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Texas Instruments TLC352IP
- Part No.:
- TLC352IP
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC352IP.pdf
- Description:
- IC COMPARATOR 2 DIFF 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,982
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Product details
Overview
TLC352IP from Texas Instruments is a dual CMOS voltage comparator with open-drain outputs, designed for low-power industrial sensing and threshold-detection circuits operating from 2.7V to 16V supply. It delivers 5 mV max input offset voltage at 25°C, 5 pA typical input bias current, and 200 ns typical propagation delay at 5V, enabling precision battery-powered monitoring in motor control feedback and power-supply sequencing.
For engineers reviewing the TLC352IP datasheet, TLC352IP pinout, TLC352IP application, or TLC352IP equivalent, key selection criteria include its −40°C to 85°C industrial temperature rating, PDIP-8 package compatibility with through-hole prototyping, open-drain output flexibility for wired-AND logic and level translation, and direct functional alignment with LM393-based designs requiring lower input bias current and wider supply range.
Technical Context
The TLC352IP integrates two independent high-impedance (10¹² Ω typical) comparators on a single CMOS die, each featuring rail-to-rail common-mode input range down to ground and ESD protection rated at 2000 V. Its input stage avoids phase inversion across the full specified input voltage range, supporting stable operation in slow-moving analog signals like thermistor or potentiometer interfaces.
Each comparator output is an n-channel open-drain structure capable of sinking up to 16 mA at 5V, with VOL ≤ 400 mV under 4 mA load. The device draws only 150 µA typical total supply current at 5V, making it suitable for always-on monitoring nodes where quiescent power must remain below 1 mW.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 16V - supports single-supply operation from Li-ion batteries (3.0–4.2V) up to 12V industrial rails without external regulation |
| Input Offset Voltage (max) | 5 mV at 25°C - ensures reliable detection of ≥10 mV signal differentials in sensor-comparator interfaces |
| Input Bias Current (typ) | 5 pA - enables direct connection to high-impedance sources (e.g., pH electrodes, photodiodes) without loading error |
| Propagation Delay (typ) | 200 ns at 5V, 100 mV overdrive - sufficient for sub-500 kHz window-comparator timing in power-supply fault detection |
| Operating Temperature | −40°C to +85°C - qualified for industrial automation, motor drives, and outdoor embedded controls |
| Output Configuration | Open-drain (n-channel) - allows pull-up to any voltage ≤16V, enabling logic-level translation between 3.3V MCU and 5V/12V subsystems |
| ESD Rating | 2000 V HBM - meets basic handling robustness requirements for assembly in non-ESD-controlled environments |
Pinout & Package
Package: PDIP-8 (Plastic Dual In-line Package), 0.300-inch body width, through-hole mountable, RoHS-compliant NIPDAU lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Open-drain output of Comparator A - requires external pull-up resistor; sinks current when IN+ < IN− |
| 2 | IN− A | Inverting input of Comparator A - accepts common-mode voltages from GND to VDD − 1.5V |
| 3 | IN+ A | Non-inverting input of Comparator A - high-impedance node (10¹² Ω) for precision reference or sensor interface |
| 4 | GND | Ground reference for both comparators and supply return - must be low-impedance path to minimize noise coupling |
| 5 | IN+ B | Non-inverting input of Comparator B - electrically isolated from Channel A; same high-Z behavior |
| 6 | IN− B | Inverting input of Comparator B - supports independent threshold setting per channel |
| 7 | OUT B | Open-drain output of Comparator B - can be wire-OR'd with OUT A or other open-drain outputs |
| 8 | VDD | Positive supply rail - powers both comparators; no internal regulation; accepts 2.7V–16V DC |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 5 pA typical - preserves signal integrity in megohm-range sensor networks without calibration drift |
| Single-supply operation from 2.7V | Enables direct integration into 3.3V or coin-cell-powered systems without boost converters |
| Common-mode input range includes ground | Allows direct sensing of 0V-referenced signals (e.g., current-sense shunts, thermocouples) without level-shifting circuitry |
| Pin-compatible with LM393 | Permits drop-in replacement in legacy designs while improving input impedance and reducing supply current by 3× |
| ESD-protected inputs (2000 V HBM) | Reduces need for external transient suppression in board-level ESD testing per IEC 61000-4-2 Level 2 |
Applications
| Motor Control Feedback | Power-Supply Sequencing |
|---|---|
|
Use Scenario: Monitoring back-EMF zero-crossing in BLDC motor commutation using resistive divider networks. IC Role / Device Role / Timing Role: Dual comparator detects rising/falling edges of filtered back-EMF to trigger MOSFET gate drivers with precise timing margins. Use Value: 200 ns propagation delay and 5 mV offset ensure ≤1° electrical angle timing error at 10 krpm, improving torque ripple performance. |
Use Scenario: Enforcing strict power-up order across 3.3V, 5V, and 12V rails in FPGA-based systems. IC Role / Device Role / Timing Role: Each comparator independently monitors rail voltage against precision references to assert enable signals only after valid thresholds are met. Use Value: Open-drain outputs allow shared pull-up to FPGA I/O voltage, eliminating level-shifters while maintaining independent trip points per rail. |
| Battery Voltage Monitor | Industrial Sensor Interface |
|
Use Scenario: Detecting low-battery condition (<3.0V) and over-voltage warning (>4.3V) in portable test equipment. IC Role / Device Role / Timing Role: TLC352IP compares battery voltage against two stable references to drive LED indicators and MCU interrupt lines. Use Value: 150 µA total supply current extends runtime in always-on monitoring mode; 5 pA input bias prevents loading of high-resistance voltage dividers. |
Use Scenario: Converting analog outputs from RTD or strain-gauge bridges into digital status flags for PLC analog input modules. IC Role / Device Role / Timing Role: Comparator channels detect bridge imbalance beyond ±10 mV thresholds, generating fault or alarm signals. Use Value: Rail-to-rail input range accommodates unbuffered bridge outputs referenced to system GND; 10¹² Ω input impedance eliminates gain error from sensor source impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM393DR | Higher input bias current (25 nA), wider offset (7 mV max), no guaranteed operation below 2.7V | Lower cost but unsuitable for ultra-high-Z sensors or sub-3V battery systems | Select LM393DR only when budget constraints outweigh precision and low-voltage needs |
| TLC372CP | Same CMOS architecture, identical pinout, but rated only for 0°C to 70°C commercial range | Lacks industrial temperature qualification; not recommended for factory-floor or outdoor deployments | Choose TLC372CP only for lab-grade or consumer-grade products with controlled ambient conditions |
Compared with LM393DR and TLC372CP, the TLC352IP uniquely combines industrial temperature range, picoampere input bias, and guaranteed 2.7V operation-making it the only option among the three qualified for battery-powered industrial edge sensors requiring long-term stability and wide supply tolerance.
Availability
TLC352IP is available at Aetrix Electronics and suitable for motor control feedback, power-supply sequencing, and battery voltage monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC352IP 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 power management ICs.
The TLC352IP belongs to TI's precision comparator product line, engineered specifically for industrial and automotive applications demanding low power, high input impedance, and robust operation across harsh thermal environments.
FAQ
What is the maximum supply voltage for the TLC352IP?
The TLC352IP supports a maximum supply voltage of 16 V, as specified in the Recommended Operating Conditions table. Absolute maximum rating is 18 V, but sustained operation above 16 V may compromise reliability or parametric performance. Designers should maintain VDD ≤16 V for continuous use in industrial applications where thermal margin is critical.
Does the TLC352IP require external pull-up resistors on its outputs?
Yes, the TLC352IP features open-drain outputs that require external pull-up resistors to define the high logic state. TI recommends selecting pull-up values between 10 kΩ and 1 MΩ depending on rise-time and power trade-offs; for example, a 10 kΩ resistor yields ~100 ns rise time with 15 pF load, while a 100 kΩ resistor reduces current draw but increases rise time proportionally.
Can the TLC352IP operate from a single 3.3V supply?
Yes, the TLC352IP is fully specified for operation from 2.7V to 16V single supply. At 3.3V, it maintains 5 mV max input offset voltage, 200 ns typical propagation delay, and 150 µA typical supply current - making it ideal for low-voltage embedded systems such as portable instrumentation and IoT sensor nodes where power efficiency is essential.
Is the TLC352IP pin-compatible with the LM393?
Yes, the TLC352IP shares identical pin configuration and function mapping with the LM393 in PDIP-8 packaging. This allows direct PCB replacement in existing LM393 designs, delivering improved input bias current (5 pA vs. 25 nA), lower supply current (150 µA vs. 500 µA), and extended supply range (2.7V–16V vs. 2V–36V with degraded specs below 5V).
What is the input common-mode voltage range of the TLC352IP?
The TLC352IP supports a common-mode input voltage range from GND to VDD − 1.5 V over the full −40°C to +85°C temperature range. At 5V supply, this translates to 0 V to 3.5 V; at 12V, it extends to 0 V to 10.5 V. This rail-to-ground capability enables direct interfacing with ground-referenced sensors without level-shifting circuitry.
TLC352IP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Series:
- LinCMOS™
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Differential
- Number of Elements:
- 2
- Output Type:
- CMOS, MOS, Open-Drain, TTL
- Voltage - Supply, Single/Dual (±):
- 1.4V ~ 16V, ±0.7V ~ 8V
- :
- 5mV @ 5V
- Voltage - Input Offset (Max):
- 5pA @ 5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 400µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Through Hole
- :
- 8-PDIP
TLC352IP FAQ
1.How can I place an order for TLC352IP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC352IP 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 TLC352IP reliable?
The price and inventory of TLC352IP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC352IP is usually 5 days.
3.What payment methods are accepted for TLC352IP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC352IP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC352IP?
TLC352IP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC352IP 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 TLC352IP?
For technical support, including TLC352IP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC352IP requirements.
6.How does Aetrix verify that TLC352IP is sourced from the original manufacturer or authorized distributors?
All TLC352IP 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 TLC352IP meets industry standards.
7.What is the process for return or replacement of TLC352IP?
All TLC352IP units undergo pre-shipment inspection (PSI). If there is an issue with TLC352IP, 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 TLC352IP part is unused and in its original packaging.
Return procedure for TLC352IP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC352IP Tags
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