TLE4242GATMA1 LED Driver IC Equivalent & Substitute Parts

Part Overview

The TLE4242GATMA1 is a linear LED driver IC manufactured by Infineon Technologies, designed for single-output PWM dimming applications with a maximum output current of 500mA. This device operates across a wide supply voltage range of 4.5V to 42V and is housed in a TO-263-7 package suitable for surface mount applications.

The TLE4242GATMA1 is classified as obsolete, making it necessary to identify equivalent and substitute parts for new designs or production continuity. Substitute parts must maintain compatibility with the original electrical specifications and mechanical form factor while offering active product status or extended availability.

Key Parameters

Parameter	TLE4242GATMA1
Manufacturer	Infineon Technologies
Category	Power Management (PMIC)
Type	Linear LED Driver
Number of Outputs	1
Voltage - Supply (Min)	4.5V
Voltage - Supply (Max)	42V
Voltage - Output	40V
Current - Output / Channel	500mA
Dimming	PWM
Internal Switch(s)	Yes
Operating Temperature	-40°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	TO-263-8, D2PAK (7 Leads + Tab), TO-263CA
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute parts for the TLE4242GATMA1 are evaluated based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

Single output configuration
Linear driver topology with internal switching capability
PWM dimming functionality
Output current capability of 500mA or greater
Supply voltage range compatibility (minimum 4.5V, maximum 40V or higher)
Surface mount packaging
Operating temperature range of -40°C or lower to 125°C or higher

Secondary Compatibility Factors:

Package form factor (TO-263 preferred for direct replacement; alternative packages acceptable with PCB redesign)
Moisture sensitivity level MSL 1-3
RoHS3 compliance and REACH unaffected status

Substitutes are grouped into two categories: direct replacements within the Infineon LITIX™ series and cross-manufacturer alternatives that meet the electrical and thermal requirements.

Parameter Comparison

Parameter	TLE4242GATMA1	TLE4242GATMA3	STCS05ADR	AL5811MP-13	MIC4802YME	CL520N3-G	RT8456GE	STCS2ASPR
Manufacturer	Infineon	Infineon	STMicroelectronics	Diodes Inc.	Microchip	Microchip	Richtek	STMicroelectronics
Type	Linear	Linear	Linear	Linear	Linear	Linear	Linear	Linear
Number of Outputs	1	1	1	1	1	1	1	1
Voltage - Supply (Min)	4.5V	4.5V	4.5V	3.5V	3V	4.75V	4.75V	4.5V
Voltage - Supply (Max)	42V	42V	40V	60V	5.5V	90V	48V	40V
Current - Output / Channel	500mA	500mA	500mA	75mA	800mA	20mA	—	2A
Dimming	PWM	PWM	PWM	PWM	PWM	—	—	PWM
Internal Switch(s)	Yes	Yes	Yes	Yes	Yes	—	Yes	Yes
Operating Temperature	-40°C ~ 150°C	-40°C ~ 150°C	-40°C ~ 150°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Through Hole	Surface Mount	Surface Mount
Package / Case	TO-263-8, D2PAK	TO-263-8, D2PAK	8-SOIC	8-MSOP-EP	8-SOIC-EP	TO-92-3	SOT-23-6	10-PowerSO
Product Status	Obsolete	Last Time Buy	Active	Active	Active	Active	Active	Active
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1	1	1	1	2	1	3	3
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Direct Replacement (Same Series): TLE4242GATMA3 is the primary direct substitute within the Infineon LITIX™ series. It maintains identical electrical specifications (4.5V to 42V supply, 500mA output, PWM dimming) and package form factor (TO-263-8, D2PAK). The TLE4242GATMA3 carries active Last Time Buy status with ROHS3 compliance, providing a seamless transition path for existing designs.

High-Current Alternative: STCS2ASPR (STMicroelectronics) provides 2A output current capability within a 4.5V to 40V supply range, suitable for applications requiring higher LED current density. This part maintains PWM dimming functionality and operates across the full -40°C to 125°C temperature range. The 10-PowerSO package requires PCB layout modification but offers superior thermal performance through an exposed bottom pad.

Standard Current Replacement: STCS05ADR (STMicroelectronics) matches the 500mA output specification and 4.5V to 40V supply range with PWM dimming capability. Housed in an 8-SOIC package, this part is actively produced with ROHS3 compliance and MSL 1 rating. Package footprint differs from the original TO-263, requiring PCB redesign.

Lower Current Applications: AL5811MP-13 (Diodes Incorporated) and MIC4802YME (Microchip) serve applications where 500mA output is not required. AL5811MP-13 provides 75mA with extended 3.5V to 60V supply range in an 8-MSOP-EP package. MIC4802YME delivers 800mA in a compact 8-SOIC-EP package but operates within a restricted 3V to 5.5V supply window.

Compliance Status: All recommended substitutes carry ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. Moisture sensitivity levels range from MSL 1 to MSL 3; applications requiring unlimited shelf life should prioritize MSL 1 rated parts (TLE4242GATMA3, STCS05ADR, AL5811MP-13, CL520N3-G).

Frequently Asked Questions (FAQ)

Q: Can TLE4242GATMA3 be used as a direct drop-in replacement for TLE4242GATMA1?

A: Yes. TLE4242GATMA3 maintains identical electrical specifications (4.5V to 42V supply voltage, 500mA output current, PWM dimming) and uses the same TO-263-8 D2PAK package. No circuit redesign is required. The primary difference is product status: TLE4242GATMA3 is Last Time Buy rather than obsolete, providing extended availability.

Q: What is the key difference between STCS05ADR and the original TLE4242GATMA1?

A: STCS05ADR matches the 500mA output current and 4.5V to 40V supply range with PWM dimming. The primary difference is packaging: STCS05ADR uses an 8-SOIC form factor instead of TO-263-8 D2PAK. This requires PCB layout modification but maintains full electrical compatibility.

Q: Why does CL520N3-G have lower output current (20mA) than the original part?

A: CL520N3-G is a lower-power linear LED driver designed for signage and lighting applications with reduced current requirements. It is not suitable for applications requiring 500mA output. This part is listed as a cross-reference but does not provide functional equivalence for high-current LED driving.

Q: Is MIC4802YME compatible with the original 42V maximum supply voltage?

A: No. MIC4802YME operates within a 3V to 5.5V supply range, making it incompatible with applications requiring the original 4.5V to 42V range. This part is suitable only for low-voltage LED driver applications and should not be selected for high-voltage designs.

Q: What are the thermal operating range differences between substitutes?

A: The original TLE4242GATMA1 operates from -40°C to 150°C (junction temperature). Most substitutes operate from -40°C to 125°C. Applications requiring operation above 125°C should retain the original Infineon parts (TLE4242GATMA1 or TLE4242GATMA3) or confirm thermal specifications with alternative manufacturers.

Q: Do all substitute parts have the same moisture sensitivity level?

A: No. TLE4242GATMA3, STCS05ADR, AL5811MP-13, and CL520N3-G carry MSL 1 (unlimited shelf life). MIC4802YME carries MSL 2 (1 year), and RT8456GE and STCS2ASPR carry MSL 3 (168 hours). Applications with extended storage requirements should prioritize MSL 1 rated parts.

Q: Can STCS2ASPR replace TLE4242GATMA1 in existing designs?

A: STCS2ASPR provides 2A output current (versus 500mA) within the same 4.5V to 40V supply range with PWM dimming. The 10-PowerSO package differs significantly from TO-263-8, requiring complete PCB redesign. This part is suitable for new designs requiring higher current capability but not for direct replacement in existing layouts.

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