Difference between revisions of "XinaBox Datasheet PB04 - Dual AA Intelligent Battery Power Pack"

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PB04 - Dual AA Intelligent Battery Power Pack (AAT1217, INA199, MAX11647)
PB04 V0.4.1 Front grande.jpg
Front
PB04 V0.4.1 Back grande.jpg
Back
Main Category Power
Sub Category Battery
Introduced 1 January 2017; 4 years ago (2017-01-01)
Current version 1.0.1
Current version date 1 January 2017; 4 years ago (2017-01-01)
Size 2x4U (32x64mm)
Weight 14 g (excluding batteries)
Height 21.6/17.2/3.3 mm
Main Chip MAX11647/INA199A2/AAT1217
Default Address 0x36


Overview

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 Highlights

  • 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

Applications

  • Power Usage Monitoring
  • Remote Sensing
  • IoT Applications

Specifications

AAT1217

  • 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

INA199A2

  • 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

MAX11647

  • 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

External Links

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