Περιγραφή
BQ 24703The BQ24702/BQ24703 is a highly integrated battery charge controller and selector tailored for notebook and sub-notebook PC applications.The BQ24702/BQ24703 uses dynamic power management (DMP) to minimize bettery charge time by maximizing use of available wall-adapter power. This is achieved by dynamically adjusting the battery charge current based on the total system (adapter) current.The BQ24702/BQ24703 uses a fixed frequency, pulse width modulator (PWM) to accurately control battery charge and voltage. Charge current limits can be programmed from a keyboard controller DAC or by external resistor dividers from the precision 5V, externally bypassed voltage reference (Vref), supplied by the BQ24702/BQ24703.
