ULN2003 Stepper Motor Driver Board
$0.991pcs
ULN2003 driver, 7-channel high-current array, powers steppers/relays with ease, 5V MCU compatible, robust for heavy loads & industrial use！
| Dimensions | 35.0 × 32.0 mm |
|---|---|
| Brand |
easyelecmodule |
3384 in stock
Product Introduction
The ULN2003 is a high-current Darlington transistor array consisting of seven silicon NPN Darlington transistors.
The main function of the ULN2003 is to provide a large current drive capability for the single-chip microcomputer, thereby achieving the current required to drive a stepper motor. Four pairs out of the seven pairs on this board are used.
This board has a connector that can perfectly match the wires of the motor, making it very easy to connect the motor to the board. There are also connections for four control inputs and power connections.
There are four LEDs on this board, which show activity on the four control input lines (indicating the step state). They provide a good visual effect when the motor is running.
This board also comes with an ON/OFF jumper to isolate the power supply of the stepper motor.
ULN2003 Feature
- Built-in ULN2003A motor driver chip
- The common pins of the chip have been externally connected, facilitating connection and use
- 5-12V power supply
- Built-in 4-channel signal indicator lights
- Built-in XH-5P socket, which can directly connect to 28BYJ-48 type stepper motors
ULN2003 Parameter
Parameter | Value |
Output voltage | 50V |
Input voltage | 30V |
Continuous collector current | 500mA |
Operating ambient temperature range | -40℃ to +85℃ |
Storage temperature range | -55℃ to +150℃ |
ULN2003 Usage Instructions
The ULN2003 high-power chip is used to drive the LEDs of stepper motor A, B, C, and D, indicating the working status of the four-phase stepper motor. It is equipped with the standard interface for stepper motors and can be plugged and unplugged directly when in use.
The ULN2003 module is commonly used to drive small five-wire four-phase motors. The LEDs are the indicator lights for the working status of the stepper motor.
Connection method: + terminal connects to +5V, – terminal connects to the negative pole (GND), IN1 – IN4 connect to the IO ports of the microcontroller, and the white terminal socket is inserted into the five-wire four-phase stepper motor.
ULN2003 Application
- Motor drive: It can be used to drive stepper motors, DC motors and so on. For example, in automated equipment, robots, and small mechanical devices, ULN2003 can amplify the control signals and drive the motors to operate in the predetermined direction and at the specified speed.
- Relay drive: It can provide sufficient current and voltage to the relay, enabling it to reliably engage and disengage. In fields such as industrial control, smart home, and security systems, it is commonly used to control the on-off of circuits, achieving remote control or automatic control of equipment. For example, by using ULN2003 to drive the relay to control the switch of lights, the start and stop of motors, etc.
- Display Driver: It can be used to drive display devices such as LED screens and digital tubes. In electronic clocks, counters, billboards and other products, ULN2003 can convert digital signals into currents and voltages suitable for driving display devices, enabling the display devices to operate normally.
- Logic Buffer: In digital circuits, it can be used as a logic buffer to enhance the driving capability of signals, improve the stability and reliability of the circuit. For example, in computer motherboards, electronic instruments and other devices, it is used to connect circuit modules with different logic levels.
- Sensor application: It can be used in conjunction with various sensors to amplify the weak signals output by the sensors, so that subsequent circuits can process them. For example, in the application where the obstacle avoidance sensor controls the rotation of the motor, ULN2003 plays the role of signal amplification and driving.
Relative Information
Shipping Cost
We only ship to the United States. Shipping costs are calculated based on the total order amount.
Shipping Method And Delivery Time
All orders will be processed and shipped within 72 hours of placing the order (excluding weekends and holidays). They will ship from Shenzhen, China, primarily via 4PX logistics. Depending on the destination and logistics conditions, other carriers such as DHL, FedEx, UPS, USPS, etc., may also handle the delivery. Estimated shipping time is 7-12 business days, with actual delivery occurring in 10-17 business days, depending on logistics conditions.
Payment:
We accept Visa, Master card, Maestro, American Express, JCB, Dinner's Club, Discover, Paypal, Apple Pay, Google Pay .
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