5V boost board lithium battery charge protection board perfume boost board 134n3p program can be DIY charger with Android phone charging port and USB output port Overview The 134n3p is a single-chip solution designed for mobile power and includes a charge management module, a discharge management module, a power detection and LED indication module, and a protection module. The built-in charging and discharging power MOS 134N3P can be set, . Large charge current and Large discharge current 1A. 134N3P internal integrated thermostat charging mode, over temperature protection, overcharge and over discharge protection, output overvoltage protection, output overload protection, output short circuit protection, and almost all security features To ensure the safety of the chip and lithium-ion battery, while 134N3P application circuit is simple, only a few components can be achieved charge management and discharge management. Features Charging red light will blink The long red light is full Built-in charge and discharge power MOS Input voltage: 3.7V ~ 5.5V 700ma input 700ma output Output voltage: 5V BAT discharge termination voltage: 2.9V Preset 4.2V charge voltage, accuracy of ± 1% Discharge efficiency: 85% (input 3.7V, output 5V / 1A) Large 8uA standby current Integrated charge management and discharge management Intelligent temperature control and over-temperature protection Integrated output overvoltage protection, short circuit protection, heavy load protection Integrated overcharge and over discharge protection Trickle-flow mode and zero-voltage charging are supported
