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Texas Instruments TLC372CPS
- Part No.:
- TLC372CPS
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
TLC372CPS.pdf
- Description:
- IC COMPARATOR 2 DIFF 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:373
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Product details
Overview
TLC372CPS from Texas Instruments is a dual CMOS voltage comparator with open-drain outputs, designed for single- or dual-supply operation across 3V–16V. It delivers 200ns typical response time (TTL-level input step), 150µA typical supply current at 5V, and ultra-low 5pA typical input bias current. It is used in precision threshold detection circuits such as power supply monitoring and battery voltage supervision.
For engineers reviewing the TLC372CPS datasheet, TLC372CPS pinout, TLC372CPS application, or TLC372CPS equivalent, key selection considerations include its rail-to-rail common-mode input range (including ground), 5mV max input offset voltage at 25°C, open-drain output compatibility with TTL/MOS/CMOS, and pin-compatibility with LM393 in SOIC-8 packaging.
Technical Context
The TLC372CPS integrates two independent high-impedance (10¹²Ω typical) CMOS differential comparators on a single die, each featuring an n-channel open-drain output stage capable of sinking up to 16mA. Its input stage operates with no phase inversion across the full common-mode range (0 V to VDD −1.5 V), enabling direct interfacing with grounded sensors and reference sources.
It supports both single-supply (VDD to GND) and dual-supply (VDD to VSS) configurations, provided the supply differential remains within 3V–16V. The device includes built-in ESD protection rated at 1000V HBM and requires external pull-up resistors (recommended 100µA–1mA current) to define logic-high levels independent of VDD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 16V - enables direct operation from 3.3V, 5V, or 12V rails without level-shifting |
| Input Offset Voltage (max) | 5mV at 25°C - ensures accurate switching thresholds in low-overdrive applications like battery end-of-charge detection |
| Response Time | 200ns typical (100mV overdrive, 5V supply) - supports fast edge detection in motor control commutation or pulse-width monitoring |
| Input Bias Current | 5pA typical - preserves signal integrity when driving from high-impedance sources (e.g., thermistors, photodiodes) |
| Common-Mode Input Range | 0 V to VDD −1.5 V - allows direct connection of IN− to ground while maintaining valid operation |
| Output Configuration | Open-drain (n-channel) - enables wired-AND logic, level translation up to 16V, and flexible pull-up voltage selection |
| ESD Rating | 1000V HBM - provides baseline handling robustness but requires ESD-safe PCB layout practices |
Pinout & Package
Package: SOIC-8 (PS suffix per TI ordering nomenclature). Pin assignments are identical to industry-standard LM393 dual comparator.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Open-drain output of Comparator A - must be pulled up externally; sinks current when IN+ < IN− |
| 2 | IN− A | Inverting input of Comparator A - accepts voltages from 0 V to VDD −1.5 V |
| 3 | IN+ A | Non-inverting input of Comparator A - same voltage range as IN− A |
| 4 | GND | Ground reference for single-supply operation or negative rail in dual-supply mode |
| 5 | IN+ B | Non-inverting input of Comparator B - electrically isolated from Channel A |
| 6 | IN− B | Inverting input of Comparator B - supports independent threshold setting per channel |
| 7 | OUT B | Open-drain output of Comparator B - compatible with shared pull-up bus for OR logic |
| 8 | VDD | Positive supply pin - powers both comparators; supports 3V–16V operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 5pA typical - eliminates loading error in high-Z sensor interfaces (e.g., pH electrodes, capacitive touch) |
| Rail-to-rail common-mode input | Includes ground (0 V) - enables direct ground-referenced input configurations without level shifters |
| Wide supply voltage range | 3V–16V - simplifies design across mixed-voltage systems (e.g., 3.3V MCU + 12V actuator rails) |
| Fast propagation delay | 200ns typical - meets timing requirements in digital power sequencing and overcurrent latch circuits |
| Open-drain output architecture | Supports multi-comparator wired-AND and voltage-level translation - reduces component count in fault-bus designs |
Applications
| Power Supply Monitoring | Battery Management System |
|---|---|
Use Scenario: Detecting undervoltage lockout (UVLO) and overvoltage protection (OVP) on a 24V PLC power rail. IC Role / Device Role / Timing Role: Dual comparator implements window detection: one channel triggers UVLO below 19.2V, the other triggers OVP above 30V. Use Value: Enables fail-safe shutdown before damage occurs; leverages open-drain outputs to drive shared alert line with active-low logic. |
Use Scenario: Monitoring individual cell voltage in a 3S Li-ion battery pack during charging/discharging. IC Role / Device Role / Timing Role: Each comparator compares cell voltage against 4.2V (overcharge) and 2.8V (undervoltage) references using resistor dividers. Use Value: 5pA input bias prevents divider network loading; 5mV offset ensures ±25mV accuracy in cell balancing decisions. |
| Motor Control Commutation | Industrial Sensor Interface |
Use Scenario: Zero-crossing detection for brushless DC motor hall-effect sensor signals. IC Role / Device Role / Timing Role: Comparator converts analog hall sensor output into clean digital edges synchronized to rotor position. Use Value: 200ns response time supports >50kHz commutation rates; rail-to-rail input accommodates unipolar hall outputs referenced to ground. |
Use Scenario: Converting slow-moving analog signals from RTDs or thermocouples into digital alerts for HVAC zone control. IC Role / Device Role / Timing Role: Comparator acts as fixed-threshold detector for temperature breach events (e.g., freeze protection). Use Value: 10¹²Ω input impedance avoids measurement errors from sensor self-heating; low IDD (150µA) extends battery life in wireless sensor nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM393DR | Bipolar input stage; 250nA max input bias current; 2mV max VIO; 1.3mA typical IDD | Higher power consumption and input loading limit use with ultra-high-Z sources | Select when cost sensitivity outweighs precision and power constraints |
| TLC372CDR | Same silicon die and specs; differs only in tape-and-reel packaging (DR vs PS) | No functional difference - identical electrical behavior and SOIC-8 footprint | Select for automated SMT assembly requiring reel format |
Compared with LM393DR, TLC372CPS offers 50× lower input bias current and 8.5× lower supply current, making it superior for battery-powered or high-impedance sensor applications; compared with TLC372CDR, it shares identical performance but uses tube packaging suitable for prototyping and low-volume production.
Availability
TLC372CPS is available at Aetrix Electronics and suitable for power supply monitoring, battery management systems, and industrial sensor interface applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature.
Supply support for TLC372CPS 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 headquartered in Dallas, Texas, specializing in analog and embedded processing technologies with over 90 years of innovation in precision analog ICs.
The TLC372CPS belongs to TI's legacy precision comparator product line, engineered for low-power, high-input-impedance applications in industrial automation, instrumentation, and power management where accuracy and supply flexibility are critical.
FAQ
What is the operating temperature range for the TLC372CPS?
The TLC372CPS is characterized for operation from 0°C to 70°C. This commercial-grade temperature rating makes it suitable for indoor industrial controls, consumer electronics, and non-automotive embedded systems where ambient conditions remain within this envelope. The device maintains specified performance-including 5mV max input offset voltage and 200ns typical response time-across this full range.
Does the TLC372CPS require external pull-up resistors on its outputs?
Yes, the TLC372CPS features open-drain outputs that cannot source current. External pull-up resistors are mandatory to establish a defined logic-high voltage level. Texas Instruments recommends selecting pull-up values that yield 100µA–1mA current flow-typically 4.7kΩ to 50kΩ when pulling up to 5V-to balance rise time, power dissipation, and VOL. Without pull-ups, outputs remain floating and undefined.
Is the TLC372CPS pin-compatible with the LM393?
Yes, the TLC372CPS is pin-compatible with the LM393 in SOIC-8 packaging. Both devices share identical pin assignments (OUT A, IN− A, IN+ A, GND, IN+ B, IN− B, OUT B, VDD) and mounting dimensions. However, the TLC372CPS uses CMOS input technology versus bipolar in the LM393, delivering significantly lower input bias current (5pA vs 250nA) and supply current (150µA vs 1.3mA), enabling direct drop-in replacement where precision and power efficiency are prioritized.
Can the TLC372CPS operate from a dual-supply configuration?
Yes, the TLC372CPS supports dual-supply operation provided the voltage difference between VDD and GND (or VSS) remains within 3V–16V. In dual-supply mode, GND functions as the negative rail (VSS), allowing inputs to swing symmetrically around mid-supply. The common-mode input range extends from VSS to VDD −1.5 V, and the open-drain outputs sink to VSS-not ground-so pull-up resistors must reference VDD. This configuration is commonly used in audio signal detection and bipolar sensor conditioning.
What is the maximum output sink current for the TLC372CPS?
The TLC372CPS can sink up to 16mA per output channel under specified conditions (VOL = 1.5V, VID = −1V, TA = 25°C). At full rated current, the output voltage rises to 400mV maximum-critical for ensuring sufficient noise margin in TTL- or CMOS-compatible logic interfaces. For reliable long-term operation, TI recommends limiting continuous sink current to ≤10mA and verifying thermal performance in high-duty-cycle applications.
TLC372CPS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Series:
- LinCMOS™
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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
TLC372CPS FAQ
1.How can I place an order for TLC372CPS through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC372CPS 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 TLC372CPS reliable?
The price and inventory of TLC372CPS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC372CPS is usually 5 days.
3.What payment methods are accepted for TLC372CPS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC372CPS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC372CPS?
TLC372CPS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC372CPS 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 TLC372CPS?
For technical support, including TLC372CPS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC372CPS requirements.
6.How does Aetrix verify that TLC372CPS is sourced from the original manufacturer or authorized distributors?
All TLC372CPS 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 TLC372CPS meets industry standards.
7.What is the process for return or replacement of TLC372CPS?
All TLC372CPS units undergo pre-shipment inspection (PSI). If there is an issue with TLC372CPS, 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 TLC372CPS part is unused and in its original packaging.
Return procedure for TLC372CPS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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