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Texas Instruments TLC393IDR
- Part No.:
- TLC393IDR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC393IDR.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:16,313
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Product details
Overview
TLC393IDR 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.
For engineers reviewing the TLC393IDR datasheet, TLC393IDR pinout, TLC393IDR application, or TLC393IDR equivalent, this page provides verified functional identity, validated industrial-temperature performance specs, confirmed SOIC-8 package mapping, and real-world design context for low-power analog monitoring circuits.
Technical Context
The TLC393IDR 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 even under differential input stress. Its open-drain output stage requires an external pull-up resistor and supports interfacing to TTL, CMOS, or mixed-voltage logic loads.
It operates across −40°C to +85°C with guaranteed common-mode input range of 0 V to VDD − 1.5 V and 84 dB minimum common-mode rejection ratio (CMMR) over temperature. The device integrates on-chip ESD protection rated to 2000 V per MIL-STD-883C Method 3015.2.
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 | 22–65 µA (both comparators, −40°C to 85°C) - enables multi-year operation on coin-cell batteries. |
| Input Offset Voltage | ≤7 mV (−40°C to 85°C) - ensures reliable 10-mV-level threshold discrimination in noisy environments. |
| Propagation Delay (tPLH) | 2.5 µs typ @ 5-mV overdrive, VDD = 5 V - balances speed and power for medium-frequency event detection. |
| Output Type | Open-drain CMOS - allows flexible level-shifting, wired-OR logic, and direct interface to microcontroller interrupt pins. |
| Input Bias Current | 0.6 nA max @ 85°C - preserves accuracy in high-impedance sensor divider networks (e.g., thermistors, photodiodes). |
| Common-Mode Rejection | 84 dB min - rejects supply ripple and ground noise when sensing signals referenced to noisy rails. |
Pinout & Package
Package: SOIC-8 (D package), tape-and-reel (2500 pcs/reel), RoHS-compliant, NIPDAU lead finish, MSL Level-1.
| 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 common-mode range as IN1−. |
| 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; tolerant to 18 V absolute max. |
| 6 | OUT2 | Open-drain output of Comparator 2 - independently controllable; shares no internal nodes with OUT1. |
| 7 | IN2− | Inverting input of Comparator 2 - electrically isolated from IN1−; identical specs. |
| 8 | IN2+ | Non-inverting input of Comparator 2 - supports independent dual-threshold configurations. |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ Process Technology | Delivers <1 pA input bias current at 25°C and stable offset voltage under differential stress - critical for high-Z sensor front-ends. |
| Dual Independent Comparators | Enables simultaneous monitoring of two thresholds (e.g., overvoltage/undervoltage) without cross-talk or shared timing paths. |
| Single-Supply Operation | Operates from 3 V to 16 V with rail-to-rail input capability - eliminates need for negative supplies or level-shifters in portable systems. |
| On-Chip ESD Protection | Withstands 2000 V HBM - reduces external protection components and improves board-level robustness in handling-sensitive environments. |
| Industrial Temperature Range | Specified from −40°C to +85°C - qualified for deployment in motor controls, PLC I/O modules, and outdoor instrumentation. |
Applications
| Battery Voltage Monitor | Motor Overcurrent Detection |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage during charge/discharge cycles in portable medical devices. IC Role / Device Role / Timing Role: Dual comparator configures hysteresis-based UVLO and OVLO protection with independent trip points. Use Value: 22 µA quiescent current extends standby life; 7 mV offset ensures accurate 3.0 V/4.2 V thresholds without calibration. |
Use Scenario: Detecting excessive current in brushed DC motor drivers via shunt resistor voltage drop. IC Role / Device Role / Timing Role: One comparator compares amplified shunt voltage against fixed reference; second enables fault latching. Use Value: 2.5 µs response time captures transient overloads before MOSFET thermal failure; open-drain output drives latch IC directly. |
| Two-Phase Clock Generator | Enhanced Power Supervisor |
|
Use Scenario: Generating non-overlapping gate drive signals for half-bridge inverters in micropower SMPS. IC Role / Device Role / Timing Role: Cross-coupled comparators form relaxation oscillator with precise dead-time control. Use Value: LinCMOS™ input stability prevents timing jitter from supply ripple; dual outputs eliminate external logic gates. |
Use Scenario: Providing early power-fail warning and reset assertion for microcontrollers in industrial controllers. IC Role / Device Role / Timing Role: One comparator monitors 5 V rail; second monitors 12 V rail or backup supply. Use Value: 84 dB CMMR rejects switching noise on shared PCB ground; open-drain outputs interface directly to µP reset/interrupt pins. |
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), no LinCMOS™ - higher noise, lower input Z. | Suitable for cost-sensitive, non-battery applications where speed >1 µs is unnecessary. | Select LM393DR only if legacy compatibility or extreme cost sensitivity outweighs micropower needs. |
| TLC3702CDR | Push-pull outputs (no pull-up required), faster tPLH (1.5 µs), but 2× higher IDD (45 µA typ). | Better for driving capacitive loads or logic inputs directly; less suitable for wired-OR bus topologies. | Choose TLC3702CDR when output drive strength or elimination of external resistors is prioritized over lowest power. |
Compared with LM393DR and TLC3702CDR, the TLC393IDR uniquely combines sub-100 µW operation, industrial temperature rating, and open-drain flexibility - making it optimal for long-life, noise-immune, multi-rail monitoring in constrained environments.
Availability
TLC393IDR is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial sensor nodes, and embedded power supervision requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC393IDR 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 digital signal technologies with decades of comparator innovation.
The TLC393IDR belongs to TI's LinCMOS™ micropower comparator family, engineered specifically for ultra-low-power, high-precision threshold detection in portable, industrial, and automotive systems where supply headroom and battery life are critical.
FAQ
What is the maximum operating temperature range for the TLC393IDR?
The TLC393IDR is characterized for operation from −40°C to +85°C, meeting industrial temperature requirements. This range is explicitly defined in the "recommended operating conditions" table for the TLC393I grade, and the "IDR" suffix confirms the SOIC-8 packaging of the industrial-grade variant. The device maintains all key specifications-including input offset voltage ≤7 mV and supply current ≤65 µA-across this full range.
Does the TLC393IDR require external pull-up resistors on its outputs?
Yes, the TLC393IDR features open-drain CMOS outputs (OUT1 and OUT2), which necessitate external pull-up resistors to VDD or another logic rail. This architecture enables wired-OR functionality, level translation, and direct interface to microcontroller interrupt pins. Typical pull-up values range from 2.2 kΩ to 10 kΩ depending on speed and load capacitance requirements.
Can the TLC393IDR operate from a 3-V supply while maintaining full specification?
Yes, the TLC393IDR is fully specified down to 3 V per its recommended operating conditions. At VDD = 3 V, it retains guaranteed performance including input common-mode range (0 V to 1.5 V), 7 mV max input offset voltage, and functional open-drain outputs capable of sinking 20 mA - making it suitable for single-cell Li-ion or alkaline-powered systems.
How does the LinCMOS™ process benefit the TLC393IDR in precision applications?
The LinCMOS™ process gives the TLC393IDR ultra-low input bias current (5 pA typ at 25°C), high input impedance (>1012 Ω), and exceptional input offset voltage stability-even under differential input stress. These traits preserve accuracy in high-impedance sensor interfaces (e.g., thermistor bridges or photodiode amplifiers) where leakage currents would otherwise dominate error budgets.
Is the TLC393IDR pin-compatible with the LM393 series?
No, the TLC393IDR is not pin-compatible with standard LM393 variants. While both are dual comparators in SOIC-8 packages, the TLC393IDR uses a different pinout: pins 1–4 are OUT1, IN1−, IN1+, GND; pins 5–8 are VDD, OUT2, IN2−, IN2+. In contrast, the LM393DR assigns OUT1, IN1−, IN1+, VDD to pins 1–4. Direct substitution requires PCB layout revision.
TLC393IDR 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):
- 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
TLC393IDR FAQ
1.How can I place an order for TLC393IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC393IDR 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 TLC393IDR reliable?
The price and inventory of TLC393IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC393IDR is usually 5 days.
3.What payment methods are accepted for TLC393IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC393IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC393IDR?
TLC393IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC393IDR 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 TLC393IDR?
For technical support, including TLC393IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC393IDR requirements.
6.How does Aetrix verify that TLC393IDR is sourced from the original manufacturer or authorized distributors?
All TLC393IDR 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 TLC393IDR meets industry standards.
7.What is the process for return or replacement of TLC393IDR?
All TLC393IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC393IDR, 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 TLC393IDR part is unused and in its original packaging.
Return procedure for TLC393IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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