Power Optimizer  

In architectures based on the use of power optimizers, the maximum power point tracking (MPPT) function is performed at the level of each photo-voltaic panel so they all operate at their maximum power point. This results in an improved energy yield of the overall solar system compared to traditional string or central inverter based architectures.

Power optimizers can help minimize a system’s design constraints as well as improve reliability and safety – by helping ensure compliance with the latest NEC 2017 regulations that require rapid shut-down in the event of grid disconnection, while at the same time reducing maintenance costs.

We provide high-performance STM32 microcontrollers as well as high-efficiency silicon-carbide, SiC MOSFETs and diodes, trench-gate field-stop IGBTs, galvanically-isolated gate drivers and Power Line communication solutions to help achieve superior efficiency and reliability for the implementation of power optimizer based architectures.

power optimizer block diagram

Technical Documentation

Application Notes
Description Version Size
AN604 AN604: Calculation of conduction losses in a power rectifier 3.2 137.74 KB
AN4021 AN4021: Calculation of reverse losses in a power diode 1.0 120.47 KB
AN4381 AN4381: Current sharing in parallel diodes 1.0 449.12 KB
AN1453 AN1453: NEW FAMILY OF 150V POWER SCHOTTKY 1.1 131.48 KB
AN5046 AN5046: Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT™ packages 3.0 5.33 MB
AN5088 AN5088: Rectifiers thermal management, handling and mounting recommendations 2.0 2.32 MB
AN443 AN443: SERIES OPERATION ON FAST RECTIFIERS 2.1 202.48 KB
AN1542 AN1542: THE THERMAL RUNAWAY LAW IN SCHOTTKY USED IN OR-ING APPLICATION 1.1 57.47 KB
AN869 AN869: Tj max limit of Schottky diodes 2.2 60.9 KB
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Presentations & Training Material

Presentations
Description Version Size
EEPROM 2 Mbit highest density memories 1.0 2.49 MB
ST products and solutions for solar energy 5.1 2.09 MB
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Publications and Collaterals

Flyers
Description Version Size
60, 80 and 100 V STripFET™ F7 MOSFETs 1.0 764.69 KB
Industrial-grade SiC diodes - 650V and low VF - to boost the performance of power converters 2.0 958.23 KB
ST Diodes Finder : the new app for Android and iOS 2.0 1.46 MB
Turnkey PLC chipset for smart-energy infrastructure 10.2017 775.07 KB
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Selection Guides
Description Version Size
EEPROM selection guide 2.0 843.56 KB
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Interfaces and Transceivers

Part Number Description
ST8500 Programmable power-line communication modem system-on-chip
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MEMS and Sensors

Part Number Description
HTS221 Capacitive digital sensor for relative humidity and temperature
IIS2DH 3-axis digital accelerometer, ultra low-power high performance MEMS motion sensor
IIS3DHHC High-resolution, high-stability 3-axis digital accelerometer for industrial applications
LM135 Precision Temperature Sensor
LPS22HB Ultra-compact piezoresistive absolute pressure sensor, 260-1260 hPa, digital output barometer, full-mold, holed LGA package (HLGA)
STLM20 Analog temperature sensor, ultra-low current 2.4 V, high precision
STTS751 2.25 V low-voltage local digital temperature sensor
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Power Management

Part Number Description
ALTAIR04-900 Off-line all-primary-sensing switching regulator
ALTAIR05T-800 Off-line all-primary-sensing switching regulator
L6985F 38 V 500 mA synchronous step-down switching regulator with 30 uA quiescent current
L6986F 38 V 1.5 A synchronous step-down switching regulator with 30 uA quiescent current
L7985 2A step-down switching regulator
L7986 3A step-down switching regulator
L7987 61 V 3 A asynchronous step-down switching regulator with adjustable current limitation
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Power Transistors

Part Number Description
STL110N10F7 N-channel 100 V, 5 mOhm typ., 107 A STripFET F7 Power MOSFET in a PowerFLAT 5x6 package
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Protection Devices

Part Number Description
1.5KE Transil 1500 W
BZW50 5000 W TVS
P6KE 600 W TVS in DO-15
SM15T Transil 1500W
SM6T 600 W TVS in SMB
SMBJ 600 W TVS in SMB
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Support & Community eDesignSuite

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