WP3880 Datasheet | WAYON

Description The WP3880 provides plete Li+ charger protection against Input over-voltage, input over-current and thermal shutdown protection is also available. When any of the monitored parameters is over the threshold, the IC turns off the charging current. All protections also have deglitch time against false triggering due to voltage spikes or current transients. The system is positive overvoltage protected up to +30V. Thanks to a very low current consumption, the USB charge is patible with this integrated ponent. The WP3880 provides plete Li+ charger protections, and saves the external MOSFET and Schottky diode for the charger of cell phone’s PMIC. This device uses internal PMOS FET, making external devices unnecessary, which reduces the system cost and PCB area of the application board. The above features and small package make the WP3880 an ideal part for cell phones applications. WP3880 is able to instantaneously disconnect the output from the input if the input voltage exceeds the overvoltage threshold. Additional overcurrent protection function allows turning off internal PMOS FET when the charge current exceeds current limit, which is externally selectable. The current limit value can be modified with control logic pin to divide it by internal gain, allowing USB100 m A/500m A charging or USB/Wall adapter charging up to overcurrent threshold. At the same time, Li ion Battery voltage is continuously monitored, providing more safety during the charge. WP3880 provides a negative going flag (FLAG) output, which alerts the system that a fault has occurred as overvoltage (power supply or battery voltage), overcurrent or thermal event. Features  Overvoltage Protection Up to +30V  Fast Turn Off Time  Very Low Current Consumption/USB pliant  Li ion Battery Voltage Monitoring  Overvoltage Lockout (OVLO)  Under-voltage Lockout (UVLO)  Overcurrent Protection Externally Adjustable (OCP) up to 2.8A  Thermal Shutdown  Shutdown EN and Gain Input Pins  Soft- Start...