RECOM Power RVSY018 Synchronous Rectification Controllers
RECOM Power RVSY018 Synchronous Rectification Controllers are high-performance, fast turn-off devices designed to support deep continuous conduction mode (CCM) and discontinuous conduction mode (DCM) operations. The controllers operate at frequencies up to 700kHz, making them ideal for high-speed power conversion applications. Key functional parameters are programmable via external resistors, enabling flexible configuration and optimization tailored to the selected SR MOSFET's characteristics to improve overall system performance. RECOM Power RVSY018 Synchronous Rectification Controllers are compatible with soft-switching topologies such as quasi-resonant (QR) and active clamp flyback (ACF).
Features
- Relative maximum voltage detection ensures effective turn-on performance
- Programmable intelligent voltage-limited conduction to adapt to SR MOSFET
- Supports DCM and CCM operations
- Ultra-fast 10ns turn-off delay and 30ns turn-on delay
- Programmable turn-off threshold
- Programmable blanking time
- Supports a 700kHz maximum operating frequency
- High-power self-powering, no need for auxiliary winding
- Supports high-/low-side synchronous rectification
- Detection pin designed to withstand negative voltage, regardless of negative voltage generated by body diode
- Industrial-grade -40°C to +125°C operating temperature range
- 3.0mm x 2.8mm SOT23-6 package
Applications
- DC-DC power converters
- AC-DC power supplies
- Battery management system power supplies
- Various module power supplies
Specifications
- Operating conditions
- 100V maximum VD to GND voltage
- 4.7V to 10V VDD to GND voltage range
- 6V maximum VSEL/VLC to GND voltage
- VDD
- 4.3V to 5.0V VDD UVLO rising threshold
- 4.0V to 4.6V VDD UVLO falling
- 320µA typical VDD startup current
- 2.0mA to 8.5V maximum operating current range
- 630µA typical quiescent current
- 100mA to 180mA maximum charging current range
- 8.0V to 10.0V regulation voltage range
- VD
- -115mV to -75mV turn-on threshold range
- 50ns maximum turn-on delay
- Turn-on blanking time ranges
- 300ns to 550ns with SEL floating
- 600ns to 1000ns with SEL connected to the GND
- -3.0mV to 1.5mV turn-off threshold range
- 10ns typical turn-off delay
- 450mV to 550mV overvoltage threshold range
- Overvoltage comparator delay ranges
- 120ns to 180ns with SEL floating
- 200ns to 300ns with SEL connected to the GND
- 80µA to 120µA outflow current range
- VLC
- 1.4V to 1.8V VG minimum drive voltage range
- 63V/V to 79V/V proportional coefficient range
- 5.0V to 6.2V zener clamping voltage range
- VSEL
- 2.8V to 4.0V high logic voltage range
- 1.1V to 1.7V low logic voltage range
- Blanking time for prohibiting the enable signal generation
- 200ns to 300ns with SEL floating
- 400ns to 600ns with SEL connected to the GND
- Typical VG
- 0.04V output voltage drop at low level
- 0.2V output voltage drop at high level
- 1A maximum source current
- 4A maximum sink current
- 0.4Ω pull-down impedance
- -40°C to +125°C operating ambient temperature range
- +150°C maximum junction temperature
- Thermal
- 143.0°C/W typical junction-to-ambient thermal resistance
- 17.4°C/W typical junction-to-top characterization parameter
- Moisture Sensitivity Level (MSL) 3
- ESD ratings
- ±1500V human body model (HBM) per ESDA/JEDEC JS-001-2017
- ±1000V charged device model (CDM) per ESDA/JEDEC JS-002-2022
Simplified Schematic
Functional Block Diagram
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