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Product Detailed Parameters
- Description：IC MTR DRV BIPOLR 8-32V 48HTSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Motor Type - Stepper：Bipolar
- Motor Type - AC, DC：-
- Function：Driver - Fully Integrated, Control and Power Stage
- Output Configuration：Half Bridge (8)
- Interface：Logic
- Technology：Power MOSFET
- Step Resolution：1, 1/2, 1/4, 1/8
- Applications：General Purpose
- Current - Output：1.5A
- Voltage - Supply：8V ~ 32V
- Voltage - Load：8V ~ 32V
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：48-PowerTFSOP (0.240", 6.10mm Width)
- Supplier Device Package：48-HTSSOP
- Grade：-
- Qualification：-
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Overview
The DRV8821DCA is a dual bipolar stepper motor driver manufactured by Texas Instruments. It operates within a supply voltage range of 8 V to 32 V and supports a maximum output current of 1.5 A per phase. The device utilizes an HTSSOP package with 48 pins, measuring 12.6 mm in length and 6.2 mm in width, with a height of 1.05 mm. It functions reliably across an operating temperature range of -40 °C to +85 °C and features a typical switching frequency of 50 kHz.
Feature Summary
- Integrated dual H-bridge architecture designed for driving bipolar stepper motors
- Supports multiple microstepping resolutions including full, half, quarter, eighth, sixteenth, and thirty-second step modes
- Includes built-in blank time control to optimize peak current regulation
Applications
- Bipolar stepper motor control systems
- Motion control applications requiring precise positioning
- Industrial automation equipment
Procurement Notes
Verify the specific suffix DCA against official datasheets to confirm pinout compatibility and thermal characteristics. Ensure the selected component matches the required HTSSOP footprint and lead configuration for your PCB layout. Cross-reference the manufacturer's latest documentation to confirm active status and environmental compliance details before finalizing procurement.
Selection Notes
Select this component when designing circuits that require integrated control for bipolar stepper motors within a 32 V supply limit. Consider the 1.5 A current capability and the availability of fine microstepping options for smooth motion profiles. Evaluate the thermal performance requirements given the HTSSOP package size and the intended operating temperature range of the application environment.
Part Context
This part belongs to the DRV8821 family of motor drivers from Texas Instruments. These devices are engineered to provide complete motion control solutions by integrating power switches and control logic. The series is commonly utilized in embedded systems where space efficiency and reliable stepper motor operation are critical design constraints.
Replacement Considerations
Consult official substitution guides for compatible alternatives such as the DRV8825 or DRV8828 if higher current ratings or different interface requirements are needed. Verify pin-to-pin compatibility and electrical specifications before replacing the DRV8821DCA in existing designs.
