STMicroelectronics Launches New Synchronous Rectifier Tailored for Industrial Power Supply Applications
STMicroelectronics introduces the SRK1004, a highly versatile synchronous-rectifier controller designed to simplify the design and enhance the efficiency of power converters across various applications.
The SRK1004 synchronous rectifier controller from STMicroelectronics simplifies and improves the performance of converters using silicon or GaN transistors. This helps in applications such as industrial power units, mobile device chargers, and AC/DC converters.
The device operates with a sense input up to 190 V and supports both high-side and low-side configurations. It comes in four different versions, making it simple for designers to enhance their systems by choosing the appropriate variant as per their requirements for gate-drive voltage, ranging from 5.5V to 9V. This selection supports logic-level MOSFETs, standard MOSFETs, or GaN transistors, with compatibility for active clamp, resonant, and quasi-resonant (QR) flyback converter topologies. The SRK1004 incorporates an advanced turn-off technique that streamlines the operation and minimizes power waste.
This controller allows for the maintenance of high output power in a more condensed form factor, with a potential operating frequency of up to 500 kHz. This frequency capability facilitates the incorporation of smaller magnetic components and enables the full exploitation of GaN transistors. Produced using STMicroelectronics' silicon-on-insulator (SOI) technology, the SRK1004 delivers reliable performance and comes in a compact 2 mm x 2 mm DFN-6L package.
With its ability to function between 4 V and 36 V supply voltages, the SRK1004 is adaptable across various industrial bus voltages. It offers a wide input-voltage range to facilitate efficiency optimization through adjusting the step-down ratio. Moreover, the integrated rapid short-circuit detection contributes to the development of sturdy and dependable devices.
Within the newly presented line-up, the SRK1004A and SRK1004B models are designed for a gate-drive voltage of 5.5 V, suitable for logic-level MOSFETs or GaN transistors, while the SRK1004C and SRK1004D options cater to the standard 9V gate-drive voltage and are ideal for traditional MOSFETs.
BonChip Electronics, a trusted distributor of the entire STMicroelectronics product line, offers the SRK1004 alongside a comprehensive portfolio of power management solutions and exceptional technical support. Contact us today to explore how this innovative controller can empower your next project.
Unveiling Efficiency and Flexibility in Power Conversion:
The SRK1004 offers a unique combination of features for exceptional power converter design:
- Wide Application Range:
- Suitable for industrial power supplies, portable device chargers, and AC/DC adapters.
- Compatible with silicon or GaN transistors.
- Simplified Design:
- Four variants: Eliminate complex calculations through device selection for logic-level MOSFETs, standard MOSFETs, or GaN transistors.
- High-side or low-side configuration: Provides design flexibility.
- Enhanced Efficiency:
- Next-generation turn-off algorithm: Simplifies operation and reduces energy consumption.
- High operating frequency (up to 500 kHz): Enables the use of compact magnetic components and maximizes the benefits of GaN transistors.
- Compact Design:
- Tiny 2 mm x 2 mm DFN-6L package: Saves valuable board space.
- Robustness and Reliability:
- Silicon-on-insulator (SOI) process: Ensures superior performance.
- Wide input voltage range (4 V to 36 V): Powers from various sources and optimizes efficiency.
- Fast-acting short-circuit detection: Protects equipment.
Variant Options:
- SRK1004ATR & SRK1004BTR: 5.5 V gate-drive voltage for logic-level MOSFETs or GaN transistors.
- SRK1004CTR & SRK1004DTR: 9V gate-drive voltage for standard MOSFETs.
The SRK1004 empowers engineers to design efficient, compact, and reliable power converters. Contact BonChip Electronics today to learn more!
