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Texas Instruments TPS3702CX10QDDCRQ1
- Part No.:
- TPS3702CX10QDDCRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
TPS3702CX10QDDCRQ1.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:8,306
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Product details
Overview
TPS3702CX10QDDCRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive window voltage detector IC that monitors supply rails from 1V to 5V with ±0.9% threshold accuracy over –40°C to 125°C, 0.55% internal hysteresis, and dual open-drain UV/OV outputs-used in safety-critical power supervision for ADAS cameras and radar systems.
For engineers reviewing the TPS3702CX10QDDCRQ1 datasheet, TPS3702CX10QDDCRQ1 pinout, TPS3702CX10QDDCRQ1 application, or TPS3702CX10QDDCRQ1 equivalent, key selection criteria include its fixed ±10% nominal window (configurable via SET pin), 7µA quiescent current, SOT-6 package, and independent UV/OV fault signaling for ISO 26262-compliant system monitoring.
Technical Context
The TPS3702CX10QDDCRQ1 integrates two precision comparators and a trimmed internal resistor divider to implement a window detection function without external components. Its VIT–(UV) and VIT+(OV) thresholds are factory-set for ±10% nominal rails, with worst-case accuracy of ±0.9% over temperature and ±0.25% typical.
It operates across a 2V–18V VDD range while monitoring SENSE inputs up to 6.5V, supports wired-OR output merging, and features glitch immunity with 300µs startup delay and 19µs/35µs UV/OV propagation delays under defined overdrive conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2V to 18V - powers device independently of monitored rail; enables use with 12V automotive battery or low-voltage MCU supplies. |
| Threshold Accuracy | ±0.9% (–40°C to 125°C) - ensures reliable trip points across full automotive ambient range without calibration. |
| Internal Hysteresis | 0.55% - prevents false resets during marginal supply fluctuations near threshold boundaries. |
| Quiescent Current | 7µA (typical) - minimizes standby power draw in always-on vehicle subsystems like camera ECU. |
| Output Type | Open-drain UV & OV - allows flexible pull-up to 18V logic levels and wired-OR fault aggregation. |
| SET Pin Function | Selects ±10% nominal window - configures fixed threshold band optimized for 1V–5V rails without external resistors. |
| Startup Delay | 300µs - guarantees stable internal reference before enabling valid output states after VDD ramp. |
Pinout & Package
SOT-6 (DDC) package, 2.90mm × 1.60mm body size, surface-mount, thermally enhanced for automotive under-hood environments.
| 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 | Primary return path for internal circuitry and comparator bias; must be low-impedance connection. |
| 3 - SENSE | Monitored supply input | Accepts 0–6.5V rail voltage; high-impedance (1.5µA max input current) for minimal loading. |
| 4 - SET | Window configuration input | Logic-level control: ≤250mV selects ±10% nominal window; ≥750mV selects ±4% (not applicable to CX10 variant). |
| 5 - VDD | Device supply input | Powers internal reference and comparators; accepts 2–18V; requires local 0.1µF ceramic bypass. |
| 6 - OV | Active-low overvoltage output | Drives low when SENSE exceeds VIT+(OV); electrically isolated from UV; supports independent fault reporting. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to 125°C ambient operation, meeting automotive reliability and ESD requirements (HBM ±2kV, CDM ±750V). |
| No external resistor network | Internal trimmed divider eliminates component count, layout area, and tolerance-induced accuracy degradation in production BOMs. |
| Dual independent fault outputs | Separate UV and OV pins enable distinct system responses-e.g., graceful shutdown on UV, immediate isolation on OV-per ASIL-B design needs. |
| Glitch-immune timing architecture | 300µs startup delay and controlled propagation delays (19µs HL / 35µs LH) prevent spurious resets from transient noise on SENSE line. |
| Redundant supply sensing | Dedicated SENSE and VDD pins allow monitoring of different rails-critical for functional safety architectures requiring independence between supply and supervision paths. |
Applications
| Front Camera Power Supervision | Radar ECU Voltage Monitoring |
|---|---|
Use Scenario: Monitors 1.2V and 3.3V rails powering image sensor and ISP in automotive front-facing ADAS camera modules. IC Role / Device Role / Timing Role: Window voltage detector asserting independent UV/OV signals to SoC reset controller upon rail deviation beyond ±10%. Use Value: Prevents corrupted image capture or thermal runaway by triggering safe state entry within 35µs of overvoltage event on 3.3V domain. | Use Scenario: Supervises 5V analog supply and 1.8V digital core rail in 77GHz radar transceiver ECU operating in engine bay. IC Role / Device Role / Timing Role: Dual-threshold detector with SENSE/VDD separation provides fault isolation per ISO 26262 ASIL-B decomposition requirements. Use Value: Enables diagnostic coverage >90% for power supply faults via separate UV/OV reporting, reducing need for redundant supervisors. |
| Infotainment System Reset Management | FPGA Configuration Rail Monitoring |
Use Scenario: Ensures clean power-up sequencing and brownout recovery for multi-rail infotainment head unit with 1.1V, 1.8V, and 3.3V domains. IC Role / Device Role / Timing Role: Fixed ±10% window detector generating synchronized reset pulses to application processor and audio codec on undervoltage condition. Use Value: Eliminates need for discrete RC-based POR circuits; reduces board space by 40% versus dual discrete supervisor solution. | Use Scenario: Guards 2.5V configuration voltage rail feeding FPGA I/O banks in automotive gateway module. IC Role / Device Role / Timing Role: High-accuracy window monitor detecting ±10% excursions with 0.55% hysteresis to avoid metastability during partial reconfiguration. Use Value: Guarantees FPGA configuration integrity by asserting OV signal before rail reaches 2.75V-preventing bitstream corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window voltage detection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3702CX05QDDCRQ1 | Fixed ±5% nominal window; same accuracy, package, and pinout. | Used where tighter tolerance required (e.g., 1.8V core rail with ±5% spec). | Select when nominal rail tolerance is stricter than ±10%; no PCB change needed. |
| TLV809EYZTR | Single-channel undervoltage detector only; no overvoltage capability; 1.6V–6V VDD range. | Applicable only for UV-only monitoring; lacks window functionality and automotive qualification. | Use only if overvoltage detection is unnecessary and AEC-Q100 not required. |
Compared with TPS3702CX10QDDCRQ1, the CX05 variant offers higher precision for narrower rails but identical footprint and interface, while TLV809EYZTR sacrifices window detection and automotive compliance for cost-sensitive non-safety applications.
Availability
TPS3702CX10QDDCRQ1 is available at Aetrix Electronics and suitable for automotive radar systems, ADAS camera modules, and infotainment ECUs requiring stable component supply with full AEC-Q100 traceability and long-term lifecycle support.
Supply support for TPS3702CX10QDDCRQ1 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 delivering analog and embedded processing solutions, with leadership in automotive, industrial, and power management ICs.
The TPS3702-Q1 product line delivers high-accuracy, AEC-Q100 qualified window voltage detectors for functional safety-critical automotive power monitoring-including camera, radar, and domain controller applications.
FAQ
What is the nominal voltage window configured for TPS3702CX10QDDCRQ1?
The TPS3702CX10QDDCRQ1 is factory-configured for a ±10% nominal window-meaning it asserts UV when the monitored rail falls below 90% of its nominal value and OV when it rises above 110%. This applies to nominal rails from 1V to 5V, with worst-case threshold accuracy of ±0.9% over –40°C to 125°C. The SET pin is internally tied to select this band and does not require external biasing for standard operation.
Does TPS3702CX10QDDCRQ1 require external resistors to set thresholds?
No, TPS3702CX10QDDCRQ1 does not require external resistors. It integrates a precision trimmed resistor divider and reference, enabling fixed ±10% window detection without external components. This eliminates resistor tolerance errors, reduces BOM count, and improves overall system accuracy-confirmed in TI's SBVS261C datasheet Section 6.1 and Figure 6-1.
Can TPS3702CX10QDDCRQ1 monitor a rail higher than its VDD supply?
Yes, TPS3702CX10QDDCRQ1 can monitor a SENSE rail up to 6.5V while powered from a lower VDD (as low as 2V). The SENSE pin is electrically isolated from VDD, supporting independent rail monitoring-e.g., supervising a 5V analog supply using a 3.3V VDD derived from a separate LDO. This capability is explicitly specified in Section 5.3 (Recommended Operating Conditions) and Section 6.3.1 of the datasheet.
What is the maximum sink current capability of the UV and OV outputs on TPS3702CX10QDDCRQ1?
The UV and OV outputs of TPS3702CX10QDDCRQ1 each support up to 10mA sink current, with VOL ≤ 250mV at IOUT = 5mA and VDD ≥ 5V. This allows direct interfacing with common 3.3V or 5V logic inputs and compatibility with pull-up voltages up to 18V-enabling robust fault signaling across mixed-voltage automotive subsystems per Section 5.5 Electrical Characteristics.
Is TPS3702CX10QDDCRQ1 qualified for automotive safety standards beyond AEC-Q100?
TPS3702CX10QDDCRQ1 is AEC-Q100 Grade 1 qualified (–40°C to 125°C ambient), with HBM ±2kV and CDM ±750V ESD ratings. While it is not ISO 26262-certified as a standalone element, its dual independent outputs, internal redundancy (separate SENSE/VDD), and diagnostic features (glitch immunity, hysteresis, startup delay) support ASIL-B system-level compliance when integrated into properly architected safety mechanisms per TI's functional safety documentation (TISAFETY-REPORT-TPS3702).
TPS3702CX10QDDCRQ1 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:
- 1V
- 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
TPS3702CX10QDDCRQ1 FAQ
1.How can I place an order for TPS3702CX10QDDCRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS3702CX10QDDCRQ1 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 TPS3702CX10QDDCRQ1 reliable?
The price and inventory of TPS3702CX10QDDCRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS3702CX10QDDCRQ1 is usually 5 days.
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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS3702CX10QDDCRQ1 transactions.
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TPS3702CX10QDDCRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS3702CX10QDDCRQ1 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 TPS3702CX10QDDCRQ1?
For technical support, including TPS3702CX10QDDCRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS3702CX10QDDCRQ1 requirements.
6.How does Aetrix verify that TPS3702CX10QDDCRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS3702CX10QDDCRQ1 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 TPS3702CX10QDDCRQ1 meets industry standards.
7.What is the process for return or replacement of TPS3702CX10QDDCRQ1?
All TPS3702CX10QDDCRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS3702CX10QDDCRQ1, 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 TPS3702CX10QDDCRQ1 part is unused and in its original packaging.
Return procedure for TPS3702CX10QDDCRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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