TS19830CS RLG LED Driver IC Equivalent & Substitute Parts

Part Overview

The TS19830CS RLG is an LED Driver IC manufactured by Taiwan Semiconductor Corporation, classified as a Power Management (PMIC) component. This device functions as a 1-output AC DC offline switcher with buck and boost topology capabilities, designed for lighting applications with triac dimming support. The part operates at 2.6mA output current and 4.5kHz frequency across a supply voltage range up to 33V.

The TS19830CS RLG is designated as obsolete. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production requirements for lighting applications requiring offline LED driver functionality.

Substiute Parts

TS19830CS RLG

Taiwan Semiconductor CorporationIn Stock: 691TS19830CS RLG Datasheet

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LT3799EMSE-1#TRPBF

Analog Devices Inc.In Stock: 5859LT3799EMSE-1#TRPBF Datasheet

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MP4060GK-Z

Monolithic Power Systems Inc.In Stock: 974MP4060GK-Z Datasheet

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MP4088GJ-Z

Monolithic Power Systems Inc.In Stock: 1173MP4088GJ-Z Datasheet

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MP4088GN

Monolithic Power Systems Inc.In Stock: 834MP4088GN Datasheet

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MP4088GS-Z

Monolithic Power Systems Inc.In Stock: 4748MP4088GS-Z Datasheet

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RT7302GS

Richtek USA Inc.In Stock: 8548RT7302GS Datasheet

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TPS92075DDC/NOPB

Texas InstrumentsIn Stock: 1840TPS92075DDC/NOPB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete TS19830CS RLG is determined by alignment of the following critical parameters:

Primary Substitution Criteria:

• Type: AC DC Offline Switcher
• Topology: Buck, Boost (or compatible topologies including Flyback)
• Number of Outputs: 1
• Dimming: Triac
• Applications: Lighting
• Operating Temperature Range: -40°C ~ 125°C (TJ)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

Secondary Compatibility Factors:

• Package / Case: 8-SOIC form factor preferred for direct mechanical compatibility
• Voltage - Supply (Max): 33V or higher
• Current - Output / Channel: 2.6mA or higher
• Frequency: 4.5kHz or higher

Substitute parts are grouped based on topology variations (Flyback, Buck/Boost combinations) and package options (8-SOIC, 10-MSOP, 16-MSOP, SOT-23 variants). All substitute parts maintain active product status, ROHS3 compliance, and triac dimming capability.

Parameter Comparison

Engineering Selection Recommendations

Direct Package-Compatible Substitutes (8-SOIC Form Factor):

MP4088GS-Z and RT7302GS maintain the 8-SOIC package footprint identical to the TS19830CS RLG, enabling direct PCB layout compatibility. Both parts are active products with ROHS3 compliance. MP4088GS-Z operates at 4.5V supply with 22kHz frequency and triac dimming for lighting applications. RT7302GS operates at 12V to 25V supply with PWM dimming and supports multiple topologies (Flyback, Buck, Boost).

Topology-Matched Substitutes (Buck/Boost Configuration):

MP4060GK-Z and TPS92075DDC/NOPB maintain buck and boost topology alignment with the original part. MP4060GK-Z accepts 200VAC to 265VAC input with triac dimming for lighting. TPS92075DDC/NOPB operates at 11V to 18V supply with triac dimming in SOT-23-6 thin package.

Extended Topology Compatibility (Flyback Alternative):

LT3799EMSE-1#TRPBF provides flyback topology with triac dimming in 16-MSOP package. This part offers the widest frequency range (25kHz to 300kHz) and superior moisture sensitivity (MSL 1, Unlimited) compared to the original part's MSL 3 rating.

Selection Basis:

All substitute parts maintain active product status, ensuring ongoing availability and manufacturing support. All parts comply with ROHS3 and REACH requirements. Operating temperature range (-40°C to 125°C) is consistent across all options. Selection should prioritize package compatibility requirements and specific voltage/frequency operating conditions of the target application.

Frequently Asked Questions (FAQ)

Q: Can MP4088GS-Z directly replace TS19830CS RLG without PCB modifications?

A: MP4088GS-Z shares the 8-SOIC package footprint with TS19830CS RLG, enabling direct PCB placement compatibility. However, electrical parameter differences (4.5V supply vs. 33V maximum, 22kHz vs. 4.5kHz frequency) require circuit design verification before implementation.

Q: What is the primary difference between triac dimming and PWM dimming options?

A: Triac dimming (TS19830CS RLG, MP4088GS-Z, MP4060GK-Z, LT3799EMSE-1#TRPBF, TPS92075DDC/NOPB) interfaces with AC line triac dimmers for phase-cut dimming control. PWM dimming (RT7302GS) uses pulse-width modulation for brightness control. Application requirements determine which dimming method is appropriate.

Q: Why does LT3799EMSE-1#TRPBF use a 16-MSOP package instead of 8-SOIC?

A: The 16-MSOP package accommodates additional integrated functions and improved thermal management through the exposed pad design. This package change requires PCB layout redesign but provides enhanced performance characteristics including wider frequency range (25kHz to 300kHz) and superior moisture sensitivity rating (MSL 1 vs. MSL 3).

Q: Are all substitute parts suitable for the same lighting applications as TS19830CS RLG?

A: All substitute parts are classified as AC DC offline switchers for lighting applications with triac dimming capability, except RT7302GS which uses PWM dimming. Specific application compatibility depends on voltage supply requirements, frequency specifications, and dimming control interface matching.

Q: What does ROHS3 compliance indicate for component selection?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. All listed substitute parts maintain ROHS3 compliance, ensuring regulatory alignment with the original TS19830CS RLG.

Q: How does moisture sensitivity level (MSL) affect component handling?

A: MSL rating indicates maximum exposure time to moisture before soldering. TS19830CS RLG and RT7302GS carry MSL 3 (168 hours), requiring controlled storage. LT3799EMSE-1#TRPBF, MP4060GK-Z, and TPS92075DDC/NOPB carry MSL 1 (unlimited), providing more flexible storage and handling conditions.

Q: Can RT7302GS substitute for TS19830CS RLG in triac dimmer applications?

A: RT7302GS uses PWM dimming rather than triac dimming, making it unsuitable for direct replacement in applications requiring triac phase-cut dimming control. Selection of triac-compatible alternatives (MP4088GS-Z, MP4060GK-Z, LT3799EMSE-1#TRPBF, TPS92075DDC/NOPB) is required for triac dimmer compatibility.