ULQ2004ADR Equivalent & Substitute Parts

Part Overview

The ULQ2004ADR is a Power Management IC (PMIC) manufactured by Texas Instruments, classified as a Power Switch/Driver with 1:1 NPN configuration rated for 500mA output at 50V maximum load voltage. This component is designated as Last Time Buy, indicating discontinued production status. The ULQ2004ADR features 7 NPN outputs in low-side configuration with inverting parallel interface, housed in a 16-SOIC surface mount package. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and legacy system support.

Substiute Parts

ULQ2004ADR

Texas InstrumentsIn Stock: 57926ULQ2004ADR Datasheet

Current PartRFQ

ULN2004ADR

Texas InstrumentsIn Stock: 80279ULN2004ADR Datasheet

MFR RecommendedRFQ

MC1413BDR2G

onsemiIn Stock: 150344MC1413BDR2G Datasheet

DirectRFQ

ULN2001D1013TR

STMicroelectronicsIn Stock: 24841ULN2001D1013TR Datasheet

DirectRFQ

ULN2002D1013TR

STMicroelectronicsIn Stock: 72112ULN2002D1013TR Datasheet

DirectRFQ

ULN2003D1013TR

STMicroelectronicsIn Stock: 1787225ULN2003D1013TR Datasheet

DirectRFQ

ULN2004D1013TR

STMicroelectronicsIn Stock: 54649ULN2004D1013TR Datasheet

DirectRFQ

ULQ2003ADR2G

onsemiIn Stock: 32887ULQ2003ADR2G Datasheet

DirectRFQ

ULQ2003D1013TR

STMicroelectronicsIn Stock: 51093ULQ2003D1013TR Datasheet

UpgradeRFQ

ULQ2004D1013TR

STMicroelectronicsIn Stock: 5396ULQ2004D1013TR Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ULQ2004ADR is determined by strict alignment of the following critical parameters:

• Number of Outputs: 7 channels required
• Output Type: NPN configuration
• Ratio - Input:Output: 1:1 relationship
• Output Configuration: Low Side topology
• Voltage - Load (Max): 50V rating
• Current - Output (Max): 500mA capability
• Package / Case: 16-SOIC form factor
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts are grouped into three categories based on manufacturer and product status: MFR Recommended (active production alternative from original manufacturer), Direct Manufacturer (functionally equivalent from alternative manufacturers), and Upgrade (enhanced specifications with extended operating temperature range).

Parameter Comparison

Engineering Selection Recommendations

ULN2004ADR (Texas Instruments) is the primary recommended substitute, maintaining original manufacturer continuity with active production status. This part is functionally identical to the ULQ2004ADR across all critical electrical and mechanical parameters, with the exception of operating temperature range limited to -40°C ~ 70°C versus the original -40°C ~ 85°C specification.

ULN2001D1013TR, ULN2002D1013TR, and ULN2004D1013TR (STMicroelectronics) provide direct functional equivalence with full -40°C ~ 85°C operating temperature range matching the original specification. These parts maintain identical electrical ratings and 16-SOIC packaging.

ULQ2003ADR2G (onsemi) offers Darlington output configuration with full temperature range compatibility, suitable for applications requiring higher current gain characteristics.

ULQ2003D1013TR and ULQ2004D1013TR (STMicroelectronics) provide Darlington output variants with extended junction temperature rating to 150°C (TJ), enabling operation in higher thermal environments while maintaining all other electrical and mechanical specifications.

MC1413BDR2G (onsemi) is a Darlington transistor array alternative with identical electrical ratings and 16-SOIC packaging, classified as a discrete transistor component rather than an integrated PMIC.

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can ULN2004ADR directly replace ULQ2004ADR in all applications?

A: ULN2004ADR is functionally equivalent across all critical parameters with one exception: operating temperature range is limited to -40°C ~ 70°C compared to the original -40°C ~ 85°C. For applications operating within -40°C ~ 70°C, direct substitution is valid. For applications requiring full -40°C ~ 85°C range, select ULN2001D1013TR, ULN2002D1013TR, or ULN2004D1013TR.

Q: What is the difference between NPN and Darlington output types in these substitutes?

A: NPN output types (ULQ2004ADR, ULN2004ADR, ULN2001D1013TR, ULN2002D1013TR, ULN2004D1013TR) provide standard transistor switching characteristics. Darlington output types (ULQ2003ADR2G, ULN2003D1013TR, ULQ2003D1013TR, ULQ2004D1013TR, MC1413BDR2G) provide higher current gain and lower saturation voltage, suitable for low-signal-level drive applications.

Q: Are all substitute parts available in 16-SOIC packaging?

A: Yes. All listed substitute parts are housed in 16-SOIC (0.154", 3.90mm Width) surface mount packages, ensuring mechanical and electrical compatibility with ULQ2004ADR PCB layouts.

Q: Which substitute offers the widest operating temperature range?

A: ULQ2003D1013TR and ULQ2004D1013TR provide the highest operating temperature capability with 150°C junction temperature (TJ) rating, compared to -40°C ~ 85°C ambient temperature range of the original part.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity level, meeting current environmental and manufacturing standards.

Q: What is the inventory status of substitute parts?

A: ULN2004ADR (80,213 pcs), ULN2003D1013TR (1,787,200 pcs), and MC1413BDR2G (150,300 pcs) maintain the highest inventory levels. ULQ2004D1013TR has the lowest availability at 5,316 pcs.