Price: ₹10,213.00 - ₹4,085.49
(as of Dec 10, 2022 06:49:45 UTC – Details)
with output drive performance up to 35 V and +1A. The A4988 includes a fixed-off time t regulator that can operate in slow or mixed decay modes. The converter is the button to the ease of implementation of the A4988. As long as the “step” input in a pulse, you can drive the motor to generate micro-steps. The A4988 interface is perfect for complex microprocessor unavailability or overload applications.
During microstep operation, the choppers control within the A4988 automatically selects the t decay mode (slow or mixed). In the mixed decay mode, the device is initially set to decay quickly for a fixed part of the downtime and then decay slowly for the remainder of the downtime. The mixed decay t control scheme reduces ble motor noise, increases stepping accuracy, and reduces power consumption. Internal synchronous rectification control circuitry is provided to improve power consumption during pulse width modulation (PWM) operation. Internal circuit protections includes: thermal shutdown with hysteresis, undervoltage lockout (UVLO). The A4988 is available in a surface mount QFN package with a nominal overall package height of 0.90mm and an exposed heat sink for enhanced heat dissipation.
Compared to 4988, the advantages of DRV8825 are:
t up to: 2.5A
Support up to: 1/32 stepping mode
4-layer printed circuit board, better heat dissipation performance.
Chip internal resistance is smaller, low heat generation, fine heat dissipation.
Specifications:
Material: Printed circuit board
Type: 4988 set, 8825 set (optional)
Item size: 53.4 * 68.6mm / 2.10 * 2.70in
Package size: 100 * 100 * 10mm / 3.94 * 3.94 * 0.39in
Package weight: 90g / 3.17ounce
Packing List:
1pcs * Development Board
1pcs * Carver CNC Board
4pcs * A4988/8825 Stepper
1pcs * 40-pin Row of Pins
1pcs * Cable
The design of circuit diagram is open, and the development software interface is free to download, or you can modify it according to your needs. Sensors and various electronic component can be connected easily. Using a high-speed microprocessor controller (ATMEGA328), the development interface and environment are very simple and easy to understand, very suitable for beginners to learn.
CNC V4 Plotter Expansion Board:
This expansion board can be used as a driver expansion board for engraving machines, 3D printers, etc. It has 3 channels of slots in the 3-channel A4988 stepper motor driver module for driving stepper motors (not included). Each channel of the stepper motor only needs 2iO ports, which means 6iO ports are enough to manage 3 stepper motors.
A4988 Motor Driver Module:
Warranty not applicable for this product
