BA6846FV-E2 Equivalent & Substitute Parts

Part Overview

The BA6846FV-E2 is a bipolar motor driver IC manufactured by Rohm Semiconductor, designed for general-purpose stepper motor applications. It integrates control and power stage functionality in a 14-SSOP package, operating across a 2.7V to 9V supply voltage range with 500mA output current capability. The device is classified as "Not For New Designs," indicating it has reached end-of-life status. Finding equivalent or substitute parts is necessary for ongoing production support, maintenance applications, and legacy system replacements where continued component availability is required.

Substiute Parts

BA6846FV-E2

Rohm SemiconductorIn Stock: 19881BA6846FV-E2 Datasheet

Current PartRFQ

LV8734VL-TLM-H

onsemiIn Stock: 1095LV8734VL-TLM-H Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BA6846FV-E2 is determined by the following core parameters:

• Motor type classification (Bipolar stepper motor support)
• Integrated driver function with control and power stage
• Half-bridge output configuration (4 outputs)
• Parallel interface compatibility
• Supply voltage range compatibility or overlap
• Output current capability equal to or exceeding 500mA
• Surface mount technology
• RoHS3 compliance

The LV8734VL-TLM-H qualifies as a substitute based on matching motor type (bipolar), integrated driver function, half-bridge output configuration, parallel interface, and RoHS3 compliance. However, critical differences exist in voltage specifications, package form factor, and output current capacity that must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The LV8734VL-TLM-H is an active product from onsemi and represents a viable substitute for the end-of-life BA6846FV-E2 in applications requiring bipolar stepper motor control with parallel interface operation. Both devices maintain ROHS3 compliance and integrated driver architecture.

Selection of the LV8734VL-TLM-H requires evaluation of the following design constraints:

• Supply voltage range: The LV8734VL-TLM-H operates at 0V to 5.5V, which overlaps with the BA6846FV-E2 range (2.7V to 9V) only between 2.7V and 5.5V. Applications requiring supply voltages above 5.5V cannot use this substitute.
• Load voltage: The LV8734VL-TLM-H supports 9V to 32V load voltage, compared to the BA6846FV-E2 load voltage of 2.7V to 9V. This represents an extended capability for higher-voltage motor applications.
• Output current: The LV8734VL-TLM-H provides 1.5A output current, exceeding the BA6846FV-E2 specification of 500mA.
• Package form factor: The LV8734VL-TLM-H uses a 44-pin package versus the 14-pin package of the BA6846FV-E2, requiring PCB layout redesign.
• Operating temperature: The LV8734VL-TLM-H supports -40°C to 85°C, providing extended low-temperature performance compared to the BA6846FV-E2 range of -25°C to 75°C.
• Moisture sensitivity: The LV8734VL-TLM-H has MSL 3 (168 hours) versus MSL 1 (unlimited) for the BA6846FV-E2, requiring stricter moisture control during storage and handling.

Frequently Asked Questions (FAQ)

Q: Can the LV8734VL-TLM-H directly replace the BA6846FV-E2 without PCB modifications?

A: No. The LV8734VL-TLM-H uses a 44-pin LSSOP package with exposed pad, while the BA6846FV-E2 uses a 14-pin LSSOP package. PCB layout redesign is required for pin mapping and thermal management.

Q: What is the critical voltage compatibility issue between these devices?

A: The BA6846FV-E2 supports supply voltages up to 9V, while the LV8734VL-TLM-H maximum supply voltage is 5.5V. Applications operating above 5.5V supply voltage cannot use the LV8734VL-TLM-H as a substitute.

Q: Does the LV8734VL-TLM-H support the same stepper motor types?

A: Both devices support bipolar stepper motors with parallel interface control. The LV8734VL-TLM-H additionally supports brushed DC motor operation and offers programmable step resolution (1, 1/2, 1/4, 1/8), which the BA6846FV-E2 does not specify.

Q: What are the moisture handling differences?

A: The BA6846FV-E2 has MSL 1 (unlimited moisture sensitivity level), allowing indefinite storage without moisture control. The LV8734VL-TLM-H has MSL 3 (168 hours), requiring desiccant storage and limiting shelf life to 168 hours after moisture exposure.

Q: Are both devices RoHS compliant?

A: Yes. Both the BA6846FV-E2 and LV8734VL-TLM-H are ROHS3 compliant and REACH unaffected.

Q: What is the temperature operating range difference?

A: The BA6846FV-E2 operates from -25°C to 75°C. The LV8734VL-TLM-H operates from -40°C to 85°C, providing extended low-temperature capability and higher maximum operating temperature.