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Texas Instruments TLC372CPSG4
- Part No.:
- TLC372CPSG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
TLC372CPSG4.pdf
- Description:
- IC COMPARATOR 2 DIFF 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,806
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Product details
Overview
TLC372CPSG4 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), 5pA typical input bias current, and ultra-low 150µA supply current at 5V - enabling precision threshold detection in battery-powered sensor interfaces and power-monitoring circuits.
For engineers reviewing the TLC372CPSG4 datasheet, TLC372CPSG4 pinout, TLC372CPSG4 application, or TLC372CPSG4 equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation guidance, and two confirmed alternative comparators with documented functional and thermal differences.
Technical Context
The TLC372CPSG4 integrates two independent high-impedance (10¹²Ω typical) CMOS differential input stages with rail-to-rail common-mode range including ground, enabling direct interfacing with high-impedance sources like thermistors or photodiodes. Its open-drain output stage supports logic-level translation up to 16V and wired-AND configurations without external level-shifting circuitry.
It features built-in ESD protection rated at 1000V HBM, operates over 0°C to 70°C, and maintains ultra-stable input offset voltage (≤5mV max at 25°C) with no phase inversion across its full input voltage range - critical for reliable window-comparator and zero-crossing detection topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 16V - supports direct interface with 3.3V, 5V, and 12V systems without regulators. |
| Input Bias Current | 5pA typical - minimizes loading error on high-impedance sensors (e.g., pH electrodes, piezoelectric transducers). |
| Response Time | 200ns typical (100mV overdrive) - enables accurate timing capture in pulse-width monitoring and fast fault-detection circuits. |
| Input Offset Voltage | ≤5mV max at 25°C - ensures precise trip-point accuracy in voltage-monitoring applications such as undervoltage lockout. |
| Output Configuration | Open-drain N-channel - allows flexible pull-up to any voltage ≤16V and logical OR-ing of multiple comparator outputs. |
| Common-Mode Range | 0V to VDD−1.5V - includes ground reference, enabling direct sensing of signals referenced to system GND. |
| ESD Rating | 1000V HBM - provides baseline handling robustness without requiring additional external protection diodes. |
Pinout & Package
Package: TSSOP-8 (PW), 3.0mm × 4.4mm body, 0.65mm pitch, exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Open-drain output of Comparator A - requires external pull-up resistor; sinks current when IN+ < IN−. |
| 2 | IN− A | Inverting input of Comparator A - accepts voltages from GND to VDD−1.5V; high-impedance node. |
| 3 | IN+ A | Non-inverting input of Comparator A - same voltage range and impedance as IN− A. |
| 4 | GND | Ground reference for both comparators and internal circuitry - must be low-impedance connection. |
| 5 | IN+ B | Non-inverting input of Comparator B - electrically isolated from Comparator A inputs. |
| 6 | IN− B | Inverting input of Comparator B - independent bias path; no crosstalk with Comparator A. |
| 7 | OUT B | Open-drain output of Comparator B - compatible with TTL/MOS/CMOS logic families via external pull-up. |
| 8 | VDD | Positive supply pin - powers both comparators; supports single- or dual-supply configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 5pA typical - preserves signal integrity in high-Z sensor front-ends without calibration drift. |
| Wide supply voltage range | 3V–16V - eliminates need for dedicated LDOs in multi-rail industrial control modules. |
| Fast propagation delay | 200ns typical - meets timing requirements for motor overcurrent shutdown and digital encoder edge detection. |
| Rail-inclusive common-mode range | 0V to VDD−1.5V - enables ground-referenced input monitoring without level-shifting resistors. |
| Open-drain output compatibility | TTL/MOS/CMOS - simplifies integration into mixed-voltage systems (e.g., 3.3V logic controlling 12V relays). |
Applications
| Power Supply Monitoring | Sensor Threshold Detection |
|---|---|
|
Use Scenario: Detecting undervoltage (UVLO) and overvoltage (OVLO) conditions on a 24V PLC power rail using a resistor divider and 2.5V reference. IC Role / Device Role / Timing Role: Dual comparator implementing window-comparator function - one channel triggers UV alert, the other OV alert. Use Value: Enables fail-safe shutdown before downstream components experience brownout or overvoltage stress, with <5mV offset ensuring ±0.3% trip-point accuracy. |
Use Scenario: Converting analog output from a temperature-sensing thermistor into a digital flag when temperature exceeds 85°C. IC Role / Device Role / Timing Role: Single comparator comparing thermistor voltage against fixed reference; open-drain output drives microcontroller interrupt pin. Use Value: 5pA input bias prevents measurement error in high-resistance thermistor networks; 200ns response ensures timely thermal shutdown. |
| Motor Control Fault Sensing | Level Translation Interface |
|
Use Scenario: Monitoring current-sense amplifier output to trigger immediate motor stall detection during startup. IC Role / Device Role / Timing Role: Fast comparator detecting current overshoot above threshold - output directly gates gate-driver enable line. Use Value: 200ns propagation delay enables sub-microsecond fault response, preventing IGBT latch-up and thermal damage. |
Use Scenario: Translating 5V logic signals to 12V levels for driving optocouplers in isolated feedback loops. IC Role / Device Role / Timing Role: Open-drain output pulled to 12V - acts as active-low level shifter with no direction control required. Use Value: Eliminates need for discrete MOSFET translators; 16V max pull-up supports legacy industrial bus voltages. |
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 (25nA vs. 5pA), wider offset voltage (7mV max), slower response (1.3µs typical) | Less suitable for high-impedance sensor interfaces; acceptable for general-purpose voltage comparison where speed and precision are secondary | Select LM393DR only when cost is primary constraint and design tolerates higher input error and slower response. |
| TLC372CPW | Same die and electrical specs; differs only in packaging - PW (TSSOP-8) vs. PSG4 (SOIC-8); identical pinout and thermal performance | No functional difference - substitution valid if board layout accommodates SOIC-8 footprint and thermal profile matches | Choose TLC372CPW for space-constrained PCBs requiring TSSOP-8; TLC372CPSG4 preferred for through-hole prototyping or legacy SOIC layouts. |
Compared with LM393DR, TLC372CPSG4 delivers 5000× lower input bias current and 6.5× faster response - critical for precision analog sensing. Compared with TLC372CPW, TLC372CPSG4 offers identical functionality in SOIC-8 packaging, easing replacement in existing designs without layout changes.
Availability
TLC372CPSG4 is available at Aetrix Electronics and suitable for power supply monitoring, sensor threshold detection, motor control fault sensing, and level translation interface applications requiring stable component supply, long-term manufacturability, and guaranteed TI second-source availability.
Supply support for TLC372CPSG4 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 conditioning and power management ICs.
The TLC372 product line delivers micro-power, high-accuracy comparators optimized for battery-operated instrumentation, industrial control systems, and automotive subsystems requiring wide supply range and rail-compatible inputs.
FAQ
What is the operating temperature range for the TLC372CPSG4?
The TLC372CPSG4 is characterized for operation from 0°C to 70°C - designated by the "C" suffix per TI's temperature grade nomenclature. This commercial-grade rating makes it suitable for indoor industrial controls, consumer electronics, and non-automotive embedded systems where ambient temperatures remain within this range. The device's electrical specifications, including input offset voltage and supply current, are guaranteed across this full interval.
Does the TLC372CPSG4 require external pull-up resistors on its outputs?
Yes, the TLC372CPSG4 features open-drain outputs that cannot source current - each OUT pin must be connected to an external pull-up resistor to define the high logic level. TI recommends pull-up currents between 100µA and 1mA; for example, a 10kΩ resistor to 5V yields 500µA, balancing rise time and power dissipation. Without a pull-up, the output remains floating and undefined.
Can the TLC372CPSG4 operate from a dual-supply configuration?
Yes, the TLC372CPSG4 supports dual-supply operation when the voltage difference between VDD and GND is maintained between 3V and 16V - for example, +5V and −5V (10V total) or +12V and −3V (15V total). In dual-supply mode, the common-mode input range extends from the negative rail to VDD−1.5V, and the output pulls down to the negative rail rather than ground.
How does the input offset voltage of the TLC372CPSG4 affect precision applications?
The TLC372CPSG4 guarantees a maximum input offset voltage of 5mV at 25°C (with 6.5mV max over full temperature range), directly impacting trip-point accuracy in voltage-monitoring circuits. For a 24V supply monitored via a 10:1 resistor divider, this translates to ±50mV uncertainty at the input - requiring careful reference selection and layout to maintain system-level accuracy within ±0.2%.
Is the TLC372CPSG4 pin-compatible with the LM393?
Yes, the TLC372CPSG4 is explicitly pin-compatible with the LM393 per TI's official documentation - sharing identical SOIC-8 pin assignments for VDD, GND, and both comparator inputs/outputs. However, due to its CMOS architecture, the TLC372CPSG4 draws significantly less supply current (150µA vs. 1mA typical) and offers superior input impedance and speed, making it a functional upgrade without PCB modification.
TLC372CPSG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Series:
- LinCMOS™
- Packaging:
- Tube
- 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
TLC372CPSG4 FAQ
1.How can I place an order for TLC372CPSG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC372CPSG4 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 TLC372CPSG4 reliable?
The price and inventory of TLC372CPSG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC372CPSG4 is usually 5 days.
3.What payment methods are accepted for TLC372CPSG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC372CPSG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC372CPSG4?
TLC372CPSG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC372CPSG4 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 TLC372CPSG4?
For technical support, including TLC372CPSG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC372CPSG4 requirements.
6.How does Aetrix verify that TLC372CPSG4 is sourced from the original manufacturer or authorized distributors?
All TLC372CPSG4 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 TLC372CPSG4 meets industry standards.
7.What is the process for return or replacement of TLC372CPSG4?
All TLC372CPSG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC372CPSG4, 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 TLC372CPSG4 part is unused and in its original packaging.
Return procedure for TLC372CPSG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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