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Product Detailed Parameters
- Description：40V STEPPING MOTOR DRIVER. BD634
- Series：-
- Mfr：Rohm Semiconductor
- 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：Logic
- Technology：DMOS
- Step Resolution：1, 1/2
- Applications：Camera, Printer
- Current - Output：1.35A
- Voltage - Supply：8V ~ 33V
- Voltage - Load：-
- Operating Temperature：-25°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：20-VSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：20-HTSSOP-B
- Grade：-
- Qualification：-
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Overview
The BD63401EFV-E2 is a bipolar stepping motor driver manufactured by ROHM Semiconductor, designed for applications requiring robust motor control within a compact surface-mount package. This component operates with a supply voltage range of 2.5 V to 5.5 V and supports load voltages up to 40 V, delivering an output current capability of 1.35 A. It features low power consumption with a typical operating supply current of 1.6 mA. The device is housed in a 20-pin HTSSOP-B (VSSOP) package, suitable for SMD/SMT installation, and functions reliably across a temperature range of -25°C to +75°C.
Feature Summary
- Bipolar stepper motor driver architecture utilizing DMOS logic technology
- Low power consumption design with minimal operating supply current
- Integrated protection mechanisms for reliable motor operation
Applications
- Precision positioning systems in industrial automation equipment
- Control units for office automation devices such as printers and scanners
- Embedded motion control modules in consumer electronics
Procurement Notes
Verify the specific suffix E2 against the official ROHM datasheet to confirm compliance with RoHS directives and lead-free manufacturing standards. Confirm that the 20-HTSSOP-B package matches your PCB footprint requirements. Check the latest manufacturer status, as availability may vary due to production cycles or lifecycle changes. Ensure thermal management strategies align with the specified power dissipation limits for your intended application environment.
Selection Notes
Select this component when a bipolar stepper motor requires precise control with moderate current demands under low-voltage logic conditions. The 40 V load voltage rating provides headroom for various motor types. Consider the 20-pin HTSSOP-B package for space-constrained designs. Evaluate the -25°C to +75°C operating range against your environmental constraints. Compare against other series members if higher current or different voltage ranges are needed.
Part Context
This part belongs to the BD63401EFV series of bipolar stepper motor drivers from ROHM Semiconductor. It is categorized under Motor / Motion / Ignition Controllers & Drivers within the PMIC family. The device is distinct from higher-current variants like the BD63730EFV or lower-voltage specific models, offering a balance of performance and efficiency for standard bipolar stepper applications.
Replacement Considerations
Direct substitutes within the same ROHM family include variations in the BD634xx series with differing current ratings or package options. Cross-manufacturer replacements require matching bipolar drive topology, 40 V load voltage tolerance, and similar pinout configurations. Verify electrical characteristics and thermal performance before substitution.
