The A4993 is an automotive-grade bipolar stepper motor driver with integrated phase current control and microstepping, designed for applications such as engine management and HVAC control. It operates from 3.5 to 50 V and supports peak motor currents up to 1.4 A at 28 V. The device is packaged in a 20-pin TSSOP with an exposed thermal pad, measuring 4.4 mm by 6.5 mm with a nominal height of 1.2 mm. It features adaptive mixed current decay, synchronous rectification, diagnostics for stall, open-load, and short-circuit conditions, and SPI-compatible serial configuration. Operating junction temperature ranges from -40 °C to 150 °C, with a maximum continuous junction temperature of 165 °C.
The A4993 offers flexible and precise control of bipolar stepper motors, with integrated phase current control, a built-in translator for easy microstepping, and SPI control for advanced configuration and diagnostics.
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Download Datasheet
Win Source Part Number: 1131620-A4993KLPTR-T
Category: Integrated Circuits (ICs)>PMIC - Motor Drivers, Controllers
Package: Tape & Reel (TR)
Applications: Automotive
Standard Package: 8,000
Mounting: SMD (SMT)
Technology: DMOS
Current - Output: 1.4A
Function: Driver - Fully Integrated, Control and Power Stage
Interface: SPI, Step/Direction
Output Configuration: Half Bridge (4)
Voltage - Load: 3.5V ~ 50V
Motor Type - Stepper: Bipolar
Step Resolution: 1, 1/2, 1/4, 1/8, 1/16
Voltage - Supply: 3.5V ~ 50V
Package / Case: 20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package: 20-TSSOP-EP
Temperature Range - Operating: -40°C ~ 150°C (TA)
ECCN: EAR99
Fake Threat In the Open Market: 60 pct.
MSL Level: 1 (Unlimited)
REACH Status: REACH Unaffected
HTSUS: 8542.39.0001
Mfr: Allegro MicroSystems
Base Product Number: A4993
Stepper Motor Controller, Product overview: A4993KLPTR-T from Allegro MicroSystems is a Motor Driver IC for embedded motor control, robotics, automation equipment, haptic feedback, pumps, fans, and industrial motion systems. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include Stepper. Search-friendly keywords include motor driver IC, H-bridge, stepper motor, PWM control, motion control, Stepper, Motor Drivers, Controllers. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 744-A4993KLPTR-T can be used for catalog matching and distributor lookup.
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| Allegro MicroSystems Inc. | Win Source Electronics | ERSAELECTRONICS PTE. LTD. | DigiKey | Quarktwin Technology Ltd. | Shenzhen Shengyu Electronics Technology Limited | Lingto Electronic Limited | |
|---|---|---|---|---|---|---|---|
| Product Category | Stepper Motor Drives | Motion Controllers | DC Motor Drives | DC Motor Drives | Motor Controllers | Motor Controllers | Motor Controllers |
| Product Number | A4993KLPTR-T | 1131620-A4993KLPTR-T | 744-A4993KLPTR-T | 620-A4993KLPTR-TTR-ND | A4993KLPTR-T | A4993KLPTR-T | A4993KLPTR-T |
| Product Name | Auto Stepper Motor Driver W/Internal Current Sense | Integrated Circuits (ICs) - PMIC - Motor Drivers, Controllers | Stepper Motor Driver IC | Motor Drivers, Controllers | Motor Drivers, Controllers | Integrated Circuits (ICs) - Power Management (PMIC) - Motor Drivers, Controllers | PMIC - Motor Drivers, Controllers |
| Configuration | PCB Mount | PCB Mount; "20-TSSOP (0.173"", 4.40mm Width) Exposed Pad" | |||||
| Operating Temperature | -40 to 150 C (-40 to 302 F) | -40 C (-40 F) | -40 to 150 C (-40 to 302 F) | -40 to 150 C (-40 to 302 F) | |||
| AC Input | 4 to 50 volts | 4 to 50 volts | |||||
| DC Input | 4 to 50 volts | 4 to 50 volts |
