BD8389FV-ME2 Equivalent & Substitute Parts

Part Overview

The BD8389FV-ME2 is a 12-output linear LED driver IC manufactured by Rohm Semiconductor, designed for PWM dimming applications in automotive-grade systems. This shift register-based driver supports output currents up to 50mA per channel with a supply voltage range of 3V to 5.5V and maximum output voltage of 40V. The device is packaged in a 20-LSSOP surface mount package and carries AEC-Q100 automotive qualification with ROHS3 compliance. Equivalent substitute parts are identified based on matching electrical specifications, output configuration, and mechanical compatibility to support component sourcing flexibility and supply chain continuity.

Substiute Parts

BD8389FV-ME2

Rohm SemiconductorIn Stock: 1213BD8389FV-ME2 Datasheet

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TLC6C5912PWR

Texas InstrumentsIn Stock: 78255TLC6C5912PWR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BD8389FV-ME2 are identified based on the following critical parameters that determine functional and mechanical compatibility:

• Number of Outputs: 12 channels (required match)
• Voltage - Supply Range: 3V to 5.5V (required match)
• Voltage - Output: 40V (required match)
• Current - Output / Channel: 50mA (required match)
• Topology: Shift Register with internal switches (required match)
• Package Width: 4.40mm (0.173") (required match for PCB layout compatibility)
• Mounting Type: Surface Mount (required match)
• Product Status: Active (required match)

The TLC6C5912PWR from Texas Instruments meets all critical electrical and mechanical parameters. Both devices feature identical 12-output shift register architecture, matching supply voltage specifications, output current ratings, and package dimensions. The primary differences are in operating temperature range and dimming capability specification, which do not affect core substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

Both the BD8389FV-ME2 and TLC6C5912PWR are active production devices with ROHS3 compliance and EAR99 export classification. The BD8389FV-ME2 carries AEC-Q100 automotive qualification and supports an extended operating temperature range to 125°C, making it suitable for high-temperature automotive applications. The TLC6C5912PWR operates to 105°C and carries MSL-3 moisture sensitivity, requiring controlled storage conditions during manufacturing.

Selection between these parts should be based on application temperature requirements and supply chain availability. For applications requiring the full -40°C to 125°C operating range or automotive-grade qualification, the BD8389FV-ME2 is the primary choice. The TLC6C5912PWR is suitable for applications operating within the -40°C to 105°C range where supply availability or cost considerations favor the Texas Instruments device.

Frequently Asked Questions (FAQ)

Q: Can the TLC6C5912PWR directly replace the BD8389FV-ME2 in all applications?

A: The TLC6C5912PWR is electrically compatible for applications operating within -40°C to 105°C. Applications requiring operation above 105°C or AEC-Q100 automotive qualification must use the BD8389FV-ME2. Both devices share identical pin counts, package widths, and electrical specifications within their respective temperature ranges.

Q: What is the difference between 20-LSSOP and 20-TSSOP packaging?

A: Both packages are 20-pin surface mount packages with identical 4.40mm width and 0.173" body width. LSSOP denotes Rohm's package designation, while TSSOP denotes Texas Instruments' package designation. The packages are mechanically compatible for PCB layout purposes.

Q: Does the MSL-3 rating of the TLC6C5912PWR affect substitution eligibility?

A: MSL-3 (168 hours) requires controlled moisture exposure during storage and handling. This does not affect electrical substitution eligibility but requires adherence to moisture control procedures during manufacturing. MSL-1 (unlimited) for the BD8389FV-ME2 allows unrestricted storage conditions.

Q: Are there any dimming capability differences between these parts?

A: The BD8389FV-ME2 specifies PWM dimming capability. The TLC6C5912PWR does not specify dimming in the provided parameters. Both devices feature shift register topology with internal switches supporting PWM control implementation at the system level.

Q: Which part should be selected for new automotive designs?

A: The BD8389FV-ME2 is recommended for new automotive designs due to AEC-Q100 qualification and extended temperature range support. The TLC6C5912PWR may be considered for non-automotive applications or where supply constraints require alternative sourcing.