134n3p is a single-chip solution designed for mobile power.It integrates a charge management module, a discharge management module, a power detection and LED indication module, and a protection module. 134N3P has built-in charging and discharging power MOS. The charging current can be set. The maximum charging current and maximum discharging current are 1A. 134N3P integrates constant temperature charging working mode, over temperature protection, over charge and over discharge protection, output over voltage protection, output weight Almost all safety protection functions such as load protection and output short-circuit protection to ensure the safety of the chip and lithium-ion battery. At the same time, the 134N3P application circuit is simple, requiring only a few components to achieve charge management and discharge management. Features: Charging red light flashes. Red light is on for full charge, blue light for discharge flashes. DIY charger with Android-mobile phone charging port and USB output port Built-in charging and discharging power MOS Integrated charge management and discharge management Intelligent temperature control and over-temperature protection Integrated output over-voltage protection, short circuit protection, heavy load protection Integrated overcharge and overdischarge protection Support trickle mode and zero voltage charging Specifications: Input voltage: 3.7V ~ 5.5V Charging current: 1A max Output current: max. 1A Output voltage: 5V BAT discharge termination voltage: 2.9V Preset 4.2V charging voltage with accuracy of 1% Discharge efficiency: 85% (input 3.7V, output 5V / 1A) 8uA standby current Material: Electronic component Size: approx. 20x18mm / 0.79x0.71in Color: As Shown Quantity: 1 Pc