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LiPo Battery Based Energy Power Shield Development Conversion Board for Arduino JST USB

LiPo Battery Based Energy Power Shield Development Conversion Board for Arduino JST USB

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|Item#: C1876

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Features:
Accept wide range of power inputs.
Overvoltage protection.
85%+ high power conversion efficiency.
Comprehensive LEDs indicators for charging and working status.

Specifications:
Power Output Specifications:
Voltage: 5V
Current: 5-750mA
Power Input Specifications via JST Connector:
Effective Voltage: 5V
Current: 1-800mA
Protection Voltage: 12V
Product size: 6.9 * 5.3cm / 2.7 * 2.1in
Product weight: 24g / 0.85oz
Package size: 10.2 * 6.8 * 2.7cm / 4.0 * 2.7 * 1.1in
Package weight: 41g / 1.46oz

Working Mode Explanation:
Energy shield can draw current from three different ports to charge the battery, including JST connector, USB port @Arduino and DC jack. The voltage ranges vary as below:

When input voltage is under 6.6V, you can switch the working mode of Energy Shield between "Charge" and "ON" via the working mode select switch. In "Charge" condition, Lipo battery doesn't output but only pull current from any existing power source. In "ON" condition, the battery gets charged as well as supplies power to the whole system.
However when input voltage exceeds 6.6V, Energy Shield is forced to enter the "Charge" mode regardless of the switch status.

Interface:


Hardware Config:
U1: ISL97516 IC, boost chip;
U3: CN3065 IC, charge management chip;
U4, U8: LM293D IC, dual differential comparators;
Charge Indicator: it lights in charging status;
Capacity Indicator: indicate the remaining life of battery;
SW2 Button: check the capacity of battery;
Pins Used on Arduino:
Vin pin: convey power from DC jack to charge battery;
5V pin: convey power from USB port to charge battery;
Other Interfaces:
JST socket：provided for external power sources that requires JST connector, like solar panel;
Battery socket: used to hook up LiPo battery;
USB port: output 5V for other devices.



 

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