Darlington array relay driver

 · ULN is a high-voltage and high-current Darlington transistor array and is mainly used as a relay driver with an ability to handle 8 relays at a www.doorway.ru comes with a collector-emitter voltage around 50 V and input voltage residing at 30 V. The seven NPN Darlington connected transistors in these arrays are well suited for driving lamps, relays, or printer hammers in a variety of industrial and consumer applications. Their high breakdown voltage and internal suppression diodes insure freedom from problems associated with inductive loads.  · ULN Relay Driver Working. The ULN IC consists of eight NPN Darlington pair which provides the proper current amplification required by the loads. We all know that the transistors are used to amplify the current but here Darlington transistor pairs are used inside the IC to make the required amplification.1/5(1).

The ULN is a relay driver with a Darlington transistor array that can operate at high voltages and currents. The Darlington pairs are connected in a parallel configuration to increase current capability. The component contains eight NPN Darlington pairs with high-voltage outputs and common-cathode clamp diodes that are directly related to switching inductive loads. ULN is a high-voltage and high-current Darlington transistor array and is mainly used as a relay driver with an ability to handle 8 relays at a time. It comes with a collector-emitter voltage around 50 V and input voltage residing at 30 V. Before we move further, we must know what is Darlington transistor?. Someone suggested this driver array to get the current I need: datasheet I also need a 12V signal and about a current of mA in order to control a relay coil. My 12V signal would come from a logic gate that will provide a current of I = 10mA. So here is where I need the driver. But I need to keep 12V at the driver outputs.

The Texas Instruments ULNxA/ULQxA is designed for a variety of applications, including relay drivers, hammer drivers, lamp drivers, display drivers (LED. Abstract: UDNA equivalent MP equivalent d DARLINGTON SINK DRIVER TLP equivalent MP equivalent ULNA application relay driver ic. Feature: 1. The ULNA device is a 50 V, mA Darlington transistor array. 2. The device consists of eight NPN Darlington pairs, which have a high.