Avago Unveils Compact Fiber Optic Transmitter/Receiver
Avago Technologies is marketing the 10 MBd HFBR-3810Z Fiber Optic (FO) short link transmitter/receiver for isolating frequency inverter and power converter applications common in renewable energy installations.
In power generating wind and solar farms, fiber optics technology is widely considered the preferred isolation technology to interface between low voltage control logic or microprocessors and high voltage power inverters and switching circuits.
The FO short link technology pin-to-pin distance of 24.96 mm provides transient voltage suppression of 12 kV according IEC 60664-1. Avago’s FO short link technology allows galvanic isolation on one PCB where previously separate transmitter/receiver pairs on two PCBs were linked by plastic optical fiber for isolation. The HFBR-3810Z allows much more compact designs.
FO short link devices have creepage and clearance specifications greater than existing optocoupler devices and offer superior galvanic isolation than transformer-based technology.
Fiber technology has excellent EMI resistance and EMC characteristics. The Avago HFBR-3810Z short link transmitter/receiver operates reliably in high noise environments common in high voltage switching and motor control equipment and systems. The DC coupled data link does not require data encoding or digitizing circuitry. The FO receiver has a CMOS/TTL output for easy interface design.
HFBR-3810Z key features include
* Proven 650 nm fiber optics technology
* Transient voltage suppression of up to 12 kV according IEC 60664-1
o 24.96 mm pin-to-pin distance
* High speed: DC to 10MBaud
* DC coupled receiver with CMOS/TTL output for easy designs
o No data encoding or digitizing circuitry required
* Compact assembly: 13 mm x 33.56 mm footprint
o 4.36 cm2 PCB footprint
o Single PCB isolation
* Excellent EMI immunity and EMC characteristics
* Metal shield version available: HFBR-3810MSZ
* Extended temperature range: -40° C to +85° C
* RoHS compliant
In addition to the HFBR-3810Z, Avago Technologies offers a wide range of fiber optic transmitters, receivers, and transceivers, and IGBT/Power MOSFET gate drivers, and optocoupler isolation products for wind turbine, wind farm and solar electric power generation applications.
The HFBR-3810Z is priced at $8.60 each in 20 piece quantities.
The HFBR-3810MSZ, which has a metal shield for higher EMI and ESD immunity, is priced at $9.82 each in 20 piece quantities.
Samples and production quantities are available now through Avago’s direct sales channel and worldwide distribution partners.
