My Inquiry
My Account
Texas Instruments TPS3809I50MDBVREP
- Part No.:
- TPS3809I50MDBVREP
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
TPS3809I50MDBVREP.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,244
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS3809I50MDBVREP from Texas Instruments is a precision 3-pin supply voltage supervisor IC designed for power-on reset generation and supply monitoring in DSP, microcontroller, and processor-based systems. It features a fixed 4.55 V threshold voltage, 200 ms reset delay time, 9 µA typical supply current, and operates across –55°C to 125°C for aerospace, defense, and industrial applications.
For engineers reviewing the TPS3809I50MDBVREP datasheet, TPS3809I50MDBVREP pinout, TPS3809I50MDBVREP application, or TPS3809I50MDBVREP equivalent, key selection criteria include its EP-rated SOT-23 package, extended temperature qualification, low-power reset supervision, and compatibility with legacy MAX809-based designs.
Technical Context
The TPS3809I50MDBVREP implements a precision bandgap reference and internal voltage divider to set its 4.55 V threshold (VIT–), with 60 mV hysteresis for noise immunity. Its reset logic asserts low when VDD falls below VIT– and holds RESET active until VDD rises above VIT– and the 200 ms internal timer expires.
No external components are required: the device integrates oscillator, timer, reference, and reset logic in a single 3-pin SOT-23 (DBV) package. It monitors VDD from 1.1 V upward and supports supply voltages from 2 V to 6 V, with output drive capability of ±4 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Threshold Voltage | 4.55 V (VIT–), fixed internal sense point for 5 V nominal rail supervision |
| Reset Delay Time | 200 ms typ., ensures reliable system initialization after power-up or brownout recovery |
| Supply Current | 9 µA typ. at VDD = 2 V, enabling ultra-low-power operation in battery-backed systems |
| Operating Temperature | –55°C to 125°C, qualified per JEDEC standards for high-reliability military/aerospace use |
| Output Type | Open-drain active-low RESET, compatible with 1.8–6 V logic interfaces via pull-up |
| Hysteresis | 60 mV, prevents false resets during noisy or slowly recovering supply conditions |
| Supply Voltage Range | 2 V to 6 V, supports wide input margin while maintaining valid reset assertion down to 1.1 V |
Pinout & Package
SOT-23 (DBV) 3-pin surface-mount package, 1.45 mm max height, JEDEC MO-178 compliant, tape-and-reel packaging (3000 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RESET) | Active-low open-drain reset output | Drives low during power-up, brownout, or undervoltage; requires external pull-up for logic-high state |
| 2 (VDD) | Supply voltage input | Monitored rail input; device asserts RESET if VDD drops below 4.55 V or rises from <1.1 V |
| 3 (GND) | Ground reference | Return path for internal circuitry and output sink current; must be low-impedance for stable threshold |
Key Features
| Feature | Design Value |
|---|---|
| Precision threshold accuracy | ±1.5% over temperature, ensuring consistent 5 V rail supervision without calibration |
| Extended temperature qualification | –55°C to 125°C operation with HAST, temperature cycling, and intermetallic life testing per JESD22 |
| Pin-for-pin compatibility | Direct replacement for MAX809 in existing layouts, preserving PCB design and BOM continuity |
| Low quiescent current | 9 µA typical enables >10-year battery life in always-on supervisory applications |
| No external components | Integrated timer, reference, and comparator eliminate capacitors, resistors, or external timing networks |
Applications
| Avionics Power Sequencing | Military Data Acquisition Systems |
|---|---|
|
Use Scenario: Supervising 5 V power rails in flight control computers where cold-start reliability and radiation-tolerant reset timing are critical. IC Role / Device Role / Timing Role: Primary power-on reset generator with 200 ms fixed delay, ensuring FPGA and ADCs initialize only after stable 5 V rail. Use Value: Eliminates need for discrete RC timing networks, reducing component count and improving long-term timing stability across thermal extremes. |
Use Scenario: Monitoring auxiliary 5 V supplies in ruggedized field-deployable test equipment operating from –40°C to +85°C ambient. IC Role / Device Role / Timing Role: Brownout detector and reset hold-off circuit, asserting RESET during transient dips below 4.55 V. Use Value: 60 mV hysteresis prevents chatter during marginal supply conditions, increasing measurement integrity in harsh EMI environments. |
| Space-Qualified Telemetry Modules | Rail-Specific Industrial PLC Controllers |
|
Use Scenario: Providing radiation-hardened reset signaling in satellite telemetry subsystems using 5 V regulated bus. IC Role / Device Role / Timing Role: Extended-temperature supervisor with controlled baseline manufacturing and DMS support for long-life missions. Use Value: JEDEC-qualified reliability data and enhanced pedigree documentation meet NASA EEE-INST-002 requirements. |
Use Scenario: Ensuring deterministic boot sequence in programmable logic controllers with dual 5 V/3.3 V rails and watchdog co-dependency. IC Role / Device Role / Timing Role: Dedicated 5 V rail supervisor feeding system-level reset tree, decoupled from 3.3 V logic domain. Use Value: Fixed 4.55 V threshold avoids mis-triggering from 3.3 V rail noise, isolating fault domains in multi-rail industrial control hardware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supply voltage supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD2T1G | 4.63 V threshold, 240 ms delay, commercial temp range (–40°C to 85°C), no EP qualification | Lacks extended temperature rating and space-grade reliability testing; suitable for non-critical commercial systems | Select when cost sensitivity outweighs military/aerospace qualification needs and 4.63 V threshold aligns with design margin |
| TPS3809K33MDBVREP | 2.93 V threshold, identical package, timing, and temperature rating; same EP pedigree | Designed for 3.3 V rail supervision instead of 5 V; not interchangeable without circuit revision | Choose only when migrating to lower-voltage systems requiring same reliability profile and footprint |
Compared with MAX809TRD2T1G, TPS3809I50MDBVREP delivers verified extended-temperature operation and radiation-aware process controls; compared with TPS3809K33MDBVREP, it provides higher threshold voltage essential for robust 5 V rail monitoring without recalibration.
Availability
TPS3809I50MDBVREP is available at Aetrix Electronics and suitable for avionics power sequencing, military data acquisition systems, space-qualified telemetry modules, and rail-specific industrial PLC controllers requiring stable component supply across extended temperature and long lifecycle programs.
Supply support for TPS3809I50MDBVREP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-reliability components, with decades of heritage in precision analog and space-grade IC design.
The TPS3809-EP product line delivers enhanced plastic, extended-temperature supervisors for mission-critical applications where supply voltage integrity directly impacts system safety and functional correctness.
FAQ
What is the exact reset threshold voltage of the TPS3809I50MDBVREP?
The TPS3809I50MDBVREP has a nominal threshold voltage (VIT–) of 4.55 V, with guaranteed min/max values of 4.45 V and 4.65 V across –55°C to 125°C. This fixed internal sense point is optimized for monitoring standard 5 V supply rails and is set by a precision voltage divider, requiring no external components.
Does the TPS3809I50MDBVREP require external components to operate?
No, the TPS3809I50MDBVREP requires no external components. Its internal oscillator, timer, bandgap reference, and comparator enable full reset functionality-including 200 ms delay and 4.55 V threshold detection-in a self-contained 3-pin SOT-23 package. Only an external pull-up resistor on the RESET pin is needed for proper logic-level interfacing.
Is the TPS3809I50MDBVREP pin-compatible with the MAX809?
Yes, the TPS3809I50MDBVREP is explicitly specified as pin-for-pin compatible with the MAX809 in TI's official documentation. Both devices use identical SOT-23 (DBV) pinout: Pin 1 = RESET, Pin 2 = VDD, Pin 3 = GND-enabling drop-in replacement without PCB layout changes.
What is the operating temperature range supported by the TPS3809I50MDBVREP?
The TPS3809I50MDBVREP is rated for operation from –55°C to 125°C and is fully qualified per JEDEC standards for extended temperature reliability. This includes HAST, temperature cycling, electromigration, and bond intermetallic life testing-making it suitable for aerospace, defense, and industrial environments where thermal extremes are routine.
What output configuration does the TPS3809I50MDBVREP use?
The TPS3809I50MDBVREP uses an open-drain active-low RESET output. When asserted, it sinks current to ground; when inactive, it presents high impedance and requires an external pull-up resistor to define the logic-high level. This configuration supports mixed-voltage interface designs and wired-OR reset bus architectures.
TPS3809I50MDBVREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.55V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 120ms Minimum
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
TPS3809I50MDBVREP FAQ
1.How can I place an order for TPS3809I50MDBVREP through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS3809I50MDBVREP on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS3809I50MDBVREP reliable?
The price and inventory of TPS3809I50MDBVREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS3809I50MDBVREP is usually 5 days.
3.What payment methods are accepted for TPS3809I50MDBVREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS3809I50MDBVREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS3809I50MDBVREP?
TPS3809I50MDBVREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS3809I50MDBVREP order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS3809I50MDBVREP?
For technical support, including TPS3809I50MDBVREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS3809I50MDBVREP requirements.
6.How does Aetrix verify that TPS3809I50MDBVREP is sourced from the original manufacturer or authorized distributors?
All TPS3809I50MDBVREP products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS3809I50MDBVREP meets industry standards.
7.What is the process for return or replacement of TPS3809I50MDBVREP?
All TPS3809I50MDBVREP units undergo pre-shipment inspection (PSI). If there is an issue with TPS3809I50MDBVREP, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS3809I50MDBVREP part is unused and in its original packaging.
Return procedure for TPS3809I50MDBVREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS3809I50MDBVREP Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
