TPS3820-50DBVT Equivalent & Substitute Parts

Part Overview

The TPS3820-50DBVT is a single-channel power supply supervisor IC manufactured by Texas Instruments, designed for power-on reset and supervisory functions in embedded systems. This device monitors a single voltage rail and provides active-low reset output with push-pull, totem-pole configuration. The part is classified as Last Time Buy, indicating end-of-life status. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications currently using this supervisor IC.

Substiute Parts

TPS3820-50DBVT

Texas InstrumentsIn Stock: 3210TPS3820-50DBVT Datasheet

Current PartRFQ

TPS3820-50DBVR

Texas InstrumentsIn Stock: 4547TPS3820-50DBVR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The TPS3820-50DBVR qualifies as a parametric equivalent to the TPS3820-50DBVT based on the following substitution criteria:

Electrical Parameters Match:

• Single voltage monitoring channel
• Identical 4.55V threshold voltage
• Push-pull, totem-pole output configuration
• Active-low reset logic
• 15ms minimum reset timeout
• Identical operating temperature range (-40°C ~ 85°C)

Mechanical & Package Compatibility:

• Identical package designation: SC-74A, SOT-753 (SOT-23-5)
• Surface mount configuration
• Pin-compatible footprint

Compliance & Environmental:

• ROHS3 compliant
• MSL 1 (Unlimited moisture sensitivity level)
• REACH unaffected status
• Identical ECCN and HTSUS classifications

The substitution is valid because all critical electrical, mechanical, and environmental parameters are identical between the two parts.

Parameter Comparison

Engineering Selection Recommendations

The TPS3820-50DBVR is the recommended substitute for the TPS3820-50DBVT. The primary advantage of selecting the TPS3820-50DBVR is its Active product status, ensuring continued availability and supply chain support. The TPS3820-50DBVT, designated as Last Time Buy, has limited remaining inventory and will not receive future production runs.

Both parts are ROHS3 compliant and carry identical electrical and mechanical specifications, making the TPS3820-50DBVR a direct replacement without circuit redesign or PCB layout modifications. The substitute part maintains the same MSL 1 rating and environmental compliance profile.

For new designs or production transitions, the TPS3820-50DBVR should be selected to ensure long-term supply availability and manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can the TPS3820-50DBVR be used as a direct replacement for the TPS3820-50DBVT?

A: Yes. Both parts are electrically and mechanically identical. The TPS3820-50DBVR can be substituted without circuit modifications or PCB layout changes. The only difference is product status: the TPS3820-50DBVT is Last Time Buy, while the TPS3820-50DBVR is Active.

Q: What is the difference between Last Time Buy and Active product status?

A: Last Time Buy indicates the manufacturer will not produce additional units after current inventory is depleted. Active status means the part remains in full production with ongoing availability. For long-term supply security, Active parts are preferred.

Q: Are the packages identical between these two parts?

A: Yes. Both use the SC-74A, SOT-753 package designation (SOT-23-5), ensuring identical PCB footprints and pin configurations.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the TPS3820-50DBVT and TPS3820-50DBVR are ROHS3 compliant, REACH unaffected, and carry identical MSL 1 ratings.

Q: What voltage threshold does this supervisor monitor?

A: Both parts monitor a single voltage rail with a 4.55V threshold. The reset output activates (goes low) when the monitored voltage falls below this threshold.

Q: What is the reset timeout specification?

A: Both parts provide a 15ms minimum reset timeout, ensuring stable power supply stabilization before the reset signal is released.