V I S H AY I N T E R T E C H N O L O G Y, I N C . OPTOELECTRONICS OPTOCOUPLER Optical Isolation for Solar Power Applications FEATURES • • • • • • Wide operating voltages available High operating temperature Broad range of surface-mount and through-hole package types Single and dual-channel products Low on-resistance High isolation and high creepage distances RESOURCES • • • • • Optocoupler product portfolio: http://www.vishay.com/optocouplers/ Optical isolation solar power video: http://www.vishay.com/videos/optoelectronics/solar-power Complete optoelectronics product portfolio: http://www.vishay.com/optoelectronics/ Technical support: [email protected] Sales contacts: http://www.vishay.com/doc?99914 A WORLD OF SOLUTIONS Product Overview 1/5 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 VMN-PL0458-1505 www.vishay.com V I S H AY I N T E R T E C H N O L O G Y, I N C . OPTOELECTRONICS OPTOCOUPLER Isolated DC/AC Inverters Charge Control Battery – Optocoupler Phototransistor DC/DC Converter RS-232 RS-485 Phototransistor High Speed DC/AC Inverter IGBT Drivers CANbus µC RF Solid-State Relay Meter Relay CAT IV Isolation Grid IGBT Drivers Optically isolated IGBT drivers are used to isolate the high-voltage stage of an DC/AC inverter from the low-voltage control circuitry. Isolation is required for safety purposes because string inverters are inverting a high-voltage DC output from the solar panels to a high-voltage output that will be fed to the utility grid. This high voltage must be isolated from the user accessible low-voltage circuitry. Optically isolated IGBT drivers also allow the designers to separate low-noise control circuitry from noisy high-voltage and high-current circuitry, which improves performance, shrinks product size, and simplifies the design process. Features • Widest operating voltage from 15 V to 32 V • High operating temperature up to 110 ºC • Low input supply current of 2.5 mA or less • Leading isolation voltage of 5300 VRMS • Under-voltage lockout with hysteresis Product Overview Part Number Output Current IO (A) VO3120 2.5 VO3150A 0.5 VOW3120 2.5 VOL3120 2.5 Operating Pulse Width Voltage Distortion Range VCC PWD max. (V) (%) 15 to 32 0.2 Supply Current ICCn (mA) 2.5 Common Mode Rejection CMR min. (kV/µs) VIORM (VRMS) 890 25 5300 48 1050 2/5 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 External Creepage Distance (mm) >7 10 8 VMN-PL0458-1505 www.vishay.com V I S H AY I N T E R T E C H N O L O G Y, I N C . OPTOELECTRONICS OPTOCOUPLER Isolated Communication Ports Charge Control Battery – Optocoupler Phototransistor DC/DC Converter RS-232 RS-485 Phototransistor High Speed DC/AC Inverter µC IGBT Drivers CANbus RF Solid-State Relay Meter Relay CAT IV Isolation Grid High-Speed Analog and Digital Optocouplers I/O communications ports in string inverters require isolation for safety and for minimizing the RF noise that can be created when noise coupling turns communication cables into a highly efficient antenna for RF emissions. Use of optical isolation can quickly and easily eliminate extremely expensive EMI/RFI complications and reduce design risk. In other words, a pinch of optocouplers can be worth a pound of ferrite beads and copper shielding! Features • • • • • • • RS-232/RS-485 Broad range of surface-mount package types Single and dual channel Data rate of 1 MBd, 5 MBd, and 10 MBd Test isolation voltage up to 5300 VRMS High common mode transient immunity Very high working voltage up to 1414 V Very high transient isolation voltage up to 8000 V Product Overview CANbus µC High Speed RF 4 to 20 mA Loop Part Number Data Rate Package Key Features VOM452T VOM453T 1 MBd SOP-5 SFH6325 1 MBd DIP-8, SMD-8 VOW135 VOW136 1 MBd Widebody, DIP-8, SMD-8 SFH6721T 5 MBd SOIC-8 CMR of 2.5 kV/μs VO0661T 10 MBd SOIC-8 Dual channel CMR of 25 kV/µs VOW137 VOW2611 10 MBd Widebody, DIP-8, SMD-8 3.7 kV isolation Small package footprint 5.3 kV isolation ≥ 7 mm creepage clearance distance Creepage > 10 mm CMR of 1000 V/ µs Creepage > 10 mm CMR of 40.000 V/ µs (typ) 3/5 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 VMN-PL0458-1505 www.vishay.com V I S H AY I N T E R T E C H N O L O G Y, I N C . OPTOELECTRONICS OPTOCOUPLER Isolated Relays and Alarms Charge Control Battery – Optocoupler Phototransistor DC/DC Converter RS-232 RS-485 Phototransistor High Speed DC/AC Inverter IGBT Drivers CANbus µC RF Solid-State Relay Meter Relay CAT IV Isolation Grid Solid-State Relays and MOSFET Drivers It is common to include relay contact outputs for actuation of external devices, such as audible alarms in case of power outages and fans for auxiliary cooling. While mechanical relays can be used in these applications, it is more reliable to use optically isolated solid-state relays. In addition to Vishay’s broad selection of SSRs, customers also have the option of using MOSFET drivers to build a custom relay using discrete standard MOSFETs. Features • Single and dual channel options • Packages include DIP, SMD, and SOP • Low RON • High open circuit voltage • High short circuit current Single channel SSR: VO1464AT • Isolation test voltage up to 5300 VRMS MOSFET Driver: LH1262, VO1263 Part Number Function Package Output RON Typical (Ω) ton / toff1 (µs) I/O Isolation (VRMS) VO14642AT SSR Low RON SMD-6 DIP-6 1 Form A 0.18 370.50 5300 VO1400AEFTR SSR Multi-purpose SOP-4 1 Form A 2.3 52.36 1500 Package Open Circuit Voltage Typ. (V) Short Circuit Current Typ. (µA) ton / toff1 IF = 20 mA (µs) I/O Isolation (VRMS) SMD-8 DIP-8 13.3 10.8 35.90 5300 14.3 30 26.73 5300 SOP-4 8.7 30 53/24 4500 Part Number Function LH1262 VO1262 VOM1271T Product Overview MOSFET Driver 4/5 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 VMN-PL0458-1505 www.vishay.com V I S H AY I N T E R T E C H N O L O G Y, I N C . OPTOELECTRONICS OPTOCOUPLER CAT IV Isolation Charge Control Battery IEC/EN 61010-1 Overvoltage Protection Category – Optocoupler Phototransistor DC/DC Converter DC/AC Inverter CAT II 600 V RS-232 RS-485 Phototransistor High Speed IGBT Drivers CAT III 600 V RF 6000 V CAT IV 300 V Solid-State Relay Meter 4000 V CAT III 300 V CANbus µC Transient Test Voltage Relay CAT III 1000 V CAT IV Isolation 8000 V CAT IV 600 V Grid High-Voltage Optocouplers Features Isolation requirements vary depending on the device’s installation category. As shown in the diagram, Category IV devices are connected to utility power. To protect low-voltage electronics from high-voltage power, ordinary optocouplers may not be sufficient. For CAT IV, AC isolation should be at least 8000 V. • AC isolation of 8200 VRMS minimum • Distance through insulation > 3 mm • VDE 0160 and VDE 0884 for electrical power installation • IEC 60065 for mains-operated electronics CNY6XX Ultra High Isolation High Creepage Couplers Features • • • • DTI > 3 mm VIOTM = 12 000 V Phototransistor output SMD or through-hole Creepage CNY64x CNY65x CNY64xST CNY65xST 9.5 mm 14.0 mm CNY66x 17.0 mm Ordering Information Through-Hole Package DIP Surface-Mount (SMD) Current Transfer Ratio % (CTR) 50 to 300 63 to 125 100 to 200 100 to 300 CNY64 CNY64A CNY64B - CNY65 CNY65A CNY65B - CNY66 - CNY66B CNY651AGR VOWXX Widebody, High Isolation and High Creepage Couplers Package HVSMD 50 to 150 80 to 240 100 to 300 CNY64ST CNY64AYST CNY64ABST CNY64AGRST CNY65ST CNY65AYST CNY65ABST CNY65AGRST - CNY651AYST - CNY651AGRST Ordering Information Widebody High Isolation and High Speed Optocouplers Features Part Number • Widebody package with > 10 mm clearance and creepage distance • High working voltage up to 1414 V • High transient voltage 8000 V • Data rate of 1 MBd and 10 MBd • High operating temperature up to 100 ºC • Extreme high common mode transient immunity up to 40 kV/ µs typ Product Overview Current Transfer Ratio % (CTR) 50 to 300 Data Rate Package VOW137 VOW2611 10 MBd Widebody, DIP-8, SMD-8 • Creepage > 10 mm • VIORM = 1414 V • VIORM = 8000 V VOW135 VOW136 1 MBd Widebody, DIP-8, SMD-8 • Creepage > 10 mm • VIORM = 1414 V • VIORM = 8000 V 5/5 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 Key Features VMN-PL0458-1505 www.vishay.com