BD18341FV-M LED Driver IC Equivalent & Substitute Parts

Part Overview

The BD18341FV-M is a Power Management IC (PMIC) from Rohm Semiconductor designed as an LED Driver with DC-DC controller functionality and PWM dimming capability. This device operates across a 4.5V to 19V supply range and is qualified for automotive applications under AEC-Q100 standards. The main part number is currently in Last Time Buy status with 813 pieces in stock. Equivalent and substitute parts are necessary to ensure design continuity, improve supply chain flexibility, and maintain access to functionally compatible alternatives with active product status.

Substiute Parts

BD18341FV-M

Rohm SemiconductorIn Stock: 843BD18341FV-M Datasheet

Current PartRFQ

BD18341FV-ME2

Rohm SemiconductorIn Stock: 1380BD18341FV-ME2 Datasheet

MFR RecommendedRFQ

BD18342FV-ME2

Rohm SemiconductorIn Stock: 3598BD18342FV-ME2 Datasheet

Parametric EquivalentRFQ

BD18343FV-ME2

Rohm SemiconductorIn Stock: 3275BD18343FV-ME2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BD18341FV-M is determined by strict parameter matching across the following critical criteria:

Mandatory Matching Parameters:

• Type: DC DC Controller
• Number of Outputs: 1
• Voltage Supply Range: 4.5V to 19V
• Frequency Range: 100Hz to 5kHz
• Dimming Method: PWM
• Operating Temperature: -40°C to 125°C (TA)
• Grade: Automotive
• Qualification: AEC-Q100
• Package / Case: 16-LSSOP (0.173", 4.40mm Width)
• Mounting Type: Surface Mount
• Internal Switch(s): No

All three substitute parts (BD18341FV-ME2, BD18342FV-ME2, and BD18343FV-ME2) meet these exact specifications. The primary distinction between the main part and substitutes is packaging format: the main part is supplied as individual units, while all substitutes are available in Tape & Reel (TR) format. Additionally, all substitute parts carry Active product status, providing superior supply chain availability compared to the Last Time Buy status of the main part.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are direct functional equivalents to the BD18341FV-M based on electrical and mechanical parameter matching. Selection among these alternatives should be driven by the following factors:

Product Status Consideration: The main part BD18341FV-M carries Last Time Buy status, indicating limited future availability. All three substitute parts (BD18341FV-ME2, BD18342FV-ME2, BD18343FV-ME2) maintain Active product status, ensuring sustained supply chain access and long-term design viability.

Compliance and Certification: All substitute parts maintain identical automotive qualification (AEC-Q100) and operating temperature specifications (-40°C to 125°C). The substitute parts provide additional compliance documentation: ROHS3 compliance, MSL rating of 1 (Unlimited), and REACH Unaffected status. These certifications support regulatory requirements for automotive and industrial applications.

Packaging Format: The main part is supplied as individual units, while all substitutes are available in Tape & Reel (TR) format. This distinction affects procurement logistics and assembly processes. Tape & Reel packaging is standard for high-volume production environments and automated assembly lines.

Inventory Availability: BD18341FV-ME2 provides 1,350 pieces in stock, BD18342FV-ME2 provides 3,505 pieces, and BD18343FV-ME2 provides 3,214 pieces. These inventory levels significantly exceed the 813 pieces available for the main part, supporting immediate procurement needs.

Frequently Asked Questions (FAQ)

Q: Can BD18341FV-ME2, BD18342FV-ME2, and BD18343FV-ME2 be used interchangeably with BD18341FV-M?

A: Yes. All three substitute parts match the critical electrical and mechanical parameters of the main part: DC-DC controller type, single output configuration, 4.5V to 19V supply range, 100Hz to 5kHz frequency operation, PWM dimming capability, -40°C to 125°C operating temperature, automotive grade, AEC-Q100 qualification, and 16-LSSOP package format. The primary difference is packaging format (individual units versus Tape & Reel) and product status (Last Time Buy versus Active).

Q: What is the difference between the three substitute parts?

A: From an electrical and mechanical standpoint, BD18341FV-ME2, BD18342FV-ME2, and BD18343FV-ME2 are parametrically identical. All three are LED Driver DC-DC controllers with identical specifications. The differences lie in base product numbers (BD18341, BD18342, BD18343) and inventory availability. Selection should be based on procurement requirements and supply chain availability.

Q: Why is the main part BD18341FV-M in Last Time Buy status?

A: Last Time Buy status indicates that the manufacturer is discontinuing this product variant. Customers are advised to transition to Active alternatives to ensure long-term supply chain continuity. All three substitute parts carry Active status, providing sustained availability.

Q: Are there any compatibility concerns with the Tape & Reel packaging format?

A: No. Tape & Reel (TR) packaging is a standard format for surface-mount components and is fully compatible with automated assembly equipment. The 16-LSSOP package dimensions and pin configuration remain identical between individual unit and Tape & Reel formats.

Q: Do the substitute parts meet automotive compliance requirements?

A: Yes. All three substitute parts maintain AEC-Q100 qualification and automotive grade designation, identical to the main part. Additionally, they provide ROHS3 compliance, MSL rating 1 (Unlimited), and REACH Unaffected status, supporting comprehensive regulatory requirements for automotive applications.

Q: Can I mix the main part and substitute parts in the same production run?

A: Yes. Since all parts are parametrically equivalent with identical electrical and mechanical specifications, they can be used interchangeably in the same circuit design and PCB layout. However, packaging format differences (individual units versus Tape & Reel) may affect procurement and assembly logistics.