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Product Detailed Parameters
- Description：IC MTR DRV BIPOLAR 2.7-15V 16QFN
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Motor Type - Stepper：Bipolar
- Motor Type - AC, DC：Brushed DC
- Function：Driver - Fully Integrated, Control and Power Stage
- Output Configuration：Half Bridge (4)
- Interface：Parallel
- Technology：DMOS
- Step Resolution：1, 1/2
- Applications：General Purpose
- Current - Output：1A
- Voltage - Supply：2.7V ~ 15V
- Voltage - Load：2.7V ~ 15V
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-WFQFN Exposed Pad
- Supplier Device Package：16-QFN/MLP (3x3)
- Grade：-
- Qualification：-
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Overview
The A3916GESTR-T is a fully integrated bipolar stepper or dual brushed DC motor driver manufactured by Allegro MicroSystems. It utilizes DMOS technology and features a parallel interface with four half-bridge outputs. The device supports a supply voltage range of 2.7V to 15V and delivers an output current of 1A per channel. It offers 1, 1/2, or full step resolution and operates within a junction temperature range of -40°C to 150°C. The component is housed in a 16-WFQFN package with an exposed pad.
Feature Summary
- Integrates all motor control functions including PWM fixed off-time peak current control determined by external resistor values.
- Features an integrated charge pump requiring only a single external capacitor for operation.
- Provides diagnostic output signals indicating overtemperature and overcurrent protection events.
Applications
- Office automation equipment
- Industrial automation systems
- Retail point-of-sale terminals
- 3D printing mechanisms
Procurement Notes
Verify the specific suffix 'ES' confirms the 16-pin QFN package configuration. Confirm RoHS3 compliance status for environmental regulations. Ensure the application circuit matches the required 2.7V to 15V operating range. Validate thermal management requirements for the exposed pad design.
Selection Notes
Select this part for applications requiring low-voltage bipolar stepper or dual brushed DC motor control. It is suitable for designs powered by single-cell lithium-ion batteries or three AA batteries. Consider the 16-pin QFN footprint for space-constrained layouts.
Part Context
This component belongs to the A3916 series of low-voltage motor drivers. It is designed to replace discrete solutions by integrating control logic and power stages. The device simplifies design by minimizing external component count while providing robust protection features.
Replacement Considerations
The A3916GESTR-T-1 serves as a pin-compatible alternative featuring a 20-QFN package. Verify mechanical compatibility before substitution due to the different package dimensions.
