Reference Design Library > Energy Harvesting > Solar Battery Chargers > BQ24210EVM-678: Solar Charger, 1 Cell, Li-Ion 800mA

BQ24210EVM-678: Solar Charger, 1 Cell, Li-Ion 800mA

Summary

The bq24210/2 series of devices are highly integrated Li-ion linear chargers devices targeted at space-limited portable applications. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters. The input voltage regulation loop with programmable input voltage regulation threshold make it suitable for charging from alternative power sources, such as solar panel or inductive charging pad.

The integrated circuit (IC) has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10-hour safety timer. The bq24210 has an EN pin whereas the bq24212 has a MODE pin. See the data sheet for an explanation of the differences between the two pins.

The battery is charged in three phases: conditioning, constant current' and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded.

For additional details, see the bq24210 or bq24212 data sheet.

Specifications

Manufacturer Texas Instruments
Category Energy Harvesting
Sub-Category Solar Battery Chargers
Eval Board Part Number 296-28321-ND
Eval Board Supplier Texas Instruments
Eval Board Normally In Stock
Application / Target Market Audio: MP3 Players
Cell Phones
Portable Devices
Voltage In 4.5 ~ 7.3 V
Cell Type Lithium Ion, Li-Ion
Voltage Out 4.2 V
Current Out 800 mA
Features Auto Off
Cell Preconditioning
Cell Temperature Monitoring
Current Limit (Adj. or Fixed)
Over Voltage Protection
Shutdown, Enable, Standby
Status Indication
Temperature Compensation
Thermal Protection
Component Count + Extras 15 + 11
Design Author Texas Instruments
Main I.C. Base Part BQ24210
Input Power
Current In 800 mA
Battery Capacity
Date Created By Author 2010-12
Date Added To Library 2012-06

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Support Documents & Media

BQ24210EVM-678 - User Guide BQ24210 - Datasheet Ultra Librarian Software:CAD Symbols and Footprints (Zip File) TI's CAD/CAE Symbols and Footprint Search

Media

BQ24210EVM_678_Schematic_Full.png BQ24210EVM_678_Board_Full.jpg