LC5910S LED Driver IC Equivalent & Substitute Parts

Part Overview

The LC5910S is an active LED driver integrated circuit manufactured by Sanken Electric USA Inc., classified as a Power Management PMIC. This device functions as a DC-DC regulator with step-down (buck) topology, specifically designed for LED backlight and lighting applications. The IC features PWM dimming capability, single output configuration, and operates across a 12V to 17V supply voltage range at 100kHz switching frequency.

The LC5910S maintains active product status with RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). With 758 units in current inventory, this component is readily available. Identification of equivalent and substitute parts is necessary for design flexibility, supply chain continuity, and procurement optimization in LED driver applications.

Substiute Parts

LC5910S

Sanken Electric USA Inc.In Stock: 813LC5910S Datasheet

Current PartRFQ

LC5910S

Sanken Electric USA Inc.In Stock: 813LC5910S Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LC5910S LED driver IC is determined by strict alignment across the following critical parameters:

Topology & Functional Requirements:

• DC-DC regulator type with step-down (buck) configuration
• Single output channel
• PWM dimming capability for LED backlight applications

Electrical Specifications:

• Supply voltage range: 12V minimum to 17V maximum
• Switching frequency: 100kHz
• Operating temperature range: -40°C to 85°C

Physical & Packaging Constraints:

• 8-SOIC package format with 0.154" (3.90mm) width
• Surface mount mounting type
• Tape & Reel packaging

Compliance & Quality Standards:

• RoHS3 compliance requirement
• MSL 1 (unlimited moisture sensitivity level)
• Active product status

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes for the LC5910S in LED backlight and lighting driver applications.

Parameter Comparison

Engineering Selection Recommendations

The LC5910S maintains active product status with full RoHS3 compliance and MSL 1 rating, indicating unrestricted moisture handling and long-term availability. The parametric equivalent identified in this reference maintains identical electrical, thermal, and physical specifications.

For LED backlight and lighting driver applications requiring 12V to 17V input regulation with PWM dimming control, the LC5910S and its identified equivalent are interchangeable at the component level. Both parts are surface-mount 8-SOIC devices suitable for automated assembly processes and meet all specified compliance requirements.

Selection between equivalent parts should be based on procurement availability, lead time, and inventory status. The 758-unit inventory of the LC5910S provides immediate availability for production requirements.

Frequently Asked Questions (FAQ)

Q: What makes the LC5910S suitable for LED backlight applications?

A: The LC5910S is a step-down DC-DC regulator with integrated PWM dimming capability, designed to convert 12V to 17V input supplies to regulated LED driver outputs. The 100kHz switching frequency and single-output configuration optimize performance for backlight and lighting control circuits.

Q: Are there any package or pinout differences between the LC5910S and its equivalent?

A: No. The identified equivalent maintains identical 8-SOIC packaging with 0.154" (3.90mm) width and surface-mount configuration. Pinout and footprint compatibility are guaranteed for direct PCB substitution.

Q: What is the significance of MSL 1 rating for the LC5910S?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and requires no special moisture-control handling during storage or assembly. This simplifies supply chain management and reduces storage costs compared to higher MSL-rated components.

Q: Can the LC5910S be used in applications outside the specified -40°C to 85°C temperature range?

A: No. The operating temperature range of -40°C to 85°C defines the thermal envelope for guaranteed electrical performance. Applications requiring extended temperature operation require alternative component selection.

Q: Is RoHS3 compliance mandatory for all substitute parts?

A: Yes. RoHS3 compliance is a specified requirement for this component category. All identified substitutes must maintain equivalent RoHS3 certification status for regulatory and procurement compliance.

Q: What is the minimum supply voltage required for LC5910S operation?

A: The LC5910S requires a minimum supply voltage of 12V. Operation below this threshold is outside the specified electrical parameters and will result in improper regulator function.