TS19452CS RLG LED Driver IC Equivalent & Substitute Parts

Part Overview

The TS19452CS RLG is an AC DC offline switcher LED driver IC manufactured by Taiwan Semiconductor Corporation, designed for lighting applications requiring a single output with 100mA current capability. This device operates across a wide input voltage range of 20V to 400V and features an internal switch for step-down (buck) topology conversion. The part is currently in active production status with 825 units in stock.

Substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain disruptions, or end-of-life considerations for the primary component. The substitute parts listed maintain compatibility through equivalent packaging, similar operational characteristics, and alignment with the same application category.

Substiute Parts

TS19452CS RLG

Taiwan Semiconductor CorporationIn Stock: 900TS19452CS RLG Datasheet

Current PartRFQ

AL9910S-13

Diodes IncorporatedIn Stock: 13831AL9910S-13 Datasheet

SimilarRFQ

MP4030GS

Monolithic Power Systems Inc.In Stock: 2374MP4030GS Datasheet

SimilarRFQ

TPS92002DR

Texas InstrumentsIn Stock: 1152TPS92002DR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TS19452CS RLG is determined by the following critical parameters:

Primary Compatibility Criteria:

• Package / Case: 8-SOIC (0.154", 3.90mm Width) form factor
• Mounting Type: Surface Mount
• Category: Power Management (PMIC) - LED Driver IC
• Type: AC DC Offline Switcher
• Number of Outputs: 1
• Applications: Lighting
• RoHS Status: ROHS3 Compliant

Secondary Compatibility Considerations:

• Operating Temperature Range: -40°C minimum to 85°C maximum
• Voltage Supply Range: Minimum 20V to maximum 400V input capability
• Current Output Capability: 100mA per channel

The three substitute parts identified (AL9910S-13, MP4030GS, TPS92002DR) share the identical 8-SOIC package footprint and surface mount configuration, enabling direct PCB layout compatibility. All substitute parts operate within the lighting application domain and maintain ROHS3 compliance. Variations in topology (buck, boost, flyback), internal switch configuration, and dimming methodology represent design trade-offs that must be evaluated against specific circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

TS19452CS RLG (Primary Component) Active production status with 825 units in current inventory. ROHS3 compliant with MSL 3 rating. Recommended for new designs where supply availability is not a constraint and the step-down buck topology meets circuit requirements.

AL9910S-13 (Diodes Incorporated) Active production status with highest inventory availability (13,800 units). Supports both step-down and step-up topologies, providing design flexibility beyond the primary part. MSL 1 rating indicates superior moisture tolerance. Suitable for applications requiring extended shelf life or variable topology requirements. Frequency range of 25kHz to 300kHz enables optimization for specific EMI performance targets.

MP4030GS (Monolithic Power Systems Inc.) Active production status with 2,300 units available. Operates at lower supply voltage range (11V to 27V), limiting applicability to high-voltage input scenarios. Extended operating temperature range to 125°C (TJ) supports thermal-demanding environments. Flyback topology and triac dimming capability address specific lighting control requirements. MSL 2 rating provides intermediate moisture sensitivity performance.

TPS92002DR (Texas Instruments) Last Time Buy status indicates this component is approaching end-of-life. Inventory of 1,085 units represents limited availability. Suitable only for legacy design maintenance or short-term production runs. Maximum supply voltage of 21V restricts application to low-voltage input designs. ROHS3 compliant with MSL 1 rating. Not recommended for new product development.

Frequently Asked Questions (FAQ)

Q: Can AL9910S-13 directly replace TS19452CS RLG in existing PCB layouts? A: Yes. Both components use identical 8-SOIC (0.154", 3.90mm Width) packaging with surface mount configuration. PCB footprints are mechanically compatible. Circuit-level validation is required to confirm topology differences (buck vs. buck/boost) do not conflict with application requirements.

Q: What is the primary difference between TS19452CS RLG and MP4030GS? A: The TS19452CS RLG uses step-down (buck) topology with internal switching and operates across 20V to 400V input range. The MP4030GS uses flyback topology without internal switching and operates across 11V to 27V input range. These topological differences require distinct circuit designs and are not interchangeable without schematic modification.

Q: Is TPS92002DR suitable for new product designs? A: No. TPS92002DR carries Last Time Buy status, indicating discontinued production. This component is appropriate only for sustaining existing products or short-term production requirements. New designs should utilize AL9910S-13 or TS19452CS RLG for long-term supply assurance.

Q: How do dimming capabilities differ among these parts? A: TS19452CS RLG supports dimming functionality (specific method not detailed in specifications). AL9910S-13 supports analog and PWM dimming with frequency range 25kHz to 300kHz. MP4030GS and TPS92002DR support triac dimming. Selection depends on the dimming control interface required by the lighting system.

Q: What does MSL rating indicate for component handling? A: Moisture Sensitivity Level (MSL) specifies maximum storage duration at specified humidity before component degradation. TS19452CS RLG (MSL 3, 168 hours) requires more careful moisture control than AL9910S-13 (MSL 1, unlimited). MP4030GS (MSL 2, 1 year) provides intermediate moisture tolerance. Higher MSL numbers indicate greater sensitivity to moisture exposure.

Q: Can these parts operate at the full 400V input voltage specified for TS19452CS RLG? A: No. AL9910S-13 supports up to 500V (compatible). MP4030GS supports maximum 27V (not compatible with 400V input). TPS92002DR supports maximum 21V (not compatible with 400V input). Input voltage range compatibility must be verified for each substitute part against specific application requirements.

Q: Are all substitute parts ROHS3 compliant? A: Yes. TS19452CS RLG, AL9910S-13, MP4030GS, and TPS92002DR are all ROHS3 compliant. All parts are REACH unaffected and classified as EAR99 for export control purposes.