Pololu DRV8434S SPI Stepper Motor Driver Carrier Potentiometer for Max. Current Limit

Pololu DRV8434S SPI Stepper Motor Driver Carrier Potentiometer for Max. Current Limit

14,95 € (Net 12,56 € )

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Delivery time: 6 - 8 Workdays (DE - int. shipments may differ)

SKU: PO3766
GTIN: 4060137080272
Category: Driver
Manufacturers: Pololu
MPN: 3766
Storage Tiers: Maintain

Description
Reviews

This breakout board for TI’s DRV8434S microstepping bipolar stepper motor driver operates from 4.5 V to 48 V and can deliver up to approximately 1.2 A per phase continuously without a heat sink or forced air flow (up to 2 A peak). The SPI interface allows configuration of the current limit, step mode (11 step modes from full-step through 1/256-step), decay mode, and stall detection. The driver also features built-in protection against under-voltage, over-current, and over-temperature conditions. This version of the board uses an on-board potentiometer for setting the maximum current limit, and SPI can be used to set the actual current limit to intermediate values in increments of the set maximum/16.

This product is a carrier board or breakout board for the DRV8434S stepper motor driver from Texas Instruments (TI); we therefore recommend careful reading of the DRV8434S datasheet before using this product. This stepper motor driver lets you control one bipolar stepper motor at up to approximately 1.2 A per phase continuously without a heat sink or forced air flow.

Features

4.5 V to 48 V supply voltage range
Can deliver 1.2 A per phase continuously without additional cooling
Can interface directly with 1.8 V, 3.3 V, and 5 V systems
Highly configurable through SPI interface
Optional STEP/DIR control pins (stepping can also be controlled through SPI interface alone)
Eleven different step resolutions: full-step with 100% current, full-step with 70% current, non-circular 1/2-step, 1/2-step, 1/4-step, 1/8-step, 1/16-step, 1/32-step, 1/64-step, 1/128-step, 1/256-step
Eight configurable decay modes, including smart tune dynamic decay and ripple control modes
Two current limit control options available, each with two header pin assembly options, making four versions in all:
- Potentiometer for Max. Current Limit: an on-board potentiometer sets the maximum current limit up to 2 A, and the actual current limit can be scaled down through SPI
  - with header pins included but not soldered
  - with header pins soldered
- 2A Max. Current Limit: the maximum current limit is fixed at 2A and the actual current limit is set solely through SPI in increments of 125 mA
  - with header pins included but not soldered
  - with header pins soldered
Integrated stall detection
Over-temperature thermal shutdown, over-current protection, open load detection ,under-voltage lockout, and charge pump over-voltage protection
Driver IC integrates spread spectrum clocking of its internal oscillator and charge pump for reduced EMI
4-layer, 2 oz copper PCB for improved heat dissipation
Exposed solderable ground pad below the driver IC on the bottom of the PCB

This version of the DRV8434S Stepper Motor Driver Carrier uses an on-board trimmer potentiometer to set the maximum current limit. Header pins are included but not soldered (see item PO3767 for a version of this carrier with header pins already installed). For a version with a fixed 2 A maximum current limit see item PO3768.

Dimensions

Size: 0.6? × 0.8?
Weight: 1.3 g. Without included optional headers.

General specifications

Minimum operating voltage: 4.5 V. Inputs below 6 V reduce the maximum settable current limit. With 4.5 V in the maximum settable limit is 1.75 A.
Maximum operating voltage: 48 V
Continuous current per phase: 1.2 A. Without a heat sink or forced air flow.
Maximum current per phase: 2 A. With sufficient additional cooling.
Minimum logic voltage: 1.8 V. Logic high threshold varies for two-state, tri-state, and quad-state pins.
Maximum logic voltage: 5.5 V. Absolute maximum voltage on any input is 5.75 V.
Microstep resolutions: full with 100% current, full with 70% current, non-circular 1/2, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128, 1/256
Current limit control: potentiometer for max with SPI scaling
Reverse voltage protection?: N
Header pins soldered?: N