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Texas Instruments TLC393ID
- Part No.:
- TLC393ID
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC393ID.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:829
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Product details
Overview
TLC393ID 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 maximum input offset voltage across −40°C to 85°C - enabling precision threshold detection in battery-powered industrial sensors and power-supply supervisors.
For engineers reviewing the TLC393ID datasheet, TLC393ID pinout, TLC393ID application, or TLC393ID equivalent, key selection considerations include its industrial-temperature-rated LinCMOS™ architecture, rail-to-rail input common-mode range (0 V to VDD − 1.5 V), low 22–65 µA total supply current, and compatibility with pull-up loads up to 16 V.
Technical Context
The TLC393ID implements two independent comparators using Texas Instruments' LinCMOS™ process, delivering high input impedance (>1012 Ω), ultra-low input bias current (5 pA typ at 25°C), and stable input offset voltage (≤7 mV over −40°C to 85°C). Its open-drain output stage requires external pull-up and supports mixed-voltage interfacing up to 16 V.
It operates across a wide supply range (3 V to 16 V) with guaranteed performance at VDD = 5 V, including 84 dB common-mode rejection ratio (CMMR) and 85 dB supply-voltage rejection ratio (kSVR) over temperature - critical for noisy industrial environments where reference stability and noise immunity are essential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 16 V - supports 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 accuracy in precision voltage monitoring applications. |
| Propagation Delay (tPLH) | 2.5 µs typ at 5 V with 5-mV overdrive - enables fast response in motor control feedback and overvoltage detection. |
| Supply Current (both comparators) | 22–65 µA - enables multi-year battery life in portable instrumentation and remote sensor nodes. |
| Input Bias Current (typ) | 5 pA at 25°C - minimizes loading error on high-impedance sources like thermistors or photodiodes. |
| Common-Mode Input Range | 0 V to VDD − 1.5 V - allows direct sensing of signals near ground or rail without attenuation networks. |
| Output Type | Open-drain CMOS - permits wired-OR logic, flexible pull-up voltage selection (up to 16 V), and I²C-compatible bus driving. |
Pinout & Package
Package: SOIC-8 (D package), surface-mount, 8-pin small-outline integrated circuit with standard 1.27 mm pitch.
| 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 voltages from −0.2 V to VDD − 1.5 V. |
| 3 | IN1+ | Non-inverting input of Comparator 1 - same voltage range as IN1−. |
| 4 | GND | Ground reference for both comparators and internal circuitry - must be low-impedance. |
| 5 | VDD | Positive supply rail - powers both comparators; decoupling capacitor (0.1 µF) required near pin. |
| 6 | OUT2 | Open-drain output of Comparator 2 - electrically isolated from OUT1; shares same VDD/GND. |
| 7 | IN2− | Inverting input of Comparator 2 - fully independent of Comparator 1 inputs. |
| 8 | IN2+ | Non-inverting input of Comparator 2 - supports differential or single-ended sensing configurations. |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ Process Technology | Delivers <1 nA input bias current and stable offset voltage under differential stress - eliminates drift-induced false triggers in long-duration monitoring. |
| Dual Independent Comparators | Enables simultaneous monitoring of two thresholds (e.g., overvoltage + undervoltage) without cross-coupling or shared timing delays. |
| Single-Supply Operation | Eliminates need for split supplies in portable or automotive systems - simplifies PCB layout and reduces BOM count. |
| On-Chip ESD Protection | Withstands 2000 V per MIL-STD-883C Method 3015.2 - reduces external protection components in industrial control I/O modules. |
| Wide Temperature Range | Rated for −40°C to +85°C - qualified for deployment in factory automation, HVAC controllers, and outdoor metering equipment. |
Applications
| Battery Voltage Monitor | Industrial Power-Supply Supervisor |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage during charge/discharge cycles in handheld test equipment. IC Role / Device Role / Timing Role: Dual comparator detects upper (4.2 V) and lower (3.0 V) thresholds to trigger charge enable/disable and low-battery warning. Use Value: 110 µW quiescent power extends runtime; rail-to-rail input range allows direct connection to cell without resistor dividers. |
Use Scenario: Detecting brown-out and overvoltage conditions on 5 V and 12 V rails in PLC backplanes. IC Role / Device Role / Timing Role: One comparator monitors 5 V rail against 2.5 V reference; second monitors 12 V rail against scaled-down reference. Use Value: 7 mV max VIO ensures accurate trip points; open-drain outputs interface directly with µP reset/interrupt lines. |
| PWM Motor Speed Controller | Two-Phase Clock Generator |
|
Use Scenario: Generating variable-duty-cycle PWM signals for DC brush motor control in automated valves. IC Role / Device Role / Timing Role: Comparator compares sawtooth oscillator waveform against adjustable potentiometer voltage to set duty cycle. Use Value: 2.5 µs tPLH supports PWM frequencies >100 kHz; low supply current minimizes heat in enclosed actuators. |
Use Scenario: Generating non-overlapping clock phases for half-bridge gate drivers in DC-DC converters. IC Role / Device Role / Timing Role: Two comparators configured as hysteresis oscillators produce complementary 180°-shifted square waves with programmable dead time. Use Value: Independent inputs/outputs prevent phase skew; LinCMOS™ stability maintains precise timing over temperature. |
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 VIO (7 mV max only at 25°C; 10 mV over −40°C to 85°C), no LinCMOS™ input stability. | Limited to commercial-temperature designs; less suitable for precision battery monitoring due to higher drift. | Select LM393DR only when cost is primary and temperature stability is secondary. |
| TLC3702CDR | Push-pull outputs (no external pull-up needed), slightly faster (1.5 µs tPLH), but higher power (140 µW typ). | Preferred for logic-level interfacing where open-drain flexibility is unnecessary and board space is constrained. | Choose TLC3702CDR when driving CMOS inputs directly and minimizing external components is critical. |
Compared with LM393DR and TLC3702CDR, the TLC393ID uniquely balances ultra-low power (22 µA), industrial-temperature stability (7 mV VIO), and open-drain versatility - making it optimal for long-life, mixed-voltage, and noise-immune industrial sensing.
Availability
TLC393ID is available at Aetrix Electronics and suitable for industrial power-supply supervision, battery management systems, and motor control circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC393ID 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 signal conditioning and low-power design.
The TLC393ID belongs to TI's LinCMOS™ comparator family, engineered specifically for micropower, high-input-impedance, and temperature-stable voltage comparison in industrial and automotive systems.
FAQ
What is the operating temperature range of the TLC393ID?
The TLC393ID is characterized for operation from −40°C to +85°C, meeting industrial-grade environmental requirements. This range is explicitly specified in the "recommended operating conditions" table of the official datasheet (SLCS115D), and all electrical characteristics - including input offset voltage (≤7 mV) and supply current (≤65 µA) - are guaranteed across this full span.
Does the TLC393ID require external pull-up resistors on its outputs?
Yes, the TLC393ID features open-drain CMOS outputs (OUT1 and OUT2), which inherently require external pull-up resistors to define the high logic state. The datasheet specifies that each output can sink up to 20 mA, and the pull-up voltage may be as high as 16 V - enabling interoperability with higher-voltage logic families or microcontroller interrupt pins.
How does the LinCMOS™ process benefit the TLC393ID in real-world designs?
The LinCMOS™ process gives the TLC393ID ultra-low input bias current (5 pA typ), extremely stable input offset voltage (≤7 mV over −40°C to 85°C), and high input impedance (>1012 Ω). These traits reduce measurement errors in high-impedance sensor interfaces (e.g., pH probes or RTDs) and eliminate thermal drift-induced false triggering in long-duration supervisory functions.
Can the TLC393ID operate from a 3.3 V supply?
Yes, the TLC393ID supports supply voltages from 3 V to 16 V, including 3.3 V nominal systems. At VDD = 3.3 V, the common-mode input range remains functional (0 V to 1.8 V), and key specs - such as 22–65 µA supply current and open-drain output compatibility - remain valid, making it suitable for modern low-voltage embedded platforms.
What is the maximum load current the TLC393ID outputs can sink?
Each output of the TLC393ID is rated to sink up to 20 mA continuously, as confirmed in the "absolute maximum ratings" section of the datasheet. This capability allows direct driving of LEDs, small relays, or logic inputs with appropriate pull-up sizing - provided power dissipation limits (e.g., 464 mW at 70°C for SOIC-8) are observed.
TLC393ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- LinCMOS™
- Packaging:
- Bulk
- 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):
- 65µA
- Current - Quiescent (Max):
- 84dB CMRR
- CMRR, PSRR (Typ):
- 4.5µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
TLC393ID FAQ
1.How can I place an order for TLC393ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC393ID 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 TLC393ID reliable?
The price and inventory of TLC393ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC393ID is usually 5 days.
3.What payment methods are accepted for TLC393ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC393ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC393ID?
TLC393ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC393ID 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 TLC393ID?
For technical support, including TLC393ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC393ID requirements.
6.How does Aetrix verify that TLC393ID is sourced from the original manufacturer or authorized distributors?
All TLC393ID 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 TLC393ID meets industry standards.
7.What is the process for return or replacement of TLC393ID?
All TLC393ID units undergo pre-shipment inspection (PSI). If there is an issue with TLC393ID, 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 TLC393ID part is unused and in its original packaging.
Return procedure for TLC393ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC393ID Tags
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