Ricoh Electronic Devices Company R1700V Series PFC/LED Driver Controllers
Ricoh R1700V Power Factor Correction (PFC)/LED Driver Controllers are zero-voltage switching devices with a variable output voltage. These LED drivers controllers are ideal for improving power factors of LED lightings and consumer appliances. The R1700V LED driver controllers feature the arbitrary setting of output voltage based on buck-boost (inverting) topology. These LED driver controllers operate at an input voltage range from 8V to 650V. Typical applications include LED lighting PFCs, flicker-free LED lighting, low output voltage PFCs, and DC/DC converters.
Features
Edge resonant control of Zero Voltage Switching (ZVS) helps to achieve low switching loss and low EMIArbitrary setting of an output voltage based on buck-boost (inverting) topologyProtections:Overcurrent protectionThermal shutdownBST/VCC Pin under-voltage lockoutVCC pin overvoltage lockoutOvervoltage protectionLatch-type protection (selectable)SSOP-16 package
Specifications
8V to 650V input voltage range5% to 100% PWM linear dimming control rangeBuilt-in 650V (maximum) operating regulatorBuilt-in half-bridge gate driverCorresponding topologies:
Buck-boost (inverting) PFCVariable output current (linear dimmable) PFCVariable output voltage PFCBoost PFCBuck PFC
Buck-boost (inverting) PFCVariable output current (linear dimmable) PFCVariable output voltage PFCBoost PFCBuck PFC
Applications
Linear dimmable LED lighting PFCsFlicker-free LED Lighting using R1580NPFCs for PAM controlled motor driversLow output voltage PFCsDC/DC converters
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