ULN2003 LOGIC DIAGRAM
ULN2003A - Wikipedia
The ULN2003A is an array of seven NPN Darlington transistors capable of 500 mA, 50 V output. It features common-cathode flyback diodes for switching inductive loads. It can come in PDIP, SOIC, SOP or TSSOP packaging. In the same family are ULN2002A, ULN2004A, as well as ULQ2003A and ULQ2004A, designed for different logic input levels.
ULN2003 – Circuit Wiring Diagrams
outputs of the JK flip-flops are at low level (logic 0). When switch S1 is pressed for the first time, the high level (logic 1) present at J1 input is transferred to Q1 output on the trailing edge of clock (CLK1). The high level (logic 1) at Q1 activates relay RL1 through pin 16 of IC ULN2003 (IC2), turning on device 1 via its normally-opened (N/O)
Relay Driver Circuit using IC ULN2003 with Applications
Relay Driver Circuit using IC ULN2003. It is difficult to use a number of relays with transistors, so, relay driver IC ULN2003A can be used for availing more relays. We can use seven relays with relay driver circuit using ULN2003 and the relay driver circuit using ULN2803 enables to
ULN2003A Darlington Transistor Array Circuit Examples
Here we will explore using the versatile ULN2003A Darlington Transistor array with a typical micro-controller such as Arduino. The ULN2003A is a high-voltage, high-current Darlington transistor array consisting of seven NPN Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads.
Water Level Indicator Circuit Diagram using BC547 and ULN
Circuit Diagram: Arrange the components as shown in the picture. We can use the three different colored LEDs to create three detection levels. Connect three 1K resistors to the pin 15, 13 and 10 of ULN 2003 IC, as shown in the circuit diagram. Connect the pin 7, 4 and 2 of ULN 2003 IC to create three different levels in the water container.[PDF]
ULN200x, ULQ200x High-Voltage, High-Current Darlington
• Logic Buffers 3 Description The ULx200xA devices are high-voltage, high-current Darlington transistor arrays. Each consists of seven NPN Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for Simplified Block Diagram. 2