Allegro MicroSystems / TECHNICAL REFERENCE

A4988

Microstepping bipolar motor driver with integrated translator.

FPGA.io Part Number FIO-B1C2A685F4ED797EInternal catalogue reference · manufacturer MPN remains unchanged

Technical reference · Base device — ordering suffix not specified · Checked 2026-09-28

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A4988 — technical feature overview — Technical schematicFPGA.io technical schematic for A4988. Values summarize the documented fields below; consult their source conditions. This is an abstract diagram, not a product photograph, package drawing or pinout. Parameter sources below ↓

DOCUMENTED FACTS

Technical parameters

3 source-linked fields

Values apply to the device and conditions identified in each source. Family maxima, package limits and full ordering-code specifications must not be treated as interchangeable.

Parameter	Documented value	Source & conditions
Load supply operating range	8–35 V	Allegro A4988 datasheet ↗Electrical characteristics; load and logic supplies; output driver rows
Logic supply operating range	3–5.5 V	Allegro A4988 datasheet ↗Electrical characteristics; load and logic supplies; output driver rows
Maximum source on-resistance at −1.5 A	430 mΩ	Allegro A4988 datasheet ↗Electrical characteristics; load and logic supplies; output driver rows

Official documents

Allegro A4988 datasheetElectrical characteristics; load and logic supplies; output driver rowsPDF ↗

Ordering and board constraints

This reference identifies a base device. Package, speed grade, temperature, qualification and packing suffixes have not been inferred.

Device identity and listed specifications are source-backed. Confirm the complete ordering suffix, package and operating conditions before procurement.
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Series & categories

motor and gate drivers →

COMPLETE PART IDENTITIES

Ordering numbers for A4988

1 documented code

These references belong to this device. Evidence labels distinguish reviewed specifications, public listings and manufacturer coding examples. Counts describe this site’s documented coverage, not stock or all configurations offered by the manufacturer.

Full ordering number	Package	Speed / temperature	Evidence	Next step
A4988SETTR-T	28-contact QFN	Not verifiedNot verified	Manufacturer-listed codeView source ↗	Device details →Request quotation

1 of 1 codes shown

Not verified means that parameter has not been independently established for this exact code. A code example is not confirmation that a configuration can be ordered today.