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Texas Instruments TLC372CPSR
- Part No.:
- TLC372CPSR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
TLC372CPSR.pdf
- Description:
- IC COMPARATOR 2 DIFF 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,960
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Product details
Overview
TLC372CPSR 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 TLC372CPSR datasheet, TLC372CPSR pinout, TLC372CPSR application, or TLC372CPSR equivalent, this page provides verified electrical parameters, package-specific terminal mapping, real-world use cases, and validated alternative options for industrial control, PLC voltage supervision, and low-power analog signal conditioning.
Technical Context
The TLC372CPSR integrates two independent high-impedance (10¹²Ω typical) CMOS comparators with rail-to-rail common-mode input range including ground. Each channel features an n-channel open-drain output capable of sinking up to 16mA while supporting external pull-up voltages up to 16V - decoupling logic level translation from supply voltage constraints.
Its internal ESD protection meets 1000V HBM rating, and input offset voltage is specified at ≤5mV over 0°C–70°C. The device operates with no phase inversion across its full common-mode range and supports hysteresis implementation via external resistor networks to suppress noise-induced chatter near switching thresholds.
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, or industrial 12V/15V supplies without regulation. |
| Input Bias Current | 5pA typical - preserves signal integrity when interfacing with high-impedance sources like photodiodes or RC timing networks. |
| Response Time | 200ns typical (100mV overdrive, 5V supply) - supports fast edge detection in motor commutation feedback or pulse-width monitoring. |
| Output Configuration | N-channel open-drain - allows wired-AND logic, level-shifting to 3.3V/5V/12V domains, and compatibility with TTL/MOS/CMOS loads. |
| Input Offset Voltage | ≤5mV max at 25°C - ensures accurate threshold detection in ±1% voltage window comparators for power supply monitoring. |
| Common-Mode Range | 0V to VDD−1V - permits direct ground-referenced sensing (e.g., current shunt monitoring) without level-shifting circuitry. |
| Supply Current | 150µA typical (both comparators, 5V) - extends battery life in portable instrumentation and wireless sensor nodes. |
Pinout & Package
TLC372CPSR is housed in a 8-pin TSSOP (PW) package with 0.65mm pitch, moisture sensitivity level 1, and RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Open-drain output of Comparator A - requires external pull-up; sinks current when IN+ < IN−. |
| 2 | IN− A | Inverting input of Comparator A - accepts signals from 0V to VDD−1V; 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 Channel A; identical specs. |
| 6 | IN− B | Inverting input of Comparator B - supports independent reference configuration per channel. |
| 7 | OUT B | Open-drain output of Comparator B - independently controllable; supports wired-AND with OUT A. |
| 8 | VDD | Positive supply pin - powers both comparators; accepts 3V–16V; bypass with 0.1µF ceramic capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Single/dual-supply operation | Operates from 3V–16V single supply or ±1.5V–±8V split supplies - eliminates need for dedicated negative rails in analog front-ends. |
| Ultra-low input bias current | 5pA typical - prevents loading errors in high-Z sensor interfaces (e.g., pH electrodes, piezoelectric transducers). |
| ESD-protected inputs/outputs | 1000V HBM rating - reduces field failure risk during PCB handling and system integration without external clamps. |
| Wide common-mode input range | Includes ground and extends to VDD−1V - enables direct sensing of signals referenced to system ground (e.g., battery voltage monitoring). |
| Pin-compatible with LM393 | Same 8-pin SOIC/TSSOP pinout and functional behavior - allows drop-in replacement in legacy designs with improved CMOS performance. |
Applications
| PLC Power Supervision | Battery Voltage Monitoring |
|---|---|
|
Use Scenario: Detect undervoltage (UV) and overvoltage (OV) conditions on a 24V industrial PLC power rail using a resistor divider and 2.5V reference. IC Role / Device Role / Timing Role: Dual comparator implements window comparator function - one channel triggers UV alert below 19.2V, the other triggers OV alert above 30V. Use Value: Enables fail-safe shutdown before brownout or overvoltage damage; 200ns response ensures timely intervention during transient events. |
Use Scenario: Monitor lithium-ion cell voltage (2.5V–4.2V) in portable medical devices to prevent deep discharge or overcharge. IC Role / Device Role / Timing Role: Comparator A detects low-voltage cutoff (e.g., 2.8V), Comparator B monitors upper threshold (e.g., 4.15V); open-drain outputs drive MCU GPIOs. Use Value: 5pA input bias avoids parasitic discharge of cell during measurement; 150µA total supply current minimizes standby power draw. |
| Motor Commutation Feedback | Optical Encoder Signal Conditioning |
|
Use Scenario: Convert sinusoidal back-EMF signals from BLDC motor windings into clean digital zero-crossing pulses for electronic commutation. IC Role / Device Role / Timing Role: Each comparator processes one winding's differential signal; hysteresis suppresses noise near zero crossings. Use Value: 200ns propagation delay ensures precise timing alignment between phase detection and MOSFET switching; rail-to-rail input accommodates varying amplitude. |
Use Scenario: Convert low-amplitude, noisy quadrature signals from incremental optical encoders into robust square-wave A/B channels. IC Role / Device Role / Timing Role: Dual comparator converts analog encoder outputs to digital logic; open-drain outputs interface directly with 3.3V microcontroller inputs. Use Value: 10¹²Ω input impedance prevents signal attenuation; wide supply range allows direct use of encoder's 5V supply without level shifters. |
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 input bias current; 1.3mA supply current; slower 1.3µs response. | Higher power consumption and lower input impedance limit use in ultra-low-power or high-Z sensor apps. | Select LM393DR only when cost is primary constraint and CMOS-level input performance is not required. |
| TLC372CDR | Same die and specs, but in SOIC-8 (D) package instead of TSSOP-8 (PW); identical temperature range (0°C–70°C). | No change in electrical behavior; differs only in footprint, thermal resistance (97.1°C/W vs. 149°C/W), and board area. | Choose TLC372CDR for through-hole prototyping or legacy SOIC layouts; TLC372CPSR preferred for space-constrained PCBs. |
Compared with LM393DR and TLC372CDR, the TLC372CPSR offers superior input impedance and lower quiescent current for battery-sensitive designs, while maintaining pin compatibility with both - enabling flexible layout and sourcing strategies without circuit redesign.
Availability
TLC372CPSR is available at Aetrix Electronics and suitable for industrial PLC supervision, portable medical device battery management, and motor control feedback requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for TLC372CPSR 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 components.
The TLC372 product line delivers low-power, high-precision dual comparators optimized for industrial automation, power management, and sensor signal conditioning - emphasizing reliability, wide supply flexibility, and noise-immune operation.
FAQ
What is the maximum supply voltage for TLC372CPSR?
The absolute maximum supply voltage for TLC372CPSR is 18V, but the recommended operating range is 3V to 16V. Operation beyond 16V risks exceeding safe power dissipation limits and may degrade long-term reliability. The device is characterized for stable performance across this full 3V–16V span, making TLC372CPSR suitable for both low-voltage battery systems and higher-voltage industrial rails.
Does TLC372CPSR support rail-to-rail input operation?
TLC372CPSR supports a common-mode input voltage range from 0V to VDD−1V, which includes ground but does not extend fully to VDD. This allows direct interfacing with ground-referenced signals (e.g., current-sense amplifiers or resistive dividers), but inputs must remain at least 1V below VDD. The specification is verified across 0°C–70°C for the TLC372C grade, confirming consistent behavior in commercial-temperature applications using TLC372CPSR.
Can TLC372CPSR outputs drive a 12V logic interface?
Yes - the open-drain outputs of TLC372CPSR can sink current while being pulled up to any voltage from 0V to 16V, independent of the VDD supply. To interface with a 12V logic system, connect a pull-up resistor from OUT A or OUT B to +12V. The output will pull low (≤400mV at 4mA) when active and float high to 12V when inactive, enabling seamless level translation without additional buffers - a key capability confirmed in the TLC372CPSR datasheet's switching characteristics section.
Is TLC372CPSR pin-compatible with LM393?
Yes - TLC372CPSR uses the same 8-pin TSSOP (PW) footprint and pin assignments as the LM393DR in matching packages, including identical VDD, GND, IN+, IN−, and OUT pin locations. Electrical differences (e.g., CMOS vs. bipolar inputs, 5pA vs. 250nA bias current) do not affect physical compatibility. This allows direct substitution in existing LM393-based designs where enhanced input impedance or lower supply current is beneficial, without PCB modification.
What is the typical input offset voltage for TLC372CPSR?
The typical input offset voltage for TLC372CPSR is 1mV at 25°C, with a maximum of 5mV across the full 0°C–70°C operating range. This value is measured under standard test conditions (VDD = 5V, VIC = VICRmin) and directly impacts threshold accuracy in precision window comparators or reference monitoring circuits. The low offset ensures minimal calibration overhead in applications such as power supply UV/OV detection using TLC372CPSR.
TLC372CPSR 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:
- 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
TLC372CPSR FAQ
1.How can I place an order for TLC372CPSR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC372CPSR 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 TLC372CPSR reliable?
The price and inventory of TLC372CPSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC372CPSR is usually 5 days.
3.What payment methods are accepted for TLC372CPSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC372CPSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC372CPSR?
TLC372CPSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC372CPSR 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 TLC372CPSR?
For technical support, including TLC372CPSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC372CPSR requirements.
6.How does Aetrix verify that TLC372CPSR is sourced from the original manufacturer or authorized distributors?
All TLC372CPSR 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 TLC372CPSR meets industry standards.
7.What is the process for return or replacement of TLC372CPSR?
All TLC372CPSR units undergo pre-shipment inspection (PSI). If there is an issue with TLC372CPSR, 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 TLC372CPSR part is unused and in its original packaging.
Return procedure for TLC372CPSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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