ADWSystems
Member
I have few questions about the implementing the LM3914 Bar/Dot Display driver.
1) If the current required was low enough, could it drive a relay? If so, It appears you would connect the relays to the positive rail and allow the 3914 to pull down to turn on the relay. Yes?
2) Pin 7, Adjustable Current Limit and the maximum output current. I was reading the data sheet and it lists the maximum current as 13mA. But on the first page indicates it is adjustable from 2 to 30mA, and in the power dissapation application hint it indicates running at 20mA. So what is the maximum output current available to sink or source at each output pin?
1) If the current required was low enough, could it drive a relay? If so, It appears you would connect the relays to the positive rail and allow the 3914 to pull down to turn on the relay. Yes?
2) Pin 7, Adjustable Current Limit and the maximum output current. I was reading the data sheet and it lists the maximum current as 13mA. But on the first page indicates it is adjustable from 2 to 30mA, and in the power dissapation application hint it indicates running at 20mA. So what is the maximum output current available to sink or source at each output pin?