Analog Devices Inc. DC2973A Demonstration Board

Analog Devices Inc. DC2973A Demonstration Board is an evaluation platform for the LTC3337 Primary Battery State of Health (SOH) Monitor. The LTC3337 features an integrated infinite dynamic range coulomb counter and a configurable peak current limit. The LTC3337 supports input voltages from 1.8V to 5.5V and a peak current up to 100mA with a quiescent current of 100nA. The device measures coulomb count, voltage, temperature, and Battery Series Resistance (BSR) to quantify the charge state and health of a battery.

The Analog Devices Inc. DC2973A demonstrates a simple layout for the highest-power configuration of the LTC3337. The circuit can be reduced for lower I_PEAK levels. The Demonstration Board can be connected directly to a PC using a micro USB cable to run a GUI and configure a simple Battery State of Charge (SOC) monitor. Source code for the GUI is available and can be used as a starting point for LTC3337 firmware development.

Features

Pre-installed TC3337 Primary Battery SOH Monitor in an LFCSP-12 package
LTM2884 μModule® Transceiver
Microchip Technology SAMD21 Arm® Cortex®-M0+ Microcontroller

Micro USB port
Test posts for all key signals
1.8V to 5.5V input voltage range
100mA output current

Software

The QuikEval software provides a GUI that enables users to configure the target device and view its status. The GUI is divided into a Dashboard tab, an Engineering tab, and a Schematic tab. The Dashboard tab shows a graphical representation of the LTC3337’s core functionality. The Engineering tab shows all registers and is intended to be used for lower-level development and debugging purposes. The Schematic tab displays the schematic for reference.