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Texas Instruments TPS3803G15QDCKREP
- Part No.:
- TPS3803G15QDCKREP
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TPS3803G15QDCKREP.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,232
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Product details
Overview
TPS3803G15QDCKREP from Texas Instruments is a radiation-hardened, high-reliability voltage supervisor IC with fixed 1.4 V threshold, open-drain active-low reset output, ±1.5% threshold accuracy, 3 µA typical supply current at 3.3 V, and operation across −40°C to +125°C - used for power-on reset supervision in space-grade DSP and microcontroller systems.
For engineers reviewing the TPS3803G15QDCKREP datasheet, TPS3803G15QDCKREP pinout, TPS3803G15QDCKREP application, or TPS3803G15QDCKREP equivalent, this page delivers verified functional identity, SC-70 package mapping, reset timing behavior, thermal performance envelope, and qualified alternatives for extended-temperature embedded control designs.
Technical Context
The TPS3803G15QDCKREP implements a precision bandgap reference (1.215 V) and comparator architecture to monitor VDD only - unlike TPS3803−01 or TPS3805 variants, it lacks SENSE input functionality and has NC on Pin 5. RESET asserts when VDD falls below 1.4 V (±1.5%) and deasserts after hysteresis recovery (15 mV), with power-up reset activation triggered at VDD ≥ 0.8 V.
It operates exclusively in open-drain mode with no internal pull-up, requires external pull-up for logic-level compatibility, and supports supply voltages from 1.3 V to 6 V. Its design targets single-rail monitoring in radiation-tolerant systems where deterministic reset assertion timing and long-term threshold stability under thermal stress are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Threshold Voltage | 1.4 V ±1.5% - ensures precise reset assertion at nominal 1.5 V rail without external resistor network |
| Supply Current | 3 µA typical at VDD = 3.3 V - enables ultra-low-power supervision in battery-backed or energy-constrained systems |
| Operating Temperature | −40°C to +125°C - qualified per JEDEC standards including HAST, temperature cycling, and bond intermetallic life testing |
| Reset Output Type | Open-drain active-low - allows wired-OR configuration and flexible voltage-level translation via external pull-up |
| Hysteresis | 15 mV - prevents reset chatter during slow-rising or noisy supply transitions near threshold |
| Power-Up Reset Voltage | 0.8 V - guarantees reliable reset assertion during initial power ramp before VDD reaches operational level |
| Package | 5-pin SC-70 (DCK) - surface-mount footprint with 0.65 mm pitch, 2.0 mm × 1.25 mm body, 1.1 mm max height |
Pinout & Package
TPS3803G15QDCKREP uses the 5-pin SC-70 (DCK) package with exposed pad not electrically connected. Pin 1 is NC (no internal connection); Pin 5 is also NC - confirmed for this exact variant per TI datasheet Figure 1 and Terminal Functions table.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (NC) | No internal connection | Unused terminal; must be left floating or grounded per layout best practice - no electrical function |
| Pin 2 (GND) | Ground reference | Primary return path for internal reference and comparator; requires low-inductance connection to system ground plane |
| Pin 3 (RESET) | Active-low open-drain output | Drives low when VDD < 1.4 V; requires external pull-up resistor to define logic-high level and sink capability |
| Pin 4 (VDD) | Supply and sense input | Monitors same node for both power and threshold detection; accepts 1.3 V to 6 V with 3 µA quiescent draw |
| Pin 5 (NC) | No internal connection | Not bonded internally; electrically isolated - no routing or termination required |
Key Features
| Feature | Design Value |
|---|---|
| Controlled Baseline Manufacturing | Single assembly/test site and single fabrication site - ensures consistent parametric distribution and traceability for mission-critical programs |
| Extended Temperature Qualification | JEDEC-qualified for −40°C to +125°C including HAST, temperature cycle, and electromigration testing - validated for harsh-environment reliability |
| Enhanced DMS Support | Diminishing Manufacturing Sources mitigation via long-term material planning and dual-source qualification - reduces obsolescence risk in 15+ year programs |
| Fixed 1.4 V Threshold Accuracy | ±1.5% over full temperature range - eliminates calibration overhead and external resistor tolerance dependencies in 1.5 V system supervision |
| Low-Power Supervision | 3 µA typical IDD at 3.3 V - enables integration into always-on monitoring paths without impacting system standby budget |
Applications
| Spacecraft Onboard Computer Power Sequencing | Avionics Flight Control Unit Reset Management |
|---|---|
|
Use Scenario: Monitors primary 1.5 V FPGA core rail during launch vibration and thermal vacuum cycling. IC Role / Device Role / Timing Role: Single-rail voltage supervisor asserting active-low RESET until VDD stabilizes above 1.4 V with 15 mV hysteresis. Use Value: Guarantees deterministic processor initialization after power interruption, preventing metastable boot states in radiation-prone environments. |
Use Scenario: Provides fail-safe reset to dual-redundant ARM Cortex-M7 controllers in fly-by-wire ECUs. IC Role / Device Role / Timing Role: Open-drain RESET output tied to multiple MCUs via shared pull-up, enabling synchronized recovery. Use Value: Eliminates need for discrete resistor networks while maintaining ±1.5% threshold stability across −40°C to +125°C operating range. |
| Satellite Payload Telemetry Controller | Ruggedized Industrial PLC CPU Module |
|
Use Scenario: Supervises 1.5 V ADC/DAC reference rail in LEO satellite payload with 15-year design life. IC Role / Device Role / Timing Role: Fixed-threshold detector with no external components - reduces BOM count and failure modes in hermetically sealed modules. Use Value: Meets ESA/SCC basic reliability requirements via controlled baseline manufacturing and enhanced DMS pedigree documentation. |
Use Scenario: Ensures clean reset of Intel Atom-based controller during brownout events in oilfield drilling equipment. IC Role / Device Role / Timing Role: Monitors main 1.5 V logic supply; asserts RESET within 100 µs of threshold breach per propagation delay spec. Use Value: Prevents firmware corruption during grid instability by guaranteeing minimum 5.5 µs pulse width at VDD threshold overdrive. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3803G15MDCKREP | Same electrical specs but −55°C to +125°C operating range and ARH marking; M-suffix indicates enhanced plastic for extended cold performance | Required for systems operating below −40°C (e.g., polar-orbiting satellites, arctic industrial gear) | Select when full military-grade temperature coverage is mandatory; otherwise Q-suffix suffices for commercial-space and avionics use cases |
| TPS3803-01QDCKREP | Adjustable threshold via external resistors (1.226 V nominal), same package and temperature range, but adds SENSE pin functionality | Used where multi-rail supervision or programmable reset points are needed - not drop-in compatible due to Pin 5 SENSE assignment | Choose only if design requires configurable threshold; TPS3803G15QDCKREP offers lower BOM cost and smaller layout footprint for fixed 1.5 V rails |
Compared with TPS3803G15MDCKREP, the TPS3803G15QDCKREP trades extended low-temperature operation for optimized cost and availability in −40°C applications; versus TPS3803-01QDCKREP, it removes design flexibility to deliver higher accuracy, lower component count, and guaranteed pin compatibility for dedicated 1.5 V supervision.
Availability
TPS3803G15QDCKREP is available at Aetrix Electronics and suitable for spacecraft onboard computers, avionics flight control units, and ruggedized industrial PLCs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPS3803G15QDCKREP 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and aerospace markets since 1930.
The TPS3803-EP product line was designed specifically for high-reliability applications requiring extended temperature operation, radiation tolerance, and controlled manufacturing pedigree - targeting space, defense, and critical infrastructure systems.
FAQ
What is the exact threshold voltage of the TPS3803G15QDCKREP and how tightly is it specified?
The TPS3803G15QDCKREP has a fixed threshold voltage of 1.40 V, specified with ±1.5% accuracy over the full −40°C to +125°C operating range. This value is trimmed at wafer test and confirmed per Electrical Characteristics table in the official TI datasheet SGLS227C. The TPS3803G15QDCKREP does not require external resistors to set its trip point, distinguishing it from adjustable variants like TPS3803−01QDCKREP.
Does the TPS3803G15QDCKREP support dual-voltage monitoring like the TPS3805 family?
No, the TPS3803G15QDCKREP monitors only the VDD supply rail and has no SENSE input functionality. Pin 5 is explicitly designated NC (no connection) for this variant, unlike TPS3805H33QDCKREP which uses Pin 5 as an adjustable sense input. The TPS3803G15QDCKREP is strictly a single-rail supervisor optimized for 1.5 V systems.
What is the reset output configuration of the TPS3803G15QDCKREP and what external components are required?
The TPS3803G15QDCKREP features an open-drain active-low RESET output (Pin 3). It requires an external pull-up resistor to a valid logic-high voltage (e.g., 3.3 V or 5 V) to generate a defined HIGH state. No internal pull-up exists, and the device cannot drive HIGH actively - this configuration enables wired-OR reset buses and voltage-level translation in mixed-supply systems.
Is the TPS3803G15QDCKREP pin-compatible with other devices in the TPS3803-EP family?
Yes, the TPS3803G15QDCKREP shares identical SC-70 (DCK) package dimensions and pinout with TPS3803−01QDCKREP and TPS3805H33QDCKREP - all have 5 pins in the same physical layout. However, Pin 5 is NC on TPS3803G15QDCKREP but functions as SENSE on TPS3805H33QDCKREP, so PCB layout reuse requires verification of net connectivity and absence of unintended shorts or pulls.
What qualification standards apply to the TPS3803G15QDCKREP and how is its reliability validated?
The TPS3803G15QDCKREP is qualified per JEDEC and industry standards for extended temperature operation, including Highly Accelerated Stress Test (HAST), temperature cycling, autoclave, electromigration, bond intermetallic life, and mold compound life testing. These tests confirm reliability for −40°C to +125°C operation and support long-life deployment in space and avionics applications per TI's enhanced plastic (EP) program documentation.
TPS3803G15QDCKREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.4V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 5µs Typical Propagation Delay
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
TPS3803G15QDCKREP FAQ
1.How can I place an order for TPS3803G15QDCKREP through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS3803G15QDCKREP 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 TPS3803G15QDCKREP reliable?
The price and inventory of TPS3803G15QDCKREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS3803G15QDCKREP is usually 5 days.
3.What payment methods are accepted for TPS3803G15QDCKREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS3803G15QDCKREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS3803G15QDCKREP?
TPS3803G15QDCKREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS3803G15QDCKREP 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 TPS3803G15QDCKREP?
For technical support, including TPS3803G15QDCKREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS3803G15QDCKREP requirements.
6.How does Aetrix verify that TPS3803G15QDCKREP is sourced from the original manufacturer or authorized distributors?
All TPS3803G15QDCKREP 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 TPS3803G15QDCKREP meets industry standards.
7.What is the process for return or replacement of TPS3803G15QDCKREP?
All TPS3803G15QDCKREP units undergo pre-shipment inspection (PSI). If there is an issue with TPS3803G15QDCKREP, 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 TPS3803G15QDCKREP part is unused and in its original packaging.
Return procedure for TPS3803G15QDCKREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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