A4988 is a complete microstepping motor driver with built-in translator for easy operation. This product is available in full, half, 1/4, 1/8 and 1/16 step modes operate bipolar stepper motors, output drive capacity of up to 35 V and ± 2 A. A4988 includes a fixed off-time current regulator, the regulator in slow or mixed decay modes. A4988 converter is the key to the easy implementation. As long as the “step” input inputting one pulse drives the motor one microstep. There are no phase sequence tables, high frequency control lines, or complex interfaces to program. A4988 interface is very suitable for complex microprocessor is unavailable or is overburdened.
In the micro-step operation, A4988 chopping control inside automatically selects the current decay mode (Slow or Mixed). In mixed decay mode, the device is initially set to a fixed downtime in some fast decay, then the rest of the slow decay downtime. Mixed decay current control scheme results in reduced audible motor noise, increased step accuracy, and reduced power consumption. Internal synchronous rectification control circuitry is provided to improve the pulse-width modulation (PWM) operation power consumption. Internal circuit protection includes: thermal shutdown with hysteresis, undervoltage lockout (UVLO), and crossover-current protection. Special power sequencing.
A4988 surface mount QFN package (ES), a size of 5 mm × 5 mm, nominal overall package height of 0.90 mm, with an exposed pad for
Signal input: single ended, pulse / direction
Subdivision optional: 1/2/4/8/16/32 subdivision
Output current: 0.5A-4.0A
Input voltage: 9-42VDC ( Optimal: 12-30VDC )
The current is automatically halved at rest.
TB6600 Can drive 4, 6 and 8 Lead two-phase, four-phase stepper motor
Optocoupler isolated signal input, strong anti-interference ability,
With overheating, overcurrent, undervoltage lockout, input voltage anti-reverse protection and other functions
Small size, easy to install
External signal 3.3-24V universal, no series resistor required
Operating Temperature: -10 to 45 Degrees Celsius
Storage temperature: -40 to 70 Degrees Celsius
Chopping Frequency: less than 50KHZ
Description:
* Total weight: 67g
* Gear Motor:
* Operating voltage: 3V ~ 12V DC (recommended value is 6 ~ 8V)
* Maximum torque: 800g.cm (3V)
* Speed without load: 170RMP (3V)
* Reduction ratio: 1:48
* Load current: 70mA (250mA MAX) (3V pm)
* With EMC, it has strong anti-interference ability and causes no interference to micro-controller.
* Center hole: 5.3MM x 3.66MM
* Diameter: 66MM
* Width: 2.66MM
Size: 20*15*25
Axial length: 8 mm
Trunnion:2 mm
Reference current: 0.35 to 0.4 A
3 v speed: 17000-18000 revolutions per minuteThis is a general motor suitable for small toy car, using 3V DC voltage.
01. Rated Voltage:DC 12 V
02. Speed : 100 RPM
03. Shaft Diameter : 3 mm
04. Size:Diameter: 12 mm
05. fuselage without shaft length: 26 mm
06. Output axial length: 10 MM to 4.4 MM
07. Name:DC Mini Metal Gear Motor.
08. Voltage range:6-12V