The ML9077’s key features include low current consumption of less than 80 nA (at 25°C), supplying power at low impedance, an operating voltage range of 0.0 to 3.6 V (solar cell) and 0.0 to 3.2 V (secondary battery), an operating temperature range of -20°C to 70°C, overcharge prevention of 3.1 V ±0.1 V (lithium manganese dioxide battery) and 2.6 V ±0.1 V (cobalt titanium lithium battery), secondary battery charging electric potential difference (battery voltage less solar cell voltage) of 0 V to 0.1 V, solar cell voltage >2.0 V, solar cell current < 1 mA, low voltage detecting voltage/reckless drive prevention voltage of 1.15 V ±0.1 V/1.8 V ± 0.1 V, and secondary battery electric supply potential difference (secondary battery voltage less VDO output voltage) of 0 V to 50 mV.
The ML9078’s key features include an operating voltage range of 0.0 V to 4.0 V (solar cell) and 1.1 V to 3.6 V (primary battery voltage), backflow prevention function of solar battery generation current to the primary battery, solar panel voltage limiting, low output power impedance, and power source comparison between solar panel/primary battery regulator voltage range of 1.65 V ±0.1V/3.3V ± 0.1 V (ML9078-01) and 1.5 V ±0.1 V/3.0 V ±0.1 V (ML9078-02). Both parts are available in volume production. Three versions of the ML9078 are available so that various types of solar panel and microcontrollers can be suited.
LAPIS SEMICONDUCTOR GROUP GMBH, A ROHM SEMICONDUCTOR GMBH COMPANY