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Texas Instruments TPS3702AX33QDDCRQ1
- Part No.:
- TPS3702AX33QDDCRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
TPS3702AX33QDDCRQ1.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,589
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Product details
Overview
TPS3702AX33QDDCRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive window voltage detector that monitors 3.3V nominal rails with ±4% or ±9% user-selectable accuracy bands, delivers 0.9% total threshold accuracy over –40°C to 125°C, features independent open-drain UV/OV outputs, and consumes only 7µA typical supply current. It enables precise power-rail supervision in safety-critical ADAS camera modules.
For engineers reviewing the TPS3702AX33QDDCRQ1 datasheet, TPS3702AX33QDDCRQ1 pinout, TPS3702AX33QDDCRQ1 application, or TPS3702AX33QDDCRQ1 equivalent, key selection considerations include its dual-threshold hysteresis (0.55%/1.0%), SENSE input range up to 6.5V independent of VDD, SET-pin configurability, and automotive-grade ESD robustness (HBM ±2kV, CDM ±750V).
Technical Context
The TPS3702AX33QDDCRQ1 integrates two precision comparators and a trimmed internal resistor divider to implement a fixed-window voltage detection function without external components. Its SENSE pin accepts up to 6.5V regardless of VDD (2–18V), enabling rail monitoring across diverse supply domains.
Thresholds are factory-set for 3.3V nominal rails and selected between ±4% and ±9% bands via the SET pin's logic level (VIH = 750mV, VIL = 250mV). Each output-UV and OV-is independently configured as active-low open-drain with 10mA sink capability and 18V pull-up compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | VDD = 2V to 18V - powers device from wide-input automotive supplies while supporting isolated monitoring of lower-voltage rails |
| SENSE Input Range | 0V to 6.5V - allows direct monitoring of 3.3V rails without external attenuation or level-shifting |
| Threshold Accuracy | ±0.9% over –40°C to 125°C - ensures reliable fault detection under full automotive temperature stress |
| Hysteresis Options | 0.55% or 1.0% - prevents chatter during marginal voltage transitions near trip points |
| Quiescent Current | 7µA typical - minimizes parasitic drain on always-on vehicle subsystems |
| Output Type | Independent open-drain UV/OV - supports wired-OR reset merging and flexible interface voltage translation |
| Propagation Delay | 19µs (HL), 35µs (LH) - provides fast response to overvoltage/undervoltage events with deterministic timing |
Pinout & Package
SOT-6 (DDC) package, 2.90mm × 1.60mm body size, surface-mount, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - UV | Active-low undervoltage output | Drives low when SENSE falls below VIT–(UV); requires external pull-up; sinks up to 10mA |
| 2 - GND | Ground reference | Analog and digital ground return; must be low-impedance connection to system ground plane |
| 3 - SENSE | Monitored rail input | Accepts 0–6.5V DC; high-impedance (1.5µA max) for minimal loading on monitored supply |
| 4 - SET | Accuracy band select input | Logic-high (≥750mV) selects ±4% band; logic-low (≤250mV) selects ±9% band |
| 5 - VDD | Device supply input | 2–18V operating range; decoupling capacitor (0.1µF ceramic) required adjacent to pin |
| 6 - OV | Active-low overvoltage output | Drives low when SENSE exceeds VIT+(OV); electrically identical to UV pin |
Key Features
| Feature | Design Value |
|---|---|
| User-configurable accuracy band | SET pin selects ±4% or ±9% nominal window - enables adaptive supervision during startup vs. steady-state operation |
| No external resistors required | Internal trimmed resistor divider - eliminates component count, layout area, and tolerance-induced error in threshold setting |
| Independent UV/OV outputs | Separate open-drain pins - allows discrete fault reporting or wired-OR reset generation without external logic |
| Automotive qualification | AEC-Q100 Grade 1 (–40°C to 125°C ambient), HBM ±2kV, CDM ±750V - certified for safety-critical vehicle systems |
| Glitch-immune timing | 300µs startup delay + internal noise filtering - rejects transient spikes and ensures stable reset assertion |
Applications
| Rear-View Camera Power Supervision | Front Camera Sensor Reset Control |
|---|---|
Use Scenario: Monitors 3.3V bias rail powering image sensor and serializer IC in rear-view camera module. IC Role / Device Role / Timing Role: Window voltage detector asserting independent UV/OV signals to MCU reset controller upon rail deviation beyond ±4%. Use Value: Prevents corrupted image capture by triggering clean reset before analog front-end enters undefined state. | Use Scenario: Supervises 3.3V I/O supply for front-facing ADAS camera processor and MIPI interface. IC Role / Device Role / Timing Role: Generates synchronized reset pulse via wired-OR UV+OV outputs when supply drifts outside ±4% window. Use Value: Ensures deterministic boot sequence and avoids MIPI lane synchronization failure due to marginal supply. |
| FPGA Configuration Voltage Monitoring | Radar SoC Core Rail Protection |
Use Scenario: Validates 3.3V configuration voltage for automotive FPGA used in domain controller. IC Role / Device Role / Timing Role: Detects undervoltage condition on CONFIG_VCC and asserts UV output to halt bitstream loading. Use Value: Avoids partial configuration and functional lockup by halting FPGA initialization before voltage stabilizes. | Use Scenario: Guards 3.3V core supply of 77GHz radar SoC against brownout during ECU load transients. IC Role / Device Role / Timing Role: Triggers immediate OV/UV reset using 0.55% hysteresis to prevent timing violation in RF signal chain. Use Value: Maintains radar object detection integrity by eliminating intermittent clock domain faults caused by supply droop. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV809E33DBVRQ1 | Single-threshold (undervoltage-only), no SET pin, no OV output, 1.5% accuracy | Lacks overvoltage detection and configurable window; suitable only for basic UV reset | Select when only undervoltage protection is needed and cost sensitivity outweighs dual-threshold requirement |
| TPS3700DQDBVRQ1 | Single comparator, requires external resistor network for thresholds, 0.5% accuracy, no SET pin | Higher design effort for accuracy tuning; no built-in hysteresis selection; no automotive window mode | Choose when custom threshold ratios are required and board space permits external resistors |
Compared with TLV809E33DBVRQ1 and TPS3700DQDBVRQ1, the TPS3702AX33QDDCRQ1 uniquely delivers factory-trimmed dual-threshold detection with user-selectable bandwidth, eliminating external components while meeting AEC-Q100 Grade 1 requirements for integrated ADAS power supervision.
Availability
TPS3702AX33QDDCRQ1 is available at Aetrix Electronics and suitable for automotive radar systems, front/rear camera modules, and FPGA-based domain controllers requiring stable component supply across extended temperature and long production lifecycles.
Supply support for TPS3702AX33QDDCRQ1 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 designing analog ICs, embedded processors, and connectivity solutions for industrial, automotive, and consumer markets.
The TPS3702-Q1 product line delivers AEC-Q100 qualified window voltage detectors optimized for automotive safety-critical power-rail monitoring, with emphasis on accuracy, low quiescent current, and simplified system-level reset architecture.
FAQ
What is the nominal monitored voltage for TPS3702AX33QDDCRQ1?
The TPS3702AX33QDDCRQ1 is factory-configured for 3.3V nominal rails. Its internal resistor divider sets fixed overvoltage and undervoltage thresholds centered on 3.3V, with user-selectable accuracy bands of ±4% or ±9% via the SET pin. This makes TPS3702AX33QDDCRQ1 ideal for supervising standard automotive I/O and interface supplies without external calibration.
Does TPS3702AX33QDDCRQ1 require external resistors to set thresholds?
No, TPS3702AX33QDDCRQ1 does not require external resistors. It integrates a precision trimmed resistor divider and reference circuit, enabling accurate window detection directly from the SENSE pin. This eliminates component count, layout complexity, and resistor tolerance errors - a key differentiator versus general-purpose comparators like TPS3700DQDBVRQ1.
How does the SET pin affect TPS3702AX33QDDCRQ1 operation?
The SET pin configures the accuracy band: applying ≥750mV selects the ±4% nominal window (tighter supervision), while ≤250mV selects the ±9% window (wider margin). This allows dynamic adjustment - for example, relaxing thresholds during cold-start voltage sag and tightening them after stabilization. The TPS3702AX33QDDCRQ1 interprets SET voltage levels independently of VDD or SENSE.
What is the maximum SENSE input voltage for TPS3702AX33QDDCRQ1?
The SENSE pin of TPS3702AX33QDDCRQ1 accepts up to 6.5V DC, with absolute maximum rating of 7.0V. This allows direct monitoring of 3.3V rails without attenuation, and supports higher-voltage rails when used with external resistor dividers. Importantly, SENSE voltage range is independent of VDD, enabling flexible power-domain isolation in multi-rail automotive systems.
Is TPS3702AX33QDDCRQ1 qualified for automotive safety applications?
Yes, TPS3702AX33QDDCRQ1 is AEC-Q100 Grade 1 qualified (–40°C to 125°C ambient), with HBM ESD rating ±2000V and CDM rating ±750V. It is explicitly designed for automotive safety applications including front/rear cameras, radar systems, and ADAS domain controllers - where deterministic reset behavior and long-term reliability under thermal stress are mandatory.
TPS3702AX33QDDCRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Voltage Detector
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3.3V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-THIN
TPS3702AX33QDDCRQ1 FAQ
1.How can I place an order for TPS3702AX33QDDCRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS3702AX33QDDCRQ1 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 TPS3702AX33QDDCRQ1 reliable?
The price and inventory of TPS3702AX33QDDCRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS3702AX33QDDCRQ1 is usually 5 days.
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TPS3702AX33QDDCRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS3702AX33QDDCRQ1 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 TPS3702AX33QDDCRQ1?
For technical support, including TPS3702AX33QDDCRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS3702AX33QDDCRQ1 requirements.
6.How does Aetrix verify that TPS3702AX33QDDCRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS3702AX33QDDCRQ1 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 TPS3702AX33QDDCRQ1 meets industry standards.
7.What is the process for return or replacement of TPS3702AX33QDDCRQ1?
All TPS3702AX33QDDCRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS3702AX33QDDCRQ1, 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 TPS3702AX33QDDCRQ1 part is unused and in its original packaging.
Return procedure for TPS3702AX33QDDCRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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