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MEZS7-SolarCharger
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Monolithic Power Systems
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| This product is available for pre-order only |
Product Description
The MEZS7-SolarCharger is a complete solution module that uses the MP2731 NVDC buck charger with an MCU for maximum power point tracking (MPPT) designs with a photovoltaic (PV) panel.
The MP2731 charger used in the solution fully integrates power switches with built-in robust charging protections including JEITA, a configurable safety timer, voltage- and current-sensing circuitry, ADC, and an I2C interface, which all significantly reduce system cost. The integrated reverse-blocking FET blocks the path from the battery load to the PV panel when the panel is under low irradiance.
The input voltage/current and output voltage/current are sampled through an 8-bit ADC, which can be easily communicated to the external MCU through the I2C interface.
Features & Benefits
- 4.5V to 16V Operating Input Voltage Range
- Up to 22V Sustainable Voltage
- High-Efficiency, 4.5A, 1.35MHz Buck Charger93% Efficiency in a 9V Input 5W System
- 98% MPPT Accuracy
- Fully Integrated Power Switches with Built-In Robust Charging Protection
- Adjustable Minimum Input Voltage Regulation with 100mV Step for Maximum Power Point Tracking
- Dormancy Function, Only VIN-Eligible Open Working Mode
- JEITA for Battery Temperature Protection in Charge Mode
- Battery Charging Safety Timer
- Thermal Regulation and Thermal Shutdown
- Small (25mmx25mm) Core Circuit Area