TC110DM - 

The TC110 Boost Converter Demo Board can charge Li-Ion Batteries with single-cell Alkaline battery or 2-cell Alkaline battery at maximum 500 mA constant current. The TC110 Boost Converter Demo Board is used to evaluate Microchip’s TC110 PFM/PWM Step-Up DC/DC Controller.

The TC110 is a step-up (Boost) switching controller that can regulate output voltage with a typical start-up voltage of 0.9 V. The TC110 Boost Converter Demo Board also includes a MCP73832 Miniature Single-Cell, Fully Integrated Li-Ion, Li-Polymer Charge Management Controllers. Microchip’s MCP73832 is a highly advanced linear charge management controllers for use in space-limited, cost-sensitive applications.

The TC110 Boost Converter Demo Board is a ready to use solution for portable applications when no DC plug is available. The TC110 Boost Converter Demo Board can efficiently transfer energy from Alkaline batteries to Li-Ion battery pack.

Features:

Single-Cell Li-Ion Battery Charger, operates stand alone without firmware added for economic and fast pace design cycle.

Charges 1-cell Li-Ion battery pack from 0.9 V to 3.0 V Input (Battery types from 1-cell to 2-cell Alkaline batteries or similar rating NiCd and NiMH).

Regulates output dc voltage to 5.0 V from TC110 (TC110 is available in 3.0 V, 3.3 V, and 5 V).

300 kHz fixed frequency (TC110 is available in 100 kHz and 300 kHz fixed frequency).

ON/OFF button used to enable and disable system.

3 position toggle switch to select single, dual battery input or disable.

LED ON/OFF to show the charging activity and standby mode.

Easy adjust constant charging current with single resistor modification (The default current is 200 mA to optimize 1-cell Alkaline battery, but can go up to 500 mA for fast charging cycle while running in 2-cell Alkaline battery.

MCP738312 is used to charge Li-Ion battery pack at constant voltage (The MCP73832 is available in 4.20 V, 4.35 V, 4.40 V, or 4.50 V fixed voltage rating to accommodate emerging battery charging requirements).

TC110 Boost Converter Demo Board operates directly from single cell AA battery or DC power source for evaluations.

Ready to use design or simple modification to support various new portable applications.