My Inquiry
My Account
Texas Instruments TLC3702QDRQ1
- Part No.:
- TLC3702QDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC3702QDRQ1.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,840
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLC3702QDRQ1 from Texas Instruments is a dual micropower LinCMOS™ voltage comparator qualified for automotive applications, featuring push-pull CMOS outputs (±8 mA), 100 µW typical supply power at 5 V, and 2.7 µs typical propagation delay (tPLH) with 5-mV overdrive - deployed in transmission control units and engine control systems.
For engineers reviewing the TLC3702QDRQ1 datasheet, TLC3702QDRQ1 pinout, TLC3702QDRQ1 application, or TLC3702QDRQ1 equivalent, key selection criteria include AEC-Q100 Grade 1 temperature range (–40°C to +125°C), rail-to-rail input common-mode range (0 to VDD −1.5 V), and absence of external pullup resistors due to integrated push-pull output stage.
Technical Context
The TLC3702QDRQ1 implements two independent comparators using Texas Instruments' LinCMOS™ process, delivering high input impedance (>1012 Ω), ultra-low input bias current (5 pA typ. at 25°C), and stable input offset voltage (1.2 mV typ. at 25°C). Its architecture eliminates external pullup resistors via push-pull CMOS outputs compatible with TTL/CMOS logic levels.
It operates from a single 3 V to 16 V supply, supporting direct connection to 12-V automotive batteries and start-stop systems. The device meets AEC-Q100 requirements including HBM ESD classification H2 (±2000 V) and CDM classification C4B (±500 V to ±750 V depending on pin).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 16 V - enables direct 12-V battery interface and robust start-stop operation in automotive powertrain systems. |
| Quiescent Supply Current | 19 µA typ. per comparator at 25°C - achieves micropower operation critical for battery-backed or low-duty-cycle automotive subsystems. |
| Propagation Delay (tPLH) | 2.7 µs typ. with 5-mV overdrive - provides fast response to transient signals while maintaining low power consumption. |
| Input Offset Voltage | 1.2 mV typ. at 25°C - ensures accurate threshold detection in precision sensing applications like engine knock monitoring. |
| Output Drive Capability | ±8 mA push-pull - drives capacitive loads directly without external pullup, reducing BOM count and PCB area. |
| Common-Mode Input Range | 0 to VDD −1.5 V at –40°C to +125°C - supports wide dynamic range signal conditioning across automotive operating conditions. |
| ESD Rating (HBM) | ±2000 V - meets AEC-Q100 H2 classification for reliable handling during automotive assembly and field service. |
Pinout & Package
Package: SOIC-8 (4.90 mm × 3.91 mm), RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+ | Non-inverting input, Channel 1 | Accepts reference or sensed signal for first comparator; supports common-mode range up to VDD −1.5 V. |
| 1IN− | Inverting input, Channel 1 | Accepts feedback or threshold signal; differential input voltage tolerance ±18 V prevents latch-up during transients. |
| 1OUT | Output, Channel 1 | Push-pull CMOS output capable of sourcing/sinking ±8 mA; logic-compatible with TTL/CMOS without pullup. |
| GND | Negative supply terminal | Reference node for both comparators; must be low-impedance to minimize noise coupling into high-impedance inputs. |
| 2IN+ | Non-inverting input, Channel 2 | Independent second channel input; electrically isolated from Channel 1 per datasheet functional block diagram. |
| 2IN− | Inverting input, Channel 2 | Second comparator input; shares same ESD protection and input bias current specs as Channel 1. |
| 2OUT | Output, Channel 2 | Independent push-pull output; no crosstalk specified between channels under recommended operating conditions. |
| VDD | Positive supply terminal | Single-supply input supporting 3–16 V; internal regulation not required; decoupling capacitor (0.1 µF) mandatory near pin. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - enables use in transmission control units and engine control modules without derating. |
| Push-pull CMOS output stage | Eliminates need for external pullup resistors - reduces component count, board space, and power loss in high-capacitance routing scenarios. |
| LinCMOS™ process technology | Delivers 5 pA typical input bias current and <10 mV max offset drift over temperature - ensures stable threshold detection in long-life automotive deployments. |
| Wide supply voltage range | 3 V to 16 V operation - accommodates 12-V battery fluctuations during cranking (down to ~6 V) and stop-start cycling without reset or malfunction. |
| On-chip ESD protection | HBM ±2000 V and CDM ±500 V/±750 V - satisfies automotive manufacturing ESD control requirements without additional external protection circuitry. |
Applications
| Transmission Control Unit | Braking System Monitoring |
|---|---|
|
Use Scenario: Detect gear position sensor thresholds and clutch engagement timing in automatic transmissions. IC Role / Device Role / Timing Role: Dual comparator performs simultaneous high-speed comparison of analog sensor outputs against reference voltages. Use Value: 2.7 µs tPLH enables real-time response to mechanical actuation events; micropower operation extends control module battery backup duration. |
Use Scenario: Monitor hydraulic pressure sensor signals and ABS wheel speed zero-crossing detection. IC Role / Device Role / Timing Role: One channel compares pressure thresholds; second channel detects AC-coupled wheel speed signal zero crossings. Use Value: Rail-to-rail input range (0 to VDD −1.5 V) accommodates sensor offsets across temperature; push-pull outputs drive CAN bus interface logic directly. |
| Engine Control Module | Start-Stop System Supervision |
|
Use Scenario: Process crankshaft/camshaft position sensor signals and knock sensor envelope detection. IC Role / Device Role / Timing Role: High-impedance inputs condition low-level magnetic sensor outputs; dual channels enable phase-difference analysis. Use Value: 5 pA input bias current prevents signal loading on high-Z sensor circuits; 1.2 mV offset voltage ensures consistent ignition timing across lifetime. |
Use Scenario: Supervise 12-V battery voltage during engine restart and validate system readiness before cranking. IC Role / Device Role / Timing Role: One comparator monitors battery voltage against restart threshold; second validates auxiliary supply stability. Use Value: 3–16 V supply range tolerates battery sag to 6 V during cranking; micropower mode (<90 µA max) maintains supervision during extended idle periods. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM393QPWRQ1 | Open-collector output (requires external pullup); higher quiescent current (200 µA typ.); slower tPLH (1.5 µs min. but no typical spec given). | Lacks push-pull drive; unsuitable where capacitive load driving or bidirectional logic interfacing is required. | Select when cost sensitivity outweighs layout simplicity and power savings; verify pullup resistor thermal design for high-frequency switching. |
| TLV3702QDRQ1 | Lower supply voltage floor (1.8 V); lower quiescent current (8 µA typ.); identical pinout and LinCMOS™ architecture. | Better suited for 3.3-V domain or ultra-low-power subsystems; not rated for >12 V operation. | Prefer for new 3.3-V designs requiring extended battery life; avoid in 12-V direct-battery applications due to 12-V absolute maximum violation risk. |
Compared with LM393QPWRQ1, TLC3702QDRQ1 eliminates external pullups and cuts supply current by 90%, enabling smaller PCB footprints and longer standby times; versus TLV3702QDRQ1, it trades 1.8-V capability for guaranteed 12-V battery compatibility and broader automotive voltage margin.
Availability
TLC3702QDRQ1 is available at Aetrix Electronics and suitable for transmission control units, braking system monitoring, and engine control modules requiring stable component supply across automotive production lifecycles.
Supply support for TLC3702QDRQ1 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-grade IC design and AEC-Q100 qualification infrastructure.
The TLC3702QDRQ1 belongs to TI's LinCMOS™ automotive comparator product line, engineered specifically for high-reliability, low-power signal conditioning in powertrain and chassis control systems.
FAQ
What is the maximum supply voltage rating for the TLC3702QDRQ1?
The TLC3702QDRQ1 has an absolute maximum supply voltage (VDD) rating of 18 V, with recommended operation from 3 V to 16 V. This allows direct connection to 12-V automotive batteries while accommodating transient spikes up to 18 V without damage. Operation above 16 V is outside the recommended range and may impact parametric performance or reliability over time. The TLC3702QDRQ1 datasheet specifies 16 V as the upper limit for guaranteed electrical characteristics across temperature.
Does the TLC3702QDRQ1 require external pullup resistors on its outputs?
No, the TLC3702QDRQ1 does not require external pullup resistors because it features a push-pull CMOS output stage capable of sourcing and sinking ±8 mA. This architecture drives capacitive loads directly and interfaces natively with TTL and CMOS logic families. Adding external pullups would increase power consumption, reduce switching speed, and introduce unnecessary components - contradicting the micropower and space-saving design intent of the TLC3702QDRQ1.
What is the input common-mode voltage range for the TLC3702QDRQ1 over temperature?
The TLC3702QDRQ1 supports an input common-mode voltage range of 0 V to VDD −1.5 V across its full operating temperature range of –40°C to +125°C. At 5 V supply, this translates to 0 V to 3.5 V; at 12 V, it extends to 0 V to 10.5 V. This wide range enables reliable operation with sensors whose outputs swing near ground or rail, such as resistive position sensors or differential amplifiers in automotive powertrain applications.
How is the TLC3702QDRQ1 qualified for automotive use?
The TLC3702QDRQ1 is AEC-Q100 qualified as Grade 1, with test results confirming operation from –40°C to +125°C ambient temperature, HBM ESD classification level H2 (±2000 V), and CDM classification level C4B (±500 V to ±750 V depending on pin). These qualifications were performed per AEC-Q100-002 and AEC-Q100-011 standards and documented in the official TI production datasheet SGLS156F. No additional qualification testing is required for automotive deployment.
Can the TLC3702QDRQ1 operate from a 3.3-V supply?
Yes, the TLC3702QDRQ1 supports operation from 3 V to 16 V, making 3.3-V supply fully compliant with its recommended operating conditions. At 3.3 V, output high-level voltage (VOH) is guaranteed ≥2.7 V with –4 mA load, and low-level voltage (VOL) remains ≤400 mV with 4 mA load - sufficient to drive standard 3.3-V CMOS logic. Input offset voltage and propagation delay remain within datasheet limits, though tPLH increases slightly versus 5-V operation.
TLC3702QDRQ1 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:
- Active
- 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
TLC3702QDRQ1 FAQ
1.How can I place an order for TLC3702QDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC3702QDRQ1 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 TLC3702QDRQ1 reliable?
The price and inventory of TLC3702QDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC3702QDRQ1 is usually 5 days.
3.What payment methods are accepted for TLC3702QDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC3702QDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC3702QDRQ1?
TLC3702QDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC3702QDRQ1 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 TLC3702QDRQ1?
For technical support, including TLC3702QDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC3702QDRQ1 requirements.
6.How does Aetrix verify that TLC3702QDRQ1 is sourced from the original manufacturer or authorized distributors?
All TLC3702QDRQ1 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 TLC3702QDRQ1 meets industry standards.
7.What is the process for return or replacement of TLC3702QDRQ1?
All TLC3702QDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLC3702QDRQ1, 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 TLC3702QDRQ1 part is unused and in its original packaging.
Return procedure for TLC3702QDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC3702QDRQ1 Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
-
LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP Semiconductors
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…
