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Texas Instruments TLC374IDRG4
- Part No.:
- TLC374IDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC374IDRG4.pdf
- Description:
- IC COMPARATOR 4 DIFF 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,420
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Product details
Overview
TLC374IDRG4 from Texas Instruments is a LinCMOS™ quadruple differential comparator IC designed for single- or dual-supply operation across 2 V to 18 V. It features four independent open-drain comparators with 5 pA typical input bias current, 200 ns typical response time (TTL-level step), and 10¹² Ω typical input impedance-enabling high-precision threshold detection in battery-powered sensor interfaces and industrial control logic.
For engineers reviewing the TLC374IDRG4 datasheet, TLC374IDRG4 pinout, TLC374IDRG4 application, or TLC374IDRG4 equivalent, this page delivers verified specifications, temperature-rated performance (–40°C to 85°C), package mapping (SOIC-14), and real-world design context-including TTL/MOS/CMOS output compatibility and pin-compatibility with LM339.
Technical Context
The TLC374IDRG4 implements four independent voltage comparators on a single LinCMOS™ die, each with n-channel open-drain output requiring external pull-up. Its input stage operates with rail-to-rail common-mode range down to ground and supports differential inputs up to ±18 V.
It uses patented internal ESD protection rated at 1000 V (HBM), enabling robust handling in automated assembly. Input offset voltage is specified at ≤5 mV over full operating temperature (–40°C to 85°C), and supply current remains stable at ≤800 µA across temperature and load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 18 V - supports single-supply systems (e.g., 3.3 V, 5 V, 12 V) and dual-supply configurations with ≥2 V differential. |
| Input Bias Current | 5 pA typ - enables direct interfacing with high-impedance sources (e.g., photodiodes, precision voltage dividers) without loading error. |
| Response Time | 200 ns typ (TTL-level step) - suitable for fast edge detection in digital logic conditioning and overvoltage latch circuits. |
| Input Offset Voltage | ≤5 mV max (–40°C to 85°C) - ensures reliable switching accuracy across industrial temperature range without trimming. |
| Output Type | n-channel open-drain - allows wired-AND logic, level translation, and flexible pull-up selection (e.g., 3.3 V or 5 V). |
| ESD Rating | 1000 V HBM - meets standard handling requirements for automated PCB assembly without additional protection circuitry. |
| Common-Mode Range | Includes ground (0 V) to VDD–1.5 V - supports ground-referenced sensing and low-side current monitoring. |
Pinout & Package
Package: SOIC-14 (D package), 14-pin narrow-body surface-mount. Pin 1 marked by beveled corner or notch; top-view orientation matches D-package diagram in SLCS118C datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Open-drain output of Comparator 1 - requires external pull-up; sinks up to 16 mA. |
| 2 | 1IN– | Inverting input of Comparator 1 - high-impedance node (10¹² Ω); accepts signals from 0 V to VDD–1.5 V. |
| 3 | 1IN+ | Non-inverting input of Comparator 1 - same electrical characteristics as 1IN–; used for threshold comparison. |
| 4 | 2IN– | Inverting input of Comparator 2 - electrically identical to 1IN–; supports independent dual-threshold detection. |
| 5 | 2IN+ | Non-inverting input of Comparator 2 - enables simultaneous monitoring of two analog signals against separate references. |
| 6 | VDD | Positive supply rail - powers all four comparators; decoupling capacitor recommended near pin. |
| 7 | GND | Ground reference - shared return path for all comparators and outputs; must be low-impedance. |
| 8 | 2OUT | Open-drain output of Comparator 2 - independently controllable; compatible with TTL, MOS, CMOS logic families. |
| 9 | 3IN+ | Non-inverting input of Comparator 3 - completes channel set; supports quad-input monitoring (e.g., window comparator + fault flag). |
| 10 | 3IN– | Inverting input of Comparator 3 - paired with 3IN+; no internal connection to other channels. |
| 11 | 3OUT | Open-drain output of Comparator 3 - usable for cascaded logic or status indication with external pull-up. |
| 12 | 4IN– | Inverting input of Comparator 4 - fully isolated; supports fourth independent decision point (e.g., power-good + undervoltage lockout). |
| 13 | 4IN+ | Non-inverting input of Comparator 4 - enables full quad functionality without shared reference constraints. |
| 14 | 4OUT | Open-drain output of Comparator 4 - final output channel; compatible with wired-AND bus architectures. |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ process technology | Delivers ultra-low input bias current (5 pA typ) and high input impedance (10¹² Ω typ) for minimal signal source loading. |
| Wide supply range (2–18 V) | Eliminates need for level-shifting in mixed-voltage systems; supports direct interface with 3.3 V microcontrollers and 12 V industrial rails. |
| Pin-compatible with LM339 | Enables drop-in replacement in legacy designs without PCB layout changes or firmware updates. |
| Internal ESD protection (1000 V HBM) | Reduces need for external TVS diodes in board-level ESD protection schemes; qualified per JEDEC JS-001. |
| Temperature-rated performance (–40°C to 85°C) | Guarantees 5 mV max input offset and 800 µA max supply current across full industrial operating range. |
Applications
| Battery Management System | Industrial PLC Input Module |
|---|---|
|
Use Scenario: Monitoring cell voltage thresholds and pack-level overvoltage/undervoltage conditions in 4-cell Li-ion battery packs. IC Role / Device Role / Timing Role: Four independent comparators detect individual cell voltages against precision reference, triggering isolation FETs via open-drain outputs. Use Value: 5 pA input bias prevents discharge through sense resistors; 200 ns response enables fast fault shutdown before thermal runaway. |
Use Scenario: Converting 0–10 V or 4–20 mA analog sensor inputs into clean digital logic levels for PLC CPU scanning. IC Role / Device Role / Timing Role: Each comparator acts as a programmable threshold detector; outputs drive optocouplers or microcontroller GPIOs. Use Value: Rail-to-rail common-mode input (0 V to VDD–1.5 V) accepts grounded sensor returns; open-drain outputs interface directly with 5 V or 3.3 V logic. |
| Power Supply Sequencing Controller | Motor Overcurrent Protection |
|
Use Scenario: Ensuring correct power-up order across multiple rails (e.g., 12 V → 5 V → 3.3 V) in FPGA-based systems. IC Role / Device Role / Timing Role: Comparators monitor each rail's voltage with hysteresis; wired-AND outputs generate global "all-rails-good" signal. Use Value: Open-drain outputs enable hardware OR-ing without diodes; 2 V minimum supply allows operation during brownout conditions. |
Use Scenario: Detecting excessive current in motor phase windings using shunt resistor voltage drops. IC Role / Device Role / Timing Role: Two comparators monitor high-side and low-side shunt voltages; third and fourth implement hysteresis and fault latching. Use Value: 10¹² Ω input impedance avoids gain error in precision current-sense amplifiers; 16 mA sink capability drives gate drivers directly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quadruple comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DR | Higher input bias current (25 nA typ), slower response (1.3 µs typ), no ESD rating specified. | Not rated for –40°C operation; less suitable for wide-temperature industrial environments. | Select LM339DR only if cost is primary constraint and temperature range is limited to 0°C–70°C. |
| TLC374CDR | Same architecture and pinout; rated for 0°C to 70°C instead of –40°C to 85°C. | Limited to commercial temperature range; unsuitable for automotive under-hood or outdoor industrial use. | Choose TLC374CDR for cost-sensitive consumer electronics where extended temperature is unnecessary. |
Compared with LM339DR and TLC374CDR, the TLC374IDRG4 provides superior input bias current (5 pA vs 25 nA), faster response (200 ns vs 1.3 µs), and guaranteed operation across –40°C to 85°C-making it optimal for precision, temperature-critical, or low-power industrial designs.
Availability
TLC374IDRG4 is available at Aetrix Electronics and suitable for battery management systems, industrial PLC input modules, power supply sequencing controllers, and motor overcurrent protection circuits requiring stable component supply and long-term industrial-grade availability.
Supply support for TLC374IDRG4 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 leader specializing in analog and embedded processing technologies, with decades of expertise in precision analog ICs and industrial-grade reliability.
The TLC374IDRG4 belongs to TI's LinCMOS™ comparator family, engineered for high-input-impedance, low-power, wide-supply applications in industrial control, instrumentation, and power management systems.
FAQ
What is the operating temperature range for the TLC374IDRG4?
The TLC374IDRG4 is characterized for operation from –40°C to +85°C. This industrial temperature rating is confirmed in the SLCS118C datasheet and applies to all electrical parameters including input offset voltage (≤5 mV), supply current (≤800 µA), and response time (200 ns typ). The 'I' suffix explicitly denotes this grade, distinguishing it from commercial (C) and military (M) variants.
Does the TLC374IDRG4 require external pull-up resistors on its outputs?
Yes, the TLC374IDRG4 features n-channel open-drain outputs (1OUT–4OUT), which require external pull-up resistors to a positive supply (e.g., 3.3 V or 5 V). Without pull-ups, outputs remain floating in the high state. Typical values range from 2.2 kΩ to 10 kΩ depending on speed and drive strength requirements; the device can sink up to 16 mA per output.
Is the TLC374IDRG4 pin-compatible with the LM339?
Yes, the TLC374IDRG4 is pin-compatible with the LM339 in SOIC-14 (D) package. Pin assignments for inputs, outputs, VDD, and GND match exactly, enabling direct replacement in existing LM339 layouts. However, note that TLC374IDRG4 offers lower input bias current (5 pA vs 25 nA), faster response (200 ns vs 1.3 µs), and guaranteed –40°C to 85°C operation.
What is the maximum supply voltage the TLC374IDRG4 can tolerate?
The absolute maximum supply voltage for the TLC374IDRG4 is 18 V, as specified in the Absolute Maximum Ratings table of SLCS118C. Recommended operating conditions specify 3 V to 16 V for the 'I' grade. Operation at 18 V is permissible only for short durations and not recommended for continuous use due to increased power dissipation and potential reliability impact.
Can the TLC374IDRG4 operate from a single 3.3 V supply?
Yes, the TLC374IDRG4 supports single-supply operation from as low as 2 V, making 3.3 V fully compliant. At 3.3 V, the common-mode input range extends from 0 V to 1.8 V (VDD–1.5 V), and output low voltage remains ≤400 mV at 4 mA sink. Input bias current stays at 5 pA typ, preserving accuracy in low-voltage sensor interfaces.
TLC374IDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- LinCMOS™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Differential
- Number of Elements:
- 4
- Output Type:
- CMOS, MOS, Open-Drain, TTL
- Voltage - Supply, Single/Dual (±):
- 3V ~ 16V, ±1.5V ~ 8V
- :
- 5mV @ 5V
- Voltage - Input Offset (Max):
- 5pA @ 5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 800µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-SOIC
TLC374IDRG4 FAQ
1.How can I place an order for TLC374IDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC374IDRG4 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 TLC374IDRG4 reliable?
The price and inventory of TLC374IDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC374IDRG4 is usually 5 days.
3.What payment methods are accepted for TLC374IDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC374IDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC374IDRG4?
TLC374IDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC374IDRG4 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 TLC374IDRG4?
For technical support, including TLC374IDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC374IDRG4 requirements.
6.How does Aetrix verify that TLC374IDRG4 is sourced from the original manufacturer or authorized distributors?
All TLC374IDRG4 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 TLC374IDRG4 meets industry standards.
7.What is the process for return or replacement of TLC374IDRG4?
All TLC374IDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC374IDRG4, 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 TLC374IDRG4 part is unused and in its original packaging.
Return procedure for TLC374IDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC374IDRG4 Tags
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