My Inquiry
My Account
Texas Instruments TPS37041BPLEDDFRQ1
- Part No.:
- TPS37041BPLEDDFRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
TPS37041BPLEDDFRQ1.pdf
- Description:
- Automotive multichannel window
- Quantity:
- Payment:
- Shipping:
Inventory:3,502
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS37041BPLEDDFRQ1 from Texas Instruments is an ASIL-A functional safety-compliant automotive single-channel window voltage supervisor in an 8-pin SOT-23 (DDF) package. It monitors a single rail with ±0.25% typical threshold accuracy, 5 ms fixed reset delay, and 0.9 V ±7% undervoltage/overvoltage detection window. Designed for TI processor core rail supervision (e.g., AM62x, TDA4), it operates from –40°C to +125°C and draws only 5.5 µA typical quiescent current.
For engineers reviewing the TPS37041BPLEDDFRQ1 datasheet, TPS37041BPLEDDFRQ1 pinout, TPS37041BPLEDDFRQ1 application, or TPS37041BPLEDDFRQ1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification, push-pull active-low output (L suffix), fixed 0.9 V threshold with ±7% window tolerance, 5 ms reset delay, and integrated resistor-based threshold setting eliminating external components.
Technical Context
The TPS37041BPLEDDFRQ1 implements a precision window comparator architecture with independent overvoltage (OV) and undervoltage (UV) thresholds derived from internal resistor dividers-no external resistors required. Its 0.9 V nominal detection point supports narrow-margin low-voltage rails such as 1.0 V or 1.2 V processor cores, with asymmetric ±7% window tolerance enabling tailored UV/OV margins.
It features built-in 0.75% typical hysteresis to prevent false resets during rail transients and integrates a fixed 5 ms reset timeout counter. The device uses bandgap-referenced comparators and POR circuitry, with UVLO protection at 1.4 V (typical) and guaranteed operation down to 1.7 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Threshold Voltage | 0.9 V ±7% window (UV = 0.837 V, OV = 0.963 V); enables precise monitoring of sub-1 V rails without external components |
| Accuracy | ±0.25% typical over –40°C to +125°C; ensures reliable reset assertion under automotive thermal stress |
| Reset Delay | Fixed 5 ms; provides stable power-rail stabilization time before system release from reset |
| Quiescent Current | 5.5 µA typical; minimizes standby power in always-on automotive domains (e.g., ADAS sensors) |
| Output Type | Push-pull active-low (L suffix); eliminates need for external pull-up resistor, simplifies PCB layout |
| Operating Temp | –40°C to +125°C (Grade 1); qualified for engine bay, infotainment, and ADAS ECU environments |
| Package | 8-pin SOT-23 (DDF, 1.6 mm × 2.9 mm); compact footprint compatible with high-density automotive PCBs |
Pinout & Package
TPS37041BPLEDDFRQ1 uses the DDF (8-pin SOT-23) package, measuring 1.6 mm × 2.9 mm, with exposed pad not electrically connected. Pin 1 is VDD; pins 3, 5, 6, and 7 are NC; pin 4 is GND; pin 2 is SENSE1; pin 8 is RESET1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 1) | Supply input | Power source (1.7–6.0 V); requires 0.1 µF bypass capacitor to GND for noise immunity |
| SENSE1 (Pin 2) | Monitoring input | Direct connection to monitored rail (e.g., 1.0 V core); no external capacitor needed unless noise exceeds 100 nF ceramic filter requirement |
| GND (Pin 4) | Ground reference | Common return path for VDD, SENSE1, and RESET1; must be low-impedance for accurate threshold sensing |
| RESET1 (Pin 8) | Active-low reset output | Push-pull driver; asserts low when SENSE1 falls outside 0.837–0.963 V window; releases after 5 ms delay |
Key Features
| Feature | Design Value |
|---|---|
| ASIL-A functional safety compliance | Documentation and systematic capability aligned to ISO 26262 for use in safety-critical automotive subsystems |
| Integrated threshold resistors | Eliminates external resistor network, reducing BOM count, layout area, and accuracy drift from resistor tolerances |
| Programmable window tolerance | ±7% window (asymmetric) enables independent UV/OV margin tuning for asymmetric rail fault requirements |
| Built-in hysteresis | 0.75% typical prevents chatter on noisy rails-no external RC network required |
| AEC-Q100 Grade 1 qualification | Validated for continuous operation at +125°C ambient, supporting under-hood and ECU applications |
Applications
| Advanced Driver Assistance System (ADAS) | Automotive Infotainment and Cluster |
|---|---|
Use Scenario: Supervision of 1.0 V core rail in radar SoC (e.g., TDA4VM) during cold cranking and load dump events. IC Role / Device Role / Timing Role: Single-channel window supervisor asserting RESET1 if rail deviates beyond 0.837–0.963 V, with 5 ms hold time. Use Value: Prevents corrupted firmware execution by ensuring clean boot after power recovery, leveraging ±0.25% accuracy across temperature. |
Use Scenario: Monitoring 1.2 V I/O rail in digital cluster MCU during ignition cycling and EMI-rich dashboard environment. IC Role / Device Role / Timing Role: Push-pull active-low supervisor providing glitch-immune reset signal with built-in 0.75% hysteresis. Use Value: Eliminates need for external pull-up and RC filtering, reducing component count while maintaining ASIL-A traceability. |
| HEV/EV Powertrain Control | Body Electronics and Lighting |
Use Scenario: Supervising 1.8 V auxiliary domain controller rail in battery management unit during regenerative braking transients. IC Role / Device Role / Timing Role: Fixed-threshold window detector with 5 ms reset delay, operating at full spec from –40°C to +125°C. Use Value: Guarantees deterministic reset behavior under wide thermal and voltage variation, meeting AEC-Q100 stress requirements. |
Use Scenario: Ensuring stable startup of LED driver ICs powered from 3.3 V body control module rail. IC Role / Device Role / Timing Role: Single-rail supervisor detecting undervoltage (e.g., brownout) and overvoltage (e.g., load dump) faults. Use Value: Enables fail-safe shutdown of lighting modules before rail excursion damages downstream FETs or LEDs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS37042A3OFDDFRQ1 | Dual-channel, open-drain output, 3.3 V/1.2 V fixed thresholds, 10 ms delay | Supports simultaneous monitoring of two rails (e.g., DVDD + IOVDD); requires external pull-up resistors | Select when dual-rail supervision is needed and open-drain flexibility justifies added BOM complexity |
| TLV809E29DBVRQ1 | Single-channel, fixed 2.93 V threshold, 200 ms delay, ±2% accuracy, SOT-23-3 | Limited to basic undervoltage detection; lacks window capability, lower accuracy, longer delay | Use only for non-critical, cost-sensitive UV-only applications where 2.93 V matches rail and timing margin allows 200 ms |
Compared with TPS37042A3OFDDFRQ1, the TPS37041BPLEDDFRQ1 offers tighter accuracy (±0.25% vs ±5%), shorter delay (5 ms vs 10 ms), and push-pull output-ideal for single-rail, fast-release systems. Versus TLV809E29DBVRQ1, it adds overvoltage detection, higher precision, and automotive-grade window supervision, but occupies larger 8-pin footprint.
Availability
TPS37041BPLEDDFRQ1 is available at Aetrix Electronics and suitable for Advanced Driver Assistance Systems (ADAS), automotive infotainment, and HEV/EV powertrain control requiring stable component supply across extended temperature and long product lifecycles.
Supply support for TPS37041BPLEDDFRQ1 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 automotive ICs, with decades of automotive qualification expertise and functional safety infrastructure.
The TPS3704-Q1 family was designed specifically for ASIL-A-compliant voltage supervision in modern automotive processors-including AM26x, AM62x, and TDA4-enabling robust, resistorless rail monitoring in space-constrained ECUs.
FAQ
What is the exact threshold configuration of TPS37041BPLEDDFRQ1?
The TPS37041BPLEDDFRQ1 is factory-configured for a single-channel window supervisor with 0.9 V nominal threshold and ±7% window tolerance-resulting in undervoltage trip at 0.837 V and overvoltage trip at 0.963 V. This fixed configuration requires no external resistors and is validated across –40°C to +125°C per AEC-Q100 Grade 1.
Does TPS37041BPLEDDFRQ1 support adjustable thresholds?
No, TPS37041BPLEDDFRQ1 does not support adjustable thresholds. It is a fixed-threshold variant (denoted by "BPL" in naming convention). Adjustable versions (e.g., TPS37043LJOFDDFRQ1) use "LJ" or "CJ" suffixes and require external resistor dividers on SENSE pins-TPS37041BPLEDDFRQ1 integrates all threshold-setting resistors internally.
What output topology does TPS37041BPLEDDFRQ1 use?
TPS37041BPLEDDFRQ1 uses a push-pull active-low output (indicated by "L" in the part number suffix). This means RESET1 drives actively low and actively high-no external pull-up resistor is required, unlike open-drain variants (denoted by "O"). Output voltage levels meet VOH ≥ 0.8×VDD and VOL ≤ 300 mV at specified sink currents.
How is functional safety implemented in TPS37041BPLEDDFRQ1?
TPS37041BPLEDDFRQ1 achieves ASIL-A compliance through systematic design processes aligned with ISO 26262, including hardware failure analysis, diagnostic coverage documentation, and safety manual support. Its hardware capability is rated ASIL-A, and it provides safety-relevant features like built-in hysteresis, POR, and UVLO-enabling integration into ASIL-B/C systems with appropriate system-level decomposition.
Can TPS37041BPLEDDFRQ1 monitor rails below 1.0 V?
Yes, TPS37041BPLEDDFRQ1 can monitor rails as low as 0.9 V with ±7% tolerance, and the underlying TPS3704-Q1 architecture supports thresholds down to 0.4 V (e.g., TPS37043LJOFDDFRQ1). Its 20 mV threshold resolution below 0.8 V and ±0.25% accuracy make it suitable for modern low-voltage processor cores, though TPS37041BPLEDDFRQ1 itself is fixed at 0.9 V.
TPS37041BPLEDDFRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-8 Thin, TSOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Type:
- Monitor
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 0.9V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 5ms Typical
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-8
TPS37041BPLEDDFRQ1 FAQ
1.How can I place an order for TPS37041BPLEDDFRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS37041BPLEDDFRQ1 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 TPS37041BPLEDDFRQ1 reliable?
The price and inventory of TPS37041BPLEDDFRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS37041BPLEDDFRQ1 is usually 5 days.
3.What payment methods are accepted for TPS37041BPLEDDFRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS37041BPLEDDFRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS37041BPLEDDFRQ1?
TPS37041BPLEDDFRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS37041BPLEDDFRQ1 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 TPS37041BPLEDDFRQ1?
For technical support, including TPS37041BPLEDDFRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS37041BPLEDDFRQ1 requirements.
6.How does Aetrix verify that TPS37041BPLEDDFRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS37041BPLEDDFRQ1 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 TPS37041BPLEDDFRQ1 meets industry standards.
7.What is the process for return or replacement of TPS37041BPLEDDFRQ1?
All TPS37041BPLEDDFRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS37041BPLEDDFRQ1, 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 TPS37041BPLEDDFRQ1 part is unused and in its original packaging.
Return procedure for TPS37041BPLEDDFRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS37041BPLEDDFRQ1 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…
