Description: The PowerCell board is a single cell
LiPo boost converter (to 3.3V and 5V) and micro-USB charger in one. The
board comes with a JST connector for a single cell LiPo battery, a
micro-USB connector for the 5V charge input, and selectable 3.3V and 5V
output pins (labeled ‘out’). There are also two charge pins broken out
(labeled ‘charge’), so you can use another 5V power source to charge the
batteries, if you don’t have a micro-USB cable.
Sparkfun have also broken out the power-save and enable pins, so that you
can have full control of the switching regulator. Keep in mind, if you
keep your battery connected to the Powercell, it is recommended that you
disable the switching regulator (pull EN low) in order to prevent the
battery from discharging and reaching the under voltage cutoff on the
battery itself. There is also an under-voltage lockout on the Powercell
board which is tied to a solder jumper so that you can disable it if you
The micro-USB charger uses the MCP73831
and allows you to charge 3.7V LiPo cells at a rate of 100mA max. If you
want to charge at a faster rate, you will need to connect a separate
power supply to the pins labeled ‘5V’ and ‘GND’ under the label
The boost converter is based on the TPS61200 from TI and has solder
jumper selectable 5V and 3.3V output, and an under voltage protection of
2.6V (which can be disabled via solder jumper on the back of the PCB).
Note: This board does not have reverse polarity protection, so please be sure to recognize the polarity of your connections! When you are finished charging your battery,
it is recommended that you remove the battery from the Powercell, since
the charge will slowly drain without proper management.
Dimensions: 1.03 x 0.95"
- MCP73831 Single Cell LiPo charger at 500mA
- TPS61200 Boost Converter
- Selectable output voltage 3.3 or 5V
- 5V @ 600mA max
- 3.3V @ 200mA max
- Undervoltage lock out at 2.6V (with disable jumper)
- Quiescent current, less than 55uA
- JST connector for LiPo battery
- micro-USB connector for charge power source
- Inductor: 4.7uH, 1.2A Sumida CDRH2D18
- Over temperature protection
- 1x Sparkfun Power Cell - Lipo Charger/Booster
There are currently no any reviews about this product.
There are currently no any question about this product.