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Texas Instruments TLC3702QDRG4Q1
- Part No.:
- TLC3702QDRG4Q1
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC3702QDRG4Q1.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,342
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Product details
Overview
TLC3702QDRG4Q1 from Texas Instruments is a dual micropower LinCMOS™ voltage comparator qualified for automotive applications, featuring push-pull CMOS outputs (±8 mA drive), 100 µW typical supply power at 5 V, 2.7 µs typical propagation delay (tPLH) with 5-mV overdrive, and operation across 3 V to 16 V single supply - used in transmission control units and engine control systems.
For engineers reviewing the TLC3702QDRG4Q1 datasheet, TLC3702QDRG4Q1 pinout, TLC3702QDRG4Q1 application, or TLC3702QDRG4Q1 equivalent, key selection criteria include AEC-Q100 Grade 1 qualification (–40°C to +125°C), rail-to-rail input common-mode range (0 to VDD − 1.5 V), low 5 pA typical input bias current at 25°C, and absence of external pullup resistors due to integrated push-pull output stage.
Technical Context
The TLC3702QDRG4Q1 implements two independent comparators using Texas Instruments' LinCMOS™ process, delivering high input impedance (>1012 Ω), ultra-low input bias current (5 pA typ), and stable offset voltage (1.2 mV typ) under large differential inputs. Its push-pull output eliminates need for external pullup resistors while maintaining TTL/CMOS logic compatibility.
It supports single-supply operation from 3 V to 16 V, enabling direct connection to 12-V automotive batteries and robust start-stop functionality. Input protection includes ±2000-V HBM and ±500–750-V CDM ESD ratings per AEC-Q100, with internal current limiting (±5 mA) for inputs exceeding common-mode range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 16 V single supply - enables direct 12-V battery interface and start-stop system compatibility |
| Quiescent Supply Current | 19–40 µA per comparator - achieves 100 µW total power at 5 V, extending battery life in always-on modules |
| Propagation Delay (tPLH) | 2.7 µs typical with 5-mV overdrive - ensures fast response to critical engine/transmission signals |
| Input Offset Voltage | 1.2 mV typical (25°C), 10 mV max (–40°C to +125°C) - maintains accuracy across full automotive temperature range |
| Input Bias Current | 5 pA typical (25°C), 30 nA max (125°C) - preserves signal integrity in high-impedance sensor interfaces |
| Output Drive Capability | ±8 mA push-pull CMOS - drives capacitive loads directly without pullup resistor, saving board space and BOM cost |
| Common-Mode Input Range | 0 V to VDD − 1.5 V - supports wide-swing sensor inputs while avoiding ESD diode conduction |
Pinout & Package
Package: SOIC-8 (D package), body size 4.90 mm × 3.91 mm, surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+ | Non-inverting input, Channel 1 | Accepts reference or sensor signal; high-impedance node requiring minimal loading |
| 1IN− | Inverting input, Channel 1 | Accepts feedback or threshold signal; matched with 1IN+ for precise comparison |
| 2IN+ | Non-inverting input, Channel 2 | Independent second comparator input; electrically isolated from Channel 1 |
| 2IN− | Inverting input, Channel 2 | Second comparator threshold input; supports dual-sensor monitoring or redundancy |
| 1OUT | Output, Channel 1 | Push-pull CMOS output driving logic-level loads directly; no external pullup required |
| 2OUT | Output, Channel 2 | Independent digital output; compatible with TTL/CMOS logic families at VDD levels |
| GND | Negative power supply terminal | Reference return path for both comparators and outputs; must be low-impedance |
| VDD | Positive power supply terminal | Single-supply rail (3–16 V); powers both comparators and output stages |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Rated for –40°C to +125°C ambient operation - validated for powertrain and transmission control environments |
| LinCMOS™ process technology | Delivers 5 pA input bias current and 1.2 mV offset voltage - enables precision sensing without external trimming |
| Push-pull CMOS output stage | Drives ±8 mA into capacitive loads - eliminates external pullup resistors, reducing PCB area and component count |
| Wide supply range (3–16 V) | Operates directly from 12-V battery - supports automotive start-stop and cold-crank conditions without LDO |
| On-chip ESD protection | HBM ±2000 V, CDM ±500–750 V - meets AEC-Q100 requirements without external TVS devices |
Applications
| Transmission Control Unit | Braking System Monitoring |
|---|---|
|
Use Scenario: Detecting gear position sensor thresholds and solenoid driver enable states in automatic transmission control modules. IC Role / Device Role / Timing Role: Dual comparator providing independent voltage window detection for Hall-effect or potentiometric sensors. Use Value: Low 2.7 µs propagation delay ensures real-time response to mechanical actuation events; micropower operation reduces thermal load in sealed TCU enclosures. |
Use Scenario: Monitoring brake fluid level, pad wear sensors, and ABS wheel speed signal conditioning in electronic braking systems. IC Role / Device Role / Timing Role: Precision threshold detector converting analog sensor outputs into clean digital enable/disable signals for safety-critical controllers. Use Value: 10 mV max input offset voltage over temperature guarantees consistent trip points across vehicle lifetime; AEC-Q100 qualification ensures reliability in harsh under-hood environments. |
| Engine Control Module | HEV/EV Battery Management |
|
Use Scenario: Crankshaft/camshaft position sensing, knock detection thresholds, and fuel injector timing validation in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: High-speed comparator capturing fast transient events in ignition and injection circuits. Use Value: 16-V absolute maximum rating allows direct connection to alternator-fed rails during load dump; push-pull output drives microcontroller GPIOs without level-shifting. |
Use Scenario: Cell voltage monitoring, pack isolation detection, and thermal cutoff supervision in hybrid/electric vehicle battery packs. IC Role / Device Role / Timing Role: Dual-channel comparator performing redundant overvoltage/undervoltage checks on individual cell strings. Use Value: 5 pA input bias current prevents loading of high-impedance voltage dividers used in multi-cell monitoring; 125°C operation supports placement near battery cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2903QDRQ1 | Open-collector output, higher 1.3 mA supply current, 1.5 mV offset (typ), wider temp range (–40°C to +150°C) | Requires external pullup resistor; less suitable for capacitive-load timing-critical paths | Select when legacy open-collector interface or higher temperature margin is required; not drop-in for push-pull designs |
| TLV3702QDRQ1 | Lower 1.8 µA supply current, rail-to-rail input, 1.25 mV offset (typ), same SOIC-8 package | Optimized for ultra-low-power systems but lacks AEC-Q100 Grade 1 certification for powertrain use | Prefer for non-safety-critical body electronics; TLC3702QDRG4Q1 remains primary choice for transmission/engine control |
Compared with LM2903QDRQ1 and TLV3702QDRQ1, the TLC3702QDRG4Q1 uniquely combines AEC-Q100 Grade 1 qualification, push-pull output, and 2.7 µs response time - making it the only option qualified for timing-sensitive automotive powertrain comparators without external components.
Availability
TLC3702QDRG4Q1 is available at Aetrix Electronics and suitable for transmission control units, braking systems, and engine control modules requiring stable component supply across extended automotive temperature ranges and long production lifecycles.
Supply support for TLC3702QDRG4Q1 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 specializing in analog and embedded processing technologies, with leadership in automotive, industrial, and power management ICs.
The TLC3702QDRG4Q1 belongs to TI's automotive-qualified LinCMOS™ comparator family, designed specifically for precision, low-power voltage comparison in powertrain and chassis control systems where reliability and temperature stability are critical.
FAQ
What is the operating temperature range for the TLC3702QDRG4Q1?
The TLC3702QDRG4Q1 is AEC-Q100 Grade 1 qualified with an ambient operating temperature range of –40°C to +125°C. This specification is verified per test conditions in the official datasheet (SGLS156F), and applies to all electrical parameters including propagation delay, offset voltage, and supply current across the full range.
Does the TLC3702QDRG4Q1 require external pullup resistors on its outputs?
No, the TLC3702QDRG4Q1 features a push-pull CMOS output stage capable of sourcing and sinking ±8 mA, eliminating the need for external pullup resistors. This design reduces board space, component count, and power dissipation - confirmed in the device description and switching characteristics sections of the TLC3702QDRG4Q1 datasheet.
Is the TLC3702QDRG4Q1 pin-compatible with standard SOIC-8 comparators like the LM393?
No, the TLC3702QDRG4Q1 is not pin-compatible with the LM393. While both use SOIC-8 packages, the TLC3702QDRG4Q1 has dedicated 1IN+, 1IN−, 2IN+, 2IN−, 1OUT, 2OUT, GND, and VDD pins - unlike the LM393's dual open-collector configuration with shared VCC and GND. Pin mapping must be verified against the TLC3702QDRG4Q1 functional diagram.
What is the maximum input voltage the TLC3702QDRG4Q1 can tolerate beyond the supply rails?
The TLC3702QDRG4Q1 allows input voltages up to ±18 V differential (VID) and –0.3 V to VDD + 0.3 V absolute (VI), with internal current limiting to ±5 mA. This tolerance is specified in Absolute Maximum Ratings and supported by ESD protection circuitry - enabling safe operation during power-up/down transients and sensor fault conditions.
How does the LinCMOS™ process benefit the TLC3702QDRG4Q1's performance?
The LinCMOS™ process enables the TLC3702QDRG4Q1 to achieve 5 pA typical input bias current, 1.2 mV typical input offset voltage, and high input impedance (>1012 Ω) - characteristics unattainable with standard CMOS. These traits ensure accurate, low-drift comparisons in high-impedance automotive sensor interfaces, as documented in the TLC3702QDRG4Q1's Electrical Characteristics table.
TLC3702QDRG4Q1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- LinCMOS™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- CMOS, Push-Pull, TTL
- Voltage - Supply, Single/Dual (±):
- 4V ~ 16V
- :
- 5mV @ 10V
- Voltage - Input Offset (Max):
- 5pA @ 5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 90µA
- Current - Quiescent (Max):
- 84dB CMRR
- CMRR, PSRR (Typ):
- 4.5µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- Automotive
- Grade:
- AEC-Q100
- Qualification:
- Surface Mount
- :
- 8-SOIC
TLC3702QDRG4Q1 FAQ
1.How can I place an order for TLC3702QDRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC3702QDRG4Q1 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 TLC3702QDRG4Q1 reliable?
The price and inventory of TLC3702QDRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC3702QDRG4Q1 is usually 5 days.
3.What payment methods are accepted for TLC3702QDRG4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC3702QDRG4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC3702QDRG4Q1?
TLC3702QDRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC3702QDRG4Q1 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 TLC3702QDRG4Q1?
For technical support, including TLC3702QDRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC3702QDRG4Q1 requirements.
6.How does Aetrix verify that TLC3702QDRG4Q1 is sourced from the original manufacturer or authorized distributors?
All TLC3702QDRG4Q1 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 TLC3702QDRG4Q1 meets industry standards.
7.What is the process for return or replacement of TLC3702QDRG4Q1?
All TLC3702QDRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with TLC3702QDRG4Q1, 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 TLC3702QDRG4Q1 part is unused and in its original packaging.
Return procedure for TLC3702QDRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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