A4988 driver Stepper Motor Driver

The A4988 driver Stepper Motor Driver is a complete micro-stepping motor driver with a built-in converter, easy to operate. It operates from 8 V to 35 V and can deliver up to approximately 1 A per phase without a heat sink or forced air flow (it is rated for 2 A per coil with sufficient additional cooling). A4988 of the A4988. There are no phase sequence tables, high-frequency control interface programming, etc. The application of the A4988 interface is very suitable for a complex microprocessor that is not available or overloaded. In the stepping operation, the chopping control in the A4988 automatically selects the current decay mode (slow or mixed). The mix decay current control scheme can reduce the audible motor noise, increased step accuracy, and reduce power consumption. Provide internal synchronous rectification control circuitry, to improve the pulse width modulation (PWM) power consumption during operation. Internal circuit protection includes thermal shutdown with hysteresis, under-voltage lockout (UVLO), and crossover current protection. Don’t need special power-up sequencing. A4988 uses a surface mount QFN package (ES), the size is 5 mm × 5 mm, nominal overall package height is 0.90 mm, with an exposed thermal pad to enhance the heat dissipation function.

Features :

1. Supply Voltage: 8-35 VDC.
2. Current: 1.0A  (no heatsink ).
3. Current: 2.0A (with heat-sinking).
4. logic input : 3 – 5.5V.
5. Automatic current decay mode detection/choice.
6. Mixed with slow current decay mode.

Package Includes :

1 x A4988 Stepper Motor Driver- Normal quality.

1 x Heat sink.