack

AAT1217 Datasheet

INA199A2 Datasheet

MAX11647 Datasheet


See this tutorial to get XinaBox ready for micro:bit  in English

See this tutorial to get XinaBox ready for micro:bit in Chinese


XinaBox is pronounced as  X-in-a-Box!

The XinaBox range currently includes over 80 sensors, bridges, cores, interfaces and other types of peripherals, and it is growing all the time. These ‘xChips’ will help you to super-charge your BBC micro:bit:

Micro:bit ready:  see here for full details

 The connection - plug and play, no wire

Build simple and complex circuits quickly and easily. The modular system allows you to connect xChips like building blocks - anyone can build a circuit in seconds, with no need for soldering irons, breadboards or consumables. And when you are done, disassemble the circuit and start again! It takes seconds when you know how.




HK$ 204.00