FODM611 Datasheet, PDF (1/12 Pages) Fairchild Semiconductor – High Noise Immunity, 5V, 10Mbit/sec Logic Gate Output (Open Collector) Optocoupler

December 2009
FODM611
High Noise Immunity, 5V, 10Mbit/sec Logic Gate Output
(Open Collector) Optocoupler
Features
■ High Noise Immunity characterized by common mode
transient immunity (CMTi)
– 20kV/µs Minimum CMTi
■ High Speed
– 10Mbit/sec Date Rate (NRZ)
– 100ns max. Propagation Delay
– 35ns max. Pulse Width Distortion
– 40ns max. Propagation Delay Skew
■ -40 to +85°C temperature range
■ Safety and regulatory approvals
– UL1577, 3750 VAC_RMS for 1 min.
– IEC60747-5-2 (pending approval)
Applications
■ Microprocessor system interface
– SPI, I²C
■ Industrial fieldbus communications
– DeviceNet, CAN, RS485
■ Programmable logic control
■ Isolated data acquisition system
■ Voltage level translator
■ Isolating MOSFET/IGBT gate drivers
Description
The FODM611 is a 5V high-speed logic gate output
(open collector) optocoupler, which supports isolated
communications allowing digital signals to communicate
between systems without conducting ground loops or
hazardous voltages. It utilizes Fairchild’s patented
coplanar packaging technology, Optoplanar^®, and
optimized IC design to achieve high noise immunity,
characterized by high common mode transient immunity
specifications.
This optocoupler consists of an AlGaAS LED at the
input, optically coupled to a high speed integrated photo-
detector logic gate. The output of the detector IC is an
open collector schottky-clamped transistor. The coupled
parameters are guaranteed over the wide temperature
range of -40°C to +85°C. A maximum input signal of
5mA will provide a minimum output sink current of 13mA
(fan out of 8).
Related Resources
■ www.fairchildsemi.com/products/opto/
■ www.fairchildsemi.com/pf/FO/FODM8061.html
■ www.fairchildsemi.com/pf/FO/FODM8071.html
Functional Schematic
ANODE 1
6 V_CC
5 V_O
CATHODE 3
4 GND
©2009 Fairchild Semiconductor Corporation
FODM611 Rev. 1.0.1
Truth Table
LED
Off
On
Output
High
Low
www.fairchildsemi.com