SC1302ESTRT Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The SC1302ESTRT is a low-side gate driver IC manufactured by Semtech Corporation, designed for driving N-Channel MOSFETs in power management applications. This device operates with a supply voltage range of 4.5V to 16.5V and delivers peak output currents of 2A (source and sink). The SC1302ESTRT is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

SC1302ESTRT

Semtech CorporationIn Stock: 1175SC1302ESTRT Datasheet

Current PartRFQ

FAN3226TMX

onsemiIn Stock: 18549FAN3226TMX Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SC1302ESTRT is determined by strict alignment of the following critical parameters:

Mandatory Compatibility Criteria:

• Driven Configuration: Low-Side
• Number of Drivers: 2
• Gate Type: N-Channel MOSFET
• Input Type: Inverting
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Operating Temperature Range: -40°C ~ 125°C minimum

Electrical Performance Parameters:

• Supply Voltage Range: Must encompass or exceed 4.5V ~ 16.5V
• Peak Output Current (Source, Sink): Must meet or exceed 2A / 2A
• Logic Voltage Thresholds (VIL, VIH): 0.8V / 2V

The FAN3226TMX from onsemi satisfies all mandatory compatibility criteria and exceeds electrical performance specifications, making it a direct substitute for the obsolete SC1302ESTRT.

Parameter Comparison

Engineering Selection Recommendations

The FAN3226TMX is the recommended substitute for the obsolete SC1302ESTRT based on the following factors:

Product Status: The FAN3226TMX maintains active product status with onsemi, ensuring long-term availability and continued manufacturing support. The SC1302ESTRT's obsolete classification necessitates transition to an alternative solution.

Compliance & Certifications: The FAN3226TMX is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components in most markets. Both devices share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.

Electrical Performance: The FAN3226TMX exceeds the SC1302ESTRT specifications across all critical parameters. Supply voltage range extends to 18V (versus 16.5V), peak output current increases to 3A (versus 2A), and switching times improve to 12ns/9ns (versus 20ns/20ns). These enhancements provide design margin and improved performance without requiring circuit modifications.

Package Compatibility: Both devices utilize identical 8-SOIC packaging with 0.154" (3.90mm) width, enabling direct PCB footprint compatibility and straightforward component replacement.

Frequently Asked Questions (FAQ)

Q: Can the FAN3226TMX directly replace the SC1302ESTRT without PCB modifications?

A: Yes. Both devices share identical 8-SOIC packaging dimensions and pinout compatibility for low-side gate driver applications. No PCB layout changes are required.

Q: What are the key differences between these two gate drivers?

A: The FAN3226TMX provides enhanced electrical performance with higher peak output current (3A versus 2A), faster switching times (12ns/9ns versus 20ns/20ns), and extended supply voltage range (4.5V ~ 18V versus 4.5V ~ 16.5V). The FAN3226TMX maintains active product status while the SC1302ESTRT is obsolete.

Q: Are there any thermal or operating temperature considerations?

A: Both devices operate across the identical temperature range of -40°C to 125°C. The SC1302ESTRT specifies junction temperature (TJ) while the FAN3226TMX specifies ambient temperature (TA). Both maintain MSL 1 (unlimited moisture sensitivity level).

Q: Does the FAN3226TMX meet current regulatory requirements?

A: Yes. The FAN3226TMX is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component procurement.

Q: What is the supply voltage compatibility range?

A: The SC1302ESTRT operates from 4.5V to 16.5V. The FAN3226TMX extends this range to 4.5V to 18V, providing additional design flexibility for higher voltage applications while maintaining full compatibility with existing 4.5V ~ 16.5V designs.

Q: Are logic input voltage thresholds identical?

A: Yes. Both devices maintain identical logic voltage thresholds of VIL = 0.8V and VIH = 2V, ensuring compatible signal conditioning and control circuit requirements.