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Texas Instruments TLC393CD
- Part No.:
- TLC393CD
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC393CD.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,755
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Product details
Overview
TLC393CD from Texas Instruments is a dual micropower voltage comparator in SOIC-8 package, designed for single-supply operation (3 V to 16 V), featuring 110 µW typical supply power at 5 V, 2.5 µs typical propagation delay (tPLH) with 5-mV overdrive, and open-drain CMOS outputs. It serves as a low-power replacement for LM393 in battery-powered sensing, supply monitoring, and PWM control circuits.
For engineers reviewing the TLC393CD datasheet, TLC393CD pinout, TLC393CD application, or TLC393CD equivalent, key selection criteria include its commercial-grade temperature range (0°C to 70°C), 5 mV max input offset voltage, ultra-low quiescent current (22–50 µA), open-drain output compatibility with mixed-voltage logic, and SOIC-8 footprint suitability for space-constrained industrial and consumer PCBs.
Technical Context
The TLC393CD implements two independent comparators using Texas Instruments' LinCMOS™ process, delivering high input impedance (>1012 Ω), sub-nA input bias current (5 pA typ at 25°C), and stable input offset voltage (≤5 mV typ) even under differential input stress. Its open-drain output stage requires an external pull-up resistor and supports interfacing to TTL, CMOS, or higher-voltage loads up to 16 V.
It operates across 3 V–16 V supply range with common-mode input voltage spanning 0 V to (VDD − 1.5 V), enabling direct sensing of signals near ground or rail. Absolute maximum ratings include ±18 V differential input voltage and 20 mA sink capability per output-critical for driving LEDs, MOSFET gates, or logic inputs in supervisory functions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 16 V - supports wide-input industrial and automotive auxiliary rails without regulation. |
| Quiescent Supply Current | 22–50 µA (both comparators) - enables multi-year battery life in always-on sensor nodes. |
| Input Offset Voltage | ≤5 mV (typ), ≤6.5 mV (max) - ensures reliable threshold detection within ±5 mV accuracy at room temperature. |
| Propagation Delay (tPLH) | 2.5 µs (typ) at 5-mV overdrive - provides fast response for motor control timing and supply fault detection. |
| Output Type | Open-drain CMOS - allows level-shifting, wired-OR logic, and direct interface to 3.3 V/5 V/12 V loads with external pull-up. |
| Input Bias Current | 5 pA (typ) at 25°C - minimizes loading on high-impedance sources like thermistors or photodiodes. |
| Operating Temperature | 0°C to 70°C - qualified for commercial environments including office equipment, consumer electronics, and embedded peripherals. |
Pinout & Package
Package: SOIC-8 (D package), surface-mount, 1.27 mm pitch, 4.9 mm × 3.9 mm body size. Tape-and-reel option available as TLC393CDR.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Open-drain output of comparator 1 - requires external pull-up; sinks up to 20 mA. |
| 2 | IN1− | Inverting input of comparator 1 - accepts common-mode voltages from 0 V to (VDD − 1.5 V). |
| 3 | IN1+ | Non-inverting input of comparator 1 - high-impedance node (<1 pA bias current) for precision reference comparison. |
| 4 | GND | Analog ground reference - must be low-impedance and decoupled with 0.1 µF capacitor near pin. |
| 5 | VDD | Positive supply rail - powers both comparators; supports 3 V–16 V operation with no separate analog/digital rails. |
| 6 | OUT2 | Open-drain output of comparator 2 - independently controllable; shares same VDD/GND with OUT1. |
| 7 | IN2− | Inverting input of comparator 2 - electrically isolated from IN1−; enables dual-threshold or window-comparator topologies. |
| 8 | IN2+ | Non-inverting input of comparator 2 - identical electrical characteristics to IN1+; supports independent signal conditioning paths. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 110 µW typical at 5 V - reduces thermal load and extends battery runtime in portable instrumentation. |
| LinCMOS™ process technology | Sub-pA input bias and stable offset voltage - eliminates drift-induced false triggers in long-duration monitoring applications. |
| ESD protection | 2000 V HBM rating - enhances robustness during board assembly and field handling without external protection diodes. |
| Wide supply range | 3 V to 16 V operation - eliminates need for dedicated LDOs when interfacing with diverse system rails. |
| Open-drain outputs | 16 V output voltage tolerance - enables direct interface to 12 V logic or LED drivers without level translators. |
Applications
| Battery Voltage Monitor | Motor Speed Controller |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage during charging/discharging to trigger low-battery warning or cutoff. IC Role / Device Role / Timing Role: Dual comparator configured as window detector - one channel for under-voltage lockout (UVLO), second for over-voltage protection (OVP). Use Value: 5 mV offset ensures ±25 mV threshold accuracy; 22 µA quiescent current adds negligible drain to 200 mAh coin-cell backup systems. |
Use Scenario: Generating variable-duty-cycle PWM signals for brushed DC motor speed regulation via potentiometer input. IC Role / Device Role / Timing Role: One comparator acts as oscillator (hysteresis-based relaxation oscillator), the other compares ramp against control voltage. Use Value: 2.5 µs propagation delay enables >100 kHz PWM frequencies; open-drain outputs directly drive gate of external N-channel MOSFET. |
| Power Supply Supervisor | Two-Phase Clock Generator |
|
Use Scenario: Detecting brown-out conditions on 5 V and 12 V system rails to assert microcontroller reset or interrupt. IC Role / Device Role / Timing Role: Each comparator monitors a different rail - IN1+ tied to scaled-down rail voltage, IN2+ to reference divider. Use Value: Common-mode range extending to (VDD − 1.5 V) allows direct sensing of 12 V rail with 5 V supply; 84 dB CMMR rejects ripple-induced false trips. |
Use Scenario: Generating non-overlapping clock phases for half-bridge motor drivers or synchronous rectifiers. IC Role / Device Role / Timing Role: Cross-coupled configuration where each comparator's output feeds the other's inverting input to create complementary dead-time-controlled outputs. Use Value: Matched propagation delays (tPLH/tPHL ≤2.5 µs) ensure precise phase alignment; SOIC-8 layout simplifies routing of critical timing paths. |
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), slower response (1.3 µs min but with higher overdrive dependency), no LinCMOS™ input stability. | Acceptable in non-battery applications where power is not constrained; less suitable for precision low-offset sensing. | Select LM393DR only if cost is primary driver and 20× higher current draw is acceptable. |
| TLC3702CD | Push-pull (not open-drain) outputs, slightly higher supply current (120 µA typ), same LinCMOS™ performance and 0°C–70°C rating. | Eliminates need for external pull-ups but cannot perform wired-OR or level-shift; better for driving CMOS logic directly. | Choose TLC3702CD when driving standard logic loads without voltage translation; avoid when interfacing to 12 V peripherals. |
Compared with LM393DR and TLC3702CD, the TLC393CD uniquely balances micropower operation (22 µA), open-drain flexibility, and LinCMOS™ precision-making it optimal for battery-aware, multi-rail, and noise-immune supervisory designs where both low power and interface versatility are required.
Availability
TLC393CD is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial power supervision, and motor control subsystems requiring stable component supply across extended production lifecycles.
Supply support for TLC393CD 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 power-efficient design.
The TLC393CD belongs to TI's LinCMOS™ comparator family, engineered specifically for micropower, rail-to-rail-capable, single-supply operation in portable, industrial, and automotive-adjacent applications where reliability and low standby current are essential.
FAQ
What is the maximum supply voltage for the TLC393CD?
The TLC393CD supports a recommended operating supply voltage range of 3 V to 16 V. Its absolute maximum rating is 18 V, but sustained operation above 16 V risks parametric degradation or reliability failure. For designs using 12 V or 15 V rails, the TLC393CD delivers full functionality without external regulators - a key advantage over comparators limited to 5.5 V or lower.
Does the TLC393CD have internal ESD protection?
Yes, the TLC393CD integrates on-chip ESD protection circuits rated to 2000 V per MIL-STD-883C, Method 3015.2 (Human Body Model). This eliminates the need for discrete TVS diodes in most board-level implementations, though proper handling precautions remain essential to prevent parametric shift due to repeated ESD exposure.
Can the TLC393CD operate from a 3.3 V supply?
Yes, the TLC393CD is fully specified down to 3 V supply voltage. At 3.3 V, it maintains 22–50 µA supply current, 5 mV max input offset, and functional open-drain outputs capable of sinking 20 mA - making it compatible with modern 3.3 V microcontrollers and logic families when paired with appropriate pull-up resistors.
What is the purpose of the NC pins on the TLC393CD SOIC-8 package?
The TLC393CD SOIC-8 package has no NC (No Connection) pins - all eight pins are functional: OUT1, IN1−, IN1+, GND, VDD, OUT2, IN2−, IN2+. The "NC" labels in the D-package top-view diagram refer to alternate packages (JG, PW) and do not apply to the TLC393CD; this part uses the full 8-pin SOIC pinout without unused terminals.
How does the TLC393CD differ from the TLC393ID?
The TLC393CD is rated for 0°C to 70°C operation (commercial grade), while the TLC393ID extends to −40°C to 85°C (industrial grade). Electrical specs are otherwise identical - same 5 mV max offset, 2.5 µs tPLH, and 22 µA supply current - but the TLC393ID undergoes additional temperature cycling and screening for harsher environments such as factory automation or outdoor electronics.
TLC393CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- LinCMOS™
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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
TLC393CD FAQ
1.How can I place an order for TLC393CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC393CD 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 TLC393CD reliable?
The price and inventory of TLC393CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC393CD is usually 5 days.
3.What payment methods are accepted for TLC393CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC393CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC393CD?
TLC393CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC393CD 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 TLC393CD?
For technical support, including TLC393CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC393CD requirements.
6.How does Aetrix verify that TLC393CD is sourced from the original manufacturer or authorized distributors?
All TLC393CD 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 TLC393CD meets industry standards.
7.What is the process for return or replacement of TLC393CD?
All TLC393CD units undergo pre-shipment inspection (PSI). If there is an issue with TLC393CD, 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 TLC393CD part is unused and in its original packaging.
Return procedure for TLC393CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC393CD Tags
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