TPS3840PL29DBVRQ1 Equivalent & Substitute Parts

Part Overview

The TPS3840PL29DBVRQ1 is an automotive-grade power management integrated circuit (PMIC) functioning as a supervisor with push-pull output configuration. This device monitors a single voltage threshold and provides active-low reset signaling with a typical timeout of 619ms. The part is classified as a Simple Reset/Power-On Reset supervisor designed for automotive applications requiring AEC-Q100 qualification. The TPS3840PL29DBVRQ1 maintains Active status with 4114 units in current inventory. Substitute parts are identified when equivalent electrical parameters, mechanical packaging, and automotive qualification requirements are met.

Substiute Parts

TPS3840PL29DBVRQ1

Texas InstrumentsIn Stock: 4128TPS3840PL29DBVRQ1 Datasheet

Current PartRFQ

TPS3840PL29DBVR

Texas InstrumentsIn Stock: 1577TPS3840PL29DBVR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TPS3840PL29DBVRQ1 are identified based on strict equivalence of the following critical parameters:

Electrical Equivalence Criteria:

• Single voltage monitoring channel
• 2.9V voltage threshold
• Push-Pull, Totem Pole output configuration
• Active Low reset logic
• 619ms typical reset timeout

Mechanical & Packaging Equivalence Criteria:

• SC-74A / SOT-753 package footprint
• SOT-23-5 supplier device package
• Surface mount mounting type

Compliance & Grade Equivalence Criteria:

• Automotive grade classification
• AEC-Q100 qualification
• ROHS3 compliance
• MSL 1 rating
• REACH Unaffected status
• Active product status

The TPS3840PL29DBVRQ1 differs from its substitute only in qualification suffix designation (Q1 indicates automotive qualification level). The base electrical and mechanical specifications remain identical across the substitute relationship.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (TPS3840PL29DBVRQ1): The TPS3840PL29DBVRQ1 is the recommended selection for automotive applications requiring explicit AEC-Q100 qualification. This part carries automotive-grade designation and maintains the highest inventory availability at 4114 units. Use this part number when design specifications mandate automotive qualification documentation.

Substitute Selection (TPS3840PL29DBVR): The TPS3840PL29DBVR provides electrical and mechanical equivalence with identical functional parameters. This part is suitable when automotive qualification suffix is not a contractual or design requirement. Current inventory of 1478 units supports medium-volume applications. Both parts share identical electrical performance, package footprint, and compliance certifications where specified.

Inventory Considerations: The primary part maintains higher stock levels. The substitute part provides an alternative source when primary part availability is constrained.

Frequently Asked Questions (FAQ)

Q: Are TPS3840PL29DBVRQ1 and TPS3840PL29DBVR electrically identical?

A: Yes. Both parts provide identical electrical function: single-channel voltage supervision at 2.9V threshold, push-pull totem pole output, active-low reset logic, and 619ms typical reset timeout. The difference lies in qualification designation, not electrical performance.

Q: Can TPS3840PL29DBVR replace TPS3840PL29DBVRQ1 in automotive applications?

A: Electrical and mechanical substitution is possible. However, the TPS3840PL29DBVRQ1 carries explicit AEC-Q100 automotive qualification. Design specifications, procurement requirements, or customer contracts may mandate the Q1-designated part. Verify qualification requirements before substitution.

Q: Are the packages identical?

A: Yes. Both parts use SC-74A / SOT-753 package footprint with SOT-23-5 supplier device package designation. Surface mount assembly processes and PCB layouts are identical.

Q: What is the significance of the "Q1" suffix in TPS3840PL29DBVRQ1?

A: The Q1 suffix indicates automotive qualification level per AEC-Q100 standard. This designation confirms the part meets automotive industry reliability and testing requirements.

Q: Do both parts meet RoHS and REACH compliance?

A: Yes. Both parts are ROHS3 compliant and REACH Unaffected. MSL rating is 1 (Unlimited) for both parts.

Q: What is the operating temperature range for both parts?

A: Both parts operate across -40°C to 125°C junction temperature range, suitable for automotive environmental conditions.

Q: Which part should be selected for new designs?

A: For new automotive designs, select TPS3840PL29DBVRQ1 to ensure explicit AEC-Q100 qualification documentation. For non-automotive applications or when qualification is not required, either part is suitable based on availability.