Hello everyone!
In my project I want to drive two G2RL-1-H DC5 relays (datasheet) (Coil rating is 5V@50mA).
In order to save board space I want the most integrated solution, so I found the MDC3105DMT1G dual relay driver (datasheet).
In terms of voltage and current there is no problem whatsoever, the voltages of the coil and the driver match, and the max current sink of the driver is significantly higher than the coil current.
The thing is that the driver's datasheet states another limit:
"Repetitive Pulse Zener Energy Limit"
I am not an EE, just an hobbyist, so for me this specification is cryptic. what does it mean? Right now I understand it refers to the zener's ability to handle the EMF induced in the coil when the transistor turns off, but I have no idea how to determine if it matches the relay I want to drive or not.
The application notes ("Designing with this Data Sheet") is very confusing as well.
Thanks in advance.
In my project I want to drive two G2RL-1-H DC5 relays (datasheet) (Coil rating is 5V@50mA).
In order to save board space I want the most integrated solution, so I found the MDC3105DMT1G dual relay driver (datasheet).
In terms of voltage and current there is no problem whatsoever, the voltages of the coil and the driver match, and the max current sink of the driver is significantly higher than the coil current.
The thing is that the driver's datasheet states another limit:
"Repetitive Pulse Zener Energy Limit"
I am not an EE, just an hobbyist, so for me this specification is cryptic. what does it mean? Right now I understand it refers to the zener's ability to handle the EMF induced in the coil when the transistor turns off, but I have no idea how to determine if it matches the relay I want to drive or not.
The application notes ("Designing with this Data Sheet") is very confusing as well.
Thanks in advance.