A4988 driver Stepper Motor Driver includes a fixed off-time current regulator, the regulator can be in slow or mixed decay mode. The converter is the key to the easy implementation of the A4988. There are no phase sequence tables, the high-frequency control interface programming etc. The application of A4988 interface is very suitable for a complex microprocessor is not available or overload.
Features
Automatic current decay mode detection/choice.
Mixed with slow current decay mode.
The low power dissipation of synchronous rectifier.
Internal UVLO(ultra voltage lockout).
Crossover current protection.
Thermal shutdown circuit.
Ground fault protection.
Loading and short circuit protection.
The optional five-step mode: full, 1/2, 1/4, 1/8 and 1/16.
Specification
| Input Supply Voltage (VDC) | 8 ~ 35 |
| Operating Current (A) | 1.0A(No Heatsink ), 2.0A (with Heat-Sinking) |
| Logic Input (V) | 3 ~ 5.5 |
| Five Step Mode | full, 1/2, 1/4, 1/8 and 1/16. |






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