Product details
Model Number: A4988
Brand Name: New and Original
Key Specifications/Special Features:
Description:A4988 is a complete microstepping motor driver with built-in translator for easy operationThis 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 AA4988 includes a fixed off-time current regulator, the regulator in slow or mixed decay modesA4988 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, under-voltage lockout (UVLO), and crossover-current protection
Special power sequencing
A4988 surface mount QFN package (ES), a size of 5 x5mm, nominal overall package height of 0.90mm, with an exposed pad for enhanced thermal dissipation
This package is Pb (suffix-T), with 100% matte tin lead frame plating
Features:
- Simple step and direction control interface
- Short-to-ground and shorted-load protection
- Five different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step
- Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay)
- Adjustable current control lets you set the maximum current output with a potentiometer, which lets you use voltages above your stepper motor’s rated voltage to achieve higher step rates
Packingincluded:
- 1 x step motor driver module
- 1 x heatsink
Company information:
- A global independent distributors of electronic components
- Welcome OEM, CEM
- A variety of channels to satisfy various demands including military and industrial product
- Sufficient stock on your urgent demand
- Professional knowledge to solve your confusion
- Strong in line:our company is strong in integrated circuit (IC), module, capacitor, resistor, diode, LED, crystal oscillator, SD card
Shipping Information:
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FOB Port:
Shenzhen/Hongkong
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Lead Time:
2
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3
days
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Dimensions per Unit:
10 × 10 × 10 Centimeters
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Weight per Unit:
1 Kilograms
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Units per Export Carton:
100000
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Export Carton Dimensions L/W/H:
100 × 100 × 100 Centimeters
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Export Carton Weight:
10 Kilograms
Main Export Markets:
- Asia
- Mid East/Africa
- Western Europe