BA6908F-E2 Equivalent & Substitute Parts

Part Overview

The BA6908F-E2 is a bipolar motor driver IC manufactured by ROHM Semiconductor, designed for driving brushless DC (BLDC) and stepper motors in applications such as fan motor control. The device integrates control and power stage functionality within a compact 8-SOP package, operating across a 3V to 14V supply voltage range with 700mA output current capability.

This part carries a "Not For New Designs" status, indicating that ROHM has discontinued active development and support for this component. Identifying equivalent or substitute parts is necessary for ongoing production support, design refresh cycles, and long-term supply chain continuity.

Substiute Parts

BA6908F-E2
ROHM SemiconductorIn Stock: 7712BA6908F-E2 Datasheet
BA6908F-E2
Current Part
BA6908F-E2
ROHM SemiconductorIn Stock: 7712BA6908F-E2 Datasheet
BA6908F-E2
Parametric Equivalent

Key Parameters

Parameter Value
Manufacturer Part Number BA6908F-E2
Manufacturer ROHM Semiconductor
Category Power Management (PMIC)
Motor Type - Stepper Bipolar
Motor Type - AC, DC Brushless DC (BLDC)
Function Driver - Fully Integrated, Control and Power Stage
Output Configuration Half Bridge (2)
Interface Logic
Technology Bipolar
Current - Output 700mA
Voltage - Supply 3V ~ 14V
Operating Temperature -40°C ~ 100°C
Mounting Type Surface Mount
Package / Case 8-SOIC (0.173", 4.40mm Width)
Supplier Device Package 8-SOP
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected

Substitute Part Grouping Explanation

Substitution for the BA6908F-E2 is determined by strict alignment across the following critical parameters:

Motor driver functionality requires matching motor type support (bipolar stepper and BLDC capability), output configuration (half bridge topology with 2 outputs), and integrated control-power stage architecture. Electrical performance substitution demands equivalent output current rating (700mA), supply voltage range (3V to 14V minimum), and operating temperature range (-40°C to 100°C minimum).

Package compatibility requires surface mount technology with 8-pin SOP footprint (8-SOIC, 0.173" width, 4.40mm). Regulatory compliance must maintain ROHS3 certification, REACH unaffected status, and MSL 1 rating to ensure manufacturing process compatibility and long-term reliability.

Based on the provided input data, the BA6908F-E2 is identified as a parametric equivalent to itself, indicating no alternative substitute parts are available within the specified parameter constraints.

Parameter Comparison

Parameter BA6908F-E2 (Main Part) BA6908F-E2 (Parametric Equivalent)
Manufacturer Part Number BA6908F-E2 BA6908F-E2
Manufacturer ROHM Semiconductor ROHM Semiconductor
Motor Type - Stepper Bipolar Bipolar
Motor Type - AC, DC Brushless DC (BLDC) Brushless DC (BLDC)
Output Configuration Half Bridge (2) Half Bridge (2)
Current - Output 700mA 700mA
Voltage - Supply 3V ~ 14V 3V ~ 14V
Operating Temperature -40°C ~ 100°C -40°C ~ 100°C
Package / Case 8-SOIC (0.173", 4.40mm Width) 8-SOIC (0.173", 4.40mm Width)
RoHS Status ROHS3 Compliant ROHS3 Compliant
REACH Status REACH Unaffected REACH Unaffected

Engineering Selection Recommendations

The BA6908F-E2 carries a "Not For New Designs" product status from ROHM Semiconductor. For applications currently using this component, continued sourcing of the BA6908F-E2 remains viable given current inventory availability (7700 pcs in stock). However, for new design initiatives or long-term production planning, evaluation of alternative motor driver solutions from active product lines is recommended to ensure sustained supplier support and component availability beyond current stock levels.

The part maintains full ROHS3 compliance and REACH unaffected status, confirming regulatory alignment for industrial and consumer applications. MSL 1 rating permits unlimited shelf life storage without moisture bake-out requirements, simplifying supply chain logistics.

Frequently Asked Questions (FAQ)

Q: Why is the BA6908F-E2 marked "Not For New Designs"?

A: This designation indicates ROHM Semiconductor has concluded active development and support for this component. The part remains available through existing inventory channels but will not receive design updates or long-term production commitments.

Q: What are the critical parameters for substituting the BA6908F-E2?

A: Substitute parts must match: bipolar stepper and BLDC motor support, half-bridge output configuration with 2 outputs, 700mA output current, 3V to 14V supply voltage range, -40°C to 100°C operating temperature, 8-SOP surface mount package, ROHS3 compliance, and REACH unaffected status.

Q: Is the 8-SOP package interchangeable with other 8-pin packages?

A: The 8-SOIC (0.173", 4.40mm width) package is specific to this component. Footprint compatibility requires exact package matching; alternative pin counts or package dimensions will not provide direct board-level substitution.

Q: What is the significance of MSL 1 rating?

A: MSL 1 indicates unlimited moisture sensitivity level, meaning the component does not require moisture bake-out procedures before soldering. This simplifies manufacturing processes and reduces handling constraints.

Q: Are there active production alternatives to the BA6908F-E2?

A: Based on the provided parameter set, no alternative substitute parts meeting all specified criteria are documented in this reference. Evaluation of alternative motor driver architectures from active product lines may be necessary for new design initiatives.

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