The Hypower Microelectronics HP4059D6-435 is a PMIC (Power Management Integrated Circuit) integrated battery management solution in a compact TDFN 1x1-6L RoHS package. It is designed to efficiently manage battery charging in battery-powered applications such as energy harvesting, mobile and portable products, wearable healthcare devices and others. It features a 4.2V Battery Maximum Input Voltage, up to 0.4A Charge Current, Under-Voltage Cutoff, Over-Voltage Cutoff, and 6 LED Outputs. This part also features an active voltage regulation circuit with programmable OVP and UVLO levels, under-voltage lockout, over-voltage protection, a low quiescent current, and a low self-discharge. It also provides protection against a wide range of safety-critical factors such as reverse current and short-circuiting. It is RoHS-compliant and comes in a small 6L TDFN package for easy integration into a wide variety of applications.