MAX846A Li+ charger with charge timer and LED-status outputs, controlled by an 8-pin Microcontroller
In this example, a small external µP enhances the MAX846A, forming a complete desktop-charger system that includes user-interface functions such as the LEDs in Figure (to indicate the charge process and status). The MAX846A is designed for this type of operation. Its auxiliary linear regulator and µP-reset circuit (to support the external µC) reduces the cost of a typical desktop-charger application.