Specs side by side
2 parts compared · 0 differing specs across 5 total parameters.
| Parameter | ||
|---|---|---|
| Case | QFN-28 (die) / StepStick 16-pin module | QFN-28 (die) / StepStick 16-pin module |
| Component Category | Stepper Motor Drivers (StepStick) | Stepper Motor Drivers (StepStick) |
| Market Reality | The StepStick footprint turned the A4988 into the default stepper driver of desktop 3D printers, CNC routers and camera rigs, and then into a family: the DRV8825 as the 1/32 upgrade in literally the same socket, the TMC2208 as the silent generation designed as an A4988 replacement. The socket is genuinely shared - the Vref arithmetic is not. Each generation sets motor current with a different formula (and different sense resistors on clone boards), so the classic failure of this family is a swap that fits perfectly and drives the motor at twice or half the intended current. This page exists to make the trimmer math explicit before the smoke. | The StepStick footprint turned the A4988 into the default stepper driver of desktop 3D printers, CNC routers and camera rigs, and then into a family: the DRV8825 as the 1/32 upgrade in literally the same socket, the TMC2208 as the silent generation designed as an A4988 replacement. The socket is genuinely shared - the Vref arithmetic is not. Each generation sets motor current with a different formula (and different sense resistors on clone boards), so the classic failure of this family is a swap that fits perfectly and drives the motor at twice or half the intended current. This page exists to make the trimmer math explicit before the smoke. |
| Role In Circuit | Original Reference Part | Original Reference Part |
| Sourcing Status | Active Shenzhen Spot Sourcing (24–48h) | Active Shenzhen Spot Sourcing (24–48h) |