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05-22-2012

Fairchild Semiconductor's New Gate Driver Optocoupler Provides Designers High Insulation Voltage and High Noise Immunity

Fairchild » FOD8320

Device's Wide Body 5-Pin SOP Package Increases Creepage and Clearance Distance, Achieves a Compact Foot Print

High power industrial applications such as solar inverters, uninterruptible power supplies (UPS) and motor drives demand a gate driver optocoupler capable of handling networks greater than 690VAC and constant DC voltages greater than 1000VDC. In order to achieve this, a creepage and clearance distance of 10mm or greater is essential. Similarly, applications such as Harsh Environment Inverters (HEI) also require wider creepage and clearance distances even with a 690VAC network. To help designers meet this challenge, Fairchild Semiconductor developed the FOD8320, an advanced 2.5A Output Current Gate Driver Optocoupler.

Fairchild - FOD8320

Using Fairchild's Optoplanar® packaging technology and optimized IC design, the FOD8320 optocoupler achieves reliable and high insulation voltage as well as high noise immunity. The device, housed in a wide body 5-pin small outline package, offers a compact footprint while allowing for a creepage and greater than 10mm and 0.5mm internal insulation distance. Additionally, the FOD8320 provides an extended industrial temperature range (–40 to +100°C) and is ideally suited for fast switching of power IGBTs and MOSFETs used in industrial inverter applications. Designed with 35kV/µs minimum Common Mode Noise Rejection (CMR) resulting from the proprietary Optoplanar coplanar packaging technology, the FOD8320 eliminates the capacitive charge buildup that occurs in the over-under construction.

Features and Benefits:

  • 10mm minimum creepage and clearance distance
  • P-Channel MOSFETs at output stage enables output voltage swing close to the supply rail
  • Wide supply voltage range from 15V to 30V
  • Fast switching speed over full operating temperature range
    • 400ns max. propagation delay
    • 100ns max. pulse width distortion
  • Under Voltage Lockout (UVLO) with hysteresis
  • Extended industrial temperate range, –40 to 100°C temperature range

Price: US $ in 1,000 quantity pieces FOD8320: $2.85
Availability: Samples available upon request.
Delivery: 8-12 weeks ARO

fairchildsemi.com

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