IC 4.2V 1A TP4056 SOP8 refers to a charging IC (Integrated Circuit) designed primarily for charging lithium-ion (Li-ion) or lithium-polymer (LiPo) batteries
· Type: Linear charger IC for single-cell lithium-ion or lithium-polymer batteries
· Package: SOP-8 (Small Outline Package, 8 pins)
· Input Voltage (V_IN): 4.5V to 5.5V (typical 5V)
· Battery Charging Voltage (V_BAT): 4.2V (nominal, with accuracy of ±1%)
· Battery Charging Current: Adjustable up to 1A (typical; set by an external resistor)
· Operating Temperature: -40°C to +85°C
· Charge Voltage (V_CHG): 4.2V ±1%
· Charge Current (I_CHG): Adjustable up to 1A, typically set with a resistor (e.g., 1.2kΩ resistor sets current to approximately 1A)
· Pre-Charge Current: 100mA (used when battery voltage is below a certain threshold)
· Termination Voltage (V_TERM): 4.2V (±1%)