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Texas Instruments TLC393CDR
- Part No.:
- TLC393CDR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC393CDR.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:5,806
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Product details
Overview
TLC393CDR from Texas Instruments is a dual micropower voltage comparator in SOIC-8 package, operating from 3 V to 16 V single supply, delivering 110 µW typical quiescent power at 5 V, 2.5 µs typical propagation delay (tPLH) with 5-mV overdrive, and 5 mV max input offset voltage - used in battery-powered supervisory circuits and low-power analog threshold detection.
For engineers reviewing the TLC393CDR datasheet, TLC393CDR pinout, TLC393CDR application, or TLC393CDR equivalent, this page provides verified commercial-grade specifications, D-package terminal mapping, LinCMOS™-enabled low-input-bias-current operation, and direct alternatives for voltage-comparator-based power monitoring and PWM control designs.
Technical Context
The TLC393CDR implements two independent comparators using Texas Instruments' LinCMOS™ process, enabling high input impedance (>1012 Ω), ultra-low input bias current (5 pA typ at 25°C), and stable input offset voltage (≤5 mV) across temperature. Its open-drain CMOS output stage requires external pull-up and supports interfacing to TTL, CMOS, or microcontroller I/O pins.
Designed for single-supply operation (3–16 V), it maintains functional common-mode input range from −0.2 V to VDD−1.5 V and delivers rail-to-rail input capability without phase reversal. ESD protection per MIL-STD-883C Method 3015.2 (2000 V) ensures robust handling in production environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 16 V - enables direct use with 3.3 V, 5 V, and 12 V systems without level-shifting. |
| Quiescent Supply Current | 22–40 µA (both comparators, 25°C) - supports multi-year battery life in always-on sensor nodes. |
| Input Offset Voltage | ≤5 mV (max, 0°C to 70°C) - ensures reliable threshold detection within ±2.5 mV accuracy at room temperature. |
| Propagation Delay (tPLH) | 2.5 µs typ (5-mV overdrive, VDD = 5 V) - suitable for sub-100-kHz window comparators and slow-speed PWM timing. |
| Input Bias Current | 5 pA typ (25°C), ≤0.6 nA (70°C) - preserves signal integrity in high-impedance sensor interfaces (e.g., thermistors, photodiodes). |
| Output Type | Open-drain CMOS - allows wired-OR logic, flexible pull-up voltage selection (up to 16 V), and compatibility with mixed-voltage systems. |
| Operating Temperature | 0°C to 70°C - qualified for commercial-grade embedded control, industrial HMI, and consumer electronics. |
Pinout & Package
SOIC-8 (D package), 1.27 mm pitch, tape-and-reel (2500 pcs/reel). Pin 1 marked by beveled corner or dot; pin numbering follows standard SOIC convention (counterclockwise from top-left).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Open-drain output of comparator A - requires external pull-up; sinks up to 20 mA. |
| 2 | IN− A | Inverting input of comparator A - accepts voltages from −0.2 V to VDD−1.5 V. |
| 3 | IN+ A | Non-inverting input of comparator A - same common-mode range as IN− A. |
| 4 | GND | Analog/digital ground reference - must be low-impedance and decoupled with 0.1 µF capacitor. |
| 5 | VDD | Positive supply rail - supports 3–16 V; internal ESD protection active up to ±18 V differential. |
| 6 | OUT B | Open-drain output of comparator B - electrically isolated from OUT A; shares no internal connection. |
| 7 | IN− B | Inverting input of comparator B - fully independent; no crosstalk with comparator A. |
| 8 | IN+ B | Non-inverting input of comparator B - identical electrical characteristics to IN+ A. |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ Process Technology | Delivers <1 nA input bias current and stable offset voltage under differential stress - eliminates need for external nulling in precision threshold applications. |
| Dual Independent Comparators | Enables simultaneous monitoring of two separate analog signals (e.g., overvoltage + undervoltage) without shared internal nodes or timing coupling. |
| Single-Supply Operation | Operates down to 3 V with full input common-mode range to GND - eliminates negative rail requirement in portable equipment. |
| On-Chip ESD Protection | Rated to 2000 V per MIL-STD-883C Method 3015.2 - reduces need for external TVS diodes in board-level ESD protection schemes. |
| Low-Power Micropower Design | Consumes only 110 µW at 5 V - enables integration into energy-harvesting systems where average current must stay below 25 µA. |
Applications
| Battery Voltage Supervisor | PWM Motor Speed Control |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage during charging/discharging to trigger cutoff or alert. IC Role / Device Role / Timing Role: Dual comparator configured as window detector - one channel for upper threshold (4.2 V), one for lower (2.8 V). Use Value: Enables precise 5-mV threshold resolution without trimming; 22 µA supply current extends runtime between battery checks. |
Use Scenario: Generating variable-duty-cycle square wave for brushed DC motor speed regulation. IC Role / Device Role / Timing Role: One comparator acts as oscillator (hysteresis via feedback), the other compares ramp vs. control voltage. Use Value: Open-drain outputs interface directly to 5 V or 12 V half-H drivers; low input bias avoids timing drift in RC oscillator networks. |
| Industrial Sensor Interface | Power Supply Sequencing Monitor |
|
Use Scenario: Converting high-impedance thermistor or RTD output into digital ON/OFF signal for PLC input. IC Role / Device Role / Timing Role: Comparator A compares sensor voltage against fixed reference; comparator B validates reference stability. Use Value: 5 pA input bias prevents loading of >100 kΩ sensor elements; rail-to-rail input accommodates unbuffered sensor outputs. |
Use Scenario: Ensuring proper startup order of multiple supply rails (e.g., 12 V → 5 V → 3.3 V) in FPGA-based systems. IC Role / Device Role / Timing Role: Each comparator monitors one rail; outputs feed AND gate to enable downstream regulator enable pins. Use Value: 5 mV max offset ensures sequencing margin remains intact even with ±1% resistor tolerances in divider networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM393DR | Higher supply current (500 µA typ), wider offset (7 mV max), no LinCMOS™ - 100× higher input bias current. | Suitable for non-battery applications where cost is primary; not recommended for high-Z sensors or µA-level power budgets. | Select LM393DR only when legacy footprint compatibility is required and power/precision constraints are relaxed. |
| TLC3702CDR | Push-pull output (no external pull-up needed), faster response (1.5 µs), but higher quiescent current (120 µA typ). | Better for driving LEDs or logic inputs directly; unsuitable where wired-OR or level translation is required. | Choose TLC3702CDR when output drive simplicity outweighs micropower needs and open-drain flexibility is unnecessary. |
Compared with LM393DR and TLC3702CDR, the TLC393CDR uniquely balances ultra-low power (22 µA), precision (5 mV offset), and open-drain versatility - making it optimal for battery-critical, high-impedance, or multi-rail interface applications where neither alternative satisfies all three requirements simultaneously.
Availability
TLC393CDR is available at Aetrix Electronics and suitable for battery-powered sensor nodes, industrial power supervisors, and portable medical devices requiring stable component supply across long production lifecycles.
Supply support for TLC393CDR 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, embedded processing, and connectivity technologies, with decades of expertise in precision analog IC design.
The TLC393 series belongs to TI's LinCMOS™ comparator product line, engineered specifically for micropower, rail-to-rail input, and high-impedance sensor interface applications in commercial and industrial systems.
FAQ
What is the maximum supply voltage rating for the TLC393CDR?
The TLC393CDR has an absolute maximum supply voltage (VDD) of 18 V, but its recommended operating range is 3 V to 16 V. Operating beyond 16 V may degrade long-term reliability or exceed thermal limits, especially at elevated ambient temperatures. The device's internal ESD protection remains effective up to ±18 V differential, but sustained overvoltage on VDD risks permanent damage. Always observe derating curves in the dissipation rating table for SOIC-8 packages.
Does the TLC393CDR support rail-to-rail input operation?
Yes, the TLC393CDR supports rail-to-rail input operation within its specified common-mode range: −0.2 V to VDD−1.5 V at 25°C, and 0 V to VDD−1.5 V across the full 0°C to 70°C operating range. This allows direct interfacing with sensors or DACs that swing near GND or VDD, provided inputs remain within those bounds to avoid forward-biasing internal ESD diodes.
Can the TLC393CDR outputs drive an LED directly?
No - the TLC393CDR features open-drain outputs that require an external pull-up resistor to a positive supply. To drive an LED, connect the anode to VDD (or another appropriate voltage), the cathode to an output pin, and ensure the series resistor limits current to ≤20 mA. Without the pull-up, the output cannot source current, and the LED will not illuminate. The 20 mA sink rating applies only when the output is actively low.
What is the input offset voltage specification for the TLC393CDR over temperature?
The TLC393CDR has a maximum input offset voltage of 6.5 mV across its full operating temperature range (0°C to 70°C), with a typical value of 1.4–5 mV at 25°C. This specification is guaranteed per the datasheet's electrical characteristics table and reflects worst-case performance under production test conditions - critical for applications requiring consistent threshold accuracy without calibration.
Is the TLC393CDR pin-compatible with the LM393DR in SOIC-8 package?
Yes, the TLC393CDR and LM393DR share identical SOIC-8 pinouts (OUT A, IN− A, IN+ A, GND, VDD, OUT B, IN− B, IN+ B), enabling drop-in replacement in existing layouts. However, differences in input bias current (5 pA vs. 25 nA), supply current (22 µA vs. 500 µA), and offset voltage (5 mV vs. 7 mV max) mean functional equivalence requires verification in the target circuit - especially in high-impedance or low-power contexts.
TLC393CDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- LinCMOS™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- MOS, Open-Drain
- Voltage - Supply, Single/Dual (±):
- 3V ~ 16V
- :
- 5mV @ 10V
- Voltage - Input Offset (Max):
- 5pA @ 5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 50µA
- Current - Quiescent (Max):
- 84dB CMRR
- CMRR, PSRR (Typ):
- 4.5µs
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
TLC393CDR FAQ
1.How can I place an order for TLC393CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC393CDR 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 TLC393CDR reliable?
The price and inventory of TLC393CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC393CDR is usually 5 days.
3.What payment methods are accepted for TLC393CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC393CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC393CDR?
TLC393CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC393CDR 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 TLC393CDR?
For technical support, including TLC393CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC393CDR requirements.
6.How does Aetrix verify that TLC393CDR is sourced from the original manufacturer or authorized distributors?
All TLC393CDR 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 TLC393CDR meets industry standards.
7.What is the process for return or replacement of TLC393CDR?
All TLC393CDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC393CDR, 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 TLC393CDR part is unused and in its original packaging.
Return procedure for TLC393CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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