My Inquiry
My Account
Texas Instruments TPS3702CX33QDDCRQ1
- Part No.:
- TPS3702CX33QDDCRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
TPS3702CX33QDDCRQ1.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:754
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS3702CX33QDDCRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive window voltage detector IC 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 and OV outputs, and operates from 2V to 18V supply for safety-critical power rail supervision in ADAS front cameras.
For engineers reviewing the TPS3702CX33QDDCRQ1 datasheet, TPS3702CX33QDDCRQ1 pinout, TPS3702CX33QDDCRQ1 application, or TPS3702CX33QDDCRQ1 equivalent, key selection considerations include its dual-band SET-pin configurability, internal resistor-divider architecture eliminating external components, 7µA typical quiescent current, SOT-6 package footprint, and guaranteed glitch immunity for automotive reset integrity.
Technical Context
The TPS3702CX33QDDCRQ1 integrates two precision comparators with a trimmed internal resistor divider and reference to implement a fully self-contained window voltage detection function. Its SENSE input accepts up to 6.5V independent of VDD, enabling monitoring of rails not tied to the device supply.
It uses active-low open-drain outputs (UV and OV) with 10mA sink capability and 18V pull-up compatibility, supports wired-OR logic merging, and incorporates 0.55% or 1.0% internal hysteresis selectable via the SET pin's logic level-ensuring stable operation without external hysteresis components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2V to 18V - powers device from wide-input automotive supplies without external regulators |
| Threshold Accuracy | ±0.25% (typ), ±0.9% (–40°C to 125°C) - enables precise 3.3V rail monitoring within ±4.9% worst-case window |
| Quiescent Current | 7µA (typ) - minimizes standby power draw in always-on vehicle systems |
| Hysteresis Options | 0.55% or 1.0% - prevents chatter during slow-ramping or noisy supply transitions |
| Output Type | Independent open-drain UV/OV - allows flexible pull-up to 18V and wired-OR fault signaling |
| Propagation Delay | 19µs (HL), 35µs (LH) - ensures timely response to rail excursions while rejecting sub-µs transients |
| AEC-Q100 Grade | Grade 1 (–40°C to 125°C ambient) - qualified for under-hood and ADAS module deployment |
Pinout & Package
SOT-6 (DDC) package, 2.90mm × 1.60mm body size, surface-mount, thermally enhanced for automotive environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| UV | Active-low undervoltage output | Drives low when SENSE falls below VIT–(UV); requires external pull-up for CMOS/LVCMOS interface |
| GND | Ground reference | Common return path for internal circuitry and output sink current |
| SENSE | Monitored rail input | Accepts 0–6.5V rail voltage; internally compared against precision thresholds without external resistors |
| SET | Accuracy band select input | Logic-high (≥750mV) selects ±4% nominal window; logic-low (≤250mV) selects ±9% nominal window |
| VDD | Device supply input | 2–18V power source; decoupling capacitor required per analog design best practice |
| OV | Active-low overvoltage output | Drives low when SENSE exceeds VIT+(OV); electrically isolated from UV for independent fault reporting |
Key Features
| Feature | Design Value |
|---|---|
| No external resistors needed | Internal trimmed resistor divider eliminates BOM count, layout area, and tolerance-induced accuracy loss |
| User-configurable window | SET pin toggles between ±4% and ±9% nominal thresholds-enabling startup margin relaxation and runtime tightening |
| Redundant sensing architecture | Dedicated SENSE and VDD pins support functional safety designs requiring independent power and monitoring paths |
| Glitch-immune timing | 300µs startup delay and built-in noise filtering prevent false resets from ESD or load-switch transients |
| Automotive-grade reliability | AEC-Q100 Grade 1, HBM ±2kV, CDM ±750V - validated for 15-year automotive service life |
Applications
| Front Camera Power Supervision | Radar Module Rail Monitoring |
|---|---|
Use Scenario: Monitors 3.3V image sensor and ISP supply in automotive front-facing camera modules during cold cranking and load dump events. IC Role / Device Role / Timing Role: Window voltage detector asserting UV/OV faults to SoC reset controller upon rail deviation beyond ±4.9%. Use Value: Prevents corrupted image capture or firmware lockup by triggering controlled reset before voltage excursion causes digital logic failure. | Use Scenario: Supervises 1.8V and 3.3V LDO outputs powering RF transceivers and DSPs in 77GHz radar ECUs. IC Role / Device Role / Timing Role: Dual-threshold detector providing independent over/under alerts to MCU watchdog timer with <35µs response latency. Use Value: Enables early fault isolation and graceful shutdown before RF calibration drift or ADC saturation occurs. |
| Infotainment System Core Rail | FPGA Configuration Voltage |
Use Scenario: Guards 3.3V main domain processor rail in head-unit systems where brownout must be distinguished from transient noise. IC Role / Device Role / Timing Role: Precision window comparator with 0.55% hysteresis ensuring no false resets during HVAC compressor switching noise. Use Value: Maintains system uptime by rejecting 100ns–1µs spikes while detecting sustained 50ms undervoltage events. | Use Scenario: Validates 3.3V configuration voltage prior to FPGA bitstream loading in ADAS domain controllers. IC Role / Device Role / Timing Role: High-accuracy supervisor holding FPGA in reset until rail stabilizes within ±4% window with 300µs startup delay. Use Value: Eliminates configuration errors and bitstream corruption caused by premature release from power-on reset. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3702CX18QDDCRQ1 | Fixed ±4% nominal window for 1.8V rails; identical accuracy, package, and feature set | Optimized for 1.8V core supplies-not configurable for 3.3V monitoring without external scaling | Select when supervising 1.8V ASIC/DSP rails with same automotive qualification and timing specs |
| TLV809E33DBVR | Single-channel 3.3V reset IC with 2% threshold accuracy, no overvoltage detection, no SET pin | Provides only undervoltage reset-lacks window functionality, hysteresis control, and OV fault reporting | Choose only for cost-sensitive non-safety applications requiring basic 3.3V brownout protection without overvoltage coverage |
Compared with TPS3702CX33QDDCRQ1, the TPS3702CX18QDDCRQ1 offers identical automotive performance but targets 1.8V rails, while TLV809E33DBVR provides lower-cost undervoltage-only reset at reduced accuracy and no window capability-making TPS3702CX33QDDCRQ1 uniquely suited for AEC-Q100-compliant dual-threshold 3.3V rail supervision.
Availability
TPS3702CX33QDDCRQ1 is available at Aetrix Electronics and suitable for automotive ADAS front cameras, radar modules, infotainment head-units, and FPGA-based domain controllers requiring stable component supply across extended temperature and long-life production cycles.
Supply support for TPS3702CX33QDDCRQ1 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, embedded processing, and connectivity technologies for industrial, automotive, and personal electronics markets.
The TPS3702-Q1 product line delivers AEC-Q100-qualified window voltage detectors optimized for functional safety-critical power rail supervision in automotive ADAS, infotainment, and domain controller applications.
FAQ
What is the nominal monitored voltage range supported by the TPS3702CX33QDDCRQ1?
The TPS3702CX33QDDCRQ1 is specifically designed for 3.3V nominal supply rails. Its internal thresholds are factory-trimmed to deliver ±4% or ±9% windows around 3.3V, enabling accurate detection of excursions down to 3.139V (worst-case UV) and up to 3.463V (worst-case OV) across –40°C to 125°C ambient.
How does the SET pin configure the accuracy band on the TPS3702CX33QDDCRQ1?
The SET pin on the TPS3702CX33QDDCRQ1 selects between two fixed window options: applying ≥750mV sets a ±4% nominal window (e.g., 3.168V–3.432V), while ≤250mV selects a ±9% window (e.g., 3.003V–3.597V). This is implemented via internal logic that switches between two pre-trimmed resistor-divider ratios-no external components or programming are required.
Can the TPS3702CX33QDDCRQ1 monitor voltages higher than its VDD supply?
Yes-the SENSE input of the TPS3702CX33QDDCRQ1 accepts up to 6.5V regardless of VDD, which may range from 2V to 18V. This allows direct monitoring of higher-voltage rails (e.g., 5V or 6V supplies) while powering the TPS3702CX33QDDCRQ1 from a lower auxiliary rail, supporting flexible power architecture partitioning in automotive ECUs.
What is the maximum sink current capability of the UV and OV outputs on the TPS3702CX33QDDCRQ1?
The UV and OV outputs of the TPS3702CX33QDDCRQ1 each support up to 10mA sink current at VOL ≤ 250mV, verified across VDD = 1.3V to 5V and load conditions. This enables direct interfacing with standard CMOS inputs, microcontroller reset pins, and enable terminals of DC-DC converters without additional buffering.
Does the TPS3702CX33QDDCRQ1 require external hysteresis components?
No-the TPS3702CX33QDDCRQ1 integrates factory-trimmed hysteresis of either 0.55% or 1.0% (selected by SET pin state), eliminating the need for external resistors or capacitors. This ensures consistent noise immunity and prevents output oscillation near threshold crossings-critical for reliable reset generation in electrically noisy automotive environments.
TPS3702CX33QDDCRQ1 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
TPS3702CX33QDDCRQ1 FAQ
1.How can I place an order for TPS3702CX33QDDCRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS3702CX33QDDCRQ1 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 TPS3702CX33QDDCRQ1 reliable?
The price and inventory of TPS3702CX33QDDCRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS3702CX33QDDCRQ1 is usually 5 days.
3.What payment methods are accepted for TPS3702CX33QDDCRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS3702CX33QDDCRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS3702CX33QDDCRQ1?
TPS3702CX33QDDCRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS3702CX33QDDCRQ1 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 TPS3702CX33QDDCRQ1?
For technical support, including TPS3702CX33QDDCRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS3702CX33QDDCRQ1 requirements.
6.How does Aetrix verify that TPS3702CX33QDDCRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS3702CX33QDDCRQ1 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 TPS3702CX33QDDCRQ1 meets industry standards.
7.What is the process for return or replacement of TPS3702CX33QDDCRQ1?
All TPS3702CX33QDDCRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS3702CX33QDDCRQ1, 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 TPS3702CX33QDDCRQ1 part is unused and in its original packaging.
Return procedure for TPS3702CX33QDDCRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS3702CX33QDDCRQ1 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…
