Shenzhen Mingjiada Electronics Co., Ltd. offers a long-term supply of genuine, in-stock STEVAL-LLL009V1 evaluation boards. We also purchase this model of development board and various STMicroelectronics evaluation tools at competitive prices worldwide, providing customers with a one-stop “supply + buyback” solution for electronic components.
STEVAL-LLL009V1 Product Overview
The STEVAL-LLL009V1 is a 300W high-AC-input digital power supply evaluation board launched by STMicroelectronics. It employs a critical-mode PFC + half-bridge LCC resonant + full-bridge synchronous rectification architecture, with full digital closed-loop control implemented by the STM32F334R8 microcontroller. It supports an ultra-wide high-voltage AC input range of 270–480 V and allows flexible switching between constant-voltage (CV) and constant-current (CC) dual-mode outputs. Featuring >93.5% peak efficiency, high power factor, low THD, and comprehensive protection mechanisms, it is specifically designed for solution validation and prototype development in applications such as industrial lighting, communication power supplies, and industrial equipment power supply systems.
STEVAL-LLL009V1 Features
System architecture based on switch-mode boost PFC, half-bridge LCC, and synchronous rectification (full-bridge)
Input voltage range: 270V to 480V AC
Output configurable for Constant Current (CC) or Constant Voltage (CV) mode:
Maximum O/P rated power: 300W
48.5V ± 1% CV mode
6.25A ± 2.5%, with a voltage drop range of 36V to 48V in CC mode
Peak efficiency: >93.5%
Power factor: >0.9 (load > 33% of the maximum load within the input voltage range)
THD < 20% (load > 25% of the maximum load within the input voltage range)
Dimming control in CC mode:
Control: 0V to 10V
Resolution: 1%
Analog dimming
Soft start
Input and output under-voltage and over-voltage protection, output open-circuit/no-load protection, output short-circuit/overload protection
Digitally controlled by STM32F334R8
Compliant with RoHS Directive
Compliant with WEEE Standard (2012/19/EU RAEE II)
STEVAL-LLL009V1 Block Diagram
STEVAL-LLL009V1 Mingjiada Electronics Service Advantages
1. Supply Services
Guaranteed Genuine Products: Sourced through official channels, brand-new and unopened, with quality assurance
Fast Shipping from Stock: Maintains regular inventory; same-day shipping for small batches; supports sample and bulk purchases
2. Recycling Services
High-Priced Recycling: We offer high prices for brand-new STEVAL-LLL009V1 evaluation boards,配套 components, and idle materials
Fast Settlement: On-site or mail-in evaluation; immediate payment upon passing inspection; efficient process
Service Commitment
Mingjiada Electronics has been deeply involved in the electronic component supply chain for over a decade, specializing in the supply of genuine, authentic products and high-value buybacks, covering fields such as power management, industrial control, and communications. Guided by the principles of integrity, efficiency, and professionalism, we provide customers with one-stop solutions ranging from R&D procurement to inventory management, ensuring quality, on-time delivery, and maximized value.
Your message must be between 20-3,000 characters!
English
