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Texas Instruments TLC372CPSRG4
- Part No.:
- TLC372CPSRG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
TLC372CPSRG4.pdf
- Description:
- IC COMPARATOR 2 DIFF 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,753
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Product details
Overview
TLC372CPSRG4 from Texas Instruments is a dual CMOS voltage comparator with open-drain outputs, designed for precision threshold detection in single- or dual-supply systems. It delivers 200 ns typical response time at 5V, 150 µA supply current per channel, and 5 pA typical input bias current - enabling high-impedance sensor interfacing in battery-powered instrumentation and industrial monitoring circuits.
For engineers reviewing the TLC372CPSRG4 datasheet, TLC372CPSRG4 pinout, TLC372CPSRG4 application, or TLC372CPSRG4 equivalent, key selection criteria include its rail-to-rail common-mode input range (including ground), TTL/MOS/CMOS-compatible open-drain outputs, ultra-low input offset voltage (1–5 mV), and operation across 3V–16V supply rails.
Technical Context
The TLC372CPSRG4 integrates two independent CMOS differential-pair comparators with ESD-protected inputs and n-channel open-drain output stages. Its input stage achieves >10¹² Ω impedance and 5 pA bias current, supporting direct connection to high-Z sources like photodiodes or precision voltage dividers without loading error.
Each comparator features a common-mode input range extending from V− to VDD − 1.5 V, supports single-supply (GND-referenced) or split-supply operation, and provides logic-level translation via external pull-up - allowing output voltages up to 16 V independent of VDD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 16 V - enables direct operation from 3.3 V, 5 V, or 12 V rails without level-shifting. |
| Input Bias Current | 5 pA typical - preserves signal integrity when interfacing with megaohm-scale sensors or RC timing networks. |
| Response Time | 200 ns typical (100 mV overdrive, 5 V supply) - supports fast edge detection in motor control feedback or power sequencing. |
| Input Offset Voltage | 1–5 mV max at 25°C - ensures accurate trip-point stability in precision window comparators or battery voltage monitors. |
| Output Configuration | Open-drain (n-channel) - permits wired-AND logic, mixed-voltage interfacing, and flexible pull-up to 16 V. |
| Common-Mode Range | Includes ground (0 V) to VDD − 1.5 V - allows direct sensing of signals referenced to system GND in single-supply designs. |
| ESD Rating | 1000 V HBM - provides baseline handling robustness for assembly in non-ESD-controlled environments. |
Pinout & Package
TLC372CPSRG4 is housed in an 8-pin TSSOP (PW) package with 0.65 mm pitch, surface-mount footprint, and exposed thermal pad (not electrically connected). The package is RoHS-compliant and rated for 0°C to 70°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Comparator 1) | Accepts reference or threshold signal; high-impedance node requiring guarded routing to minimize leakage. |
| 2 | Non-Inverting Input (Comparator 1) | Accepts sensed signal; common-mode range includes ground, enabling direct low-side current sensing. |
| 3 | Output (Comparator 1) | Open-drain output - requires external pull-up resistor; sinks current only; supports wired-AND with other comparators. |
| 4 | GND | Power and signal reference ground; must be low-impedance and decoupled with 0.1 µF ceramic capacitor. |
| 5 | Non-Inverting Input (Comparator 2) | Independent input for second threshold comparison; identical electrical specs to Pin 2. |
| 6 | Inverting Input (Comparator 2) | Independent input for second threshold comparison; identical electrical specs to Pin 1. |
| 7 | Output (Comparator 2) | Open-drain output - functionally isolated from Pin 3; supports independent pull-up or shared bus configuration. |
| 8 | VDD | Positive supply rail (3–16 V); bypass directly to GND with 0.1 µF ceramic capacitor placed ≤2 mm from pin. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 5 pA typical - eliminates voltage error across high-value resistors in precision divider networks. |
| Single/dual-supply flexibility | Operates from 3–16 V single supply or ±1.5 V to ±8 V dual supply - simplifies power architecture in mixed-rail systems. |
| Wide common-mode input range | 0 V to VDD − 1.5 V - enables ground-referenced input sensing without level-shifting circuitry. |
| Fast TTL-compatible response | 200 ns typical propagation delay - meets timing requirements for real-time overvoltage lockout and PWM fault detection. |
| ESD-protected inputs | 1000 V HBM rating - reduces risk of parametric degradation during board handling and reflow. |
Applications
| Overvoltage Protection Circuit | Battery Voltage Monitor |
|---|---|
|
Use Scenario: Detecting when a 12 V automotive supply exceeds 13.8 V to trigger shutdown before downstream damage occurs. IC Role / Device Role / Timing Role: Dual comparator configured as window detector - one channel monitors upper threshold, second monitors lower threshold. Use Value: 200 ns response ensures rapid fault isolation; open-drain outputs interface directly with 12 V logic or MOSFET gate drivers. |
Use Scenario: Monitoring Li-ion cell voltage (2.5–4.2 V range) in portable medical devices to initiate low-battery warning at 3.0 V. IC Role / Device Role / Timing Role: Precision threshold comparator comparing cell voltage against stable 2.5 V reference. Use Value: 5 pA input bias current prevents loading of high-impedance voltage dividers; 150 µA total supply current extends battery life. |
| Motor Stall Detection | Industrial PLC Input Conditioning |
|
Use Scenario: Detecting stalled DC motor condition by comparing back-EMF decay rate against fixed threshold during commutation. IC Role / Device Role / Timing Role: High-speed comparator capturing transient voltage dips during rotor lock. Use Value: 200 ns response captures sub-microsecond anomalies; rail-to-rail input range accommodates zero-crossing detection. |
Use Scenario: Converting 0–10 V analog sensor outputs into clean digital signals for PLC analog input modules. IC Role / Device Role / Timing Role: Signal conditioning comparator with hysteresis to reject noise on long industrial cables. Use Value: Adjustable hysteresis via external resistors suppresses false triggering; open-drain outputs drive 24 V PLC logic directly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM393DR | Higher input bias current (25 nA), slower response (1.3 µs), bipolar process - less suitable for high-Z sources or fast edges. | Used in cost-sensitive, non-precision applications where speed and input impedance are secondary. | Select LM393DR only when legacy compatibility or lower unit cost outweighs need for micro-power operation and nanosecond response. |
| TLC372CDR | Same die, identical electrical specs, but in SOIC-8 (D) package - larger footprint, higher thermal resistance (97.1 °C/W vs. 149 °C/W). | Preferred in through-hole prototyping or where TSSOP reflow capability is unavailable. | Choose TLC372CDR if board assembly lacks fine-pitch SMT capability; otherwise, TLC372CPSRG4 offers superior thermal performance and density. |
Compared with LM393DR, TLC372CPSRG4 enables 100× lower input bias current and 6× faster response - critical for precision sensor interfaces. Compared with TLC372CDR, it delivers 30% lower thermal resistance in a 30% smaller footprint, improving power efficiency and board space utilization.
Availability
TLC372CPSRG4 is available at Aetrix Electronics and suitable for industrial PLC input conditioning, battery voltage monitoring, overvoltage protection circuits, and motor stall detection requiring stable component supply across extended temperature and long production lifecycles.
Supply support for TLC372CPSRG4 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 signal chain components.
The TLC372CPSRG4 belongs to TI's precision comparator product line, engineered for low-power, high-impedance sensing applications in industrial automation, medical instrumentation, and energy-efficient portable electronics.
FAQ
What is the operating temperature range for the TLC372CPSRG4?
The TLC372CPSRG4 is characterized for operation from 0°C to 70°C - the 'C' suffix denotes commercial temperature grade. This range covers standard industrial control panels, consumer test equipment, and office automation devices where ambient temperatures remain within controlled environments. The device maintains specified input offset voltage (1–5 mV), response time (200 ns), and supply current (150 µA) across this full range.
Can the TLC372CPSRG4 operate from a single 3.3 V supply?
Yes, the TLC372CPSRG4 supports single-supply operation down to 3 V - making it fully compatible with 3.3 V systems. At 3.3 V, it retains 5 pA typical input bias current and rail-to-rail common-mode input range (0 V to 1.8 V), enabling direct interface with 3.3 V ADC references or low-voltage sensors. Output sinking capability remains functional with appropriate pull-up resistor selection.
Why does the TLC372CPSRG4 use open-drain outputs instead of push-pull?
The TLC372CPSRG4 uses open-drain outputs to enable wired-AND logic, mixed-voltage interfacing, and flexible level translation - functions not possible with push-pull outputs. Each output can be pulled up to any voltage between 0 V and 16 V, independent of the 3–16 V VDD supply. This allows the TLC372CPSRG4 to drive 5 V, 12 V, or 24 V logic buses while powered from a low-voltage rail, simplifying multi-voltage system design.
How do I add hysteresis to the TLC372CPSRG4 for noise immunity?
Hysteresis is added externally using resistor feedback networks - either inverting (three-resistor) or non-inverting (two-resistor + reference) configurations. For the TLC372CPSRG4, TI recommends selecting resistor values that limit feedback current to <1 mA and ensure ≥50 mV hysteresis window to suppress noise-induced chatter. Application notes SBOA219 and SNOA997 provide validated schematics and equations for both topologies.
Is the TLC372CPSRG4 pin-compatible with the LM393?
Yes, the TLC372CPSRG4 is explicitly pin-compatible with the LM393 in the same package variant - both share identical 8-pin TSSOP (PW) pinout: Pin 1 (IN−A), Pin 2 (IN+A), Pin 3 (OUTA), Pin 4 (GND), Pin 5 (IN+B), Pin 6 (IN−B), Pin 7 (OUTB), Pin 8 (VDD). This allows drop-in replacement in existing LM393 layouts while delivering superior input impedance, speed, and power efficiency.
TLC372CPSRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Series:
- LinCMOS™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Differential
- Number of Elements:
- 2
- 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):
- 400µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SO
TLC372CPSRG4 FAQ
1.How can I place an order for TLC372CPSRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC372CPSRG4 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 TLC372CPSRG4 reliable?
The price and inventory of TLC372CPSRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC372CPSRG4 is usually 5 days.
3.What payment methods are accepted for TLC372CPSRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC372CPSRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC372CPSRG4?
TLC372CPSRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC372CPSRG4 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 TLC372CPSRG4?
For technical support, including TLC372CPSRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC372CPSRG4 requirements.
6.How does Aetrix verify that TLC372CPSRG4 is sourced from the original manufacturer or authorized distributors?
All TLC372CPSRG4 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 TLC372CPSRG4 meets industry standards.
7.What is the process for return or replacement of TLC372CPSRG4?
All TLC372CPSRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC372CPSRG4, 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 TLC372CPSRG4 part is unused and in its original packaging.
Return procedure for TLC372CPSRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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