ULN2003-HLF Darlington Transistor Arrays IC (DIP-16)
ULN2003-HLF Darlington Transistor Arrays IC (DIP-16)
SKU:VT01650
180 in stock
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The ULN2003 is a 16-pin integrated circuit that contains seven Darlington pairs, each capable of driving loads up to 50V and 500mA. For each of these Darlington pairs, there are corresponding input and output pins, along with a ground pin and an optional common pin. The ground pin is connected to the system ground, while the common pin can be used if needed, though its use is optional.
Interestingly, the ULN2003 does not have a dedicated Vcc (power) pin. Instead, the power required for the internal transistors is drawn directly from the input pins.
Note: Product may vary from images shown in terms of brand name according to the availability.
Features:
- Contains 7 high-voltage and high current Darlington pairs
- Each pair is rated for 50V and 500mA
- Input pins can be triggered by +5V
- All seven Output pins can be connected together to drive loads up to (7×500mA) ~3.5A
- Can be directly controlled by logic devices like Digital Gates, Arduino, PIC etc
- Available in 16-pin DIP, TSSOP, SOIC packages
- 500-mA-Rated Collector Current (Single Output)
- High-Voltage Outputs: 50V
- Output Clamp Diodes
- Inputs Compatible With Various Types of logic
- Relay-Driver
Pin Configuration:
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 to 7 | Input 1 to Input 7 | Seven Input pins of Darlington pair, each pin is connected to the base of the transistor and can be triggered by using +5V |
| 8 | Ground | Ground Reference Voltage 0V |
| 9 | COM | Used as test pin or Voltage suppresser pin (optional to use) |
| 10 to 16 | Output 1 to Output 7 | Respective outputs of seven input pins. Each output pin will be connected to ground only when its respective input pin is high(+5V) |
Working Principle:
When the input pin of the IC gets high, the respective output pin will get connected to ground. The loads connected to the output pin can be maximum of 50V and 500mA each. However, you can run higher current loads by combining two or more output pins together. For example, if you combine three pins you can drive up to (3×500mA) ~1.5A.
The COM pin is connected to ground through a switch; this connection is optional. It can be used as a test switch, meaning when this pin is grounded all the output pins will be grounded.
Applications:
- Used to drive high current loads using Digital Circuits
- Can be used to drive Stepper motors
- High current LED's can be driven
- Relay Driver module (can drive 7 relays)
- Logic Buffers in digital electronics
- Used as Touch sensor for Arduino
Specifications:
- IC Name: ULN2003
- Package/Case: DIP-16
- Brand: Generic
