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ELM310

ELM Electronics
Part Number ELM310
Manufacturer ELM Electronics
Description Stepper Motor Controller
Published Apr 14, 2024
Detailed Description ELM310 Stepper Motor Controller Description The ELM310 is an interface circuit for use between high speed logic outputs...
Datasheet PDF File ELM310 PDF File

ELM310
ELM310

Overview
ELM310 Stepper Motor Controller Description The ELM310 is an interface circuit for use between high speed logic outputs and four phase stepper motor driver circuits.
By suitably debouncing mechanical switches, the circuit could also be used for manually controlling stepper motors as well.
This circuit supports two popular modes of operation, and can be switched between the two ‘on the fly’.
The full-step, or single phase wave mode, as it is sometimes called, is entered into at powerup.
This mode provides sequential single phase output signals for driving a variety of circuits with only one output active at any one time.
The other mode that the ELM310 supports is the half-step.
In this case, there are eight distinct output patterns as opposed to the four for the full-step mode.
For each step, the pattern alternates between a single winding being energized, and two adjacent windings, providing eight steps in total.
Applications • Stepper motor drive logic • Process sequencing • Sequential left/right LED driver Features • Low power CMOS design - typically 1mA at 5V • Wide supply range - 3.
0 to 5.
5 volt operation • Two inputs control both mode and motion • No external timing components • Completely static operation - will maintain a step position indefinitely • High current drive outputs - up to 25 mA • Both half and full stepping supported • Very high speed - up to 25000 steps per second Connection Diagram PDIP and SOIC (top view) VDD 1 A2 Dir 3 Step 4 8 VSS 7B 6C 5D Block Diagram Dir 3 Step 4 Mode Full Switch Logic Half CW Step 2A 7B 6C 5D ELM310DSB Elm Electronics – Circuits for the Hobbyist < http://www.
elmelectronics.
com/ > 1 of 5 ELM310 Pin Descriptions VDD (pin 1) This pin is the positive supply pin, and should always be the most positive point in the circuit.
Internal circuitry connected to this pin is used to provide power on reset of the microprocessor, so an external reset signal is not required.
Refer to the Electrical Characteristics secti...


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