MTS2916A - Uncategorized Microchip - Free user manual and instructions
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| Product Type | Stepper Motor Driver IC |
| Brand | Microchip |
| Model | MTS2916A |
| Package Type | SOIC-28 |
| Supply Voltage | 8 V to 35 V DC |
| Output Current (per phase) | Up to 1 A (with heatsink) |
| Logic Supply Voltage | 5 V DC |
| Microstep Resolution | 1/2, 1/4, 1/8, 1/16 step |
| Control Interface | STEP and DIR |
| Current Control | Bipolar constant current PWM with mixed decay |
| Protection Features | Overcurrent, thermal shutdown, undervoltage lockout |
| Operating Temperature Range | -40 °C to +85 °C |
| Dimensions (approx) | 18.0 x 7.5 x 2.5 mm |
| Weight (approx) | 1.5 g |
| Maintenance and Cleaning | Use isopropyl alcohol; avoid water and moisture. |
| Safety Precautions | Operate within voltage limits; use proper heatsinking; avoid shorts. |
| Spare Parts | This is an integrated circuit; no replaceable parts. |
| General Information | Refer to the official datasheet for detailed electrical characteristics. |
Frequently Asked Questions - MTS2916A Microchip
How do I connect the MTS2916A to a stepper motor?
Connect the motor coils to outputs OUT1A, OUT1B, OUT2A, OUT2B. Supply motor voltage to VM and logic voltage to VDD. Ground GND. Apply step pulses to STEP pin and direction signal to DIR.
What is the maximum motor current the MTS2916A can handle?
The maximum output current per phase is 1 A continuous (with proper heatsinking). Peak current may be higher but must be limited to avoid thermal shutdown.
How do I set the microstep resolution?
Microstep resolution is set via the MS1 and MS2 pins. For full step, both low; for 1/2 step, MS1 high, MS2 low; for 1/4 step, MS1 low, MS2 high; for 1/8 step, both high; for 1/16 step, connect MS1 and MS2 to VDD via a resistor (see datasheet).
Can the MTS2916A be used in 3D printer control boards?
Yes, this driver is suitable for 3D printers and CNC machines. It provides smooth microstepping and low noise operation. Ensure adequate cooling.
Why is my stepper motor overheating?
Overheating may be caused by excessive current setting, insufficient heatsinking, or high ambient temperature. Reduce the current limit using the VREF pin or improve cooling with a heatsink or fan.
How can I protect the MTS2916A from damage?
Use a TVS diode on the motor supply, place decoupling capacitors close to the IC, and avoid reverse polarity. The driver has built-in overcurrent and thermal protection.
Is a 12V supply voltage compatible with the MTS2916A?
Yes, the MTS2916A accepts a motor supply from 8 V to 35 V. 12 V is within range. Ensure the logic supply is 5 V.
What does the SLEEP pin do?
The SLEEP pin is used to put the driver into a low-power sleep mode. Drive it low (0 V) to enable sleep, high (5 V) for normal operation. This reduces current consumption when the motor is idle.
How do I adjust the motor current limit?
The current limit is set by a reference voltage on the VREF pin. Use a potentiometer or fixed resistor divider from VDD. The formula is Itrip = VREF / (8 × R_sense), where R_sense is the sense resistor value.
Where can I find the complete technical datasheet?
The official datasheet is available on the Microchip website or through distributors. Search for 'MTS2916A datasheet' to download the PDF with full specifications.
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USER MANUAL MTS2916A Microchip
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Product information
Brand : Microchip
Model : MTS2916A
Category : Uncategorized