CL330SG-G LED Driver IC Equivalent & Substitute Parts

Part Overview

The CL330SG-G is a linear LED driver IC manufactured by Microchip Technology, designed for 3-output LED backlight applications. This device features analog and PWM dimming capabilities with a maximum output current of 30mA per channel and operates across a wide supply voltage range of 6.5V to 90V. The part is currently in active production status with 5483 units in stock.

Substitute parts become necessary when the CL330SG-G reaches end-of-life status, when supply constraints occur, or when application requirements demand higher output current capabilities or different operating temperature ranges. Alternative LED driver ICs with compatible electrical and mechanical parameters provide design flexibility while maintaining functional equivalence.

Substiute Parts

CL330SG-G

Microchip TechnologyIn Stock: 5494CL330SG-G Datasheet

Current PartRFQ

TLD1312ELXUMA1

Infineon TechnologiesIn Stock: 18543TLD1312ELXUMA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CL330SG-G is determined by the following critical parameters:

Primary Compatibility Criteria:

• Number of outputs: Must be 3 channels
• Type: Linear LED driver topology
• Internal switching capability: Must include internal switches
• Dimming support: Must support PWM dimming (analog dimming is optional)
• Package form factor: Surface mount with compatible pinout

Secondary Compatibility Criteria:

• Supply voltage range: Substitute must accommodate the application's supply voltage requirements
• Output current per channel: Must meet or exceed 30mA per channel for direct replacement
• Operating temperature range: Must cover the application's thermal requirements
• RoHS and regulatory compliance: Must maintain ROHS3 compliance and REACH unaffected status

The TLD1312ELXUMA1 from Infineon Technologies qualifies as a substitute based on matching the core functional requirements: 3-output linear LED driver with PWM dimming capability, internal switches, and surface mount packaging. However, differences in supply voltage range, output current capability, and product status must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

CL330SG-G (Primary Selection): The CL330SG-G remains the preferred choice for new designs and ongoing production. This part maintains active product status with robust inventory availability (5483 units in stock). It provides the widest supply voltage operating range (6.5V to 90V), making it suitable for diverse application requirements. Full RoHS3 compliance and REACH unaffected status ensure regulatory alignment. The combination of analog and PWM dimming modes offers maximum design flexibility.

TLD1312ELXUMA1 (Substitute Consideration): The TLD1312ELXUMA1 qualifies as a functional substitute only when the CL330SG-G becomes unavailable. This Infineon part carries obsolete product status, indicating limited future availability and potential supply discontinuation. The narrower supply voltage range (5.5V to 40V maximum) restricts its applicability to lower-voltage systems compared to the CL330SG-G. The higher output current capability (120mA per channel versus 30mA) exceeds the CL330SG-G specifications and may introduce thermal design considerations. The package change from 8-SOIC to 14-LSSOP requires PCB layout modification. Use of this substitute should be limited to applications where supply constraints force substitution and where the electrical and mechanical differences can be accommodated through design revision.

Frequently Asked Questions (FAQ)

Q: Can the TLD1312ELXUMA1 directly replace the CL330SG-G without PCB modifications?

A: No. The TLD1312ELXUMA1 uses a 14-LSSOP package while the CL330SG-G uses an 8-SOIC package. PCB layout changes are required, including different pad patterns, trace routing, and potentially different thermal management approaches. Pin-to-pin compatibility cannot be assumed.

Q: What are the key electrical differences between these parts?

A: The primary differences are: (1) Supply voltage range—CL330SG-G operates from 6.5V to 90V while TLD1312ELXUMA1 operates from 5.5V to 40V; (2) Output current—CL330SG-G provides 30mA per channel while TLD1312ELXUMA1 provides 120mA per channel; (3) Dimming modes—CL330SG-G supports both analog and PWM dimming while TLD1312ELXUMA1 supports PWM only; (4) Operating temperature—TLD1312ELXUMA1 extends to 150°C versus 119°C for CL330SG-G.

Q: Why is the TLD1312ELXUMA1 marked as obsolete?

A: Obsolete status indicates that Infineon has discontinued active production and support for this part. Existing inventory may be available through distributors, but future availability cannot be guaranteed. New designs should not incorporate obsolete components.

Q: Are both parts RoHS compliant?

A: Yes. Both the CL330SG-G and TLD1312ELXUMA1 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Which part should be selected for a new design?

A: The CL330SG-G should be selected for new designs. It maintains active product status, offers superior supply voltage range flexibility, and provides both analog and PWM dimming options. The TLD1312ELXUMA1 should only be considered if the CL330SG-G becomes unavailable and application requirements align with its narrower electrical specifications.

Q: Can the higher output current of the TLD1312ELXUMA1 be used as an advantage?

A: The 120mA per channel capability of the TLD1312ELXUMA1 exceeds the CL330SG-G specification of 30mA. However, this is not an advantage for direct substitution—it represents a different device class. Applications designed for 30mA operation do not benefit from 120mA capability and may experience thermal or power dissipation issues if the substitute is used without circuit redesign.