LLC Resonant Converter

Key Features

• Input AC voltage: 90 V to 264 V
• Input AC frequency: 45 Hz to 65 Hz
• Nominal power: 500 W
• Output voltage: 12 V
• Semi-Bridgeless PFC stage
• DC-DC stage: resonant LLC with synchronous rectification
• Peak efficiency: 94%
• PFC switching frequency: 60 kHz
• DC-DC switching frequency: 80 kHz to 115 kHz (burst mode above)
• HF transformer isolation voltage: 4 kV
• Cooling: natural convection up to 300 W, forced cooling above 300 W
• PFC control: managed by STM32F051K8
• LLC control: managed by STM32F334C8
• Input short-circuit protection
• Input under/overvoltage protection
• Input under/overfrequency protection
• DC Bus under/overvoltage protection
• Output short-circuit protection
• Output under/overvoltage protection
• Overtemperature protection
• RoHS compliant

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Key Features

• Universal input mains voltage range: from 90 V ac to 264 V ac- frequency from 45 to 65 Hz
• Output voltage: 19 V, 4.75 A continuous operation
• Average efficiency: > 90%, according to European CoC ver. 5 Tier 2 for external power supplies
• Efficiency > 60% with Pout = 250 mW, according to EuP lot 6 Tier 2 for household and office equipment
• No load mains consumption: < 90 mW at 230 V ac, according to European CoC ver. 5 Tier 2 for external power supplies
• Mains harmonics: meets EN61000-3-2 Class-D and JEITA-MITI Class-D
• EMI: according to EN55022 Class-B
• Safety: meets EN60950 standards
• RoHS compliant

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Key Features

• Universal input mains voltage range: from 90 Vac to 264 Vac
  • frequency from 45 to 65 Hz
• Output voltage: 12 V at 17.5 A continuous operation
• Overall efficiency at full load: above 90%, well above ENERGY STAR^® 6.1 limit
• Average efficiency: > 90%, according to European CoC ver. 5 Tier 2 for external power supplies
• Efficiency at 250 mW > 60%, well above EuP lot 6 Tier 2 limit for household and office equipment
• No load mains consumption: < 90 mW, well below European CoC ver. 5 Tier 2 limit for external power supplies
• Mains harmonics: meets EN61000-3-2 Class-D and JEITA-MITI Class-D
• EMI: according to EN55022 Class-B
• Safety: meets EN60950 standards
• RoHS compliant

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Key Features

• Synchronous rectifier for LLC resonant converter with adaptive turn-on and turn-off
• Max. frequency: 500 kHz
• Dual gate drive for N-channel MOSFETs
• External high voltage sensing MOSFETs and TO220 SR MOSFETs (6.85 mΩ 150 V rated) for application with output voltages up to 48 V

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Key Features

• Digital controller: STNRG011
• TM PFC with resonant HB-LLC converter
• Input voltage range: 90 ÷ 264 V ac
• 12 V ± 5% CV output regulation
• Full-load power: 150 W continuous operation
• Peak power loading: 200 W
• Full-load and average efficiency: greater than 90% at 115/230 V ac
• Peak efficiency: greater than 93%
• No-load mains consumption: less than 75 mW
• Hold-up time: greater than 10 ms
• Full set of programmable parameters
• High flexibility thanks to the configurable NVM
• Black box functionality with the installed EEPROM

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Key Features

• Power ratings:
  • input DC voltage: 375 V to 425 V
  • output voltage: 48 V
  • maximum output current: 62.5 A
  • output power: 3 kW
  • peak efficiency: 95.3%
  • HF transformer isolation voltage: 4 kV
• Resonant and switching frequencies:
  • max DC-DC switching frequency: 380 kHz (at startup)
  • closed loop switching frequency: 120 kHz to 250 kHz
  • resonant frequency: 175 kHz
• Protection mechanisms:
  • undervoltage and overvoltage protection on input and output
  • overtemperature protection
  • short-circuit protection
  • forced cooling with air flow speed modulation according to the output power and temperature
• Efficiency:
  • adaptive synchronous rectification
  • light load burst mode
• Digital control with STM32F334 microcontroller

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Key Features

• Digital controller: STNRG388A
• Enhanced constant ON Time PFC
• Timeshift controlled LLC
• Max. power: 170 W
• Efficiency: more than 91% at full load
• Standby consumption: <150 mW with 50 mW secondary side load
• Input voltage range: from 90 to 264 Vdc
• Multiple output rails: 24 V (6 A), 12 V (2 A), 5 V (2 A)
• Modular power and control board

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Key Features

• Universal input mains range: from 90 to 264 Vac; 45 to 66 Hz
• 12 V - 150 W continuous output power
• Light load: according to EuP Lot 6 Tier 2
• Average efficiency > 91% in accordance with ENERGY STAR^® 6.1
• No load consumption < 0.15 W at 230 Vac, in accordance with European CoC ver. 5 Tier 2
• EMI: in accordance with EN55022 Class-B
• Safety: in accordance with EN60950
• PCB: double side, 70 µm, FR-4, mixed PTH/SMT
• Board size: 65 x 154 mm, 28 mm height
• RoHS compliant

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Key Features

• Synchronous rectifier for LLC resonant converter, with adaptive turn-on and turn-off
• V_CC range: 4.5 V to 32 V
• Max frequency: 500 kHz
• Dual gate drive for N-channel MOSFETs (strd level driver)
• SR MOSFET type: STP120N4F6 (40 V – 4.3 mΩ) TO-220
• RoHS compliant

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Key Features

• Input mains range: 190 to 264 VAC - frequency 50 Hz
• Output voltage: 24 V 5%
• No-load consumption: < 0.6 W
• Efficiency @ 230 VAC > 92%
• EMI: within EN55022 Class-B limits conducted pre-compliance
• Safety: meets EN60950-1
• Dimensions: 90 x 90 mm, 50 mm component maximum height
• Safe startup procedure to avoid hard switching
• Hard switching prevention in overload condition and low load condition
• Burst mode in low load condition with smooth restart to prevent audible noise
• Evaluation board can deliver more than 300 W peak power for a limited time by a thermal protection NTC positioned near output diodes
• Continuous power at 30 °C ambient temperature:170 W
• The power MOSFETs and diodes are both in D²PAK packages
• RoHS compliant

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Key Features

• Universal input mains range: from 90 to 264 Vac - frequency from 45 to 65 Hz
• Output voltage: 19 V at 4.75 A continuous operation
• Mains harmonics: meets EN61000-3-2 Class-D and JEITA-MITI Class-D
• No load mains consumption: in accordance with ENERGY STAR 2.0 for external power supplies
• Average efficiency: in accordance with ENERGY STAR 2.0 for external power supplies
• Light load efficiency: in accordance with ErP Lot 6 Tier2 requirements
• EMI: within EN55022-Class-B limits
• Safety: meets EN60950 standards
• Dimensions: 65 x 151 mm, 25 mm maximum component height
• PCB: double-side, 70 µm, FR-4, mixed PTH/SMT
• RoHS compliant

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Key Features

• Universal input mains range: 90 - 264 VAC - frequency 45 - 65 Hz
• Output voltage: 19 V at 4.75 A continuous operation
• Mains harmonics: ACC. to EN61000-3-2 Class-D or JEITA-MITI Class-D
• Standby mains consumption: < 0.3 W at 230 VAC
• Efficiency at nominal load: Better than 90% at full load
• EMI: In accordance with EN55022-Class-B
• Safety: In accordance with EN60950
• Dimensions: 65 x 151 mm, 25 mm component maximum height
• PCB: double side, 70 µm, FR-4, mixed PTH/SMT
• RoHS compliant

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