My Inquiry
My Account
Texas Instruments TLC372IP
- Part No.:
- TLC372IP
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC372IP.pdf
- Description:
- IC COMPARATOR 2 DIFF 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,947
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLC372IP 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 150µA typical supply current at 5V - enabling precision threshold detection in low-power industrial sensor interfaces and power-monitoring circuits.
For engineers reviewing the TLC372IP datasheet, TLC372IP pinout, TLC372IP application, or TLC372IP equivalent, key selection criteria include its −40°C to 85°C operating range, 5mV max input offset voltage, open-drain output compatibility with TTL/MOS/CMOS logic, and pin-compatibility with LM393 for drop-in replacement in legacy designs.
Technical Context
The TLC372IP implements two independent high-impedance (10¹²Ω typical) CMOS differential comparators with rail-to-rail common-mode input range including ground. Its open-drain outputs support wired-AND logic and level translation up to 16V, independent of VDD.
Each comparator features ultra-low input bias current (5pA typ), 200ns propagation delay under 100mV overdrive, and built-in ESD protection rated at 1000V HBM - making it suitable for high-impedance source interfacing and noise-sensitive analog monitoring applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 16V - supports single-supply (VDD/GND) or dual-supply (V+/V−) configurations with ≥3V differential. |
| Input Offset Voltage (max) | 5mV at 25°C - ensures accurate threshold detection with minimal trip-point error in precision monitoring. |
| Response Time | 200ns typical (100mV input step) - enables fast edge detection in timing-critical control loops. |
| Input Bias Current | 5pA typical - preserves signal integrity when interfacing with high-impedance sensors or RC networks. |
| Supply Current (two channels) | 150µA typical at 5V - reduces system power budget in battery-powered or energy-constrained designs. |
| Output Type | Open-drain N-channel - allows flexible pull-up to external voltages up to 16V and wired-AND logic implementation. |
| Operating Temperature | −40°C to +85°C - qualified for industrial environments including motor drives and PLC I/O modules. |
Pinout & Package
Package: 8-pin Plastic Dual-In-Line (PDIP), body width 0.300 inch (P package). RoHS-compliant, through-hole mountable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Open-drain output of Comparator A - requires external pull-up resistor for logic HIGH; sinks current when active. |
| 2 | IN− A | Inverting input of Comparator A - accepts voltage down to GND; differential input range extends to VDD − 1.5V. |
| 3 | IN+ A | Non-inverting input of Comparator A - same voltage range as IN− A; high-impedance node minimizes loading. |
| 4 | GND | Ground reference for single-supply operation; connects to V− in dual-supply mode. |
| 5 | IN+ B | Non-inverting input of Comparator B - electrically identical to IN+ A; supports independent threshold sensing. |
| 6 | IN− B | Inverting input of Comparator B - matches IN− A specs; enables dual-threshold or window-comparator topologies. |
| 7 | VDD | Positive supply pin - powers both comparators; accepts 3V–16V; bypass capacitor required at pin. |
| 8 | OUT B | Open-drain output of Comparator B - functionally identical to OUT A; supports independent or combined logic functions. |
Key Features
| Feature | Design Value |
|---|---|
| Single/dual-supply operation | Operates from 3V–16V single supply or ±1.5V to ±8V dual supply - simplifies power architecture in mixed-voltage systems. |
| Ultra-low input bias current | 5pA typical - eliminates significant voltage drop across high-value resistors used in precision reference dividers. |
| Fast TTL-compatible response | 200ns typical propagation delay - meets timing requirements for digital control feedback and pulse-width monitoring. |
| ESD-protected inputs/outputs | 1000V HBM rating - enhances robustness during board handling and field deployment without external protection. |
| Pin-compatible with LM393 | Same 8-pin PDIP footprint and pin mapping - enables direct replacement in existing LM393-based designs with improved performance. |
Applications
| Overvoltage Protection Circuit | Zero-Crossing Detector |
|---|---|
|
Use Scenario: Monitoring DC bus voltage in industrial motor drives to trigger shutdown if voltage exceeds safe limit. IC Role / Device Role / Timing Role: TLC372IP acts as precision threshold detector comparing sensed bus voltage against fixed reference; outputs drive fault latch circuitry. Use Value: 5mV max offset and 200ns response ensure reliable trip within <1µs of overvoltage onset, preventing IGBT damage. |
Use Scenario: Converting AC line voltage into clean digital zero-crossing pulses for phase-controlled dimmers or SMPS synchronization. IC Role / Device Role / Timing Role: TLC372IP compares AC waveform against 0V reference (GND); open-drain output pulls up to 3.3V logic rail. Use Value: Rail-to-rail common-mode input including ground enables direct AC coupling; 5pA bias current avoids waveform distortion. |
| Window Comparator for Power Supply Monitoring | Low-Power Battery Voltage Monitor |
|
Use Scenario: Detecting undervoltage and overvoltage conditions on a 24V PLC power rail using shared 2.5V reference. IC Role / Device Role / Timing Role: TLC372IP's dual comparators implement upper and lower thresholds via resistor divider; outputs generate UV_Alert and OV_Alert signals. Use Value: 150µA total supply current minimizes quiescent drain; open-drain outputs allow OR-ing of alerts onto single fault bus. |
Use Scenario: Monitoring lithium-ion cell voltage in portable medical devices to initiate low-battery warning before cutoff. IC Role / Device Role / Timing Role: TLC372IP compares cell voltage against precision 3.0V reference; output drives microcontroller interrupt pin. Use Value: 3V minimum supply enables operation directly from monitored cell; 5pA input bias prevents measurable discharge during sleep mode. |
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 typ), wider offset voltage (7mV max), slower response (1.3µs typ). | Less suitable for high-impedance sources or fast edge detection; better for cost-sensitive, non-critical applications. | Select LM393DR only when absolute lowest BOM cost is prioritized over speed, precision, or power efficiency. |
| TLC372CP | Identical electrical specs but rated for 0°C to 70°C commercial temperature range instead of −40°C to 85°C. | Not qualified for extended industrial ambient conditions; may exhibit parametric drift outside 0–70°C. | Choose TLC372CP only for indoor, temperature-controlled environments where full industrial grade is unnecessary. |
Compared with LM393DR and TLC372CP, the TLC372IP provides superior input precision (5pA vs. 25nA bias), faster response (200ns vs. 1.3µs), and guaranteed operation across −40°C to 85°C - making it the optimal choice for ruggedized industrial monitoring where accuracy, speed, and thermal reliability are critical.
Availability
TLC372IP is available at Aetrix Electronics and suitable for industrial motor control, PLC power monitoring, and battery management systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC372IP 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 IC design and industrial-grade qualification.
The TLC372IP belongs to TI's precision comparator product line, engineered specifically for high-accuracy, low-power voltage comparison in harsh industrial environments - emphasizing input stability, wide supply flexibility, and robust ESD tolerance.
FAQ
What is the maximum supply voltage rating for the TLC372IP?
The TLC372IP has an absolute maximum supply voltage (VDD) rating of 18V, but its 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 fully specified and characterized across 3V–16V, ensuring consistent performance in both low-voltage battery and higher-voltage industrial applications.
Does the TLC372IP support rail-to-rail input common-mode range?
Yes, the TLC372IP supports a common-mode input voltage range from GND (or V−) to VDD − 1.5V over the full −40°C to 85°C temperature range. This includes ground-referenced inputs, enabling direct interface with 0V-referenced sensors and AC signals without level-shifting circuitry - a key advantage over many bipolar comparators.
Can the TLC372IP outputs be connected together for wired-AND logic?
Yes, the TLC372IP features open-drain N-channel outputs that are explicitly designed for wired-AND configuration. Connecting OUT A and OUT B together with a shared pull-up resistor creates a logical AND function: the combined output goes LOW only if either comparator asserts. This is confirmed in the datasheet's "Description" section and functional block diagram.
Is the TLC372IP pin-compatible with the LM393?
Yes, the TLC372IP is pin-compatible with the LM393 in the 8-pin PDIP (P) package. Both share identical pin assignments for VDD, GND, IN+, IN−, and open-drain outputs. This allows direct PCB-level replacement in existing LM393 designs while delivering improved specifications including lower input bias current, faster response, and enhanced ESD protection.
What is the typical input offset voltage specification for the TLC372IP?
The TLC372IP has a maximum input offset voltage of 5mV at 25°C, with typical value of 1mV. This specification applies across the full −40°C to 85°C operating range, and is verified per the test condition VIC = VICRmin. The low offset ensures minimal threshold error in precision voltage monitoring applications such as battery end-of-charge detection or regulated power supply supervision.
TLC372IP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Series:
- LinCMOS™
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Through Hole
- :
- 8-PDIP
TLC372IP FAQ
1.How can I place an order for TLC372IP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC372IP 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 TLC372IP reliable?
The price and inventory of TLC372IP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC372IP is usually 5 days.
3.What payment methods are accepted for TLC372IP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC372IP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC372IP?
TLC372IP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC372IP 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 TLC372IP?
For technical support, including TLC372IP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC372IP requirements.
6.How does Aetrix verify that TLC372IP is sourced from the original manufacturer or authorized distributors?
All TLC372IP 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 TLC372IP meets industry standards.
7.What is the process for return or replacement of TLC372IP?
All TLC372IP units undergo pre-shipment inspection (PSI). If there is an issue with TLC372IP, 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 TLC372IP part is unused and in its original packaging.
Return procedure for TLC372IP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC372IP Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
-
LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP Semiconductors
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
