Mô Đun Điều Khiển Động Cơ Bước A4988
1 Đánh Giá
Đã Bán 2
153
25.700 đ
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chủ nhật 11/07/2021 lúc 06:13 SA
MÔ TẢ SẢN PHẨM
Reprap Stepper Driver A4988 Stepper Motor Driver Module with Heatsink
Product Description:
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 upmatically 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 times 5 mm, nominal overall package height of 0.90 mm, with an exposed pad for enhanced thermal dissipation. This package is Pb (suffix-T), with 100% matte tin leadframe plating.
Product Introduction:
middot Low RDS (On) Output
middot Automatic current decay mode detection / selection
middot Mix with slow current decay modes
middot Synchronous rectification for low power dissipation
middot Internal UVLO
middot Cross-current protection
middot 3.3 and 5 V compatible logic supply
middot Thermal shutdown circuitry
middot Ground fault protection
middot Load short-circuit protection
middot Optional step five modes: full, 1/2, 1/4, 1/8 and 1/16
Dear buyer:
Pls leave message you want which color, otherwise we ship green A4988 to you!
Product Description:
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 upmatically 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 times 5 mm, nominal overall package height of 0.90 mm, with an exposed pad for enhanced thermal dissipation. This package is Pb (suffix-T), with 100% matte tin leadframe plating.
Product Introduction:
middot Low RDS (On) Output
middot Automatic current decay mode detection / selection
middot Mix with slow current decay modes
middot Synchronous rectification for low power dissipation
middot Internal UVLO
middot Cross-current protection
middot 3.3 and 5 V compatible logic supply
middot Thermal shutdown circuitry
middot Ground fault protection
middot Load short-circuit protection
middot Optional step five modes: full, 1/2, 1/4, 1/8 and 1/16
Dear buyer:
Pls leave message you want which color, otherwise we ship green A4988 to you!
