TPS3840DL45DBVRQ1 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
Texas Instruments TPS3840DL45DBVRQ1 is an automotive-grade voltage supervisor IC with manual reset and programmable reset time delay. It monitors supply rails from 1.5 V to 10 V and operates from -40°C to 125°C in a compact 5-pin SOT-23 package. Automotive qualified and available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- TPS3840DL45DBVRQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4840(MOQ 250)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS3840DL45DBVRQ1?
- AEC-Q100 automotive qualified voltage supervisor operating from -40°C to 125°C for harsh environment reliability
- Programmable reset time delay from 1 ms to 1.68 s via external capacitor enabling system-specific power-on sequencing
- High input voltage range up to 10 V with 4.5 V threshold monitoring in a 5-pin SOT-23 package for space-constrained automotive ECUs
What is TPS3840DL45DBVRQ1 used for?
The TPS3840DL45DBVRQ1 is designed for automotive electronic control units requiring reliable supply rail supervision under wide temperature and voltage stress conditions. Its manual reset input and programmable delay allow designers to sequence power domains in ADAS sensor modules, body control units, and infotainment systems. Operating across a -40°C to 125°C range with AEC-Q100 qualification, it meets the reliability demands of underhood automotive environments.
What are the specifications of TPS3840DL45DBVRQ1?
| Pbfree Code | Yes |
| Date Of Intro | 2019-09-08 |
| 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 Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Screening Level | AEC-Q100 |
| Supply Current-Max (Isup) | 0.0007mA |
| Supply Voltage-Max (Vsup) | 10V |
| Supply Voltage-Min (Vsup) | 1.5V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +4.5V |
| 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 TPS3840DL45DBVRQ1 datasheet?
TPS3840DL45DBVRQ1 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS3840DL45DBVRQ1?
Compatible alternatives and drop-in replacements for TPS3840DL45DBVRQ1:
Frequently Asked Questions
What supply voltage range does the TPS3840DL45DBVRQ1 monitor and at what threshold does it assert reset?
The TPS3840DL45DBVRQ1 monitors supply voltages from 1.5 V to 10 V and asserts an active-low reset output when the monitored rail drops below the 4.5 V threshold, holding the reset signal for the programmed delay period to allow downstream controllers to recover cleanly from voltage dropout events.
How is the programmable reset time delay configured in the TPS3840DL45DBVRQ1 and what range is achievable?
The reset time delay is set by a single external capacitor connected to the CT pin; a 10 nF capacitor yields approximately 100 ms delay, and the full adjustable range spans from 1 ms with a 100 pF capacitor to 1.68 s with a 100 nF capacitor. This single-component tuning allows system designers to match the power-on sequencing requirement of microcontrollers or FPGAs without additional logic circuits.
For an ADAS ECU operating in an underhood automotive environment, why is the TPS3840DL45DBVRQ1 preferable to a commercial-grade supervisor?
The TPS3840DL45DBVRQ1 carries AEC-Q100 Grade 1 qualification, guaranteeing operation across -40°C to 125°C with PPAP-compatible reliability data. Commercial supervisors are typically rated only to 85°C and lack the qualification test coverage required for ISO 26262 ASIL-B power management safety elements, making the TPS3840DL45DBVRQ1 the appropriate choice for underhood ECU designs with 15-year lifecycle targets.
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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 |
|---|---|---|
| 250+ | $0.5780 | $144.51 |
| 500+ | $0.5543 | $277.13 |
| 1000+ | $0.5190 | $519.00 |
| 3000+ | $0.4950 | $1485.00 |
| 6000+ | $0.4840 | $2904.00 |
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