BD18340FV-M Equivalent & Substitute Parts

Part Overview

The BD18340FV-M is an LED Driver IC manufactured by Rohm Semiconductor, classified as a Power Management (PMIC) device. This DC DC Controller features PWM dimming capability with a single output and operates across a 4.5V to 19V supply voltage range. The device is qualified to AEC-Q100 automotive standards and is currently in Last Time Buy status, making identification of equivalent and substitute parts essential for design continuity and procurement planning.

Substiute Parts

BD18340FV-M

Rohm SemiconductorIn Stock: 868BD18340FV-M Datasheet

Current PartRFQ

BD18340FV-ME2

Rohm SemiconductorIn Stock: 10289BD18340FV-ME2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the BD18340FV-M is determined by the following critical parameters:

• Functional Type: DC DC Controller with LED driver capability
• Output Configuration: Single output topology
• Supply Voltage Range: 4.5V to 19V input compatibility
• Control Method: PWM dimming functionality
• Package Compatibility: 16-pin SSOP form factor
• Thermal and Automotive Compliance: Operating range of -40°C to 125°C and AEC-Q100 qualification

The primary substitute identified is BD18340FV-ME2, which maintains identical electrical specifications and package configuration while offering improved availability and active product status. Additional cross-reference parts (TPS92691QPWPRQ1, LT3755IUD-2#PBF, HV9861ANG-G, LT3756IMSE-1#PBF, LM3409HVMYX/NOPB) are listed as extended alternatives within the LED driver controller category.

Parameter Comparison

Engineering Selection Recommendations

The BD18340FV-ME2 is the direct equivalent substitute for the BD18340FV-M. Both parts are manufactured by Rohm Semiconductor with identical electrical and mechanical specifications, including supply voltage range (4.5V to 19V), PWM dimming control, 5MHz frequency, and AEC-Q100 automotive qualification. The primary distinction is product status: BD18340FV-M is Last Time Buy while BD18340FV-ME2 is Active, with significantly higher inventory availability (10,200 units versus 855 units).

For new designs or long-term production requirements, BD18340FV-ME2 is the recommended selection due to active product status and sustained supply. The packaging format difference (Tape & Reel for ME2 versus bulk for M) reflects standard distribution practices and does not affect functional compatibility.

Extended cross-reference parts (TPS92691QPWPRQ1, LT3755IUD-2#PBF, HV9861ANG-G, LT3756IMSE-1#PBF, LM3409HVMYX/NOPB) operate within the LED driver controller category but require detailed electrical and package verification before implementation in existing designs.

Frequently Asked Questions (FAQ)

Q: Can BD18340FV-ME2 be used as a direct replacement for BD18340FV-M in existing designs?

A: Yes. BD18340FV-ME2 is electrically and mechanically identical to BD18340FV-M. Both devices share the same supply voltage range (4.5V to 19V), PWM dimming control, 5MHz operating frequency, 16-LSSOP package, and AEC-Q100 automotive qualification. No circuit modifications are required.

Q: What is the difference between the packaging formats listed for these parts?

A: BD18340FV-M is supplied in bulk packaging, while BD18340FV-ME2 is supplied in Tape & Reel (TR) format. This reflects distribution and handling standards but does not affect the electrical or mechanical properties of the component itself.

Q: Why is BD18340FV-M marked as Last Time Buy?

A: Last Time Buy status indicates that Rohm Semiconductor is discontinuing this specific part number variant. BD18340FV-ME2, which maintains identical specifications, is the active replacement and is recommended for all new procurement and design activities.

Q: Are the extended cross-reference parts (TPS92691QPWPRQ1, LT3755IUD-2#PBF, etc.) direct substitutes?

A: Extended cross-reference parts are listed as alternatives within the LED driver controller category but are not direct pin-for-pin or functional equivalents. These parts require detailed electrical specification review, package compatibility verification, and application circuit validation before use in existing designs.

Q: What certifications and qualifications apply to both the main part and substitute?

A: Both BD18340FV-M and BD18340FV-ME2 are qualified to AEC-Q100 automotive standards and operate across the -40°C to 125°C temperature range, meeting automotive-grade reliability and thermal requirements.