TPS3847085DBVR Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
The TPS3847085DBVR is a single-channel voltage supervisor from Texas Instruments with only 380 nA quiescent current, designed to monitor 12 V power rails and assert a reset signal when the rail falls below the fixed 8.5 V threshold. It features a fixed threshold with no external adjustment components and is housed in a compact 5-pin SOT-23 package suitable for space-constrained industrial and consumer boards. Available in tape and reel with a 15-year product lifecycle for long-term supply assurance.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- TPS3847085DBVR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.1000(MOQ 100)
- Temp Range
- -40.0°C to 105.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS3847085DBVR?
- Ultra-low 380 nA quiescent current for minimal power overhead when monitoring 12 V rails in always-on systems
- Fixed 8.5 V threshold single-channel voltage supervisor with reset output in a compact 5-pin SOT-23 package
- 15-year YTEOL lifecycle rating provides long-term supply chain security for industrial and infrastructure equipment designs
What is TPS3847085DBVR used for?
The TPS3847085DBVR is used in industrial power supplies, server backplanes, and motor drive systems where continuous supervision of the 12 V rail is required to protect downstream logic from undervoltage conditions. Its 380 nA quiescent current makes it ideal for always-on monitoring in energy-efficient equipment where supervisor bias power must be minimized across the product lifetime. The 5-pin SOT-23 package and fixed 8.5 V threshold simplify design by eliminating external resistor dividers, making it straightforward to add 12 V rail health monitoring to existing PCB layouts.
What are the specifications of TPS3847085DBVR?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Max (Vsup) | 18V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +8.5V |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Philippines |
Where can I find the TPS3847085DBVR datasheet?
TPS3847085DBVR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS3847085DBVR?
Compatible alternatives and drop-in replacements for TPS3847085DBVR:
Frequently Asked Questions
At what voltage threshold does TPS3847085DBVR assert its reset output, and what applications require this specific trip point?
The TPS3847085DBVR monitors a 12 V rail and asserts its reset output when the voltage drops below the fixed 8.5 V threshold. This trip point is calibrated to detect significant undervoltage conditions on 12 V distribution buses used in industrial PLCs, ATX computer power supplies, and motor control boards, where a drooping 12 V rail below 8.5 V indicates a fault condition that could corrupt microcontroller operations or damage output stages if not responded to with a timely reset.
How does the 380 nA quiescent current of TPS3847085DBVR benefit always-on industrial monitoring applications?
At only 380 nA quiescent current, the TPS3847085DBVR consumes less than 5 µW from a 12 V rail, making it negligible in the overall system power budget. Industrial equipment that operates continuously for years benefits from this ultra-low bias current, as it contributes less than 44 mWh to annual energy consumption. Compared to voltage supervisors with 1 µA to 10 µA quiescent current, the TPS3847085DBVR reduces standby power dissipation by 60% to 97% in always-on applications.
Can TPS3847085DBVR be used without external resistor dividers, and how does this simplify the PCB design?
Yes, the TPS3847085DBVR has a fixed 8.5 V threshold with no external resistor adjustment, meaning the monitor input connects directly to the 12 V rail through a simple resistor or directly if within the absolute maximum voltage rating. This eliminates the 2-resistor voltage divider network required by adjustable supervisors, saving PCB area and reducing component count by 2 parts. The fixed-threshold approach also removes tolerance stack-up from resistor divider accuracy, giving more predictable reset behavior across production units.
What is the package type and pin count of TPS3847085DBVR, and how small is its PCB footprint?
The TPS3847085DBVR is housed in a 5-pin SOT-23 package (JESD-30 code R-PDSO-G5), one of the most common small-signal packages with a footprint of approximately 1.6 mm x 2.9 mm. With 5 pins and a single-channel function, the package is straightforward to place adjacent to the power rail connector or the system MCU reset pin. The SOT-23 footprint is supported by virtually all PCB CAD tools and is compatible with standard 0402 passive component placement density on industrial control boards.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $1.4538 | $145.38 |
| 250+ | $1.3725 | $343.13 |
| 500+ | $1.3342 | $667.08 |
| 1000+ | $1.2300 | $1230.00 |
| 6000+ | $1.2090 | $7254.06 |
| 10000+ | $1.1000 | $11000.00 |
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