TPS3779DDBVR Equivalent & Substitute Parts

Part Overview

The TPS3779DDBVR is a multi-voltage supervisor IC manufactured by Texas Instruments, designed for power management applications requiring dual-channel voltage monitoring. This Surface Mount device operates across the industrial temperature range of -40°C to 125°C and features push-pull, totem pole output configuration with active low reset functionality. The part is ROHS3 compliant and currently in active production status with 620 units in stock.

Substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when automotive-grade qualification is mandated for specific applications.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Type	Multi-Voltage Supervisor
Number of Voltages Monitored	2
Voltage Threshold	Adjustable/Selectable
Output Configuration	Push-Pull, Totem Pole
Reset Type	Active Low
Operating Temperature Range	-40°C ~ 125°C (TJ)
Package / Case	SOT-23-6
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

All substitute parts for the TPS3779DDBVR share identical core electrical and mechanical parameters that define functional equivalence:

Critical Matching Parameters:

Manufacturer: Texas Instruments
Base Product Number: TPS3779
Type: Multi-Voltage Supervisor
Number of Voltages Monitored: 2
Voltage Threshold: Adjustable/Selectable
Output Configuration: Push-Pull, Totem Pole
Reset Type: Active Low
Operating Temperature Range: -40°C ~ 125°C
Package / Case: SOT-23-6
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Substitution differences are limited to:

Tape & Reel packaging format (TR designation)
Moisture Sensitivity Level (MSL 1 vs MSL 2)
Automotive qualification status (AEC-Q100 for Q-grade variants)

Parameter Comparison

Part Number	Packaging	MSL	Grade	Qualification	Inventory (Pcs)
TPS3779DDBVR	Tape & Reel (TR)	1 (Unlimited)	Industrial	—	620
TPS3779ADBVT	Tape & Reel (TR)	1 (Unlimited)	Industrial	—	1117
TPS3779BDBVT	Tape & Reel (TR)	1 (Unlimited)	Industrial	—	1272
TPS3779BQDBVRQ1	Tape & Reel (TR)	2 (1 Year)	Automotive	AEC-Q100	6300
TPS3779CDBVR	Tape & Reel (TR)	1 (Unlimited)	Industrial	—	787
TPS3779CDBVT	Tape & Reel (TR)	1 (Unlimited)	Industrial	—	1215
TPS3779CQDBVRQ1	Tape & Reel (TR)	2 (1 Year)	Automotive	AEC-Q100	851
TPS3779DDBVT	Tape & Reel (TR)	1 (Unlimited)	Industrial	—	1222

Engineering Selection Recommendations

For Industrial Applications (MSL 1): Select from TPS3779ADBVT, TPS3779BDBVT, TPS3779CDBVR, TPS3779CDBVT, or TPS3779DDBVT. These parts maintain unlimited moisture sensitivity classification and are suitable for standard manufacturing environments. Part availability ranges from 787 to 1272 units.

For Automotive Applications (AEC-Q100 Qualified): Select TPS3779BQDBVRQ1 or TPS3779CQDBVRQ1. These variants carry automotive-grade qualification and MSL 2 rating (1 Year). TPS3779BQDBVRQ1 offers the highest inventory availability at 6300 units.

Packaging Format Consideration: The suffix "R" indicates reel format, while "T" indicates tube format. Both are Tape & Reel packaging. Selection depends on manufacturing equipment compatibility and assembly line requirements.

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and identical electrical specifications for the TPS3779 supervisor function.

Frequently Asked Questions (FAQ)

Q: Can TPS3779DDBVR be directly replaced with TPS3779ADBVT? A: Yes. Both parts share identical electrical specifications, operating temperature range, package type (SOT-23-6), and functional parameters. The difference is in the internal grade designation (A vs D), which does not affect electrical performance or compatibility.

Q: What is the difference between MSL 1 and MSL 2 ratings? A: MSL 1 (Unlimited) allows indefinite storage without moisture baking requirements. MSL 2 (1 Year) requires moisture baking if the part has been stored for more than one year in standard humidity conditions. Automotive-qualified variants carry MSL 2 due to stricter qualification standards.

Q: Are automotive-qualified parts (AEC-Q100) backward compatible with industrial applications? A: Automotive-qualified parts exceed industrial requirements and are electrically compatible with industrial designs. However, they carry higher MSL requirements and should be selected only when automotive qualification is mandated by application specifications.

Q: Does the packaging suffix (R vs T) affect electrical performance? A: No. The R (reel) and T (tube) suffixes indicate only the physical packaging format for automated assembly. Electrical specifications and functional performance are identical. Selection should be based on manufacturing equipment compatibility.

Q: Can I substitute TPS3779DDBVR with TPS3779BQDBVRQ1 in a non-automotive application? A: Yes, electrically and functionally. However, automotive-qualified parts typically carry higher cost and stricter MSL requirements. Use automotive variants only when application requirements or supply chain constraints necessitate them.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the primary part's environmental compliance profile.

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