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Texas Instruments TLC393IDG4
- Part No.:
- TLC393IDG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC393IDG4.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,035
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Product details
Overview
TLC393IDG4 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 at 25°C - enabling precision threshold detection in battery-powered sensor interfaces and power supervision circuits.
For engineers reviewing the TLC393IDG4 datasheet, TLC393IDG4 pinout, TLC393IDG4 application, or TLC393IDG4 equivalent, key selection considerations include its industrial temperature range (−40°C to +85°C), LinCMOS™ process-enabled high input impedance (>1012 Ω), ultra-low input bias current (5 pA typ at 25°C), and compatibility with pull-up loads up to 16 V.
Technical Context
The TLC393IDG4 integrates two independent comparators on a single die using Texas Instruments' LinCMOS™ process, which combines standard CMOS low-power advantages with enhanced analog performance - including stable input offset voltage under differential stress and high common-mode rejection (84 dB min). Its open-drain output stage requires external pull-up resistors and supports mixed-voltage interfacing.
It operates across a wide supply range (3–16 V) with rail-to-rail input common-mode range (0 V to VDD − 1.5 V) and specified performance over −40°C to +85°C. Input offset voltage remains ≤7 mV across the full industrial temperature range, and supply current stays ≤65 µA (both comparators, no load).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 16 V - supports direct connection to Li-ion, 5-V, and 12-V rails without regulation. |
| Quiescent Supply Current | 22–40 µA typ (25°C), ≤65 µA max (−40°C to +85°C) - enables multi-year battery life in always-on monitoring. |
| Input Offset Voltage | ≤7 mV max (−40°C to +85°C) - ensures reliable switching at small signal differentials (e.g., thermistor or RTD thresholds). |
| Propagation Delay | 2.5 µs typ (tPLH, 5-mV overdrive, VDD = 5 V, TA = 25°C) - suitable for medium-speed control loops like PWM motor enable. |
| Input Bias Current | 5 pA typ (25°C), ≤2 nA max (85°C) - minimizes error in high-impedance sensor networks (e.g., pH probes, photodiode amps). |
| Common-Mode Rejection | 84 dB min - maintains accuracy despite supply ripple or ground bounce in noisy industrial environments. |
| Output Type | Open-drain CMOS - allows level-shifting, wired-OR logic, and interface to 3.3-V, 5-V, or 12-V digital inputs. |
Pinout & Package
Package: SOIC-8 (D package), surface-mount, 150-mil width, 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 ground reference - must be low-impedance and decoupled with 0.1-µF capacitor. |
| 5 | VDD | Positive supply rail - powers both comparators and internal ESD protection. |
| 6 | OUT2 | Open-drain output of Comparator 2 - electrically isolated from OUT1; shares same drive capability. |
| 7 | IN2− | Inverting input of Comparator 2 - independent of IN1−; supports separate sensing paths. |
| 8 | IN2+ | Non-inverting input of Comparator 2 - enables dual-threshold or window-comparator configurations. |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ Process Technology | Delivers <10 pA input bias current and stable offset voltage even under ±18 V differential input stress - critical for high-precision sensor front-ends. |
| Dual Independent Comparators | Enables compact dual-threshold detection (e.g., overvoltage + undervoltage supervision) without cross-talk or shared timing constraints. |
| 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 hardening. |
| Wide Temperature Range | Specified from −40°C to +85°C - qualified for industrial automation, automotive body control, and outdoor metering applications. |
| Single-Supply Operation | Eliminates need for negative rail or level-shifters in systems powered by unregulated DC sources (e.g., solar chargers, 12-V vehicle buses). |
Applications
| Battery Voltage Monitor | Motor Overcurrent Detection |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage during charge/discharge to trigger cutoff at 4.2 V (full) and 2.8 V (low). IC Role / Device Role / Timing Role: Dual comparator configured as window detector - one channel compares against upper threshold, the other against lower threshold. Use Value: Ultra-low 65 µA max supply current extends system standby time; open-drain outputs interface directly to MCU GPIO with 3.3-V logic. |
Use Scenario: Detecting excessive current in a brushed DC motor driver by comparing shunt voltage against programmable trip point. IC Role / Device Role / Timing Role: Single comparator (TLC393IDG4 Channel 1) compares amplified shunt voltage to reference; output drives fault latch. Use Value: 2.5 µs response ensures fast shutdown before MOSFET thermal damage; rail-to-rail input accommodates low-side shunt placement. |
| Enhanced Power Supervisor | Two-Phase Clock Generator |
|
Use Scenario: Providing early power-fail warning and reset assertion for microcontrollers during brownout conditions on 5-V and 12-V rails. IC Role / Device Role / Timing Role: Two comparators independently monitor each rail - one triggers interrupt, the other asserts hardware reset via TL7705A. Use Value: 5 mV offset tolerance ensures accurate trip points across temperature; industrial-grade spec guarantees reliability in factory PLCs. |
Use Scenario: Generating non-overlapping clock signals for half-bridge gate drivers in DC-DC converters or motor inverters. IC Role / Device Role / Timing Role: Both comparators used in relaxation oscillator topology with RC timing network and feedback cross-coupling. Use Value: LinCMOS™ stability minimizes duty-cycle drift over temperature; open-drain outputs allow direct pull-up to gate driver VDD. |
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 quiescent current (500 µA typ), wider offset (7 mV max), no LinCMOS™ - lower input impedance (~109 Ω) and higher bias current (25 nA). | Suitable for cost-sensitive, non-battery applications where speed >1 µs is not required and supply headroom is ample. | Choose LM393DR only if legacy design reuse or BOM consolidation outweighs power/precision needs. |
| TLC3702CDR | Push-pull outputs (no external pull-up needed), faster tPLH (1.5 µs typ), but higher supply current (120 µA typ) and narrower VDD range (3–16 V vs. TLC393's 3–16 V). | Better for driving capacitive loads directly or when output polarity inversion is undesirable (e.g., direct LED drive). | Select TLC3702CDR when push-pull output simplifies layout and power budget allows ~2× higher IDD. |
Compared with LM393DR and TLC3702CDR, the TLC393IDG4 uniquely balances micropower operation (≤65 µA), precision (≤7 mV offset), and industrial temperature rating - making it optimal for long-life, high-reliability embedded supervision where open-drain flexibility is acceptable.
Availability
TLC393IDG4 is available at Aetrix Electronics and suitable for industrial automation, battery management systems, and power supply supervision requiring stable component supply, extended temperature support, and long-term obsolescence mitigation.
Supply support for TLC393IDG4 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 ICs and industrial-grade components.
The TLC393IDG4 belongs to TI's LinCMOS™ comparator family, engineered specifically for low-power, high-accuracy voltage comparison in harsh environments - targeting applications where battery life, thermal stability, and noise immunity are critical.
FAQ
What is the maximum operating temperature range for the TLC393IDG4?
The TLC393IDG4 is characterized for operation from −40°C to +85°C, meeting industrial temperature requirements. This range is explicitly confirmed in the "recommended operating conditions" table for the TLC393I grade, and the "IDG4" suffix corresponds to the SOIC-8 package of the TLC393I variant. Performance parameters such as input offset voltage (≤7 mV) and supply current (≤65 µA) are guaranteed across this full range.
Does the TLC393IDG4 require external pull-up resistors on its outputs?
Yes, the TLC393IDG4 features open-drain CMOS outputs (OUT1 and OUT2), which means each output can only sink current and must be pulled up to a defined voltage rail via an external resistor. The datasheet specifies a maximum output voltage of 16 V, allowing pull-up to VDD or a separate logic rail - a key enabler for level translation and wired-OR bus configurations.
How does the LinCMOS™ process benefit the TLC393IDG4 compared to standard CMOS comparators?
The LinCMOS™ process used in the TLC393IDG4 delivers significantly lower input bias current (5 pA typ vs. ~25 nA in LM393), higher input impedance (>1012 Ω), and superior offset voltage stability under differential input stress. These traits reduce measurement error in high-impedance sensor interfaces and improve long-term reliability in precision threshold detection circuits.
Can the TLC393IDG4 operate from a 3.3-V supply?
Yes, the TLC393IDG4 supports supply voltages from 3 V to 16 V, fully including 3.3 V. At 3.3 V, its common-mode input range is 0 V to 1.8 V, and its low-level output voltage remains ≤650 mV (with 6 mA sink current), ensuring clean logic-low signaling to 3.3-V microcontrollers when paired with appropriate pull-up resistors.
Is the TLC393IDG4 pin-compatible with the LM393?
No - while functionally similar, the TLC393IDG4 and LM393 share the same SOIC-8 pinout (1:OUT1, 2:IN1−, 3:IN1+, 4:GND, 5:VDD, 6:OUT2, 7:IN2−, 8:IN2+), but the TLC393IDG4 is not a drop-in replacement due to differences in electrical behavior: lower supply current, tighter offset, and LinCMOS™ input structure. Layout reuse is possible, but circuit validation is required.
TLC393IDG4 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):
- 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
TLC393IDG4 FAQ
1.How can I place an order for TLC393IDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC393IDG4 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 TLC393IDG4 reliable?
The price and inventory of TLC393IDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC393IDG4 is usually 5 days.
3.What payment methods are accepted for TLC393IDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC393IDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC393IDG4?
TLC393IDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC393IDG4 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 TLC393IDG4?
For technical support, including TLC393IDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC393IDG4 requirements.
6.How does Aetrix verify that TLC393IDG4 is sourced from the original manufacturer or authorized distributors?
All TLC393IDG4 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 TLC393IDG4 meets industry standards.
7.What is the process for return or replacement of TLC393IDG4?
All TLC393IDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC393IDG4, 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 TLC393IDG4 part is unused and in its original packaging.
Return procedure for TLC393IDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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