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lun giu 1 2015
Dean Cording fixed by FA
The PowerBoost 500C is a little DC/DC boost converter module that can be powered by any 3.7V LiIon/LiPoly battery, and convert the battery output to 5.2V DC for running your 5V projects. At its heart is a TPS61090 boost converter from TI. This boost converter chip has some really nice extras such as low battery detection, 2A internal switch, synchronous conversion, excellent efficiency, and 700KHz high-frequency operation. A MicroLipo charger circuit, powered from a microUSB jack, will recharge any 3.7V/4.2V LiIon or LiPoly battery at 500mA max rate. You can charge and boost at the same time no problem, without any interruption on the output so its fine for use as a "UPS" (un-interruptable power supply) for a low-current draw device.
PowerBoost 500 Charger
https://www.adafruit.com/products/1944
adafruit
tps61090
boost converter
charger
lipo
breakout
PowerBoost
USB
JST
variant 1
Battery/power ground
LiPo Battery
LiPo Battery
Enable
Battery/power ground
Low Battery Output
Battery/power ground
5.2V boosted output
USB 5V power
Battery/power ground