Optically Isolated Photovoltaic Drivers Series - Optically isolated photovoltaic gate driver IC

External overview image
Roll Over to Zoom
Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

These MOSFET drivers couple infrared light emitting diodes with proprietary photovoltaic integrated circuits. In addition to providing voltage for turn-on of discrete MOSFETs, these ICs feature a gate-clamping circuit to provide fast turn-off. These devices offer a significant reduction in drive circuit complexity, board space, and cost over alternate techniques for isolated switching of MOSFETs. Used in conjunction with discrete MOSFETs, these devices are ideal for use in programmable controls, process control, instrumentation and telecommunications, replacing TRIAC/driver, mechanical relays, and bipolar components.

When input current is applied to the LED, the emitted light will activate the photodiode array and generate a voltage at the output. The optical coupling provides a high level of input-to-output isolation. These gate drivers are well suited for use in discrete solid state relay designs and other isolated switching applications.

Features & Benefits:

  • Low drive current
  • High reliability
  • Provides galvanic input to output isolation

Access specifications, certifications, check availability and order parts below

Catalog #Input Control Current (mA)Open Circuit Voltage (V)Minimum Short Circuit Current (µA)Nominal Short Circuit Current (µA)Switching Speeds ton / toff (ms)Isolation Voltage (VRMS)Package TypePart DatasheetPartner ECAD ModelsStockSamplesCompare
FDA117513.32.59.11 / 0.550004-pin: DIP, SMTPartFDA117CheckOrder
FDA21555.512.55 / 537508-pin: DIP, SMTPartFDA215CheckOrder
FDA2175122.54.52 / 0.537508-pin: DIP, SMTPartFDA217CheckOrder
To request product environmental information, please complete the Product Environmental Information Request Form.