TPS3840PL40DBVR Equivalent & Substitute Parts

Part Overview

The TPS3840PL40DBVR is a nanopower high-input voltage supervisor manufactured by Texas Instruments, designed for power management applications requiring simple reset and power-on reset functionality. This device operates as a push-pull, totem pole output supervisor with active-low reset control, suitable for surface mount integration in compact form factors. The part maintains active product status with 1110 units in current inventory stock.

Identifying equivalent and substitute parts becomes necessary when addressing supply chain constraints, inventory availability, or application-specific requirements such as automotive qualification or extended operational certifications.

Substiute Parts

TPS3840PL40DBVR

Texas InstrumentsIn Stock: 1204TPS3840PL40DBVR Datasheet

Current PartRFQ

TPS3840PL40DBVRQ1

Texas InstrumentsIn Stock: 3763TPS3840PL40DBVRQ1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TPS3840PL40DBVR is determined by strict alignment across the following critical parameters:

• Functional Type: Simple Reset/Power-On Reset supervisor
• Number of Voltages Monitored: 1 channel
• Voltage Threshold: 4V
• Output Configuration: Push-Pull, Totem Pole
• Reset Logic: Active Low
• Reset Timeout: 619ms Typical
• Operating Temperature Range: -40°C ~ 125°C (TJ)
• Package / Case: SC-74A, SOT-753
• Supplier Device Package: SOT-23-5
• Mounting Type: Surface Mount
• RoHS Compliance: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

The TPS3840PL40DBVRQ1 qualifies as a parametric equivalent substitute, maintaining identical electrical specifications and mechanical compatibility while adding automotive-grade qualification under AEC-Q100 standards.

Parameter Comparison

Engineering Selection Recommendations

Both the TPS3840PL40DBVR and TPS3840PL40DBVRQ1 maintain identical electrical and mechanical specifications, ensuring direct functional interchangeability in applications requiring a 4V threshold, single-channel supervisor with push-pull output and active-low reset control.

The TPS3840PL40DBVRQ1 carries automotive-grade qualification under AEC-Q100 standards, making it the appropriate selection for automotive applications or systems requiring automotive-level reliability certification. Both parts maintain ROHS3 compliance and REACH unaffected status, supporting regulatory requirements across industrial and automotive markets.

Selection between these parts should be based on application requirements: use the TPS3840PL40DBVR for general industrial applications, or the TPS3840PL40DBVRQ1 for automotive or automotive-qualified system designs.

Frequently Asked Questions (FAQ)

Q: Can the TPS3840PL40DBVRQ1 replace the TPS3840PL40DBVR in existing designs?

A: Yes. The TPS3840PL40DBVRQ1 maintains identical electrical specifications, output configuration, reset timing, and package form factor. Direct substitution is electrically and mechanically compatible.

Q: What is the primary difference between these two parts?

A: The TPS3840PL40DBVRQ1 carries automotive-grade qualification under AEC-Q100 standards, while the TPS3840PL40DBVR is specified for industrial applications. Electrical and mechanical parameters are identical.

Q: Are both parts available in the same package?

A: Yes. Both parts use the SC-74A, SOT-753 package with SOT-23-5 supplier device package configuration, ensuring identical PCB footprint and mounting requirements.

Q: Do both parts meet the same compliance standards?

A: Both parts are ROHS3 compliant and REACH unaffected. The TPS3840PL40DBVRQ1 additionally carries AEC-Q100 automotive qualification.

Q: What is the reset timeout specification for both parts?

A: Both parts specify 619ms typical reset timeout, ensuring identical power-on reset behavior in circuit designs.

Q: Can these parts be used interchangeably in automotive applications?

A: The TPS3840PL40DBVRQ1 is the appropriate choice for automotive applications due to AEC-Q100 qualification. While the TPS3840PL40DBVR is electrically compatible, it lacks automotive-grade certification.