In electrical systems, error amplifiers feed current back into a control circuit to keep the output voltage as close to the circuit’s design specification as possible. To do its job, an error amplifier must first detect the difference between the actual current and the intended output voltage. A 4-terminal 431-type shunt regulator performs this detection function in the error amplifier produced by Littelfuse. A paired Darlington transistor in our error amplifier handles the task of feeding current back into the control circuit. Common applications of the device include LED lights and dc–dc converters.
Operate at 1.3 V to 12.5 V over circuits’ designed temperatures
350 V breakdown voltages for Darlington transistors
Typical accuracy of 1.299 V ± 1 %
4-pin SOIC packages
Certified lead-free and RoHS compliant
Very low-profile design
Low power dissipation
Low collector current requirements
Highly resistant to moisture (MSL 1)
Error Amplifiers Resources
Integrated Circuits Selection Guide
Find solid state relays, IGBTs, MOSFETs, optocouplers, programmable capacitors, gate drivers, and LED drivers made by IXYS and sold by Littelfuse.