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Texas Instruments TLC393IDRDL
- Part No.:
- TLC393IDRDL
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC393IDRDL.pdf
- Description:
- PROTOTYPE
- Quantity:
- Payment:
- Shipping:
Inventory:4,350
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Product details
Overview
TLC393IDRDL from Texas Instruments is a dual micropower voltage comparator with open-drain CMOS outputs, designed for single-supply operation from 3 V to 16 V. It delivers 110 µW typical supply power at 5 V, 2.5 µs typical propagation delay (tPLH) with 5-mV overdrive, and 5 mV max input offset voltage across −40°C to 85°C - enabling precision threshold detection in battery-powered sensor interfaces and industrial monitoring systems.
For engineers reviewing the TLC393IDRDL datasheet, TLC393IDRDL pinout, TLC393IDRDL application, or TLC393IDRDL equivalent, key selection considerations include its industrial-temperature-rated LinCMOS™ process, rail-to-rail common-mode input range (0 V to VDD − 1.5 V), ultra-low input bias current (≤0.6 nA at 70°C), and compatibility with pull-up loads up to 16 V.
Technical Context
The TLC393IDRDL integrates two independent comparators on a single die using Texas Instruments' LinCMOS™ process, delivering high input impedance (>1012 Ω), stable input offset voltage under differential stress, and ESD protection rated to 2000 V (MIL-STD-883C). Its open-drain output stage requires external pull-up for logic-level translation and supports mixed-voltage interfacing.
It operates across −40°C to 85°C with guaranteed performance: supply current ≤65 µA (max) over temperature, common-mode rejection ratio ≥84 dB, and supply-voltage rejection ratio ≥84 dB - making it suitable for noisy industrial environments where supply ripple and ground shifts are present.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage range | 3 V to 16 V - enables direct interface with 3.3 V, 5 V, and 12 V systems without level-shifting. |
| Input offset voltage (max) | 7 mV over −40°C to 85°C - ensures reliable switching at small differential thresholds in precision sensing. |
| Propagation delay (tPLH) | 2.5 µs typ at 5 V, 5-mV overdrive - supports fast response in motor control feedback and overvoltage detection. |
| Supply current (both comparators) | 65 µA max over temperature - extends battery life in portable instrumentation and remote sensors. |
| Input bias current (max) | 2 nA at 85°C - minimizes error in high-impedance voltage divider or photodiode-based inputs. |
| Common-mode input range | 0 V to VDD − 1.5 V - allows direct sensing of signals near ground or rail in single-supply systems. |
| Output type | Open-drain CMOS - permits wired-OR logic, level translation up to 16 V, and flexible pull-up configuration. |
Pinout & Package
Package: SOIC-8 (D package), surface-mount, 8-pin narrow-body plastic small-outline integrated circuit.
| 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 - referenced against IN1+ for threshold comparison. |
| 3 | IN1+ | Non-inverting input of comparator 1 - accepts signals within common-mode range (0 V to VDD − 1.5 V). |
| 4 | GND | Analog/digital ground reference - must be low-impedance and decoupled with 0.1 µF capacitor. |
| 5 | VDD | Positive supply rail - powers both comparators; supports 3 V to 16 V operation. |
| 6 | OUT2 | Open-drain output of comparator 2 - independently configurable; shares no internal connection with OUT1. |
| 7 | IN2− | Inverting input of comparator 2 - electrically isolated from IN1−; supports dual independent thresholds. |
| 8 | IN2+ | Non-inverting input of comparator 2 - enables simultaneous monitoring of two distinct analog conditions. |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ process technology | Delivers <1 pA input bias current at 25°C and stable offset voltage under differential input stress - critical for high-precision DC sensing. |
| Dual independent comparators | Enables concurrent monitoring of two separate thresholds (e.g., overvoltage + undervoltage) without cross-coupling or shared timing paths. |
| Single-supply operation | Eliminates need for split rails; supports direct interface with microcontroller ADC references or sensor outputs in 3.3 V/5 V systems. |
| On-chip ESD protection | Rated to 2000 V per MIL-STD-883C Method 3015.2 - reduces external protection component count in industrial I/O modules. |
| Ultra-low power consumption | 22–40 µA typical supply current at 25°C - enables always-on wake-up circuits in energy-harvesting and battery-backed applications. |
Applications
| Motor Speed Control | Power Supply Supervision |
|---|---|
|
Use Scenario: Pulse-width-modulated (PWM) control of brushed DC motors using potentiometer-adjustable duty cycle. IC Role / Device Role / Timing Role: TLC393IDRDL compares oscillator ramp voltage against user-set threshold to generate variable-duty PWM signal driving half-H bridge drivers. Use Value: Micropower operation extends runtime in portable tools; open-drain outputs interface directly with SN75603/4 drivers without level shifters. |
Use Scenario: Dual-rail monitoring (5 V and 12 V) with early power-fail warning and microcontroller reset assertion. IC Role / Device Role / Timing Role: One comparator monitors 5 V rail against 2.5 V reference; second monitors 12 V rail via resistor divider - both drive µP interrupt and reset lines. Use Value: Guaranteed operation down to −40°C ensures reliability in outdoor telecom equipment; 5 mV offset tolerance prevents false resets during brownout conditions. |
| Two-Phase Clock Generation | Industrial Sensor Threshold Detection |
|
Use Scenario: Generating nonoverlapping clock phases for synchronous rectification or gate drivers in SMPS. IC Role / Device Role / Timing Role: TLC393IDRDL configured as astable multivibrator with RC timing network produces complementary 12 V logic outputs with adjustable dead time. Use Value: Rail-to-rail input range accommodates full 12 V swing; propagation delay consistency (<±0.5 µs) ensures precise phase separation and prevents shoot-through. |
Use Scenario: Detecting temperature, pressure, or current thresholds in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Compares conditioned sensor output (e.g., RTD bridge or current loop) against programmable reference to trigger alarm or digital latch. Use Value: Input bias current <2 nA avoids loading high-Z sensor bridges; 84 dB CMRR rejects noise from 50/60 Hz AC mains coupling into field wiring. |
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 voltage (7 mV max over 0°C–70°C), no extended temperature grade. | Limited to commercial-temp applications; unsuitable for industrial ambient above 70°C. | Select LM393DR only for cost-sensitive, room-temperature consumer designs where micropower is not required. |
| TLC3702CDR | Push-pull output (no external pull-up needed), faster tPLH (1.5 µs typ), but higher quiescent current (120 µA typ). | Preferred where active-high logic levels or reduced BOM count (no pull-up resistors) are prioritized over battery life. | Choose TLC3702CDR when system-level timing budget is tight and supply headroom allows higher current draw. |
Compared with LM393DR and TLC3702CDR, the TLC393IDRDL uniquely balances industrial-temperature operation, sub-100-µA supply current, and open-drain flexibility - making it optimal for long-life, wide-ambient embedded monitoring where power and reliability are co-constrained.
Availability
TLC393IDRDL is available at Aetrix Electronics and suitable for industrial sensor interfaces, battery-powered instrumentation, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC393IDRDL 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 and high-reliability manufacturing.
The TLC393IDRDL belongs to TI's LinCMOS™ comparator family, engineered specifically for micropower, rail-to-rail input, and robust industrial operation - targeting applications where low power, accuracy, and environmental resilience are simultaneously critical.
FAQ
What is the operating temperature range for the TLC393IDRDL?
The TLC393IDRDL is characterized for operation from −40°C to +85°C, meeting industrial-grade requirements. This range is explicitly specified in the datasheet's recommended operating conditions and electrical characteristics tables for the 'I' suffix variant, ensuring guaranteed performance including input offset voltage ≤7 mV and supply current ≤65 µA across the full span.
Does the TLC393IDRDL require external pull-up resistors on its outputs?
Yes, the TLC393IDRDL features open-drain CMOS outputs (OUT1 and OUT2), which require external pull-up resistors to define the high logic level. The datasheet specifies output voltage range up to 16 V, allowing pull-ups to any compatible supply rail - a key advantage for mixed-voltage system interfacing and wired-OR configurations.
How does the LinCMOS™ process benefit the TLC393IDRDL compared to standard CMOS comparators?
The LinCMOS™ process used in the TLC393IDRDL provides extremely stable input offset voltage under differential input stress, ultra-low input bias current (<1 pA at 25°C), and high input impedance (>1012 Ω). These traits enable accurate DC comparisons in high-impedance sensor circuits - unlike standard CMOS comparators, which often exhibit significant offset drift and leakage-induced errors.
Can the TLC393IDRDL operate from a 3.3 V supply?
Yes, the TLC393IDRDL supports supply voltages from 3 V to 16 V, including 3.3 V nominal systems. At 3.3 V, its common-mode input range is 0 V to 1.8 V, and low-level output voltage remains ≤650 mV at 85°C with 6 mA sink current - ensuring clean logic transitions when interfacing with 3.3 V microcontrollers.
What is the maximum load current the TLC393IDRDL outputs can sink?
Each output of the TLC393IDRDL is rated to sink up to 20 mA continuously, as specified in the Absolute Maximum Ratings table. This allows direct driving of LEDs, small relays, or logic inputs with appropriate pull-up sizing - though thermal limits (e.g., 464 mW max power dissipation in SOIC-8 at 70°C) must be observed under sustained high-current conditions.
TLC393IDRDL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Open-Drain, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 3V ~ 16V
- :
- 5mV @ 10V
- Voltage - Input Offset (Max):
- 5pA (Typ)
- Current - Input Bias (Max):
- 20mA @ 5V
- Current - Output (Typ):
- 40µA
- Current - Quiescent (Max):
- 84dB CMRR, 85dB PSRR
- CMRR, PSRR (Typ):
- 4.5µs (Typ)
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C (TA)
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
TLC393IDRDL FAQ
1.How can I place an order for TLC393IDRDL through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC393IDRDL 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 TLC393IDRDL reliable?
The price and inventory of TLC393IDRDL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC393IDRDL is usually 5 days.
3.What payment methods are accepted for TLC393IDRDL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC393IDRDL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC393IDRDL?
TLC393IDRDL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC393IDRDL 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 TLC393IDRDL?
For technical support, including TLC393IDRDL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC393IDRDL requirements.
6.How does Aetrix verify that TLC393IDRDL is sourced from the original manufacturer or authorized distributors?
All TLC393IDRDL 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 TLC393IDRDL meets industry standards.
7.What is the process for return or replacement of TLC393IDRDL?
All TLC393IDRDL units undergo pre-shipment inspection (PSI). If there is an issue with TLC393IDRDL, 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 TLC393IDRDL part is unused and in its original packaging.
Return procedure for TLC393IDRDL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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