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Texas Instruments TLC372CPWRG4
- Part No.:
- TLC372CPWRG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC372CPWRG4.pdf
- Description:
- IC COMPARATOR 2 DIFF 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,067
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Product details
Overview
TLC372CPWRG4 from Texas Instruments is a dual CMOS voltage comparator with open-drain outputs, designed for low-power, high-impedance sensing in single- or dual-supply systems. It delivers 200ns typical response time at 5V, 150µA supply current per channel, and 5pA typical input bias current, enabling precision threshold detection in battery-powered instrumentation and industrial monitoring circuits.
For engineers reviewing the TLC372CPWRG4 datasheet, TLC372CPWRG4 pinout, TLC372CPWRG4 application, or TLC372CPWRG4 equivalent, key selection criteria include its rail-to-rail common-mode input range (including ground), TTL/MOS/CMOS-compatible open-drain outputs, and ±18V differential input voltage rating - all critical for robust level-shifting and window-comparator designs.
Technical Context
The TLC372CPWRG4 integrates two independent CMOS-input comparators sharing a single 3V–16V supply, with each channel featuring ultra-high input impedance (>10¹²Ω) and sub-nA input bias current to minimize loading on high-impedance sources like sensor bridges or photodiode amplifiers. Its open-drain output stage supports external pull-up voltages up to 16V, enabling logic-level translation across disparate supply domains.
It operates over 0°C to 70°C (commercial grade), supports single-supply operation with ground-referenced inputs, and includes built-in ESD protection rated at 1000V HBM. The device avoids phase inversion within its full common-mode range and requires no external hysteresis for stable operation - though hysteresis networks can be added for noise immunity in slow-moving input signals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 16V - enables direct operation from Li-ion batteries (3.3V/3.7V), 5V logic rails, and industrial 12V/15V supplies without regulation. |
| Input Bias Current | 5pA typical - preserves signal integrity when interfacing with megaohm-range sensors (e.g., pH electrodes, piezoresistive strain gauges). |
| Response Time | 200ns typical (100mV overdrive, 5V supply) - supports fast edge detection in motor control feedback or pulse-width monitoring. |
| Input Offset Voltage | 5mV max at 25°C - defines minimum detectable voltage difference between IN+ and IN− for reliable threshold crossing. |
| Common-Mode Range | 0V to VDD−1V - allows direct ground-referenced input sensing without level-shifting circuitry. |
| Output Type | N-channel open-drain - permits wired-AND logic, multi-comparator arbitration, and interface to 3.3V/5V/12V logic families via external pull-up. |
| ESD Rating | 1000V HBM - provides baseline handling robustness during PCB assembly and system integration. |
Pinout & Package
TLC372CPWRG4 is housed in a 8-pin TSSOP (PW) package with 0.65mm pitch, measuring 3.0mm × 4.4mm × 1.2mm - optimized for space-constrained industrial and portable electronics layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Comparator A output | Open-drain N-channel drain - must be pulled up externally; sinks current when IN+ < IN−. |
| 2 (IN− A) | Comparator A inverting input | High-impedance CMOS node - accepts signals from 0V to VDD−1V; no phase reversal within range. |
| 3 (IN+ A) | Comparator A non-inverting input | High-impedance CMOS node - identical voltage range and bias behavior as IN− A. |
| 4 (GND) | Power ground reference | Return path for supply and output sink current; connects to system ground plane for noise control. |
| 5 (IN+ B) | Comparator B non-inverting input | Independent high-Z input - electrically isolated from Channel A; supports separate threshold references. |
| 6 (IN− B) | Comparator B inverting input | Independent high-Z input - enables dual-threshold or window-comparator configurations without crosstalk. |
| 7 (OUT B) | Comparator B output | Open-drain N-channel drain - functionally identical to OUT A; supports independent or wired-AND logic. |
| 8 (VDD) | Positive supply rail | Accepts 3V–16V DC - powers both comparators and internal bias circuitry; requires local 0.1µF ceramic bypass. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 5pA typical - eliminates significant error voltage across high-value source impedances (>1MΩ), preserving accuracy in precision sensor interfaces. |
| Single-supply compatibility | Operates with GND as V− - eliminates need for negative rail in ground-referenced applications like battery voltage monitors or analog front-ends. |
| Fast propagation delay | 200ns typical at 5V - ensures timely response to transient events such as overcurrent detection or fault signaling in power systems. |
| Wide common-mode input range | Includes 0V (ground) - simplifies design of level-shifted comparators and eliminates input offset errors caused by rail limitations. |
| Open-drain output flexibility | Supports pull-up to any voltage ≤16V - enables seamless interfacing with mixed-voltage logic families (e.g., 3.3V MCU + 12V PLC I/O). |
Applications
| Battery Voltage Monitor | Window Comparator |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage during charge/discharge cycles to trigger under-voltage lockout (UVLO) and over-voltage protection (OVP). IC Role / Device Role / Timing Role: Dual comparator implementing independent high- and low-threshold detection using shared reference and resistor divider network. Use Value: Enables precise 2.7V UVLO and 4.25V OVP thresholds with <5mV offset error, minimizing false trips and maximizing usable battery capacity. |
Use Scenario: Supervising 24V PLC power supply to assert fault alerts if voltage drifts outside 19.2V–30V window. IC Role / Device Role / Timing Role: Two independent comparators configured as upper- and lower-bound detectors with common 2.5V reference. Use Value: Delivers deterministic alert timing (<200ns delay) and zero additional supply current beyond 300µA total, reducing thermal load in enclosed control cabinets. |
| Industrial Sensor Interface | Level-Shifting Logic Detector |
|
Use Scenario: Converting millivolt-level output from RTD or thermocouple amplifier into clean digital logic for microcontroller input. IC Role / Device Role / Timing Role: Single comparator channel comparing conditioned sensor signal against programmable reference voltage. Use Value: 5pA input bias prevents loading of high-output-impedance amplifiers (e.g., instrumentation amps with >10kΩ gain-setting resistors), maintaining signal fidelity. |
Use Scenario: Detecting logic transitions on a 12V automotive CAN bus line and translating them to 3.3V levels compatible with an ARM Cortex-M MCU. IC Role / Device Role / Timing Role: Comparator acting as voltage-level translator with open-drain output pulled to 3.3V. Use Value: Eliminates need for dedicated level-shifter IC; 200ns response supports CAN FD bit rates up to 2 Mbps with margin. |
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), slower response (1.3µs vs. 200ns), bipolar input stage. | Less suitable for high-impedance sensor interfaces or fast edge detection; better for cost-sensitive, low-speed industrial controls. | Select LM393DR only when ultra-low power or femtoampere bias is not required and board space allows larger SOIC-8 footprint. |
| TLC372CDR | Same electrical specs and pinout, but in plastic DIP (P) package instead of TSSOP (PW); higher thermal resistance (84.6°C/W vs. 149°C/W). | Preferred for through-hole prototyping or legacy wave-soldered assemblies; unsuitable for fine-pitch SMT production. | Choose TLC372CDR for hand-soldered evaluation or repair; TLC372CPWRG4 is optimal for automated reflow and compact PCBs. |
Compared with LM393DR and TLC372CDR, the TLC372CPWRG4 offers superior input impedance and speed in a space-saving TSSOP package - making it the preferred choice for modern low-power, high-density designs where sensor fidelity and layout efficiency are critical.
Availability
TLC372CPWRG4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, battery management systems, and PLC power supervision requiring stable component supply across extended temperature and voltage ranges.
Supply support for TLC372CPWRG4 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 TLC372 series belongs to TI's precision comparator product line, engineered specifically for low-power, high-input-impedance applications including sensor signal conditioning, power supply monitoring, and industrial control feedback loops.
FAQ
What is the operating temperature range for the TLC372CPWRG4?
The TLC372CPWRG4 is specified for commercial-grade operation from 0°C to 70°C ambient temperature. This range is validated per JEDEC JESD22-A108 and applies to all electrical characteristics in the official datasheet. It is not rated for extended industrial (−40°C to 85°C) or automotive temperature ranges - those require the TLC372IPWR or TLC372QPWR variants respectively. Always verify thermal derating in high-power-density layouts.
Can the TLC372CPWRG4 operate from a single 3.3V supply?
Yes, the TLC372CPWRG4 supports single-supply operation down to 3V, making it fully compatible with 3.3V systems. At 3.3V, it maintains 5pA typical input bias current and retains its full common-mode input range (0V to VDD−1V = 0V to 2.3V). Output sinking capability remains functional, though VOL rises slightly - confirmed at 400mV max with 4mA load per the datasheet's electrical characteristics table.
Does the TLC372CPWRG4 have push-pull or open-drain outputs?
The TLC372CPWRG4 features open-drain (n-channel) outputs on both channels. Neither output can source current - they only sink current when active. An external pull-up resistor is mandatory for logic-level generation. This architecture enables wired-AND functionality, voltage-level translation, and direct interface to multiple logic families without level-shifter ICs. The datasheet explicitly states "outputs are n-channel open-drain configurations" in Section 2.
Is the TLC372CPWRG4 pin-compatible with the LM393?
Yes, the TLC372CPWRG4 is pin-compatible with the LM393 in the same TSSOP-8 (PW) package. Both devices share identical pin assignments: OUT A, IN− A, IN+ A, GND, IN+ B, IN− B, OUT B, VDD. However, electrical differences exist - notably the TLC372CPWRG4's CMOS input stage (5pA bias vs. LM393's 25nA) and faster response (200ns vs. 1.3µs). No PCB changes are needed for drop-in replacement where performance margins allow.
What is the maximum differential input voltage the TLC372CPWRG4 can tolerate?
The TLC372CPWRG4 has an absolute maximum differential input voltage rating of ±18V, as specified in Section 5.1 of the datasheet. This means the voltage difference between IN+ and IN− pins may not exceed +18V or fall below −18V under any condition - even momentarily during power-up or transient events. Exceeding this limit risks permanent damage to the input ESD protection diodes and internal CMOS structure.
TLC372CPWRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-TSSOP (0.173", 4.40mm 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-TSSOP
TLC372CPWRG4 FAQ
1.How can I place an order for TLC372CPWRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC372CPWRG4 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 TLC372CPWRG4 reliable?
The price and inventory of TLC372CPWRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC372CPWRG4 is usually 5 days.
3.What payment methods are accepted for TLC372CPWRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC372CPWRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC372CPWRG4?
TLC372CPWRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC372CPWRG4 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 TLC372CPWRG4?
For technical support, including TLC372CPWRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC372CPWRG4 requirements.
6.How does Aetrix verify that TLC372CPWRG4 is sourced from the original manufacturer or authorized distributors?
All TLC372CPWRG4 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 TLC372CPWRG4 meets industry standards.
7.What is the process for return or replacement of TLC372CPWRG4?
All TLC372CPWRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC372CPWRG4, 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 TLC372CPWRG4 part is unused and in its original packaging.
Return procedure for TLC372CPWRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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