TPS3824-25QDBVRQ1 Equivalent & Substitute Parts

Part Overview

The TPS3824-25QDBVRQ1 is a single-channel power supply supervisor IC manufactured by Texas Instruments, designed for power-on reset and voltage monitoring applications. This device features push-pull totem pole output configuration and operates across automotive temperature ranges (-40°C to 125°C). The part is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

TPS3824-25QDBVRQ1

Texas InstrumentsIn Stock: 1174TPS3824-25QDBVRQ1 Datasheet

Current PartRFQ

TPS3824-25DBVR

Texas InstrumentsIn Stock: 31203TPS3824-25DBVR Datasheet

MFR RecommendedRFQ

APX824-23W5G-7

Diodes IncorporatedIn Stock: 4602APX824-23W5G-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TPS3824-25QDBVRQ1 is determined by the following critical parameters:

Primary Substitution Criteria:

• Single-channel voltage monitoring capability
• 2.25V voltage threshold setting
• Push-pull totem pole output configuration
• Active High/Active Low reset functionality
• Surface mount packaging (SC-74A, SOT-753 family)
• Minimum 120ms reset timeout
• RoHS3 compliance

Secondary Compatibility Factors:

• Operating temperature range (minimum -40°C to 85°C acceptable for most applications)
• Moisture sensitivity level (MSL 1 or equivalent)
• REACH compliance status

The TPS3824-25DBVR (Texas Instruments) and APX824-23W5G-7 (Diodes Incorporated) meet these substitution criteria. Both parts maintain identical voltage monitoring, threshold, output configuration, and reset characteristics while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

TPS3824-25DBVR (Primary Substitute): This Texas Instruments part maintains full functional equivalence with the obsolete TPS3824-25QDBVRQ1. Both devices share identical voltage monitoring parameters, threshold settings, and output characteristics. The TPS3824-25DBVR is currently in active production status with substantial inventory availability (31,187 units). Operating temperature range is reduced to -40°C to 85°C, which is acceptable for most commercial and industrial applications. This part is recommended as the first-choice substitute for direct replacement in existing designs.

APX824-23W5G-7 (Alternative Substitute): The Diodes Incorporated APX824-23W5G-7 provides functional equivalence across all critical monitoring and reset parameters. This part maintains the 2.25V threshold, push-pull totem pole output, and active high/active low reset configuration. The reset timeout specification is 140ms minimum, which exceeds the original 120ms requirement. Operating temperature range matches the TPS3824-25DBVR at -40°C to 85°C. This part is suitable for applications where design flexibility permits minor timing parameter variations and offers an alternative supply source through Diodes Incorporated.

Both substitute parts carry ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can the TPS3824-25DBVR directly replace the TPS3824-25QDBVRQ1 in existing designs?

A: Yes. The TPS3824-25DBVR is functionally equivalent across all critical parameters: voltage threshold (2.25V), output configuration (push-pull totem pole), reset type (active high/active low), and reset timeout (120ms minimum). Both parts use identical SC-74A SOT-753 packaging. The primary difference is product status (active vs. obsolete) and operating temperature range (-40°C to 85°C vs. -40°C to 125°C). For applications operating within -40°C to 85°C, direct substitution is valid.

Q: What is the difference between the TPS3824-25DBVR and APX824-23W5G-7?

A: Both parts meet the core substitution criteria for voltage monitoring, threshold, and output configuration. The key differences are: (1) Manufacturer—Texas Instruments vs. Diodes Incorporated; (2) Reset timeout—120ms minimum vs. 140ms minimum; (3) Supplier device package designation—SOT-23-5 vs. SOT-25, though both use SC-74A SOT-753 physical packaging. The APX824-23W5G-7 is suitable when design specifications permit the longer reset timeout.

Q: Are there temperature range limitations when substituting these parts?

A: The TPS3824-25QDBVRQ1 operates from -40°C to 125°C. Both substitute parts (TPS3824-25DBVR and APX824-23W5G-7) operate from -40°C to 85°C. If your application requires operation above 85°C, neither substitute is suitable. For applications within -40°C to 85°C, substitution is valid.

Q: Do the substitute parts maintain the same packaging footprint?

A: Yes. All three parts use SC-74A SOT-753 physical packaging, ensuring identical PCB footprint and mounting compatibility. The supplier device package designations (SOT-23-5 vs. SOT-25) refer to the same physical form factor and are interchangeable for board-level assembly.

Q: Are there any compliance or regulatory differences between these parts?

A: No. All three parts are ROHS3 compliant and REACH unaffected. Moisture sensitivity level is MSL 1 (unlimited) for all parts. ECCN and HTSUS classifications are identical across all three components.

Q: What inventory considerations should guide part selection?

A: The TPS3824-25DBVR has the highest current inventory (31,187 units), followed by APX824-23W5G-7 (4,500 units). The original TPS3824-25QDBVRQ1 has limited stock (1,120 units) and obsolete status. For new designs and ongoing production, the TPS3824-25DBVR is recommended based on availability and active product status.