TPS389050GQDSERQ1 Texas Instruments Integrated Circuit (Other) In Stock
TPS389050GQDSERQ1 is a Texas Instruments AEC-Q100 qualified automotive voltage supervisor with a fixed 4.677 V threshold and active-low open-drain reset output. It monitors a single supply rail and asserts reset during power-on and undervoltage conditions in a 6-pin WSON package. Suitable for processor supervisory circuits in automotive ECU and ADAS designs.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- TPS389050GQDSERQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7502(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- AEC-Q100 Grade 1 automotive qualification ensuring reliable operation across -40°C to 125°C in harsh vehicle environments
- Fixed 4.677 V threshold providing precise undervoltage detection for 5 V automotive processor supply rails without external resistors
- Active-low open-drain reset output compatible with multiple supply-voltage microcontrollers and shared reset bus topologies
- 6-pin WSON package enabling compact placement on automotive ECU boards with minimal PCB area consumption
Applications
TPS389050GQDSERQ1 is designed for automotive ECU power management circuits where a 5 V supply rail must be reliably monitored to assert processor reset during startup and brownout conditions. Its AEC-Q100 Grade 1 qualification makes it suitable for ADAS sensor modules, body control units, and infotainment system power-on reset networks requiring -40°C to 125°C operation. The open-drain output allows wired-OR connection with other supervisors on shared reset lines in multi-rail power sequencing architectures.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | S-PDSO-N6 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Screening Level | AEC-Q100 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.5V |
| Supply Voltage-Nom (Vsup) | 2.7V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +5V |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the fixed threshold voltage of TPS389050GQDSERQ1 and what supply rail does it monitor?
TPS389050GQDSERQ1 has a fixed 4.677 V threshold, making it specifically designed to monitor a 5 V automotive supply rail. When the monitored voltage drops below 4.677 V, the device asserts the active-low open-drain reset output, holding the connected processor in reset until the supply recovers and a timeout period elapses.
What automotive qualification grade does TPS389050GQDSERQ1 carry and what temperature range does it cover?
The device carries AEC-Q100 Grade 1 qualification, which requires reliability testing across -40°C to 125°C junction temperature. This grade is required for automotive underhood and powertrain-adjacent applications where ambient temperatures can exceed 85°C, making TPS389050GQDSERQ1 suitable for engine bay ECUs and transmission control modules.
How does the open-drain reset output of TPS389050GQDSERQ1 simplify multi-processor reset bus design?
The active-low open-drain output allows multiple TPS389050GQDSERQ1 devices monitoring different supply rails to share a single reset bus line with a pull-up resistor to any voltage between 1.5 V and 5.5 V. Any supervisor asserting its output pulls the shared bus low, resetting all connected processors simultaneously, without requiring additional logic gates or level translators.
Is TPS389050GQDSERQ1 suitable for an ADAS 5 V sensor supply monitoring application requiring IEC 61508 functional safety compliance?
TPS389050GQDSERQ1's AEC-Q100 Grade 1 qualification and -40°C to 125°C operating range make it a strong candidate for ADAS sensor supply monitoring. While the device provides precise 4.677 V undervoltage detection suitable for functional safety architectures, formal IEC 61508 SIL or ISO 26262 ASIL compliance requires system-level fault analysis and documentation beyond the component qualification alone.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.7200 | $1.72 |
| 198+ | $1.5100 | $298.98 |
| 1000+ | $1.0000 | $1000.00 |
| 10000+ | $0.8954 | $8954.00 |
| 100000+ | $0.7502 | $75020.00 |
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