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STMicroelectronics TSX3702IDT
- Part No.:
- TSX3702IDT
- Manufacturer:
- STMicroelectronics
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TSX3702IDT.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:36,197
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Product details
Overview
TSX3702IDT from STMicroelectronics is a micropower CMOS dual voltage comparator with 5 µA typical supply current per comparator, 1 pA typical input bias current, and push-pull output stage. It operates from 2.7 V to 16 V single supply (or ±1.35 V to ±8 V dual), supports rail-to-rail input common-mode range including ground, and is qualified for automotive applications (-40 °C to +125 °C) in SO8 package.
For engineers reviewing the TSX3702IDT datasheet, TSX3702IDT pinout, TSX3702IDT application, or TSX3702IDT equivalent, key selection criteria include ultra-low quiescent current, guaranteed input overvoltage tolerance beyond VCC+, fast 2.7 µs response at 5 mV overdrive, and AEC-Q100-compliant automotive grade availability.
Technical Context
The TSX3702IDT integrates two independent high-impedance comparators with ESD-protected inputs capable of accepting voltages from -0.3 V to 16 V regardless of VCC+. Its internal schematic includes dedicated ESD clamps on each input, enabling robust operation in noisy automotive sensor interfaces where input transients exceed supply rails.
It features rail-to-rail push-pull outputs delivering 4 mA sink/source capability with low output voltage drops (90–400 mV depending on supply and load), and maintains stable propagation delay across 3 V to 16 V supply range - tPLH/tPHL vary from 2.7 µs at 3 V to 0.34 µs at 16 V under 5 mV overdrive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 2.7 V to 16 V single supply - enables direct interface with 3.3 V, 5 V, and 12 V automotive subsystems without level-shifting. |
| Quiescent current | 5 µA typ. per comparator - allows battery-powered systems to achieve multi-year standby life in wake-up monitoring circuits. |
| Input bias current | 1 pA typ. - preserves signal integrity in high-impedance sensor front-ends (e.g., thermistors, photodiodes) without loading. |
| Input common-mode range | 0 V to VCC+ − 1.5 V, with one input extendable to −0.3 V or 16 V - supports direct connection to sensors operating outside supply rails. |
| Response time | 2.7 µs typ. at 5 mV overdrive - provides sufficient speed for window comparators in motor phase detection or battery cell monitoring. |
| Output type | Push-pull - eliminates need for external pull-up resistors, reducing BOM count and PCB area in space-constrained modules. |
| ESD tolerance | 4 kV HBM, 200 V MM - meets automotive system-level ESD immunity requirements without additional protection circuitry. |
Pinout & Package
TSX3702IDT is packaged in SO8 (plastic micropackage), compliant with ECOPACK environmental standards. Pinout is standardized across all TSX3702 variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Comparator 1 output | Push-pull output capable of sourcing/sinking 4 mA; logic-high ≈ VCC+, logic-low ≈ 0 V. |
| 2 (IN1−) | Comparator 1 inverting input | High-impedance node (10¹² Ω); accepts −0.3 V to 16 V regardless of VCC+. |
| 3 (IN1+) | Comparator 1 non-inverting input | Same electrical characteristics as IN1−; differential input voltage range ±18 V. |
| 4 (VCC−) | Negative supply / ground reference | Connect to system ground (0 V) in single-supply operation; supports dual-supply down to ±1.35 V. |
| 5 (VCC+) | Positive supply | Accepts 2.7 V to 16 V; powers both comparators and defines output swing limits. |
| 6 (IN2−) | Comparator 2 inverting input | Independent, identical to IN1−; no crosstalk between channels confirmed in datasheet. |
| 7 (IN2+) | Comparator 2 non-inverting input | Independent, identical to IN1+; enables dual-threshold or window comparator configurations. |
| 8 (OUT2) | Comparator 2 output | Functionally identical to OUT1; fully decoupled output stage prevents interaction during switching. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 5 µA per comparator at 25 °C - enables always-on voltage monitoring in energy-harvesting and low-power IoT nodes. |
| Extended input voltage range | Inputs tolerate −0.3 V to 16 V independent of VCC+ - simplifies interfacing with legacy 12 V sensors in modern 3.3 V microcontroller systems. |
| Automotive qualification | AEC-Q100 Grade 1 (−40 °C to +125 °C) - certified for engine control, body electronics, and ADAS sensor signal conditioning. |
| High-speed response | 0.34 µs propagation delay at 16 V and 100 mV overdrive - supports precise timing in PWM feedback loops and overvoltage latch circuits. |
| Low input offset voltage | ±5 mV max at 25 °C - ensures accurate threshold detection in precision battery-cell voltage monitoring and temperature sensing. |
Applications
| Engine Coolant Temperature Monitoring | Battery Cell Overvoltage Protection |
|---|---|
Use Scenario: Detect coolant temperature thresholds using NTC thermistor divider to trigger fan activation or dashboard warning. IC Role / Device Role / Timing Role: Dual comparator implements hysteresis-based window detection on thermistor voltage, rejecting noise while maintaining thermal stability. Use Value: 1 pA input bias avoids thermistor measurement error; rail-to-rail input accommodates full 0–5 V sensor range without external op-amp buffering. |
Use Scenario: Monitor individual Li-ion cell voltages in EV battery packs to prevent overcharge above 4.25 V. IC Role / Device Role / Timing Role: One comparator compares cell voltage against precision reference; second enables hysteresis for clean trip/release behavior. Use Value: 5 µA quiescent current minimizes self-discharge during pack idle state; 4 kV HBM withstands assembly ESD events without damage. |
| Automotive Door Lock Actuator Control | Industrial PLC Input Signal Conditioning |
Use Scenario: Convert mechanical switch closure into clean digital signal for body control module, immune to contact bounce and EMI. IC Role / Device Role / Timing Role: Comparator with external RC filter acts as debounced digital input; push-pull output drives MCU GPIO directly. Use Value: 2.7 µs response ensures <10 µs total latency; input overvoltage tolerance handles 12 V switch transients without clamping diodes. |
Use Scenario: Interface 0–10 V analog sensor signals to 3.3 V industrial microcontrollers requiring level-shifted and noise-immune digital alerts. IC Role / Device Role / Timing Role: Dual comparator converts analog thresholds into discrete alarm states (e.g., low/high pressure) with independent hysteresis. Use Value: SO8 package supports automated optical inspection; 10¹² Ω input impedance prevents loading of high-Z sensor outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS3702CDT | Higher 10 µA typical supply current; ±6 mV max input offset; lower 2 kV HBM rating. | Lacks AEC-Q100 qualification; rated only for industrial temperature range (−40 °C to +85 °C). | Select when cost sensitivity outweighs automotive qualification and ultra-low power demands. |
| LMV393IDR | 30 µA typical supply current; rail-to-rail input but not output; 7 V max supply; 500 mV VOL at 4 mA. | Not automotive-qualified; lacks input overvoltage tolerance beyond VCC+; requires pull-up for open-drain output. | Choose for non-automotive 3.3 V/5 V systems where higher speed (400 ns) justifies increased current draw. |
Compared with TS3702CDT and LMV393IDR, the TSX3702IDT uniquely combines automotive qualification, sub-6 µA quiescent current, push-pull output, and input overvoltage tolerance - making it the only option suitable for safety-critical, battery-sensitive, and harsh-environment dual-comparator functions.
Availability
TSX3702IDT is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and battery management systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSX3702IDT 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing silicon solutions for automotive, industrial, and consumer markets since 1987.
The TSX3702 belongs to ST's precision analog comparator product line, engineered specifically for ultra-low-power, high-reliability signal conditioning in automotive and industrial environments where supply constraints and ESD robustness are critical.
FAQ
Can TSX3702IDT operate with a single 3.3 V supply?
Yes. The TSX3702IDT is fully specified from 2.7 V to 16 V single supply. At 3.3 V, it delivers 5 µA typical supply current, 2.4 µs response time at 5 mV overdrive, and maintains rail-to-rail input common-mode range (0 V to 1.8 V), making it ideal for 3.3 V microcontroller-based systems.
Does TSX3702IDT require external pull-up resistors on its outputs?
No. TSX3702IDT features true push-pull outputs capable of sourcing and sinking up to 4 mA. Unlike open-drain comparators, it drives high and low actively without external pull-up components, reducing component count and board area in compact designs.
What is the maximum input voltage the TSX3702IDT can tolerate when VCC+ = 3.3 V?
The inputs tolerate −0.3 V to 16 V regardless of VCC+ value. When VCC+ = 3.3 V, an input of 12 V will forward-bias the internal ESD clamp diode, drawing only ~0.2 nA leakage at 25 °C - safe and functional without external protection.
Is TSX3702IDT pin-compatible with TS3702CDT?
Yes. TSX3702IDT uses the same SO8 footprint and identical pinout as TS3702CDT. It is a drop-in upgrade offering lower supply current (5 µA vs. 10 µA), improved ESD rating (4 kV vs. 2 kV HBM), and extended temperature range (−40 °C to +125 °C vs. −40 °C to +85 °C).
TSX3702IDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 16V
- :
- 5mV @ 5V
- Voltage - Input Offset (Max):
- 10pA
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 8µA
- Current - Quiescent (Max):
- 85dB CMRR, 89dB PSRR
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
TSX3702IDT FAQ
1.How can I place an order for TSX3702IDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSX3702IDT 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 TSX3702IDT reliable?
The price and inventory of TSX3702IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSX3702IDT is usually 5 days.
3.What payment methods are accepted for TSX3702IDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSX3702IDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSX3702IDT?
TSX3702IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSX3702IDT 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 TSX3702IDT?
For technical support, including TSX3702IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSX3702IDT requirements.
6.How does Aetrix verify that TSX3702IDT is sourced from the original manufacturer or authorized distributors?
All TSX3702IDT 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 TSX3702IDT meets industry standards.
7.What is the process for return or replacement of TSX3702IDT?
All TSX3702IDT units undergo pre-shipment inspection (PSI). If there is an issue with TSX3702IDT, 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 TSX3702IDT part is unused and in its original packaging.
Return procedure for TSX3702IDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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