ML9077 Datasheet | LAPIS

DESCRIPTION ML9077 controls charging an energy harvester current to a rechargeable battery. The control circuit is consists of a overcharge prevention circuit, a charge control circuit and a rechargeable battery voltage monitor circuit. Each circuit performs following operation. - Overcharge prevention circuit When a rechargeable battery bees FULL charge state, the current of energy harvester is drawn to VSS and the charge current for the rechargeable battery is omitted so that rechargeable battery voltage does not rise any more. - Charge control circuit The voltage of energy harvester (VSC) is always pared to the voltage of rechargeable battery (VBAT) and it will have starting to charge the battery if VSC＞VBAT, and stop to charge if VSC≦BAT. - Rechargeable battery voltage monitor circuit（BOD : Brown-Out Detector） The voltage of rechargeable battery (VBAT) is always supervised, and it controls VBAT low voltage detection signal (VBOD) and rechargeable battery voltage output (VDO). APPLICATION Consumer and Industrial equipment (e.g., Remote Controller, Electronic Shelf Labels, Io T Device, etc) 【NOTE】 This product cannot be applicable for automotive use, automatic train control systems, and railway safety systems. Please contact ROHM sales office in advance if contemplating the integration of this product into applications that requires high reliability, such as transportation equipment for ships and railways, munication equipment for trunk lines, traffic signal equipment, power transmission systems, core systems for financial terminals and various safety control devices. FEATURES - Self control the energy harvester current for charging a rechargeable battery. - Direct charge energy harvester current (ISC) to a rechargeable battery. - [VSC＞2.0V, ISC≦1m A conditions]: Potential difference=Max 0.1V （VSC-VBAT） - [VSC≦2.0V, ISC≦1m A conditions]: Potential difference=Max 2.0V （VSC-VBAT） - 2 Selectable overcharge prevention voltage. - 2 Selectable low voltage detection...