ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC MTR DRVR BIPOLAR 3-5.5V 24QFN
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Motor Type - Stepper：Bipolar
- Motor Type - AC, DC：-
- Function：Driver - Fully Integrated, Control and Power Stage
- Output Configuration：Half Bridge (4)
- Interface：Logic
- Technology：DMOS
- Step Resolution：1, 1/2, 1/4, 1/8
- Applications：General Purpose
- Current - Output：2A
- Voltage - Supply：3V ~ 5.5V
- Voltage - Load：8V ~ 35V
- Operating Temperature：-20°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：24-WFQFN Exposed Pad
- Supplier Device Package：24-QFN (4x4)
- Grade：-
- Qualification：-
Download product information
Overview
The A4984SESTR-T is a fully integrated bipolar stepper motor driver manufactured by Allegro MicroSystems. It operates with a supply voltage range of 3V to 5.5V and supports load voltages from 8V to 35V. The device delivers an output current of 2A using DMOS technology. It features selectable step resolutions including full, half, quarter, and eighth steps. The component is housed in a 24-WFQFN package with exposed pad, measuring 4x4mm, and functions within a junction temperature range of -20°C to 150°C.
Feature Summary
- Integrates control logic and power stages for simplified design
- Supports multiple microstepping resolutions for smooth motion control
- Includes built-in translator for straightforward interface operation
Applications
- General purpose stepper motor control systems
- Office automation equipment
- Security systems
- Valve actuators
Procurement Notes
Verify the specific suffix SESTR-T against the manufacturer datasheet to confirm the 24-QFN package and reel quantity specifications. Ensure compatibility with the target PCB footprint and thermal management requirements for the exposed pad configuration before finalizing procurement orders.
Selection Notes
Select this component when a compact solution with integrated translation logic is required for bipolar stepper motors. It is suitable for applications needing up to 2A output current with low-voltage logic control. Consider thermal dissipation capabilities due to the small QFN package size and high current rating.
Part Context
This part belongs to the A498x family of stepper motor drivers from Allegro MicroSystems. It shares functional similarities with other members like the A4983 and A4985 but differs in pin count and specific electrical characteristics. The A4984 variant typically offers higher current capability compared to some peers in the same series.
Replacement Considerations
Public confirmed substitutes include A4984SETTR-T which shares the same core functionality but utilizes a 32-QFN package instead of the 24-QFN form factor found in the A4984SESTR-T.
