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Texas Instruments TLC352CPWR
- Part No.:
- TLC352CPWR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC352CPWR.pdf
- Description:
- IC COMPARATOR 2 DIFF 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,950
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Product details
Overview
TLC352CPWR from Texas Instruments is a dual CMOS voltage comparator with open-drain outputs, designed for low-power, single- or dual-supply operation across 2.7V–18V. It delivers ultra-low supply current (150µA typical at 5V), 5pA typical input bias current, and 5mV max input offset voltage at 25°C - enabling precision threshold detection in battery-powered sensor interfaces and portable instrumentation.
For engineers reviewing the TLC352CPWR datasheet, TLC352CPWR pinout, TLC352CPWR application, or TLC352CPWR equivalent, this device supports TTL/MOS/CMOS-compatible wired-AND logic, operates down to 2.7V, features rail-to-rail common-mode input range including ground, and is pin-compatible with LM393 in SOIC-8 packaging.
Technical Context
The TLC352CPWR integrates two independent high-impedance (10¹²Ω typical) comparators fabricated in CMOS technology, each with ESD protection rated at 2000V. Its open-drain output stage allows external pull-up to voltages up to 16V, independent of VDD, supporting level translation and wired-logic configurations.
It supports operation over −40°C to 85°C (industrial grade), with guaranteed input offset voltage ≤5mV at 25°C and ≤7mV over full temperature range, and propagation delay of 100ns typical (100mV overdrive, 5V supply). Common-mode input range extends from ground to VDD−1.5V across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 18V - enables direct use in 3.3V, 5V, and 12V systems without level-shifting. |
| Input Bias Current | 5pA typical - preserves signal integrity when interfacing with high-impedance sources like photodiodes or RC timing networks. |
| Input Offset Voltage | ≤5mV at 25°C - ensures accurate switching thresholds in precision window or zero-crossing detection circuits. |
| Supply Current (per channel) | 75µA typical - supports multi-year battery life in always-on monitoring applications. |
| Propagation Delay | 100ns typical (100mV overdrive, 5V) - suitable for medium-speed event detection in motor control feedback or power sequencing. |
| Output Configuration | Open-drain N-channel - permits flexible pull-up to external logic rails and wired-AND bus implementation. |
| ESD Rating | 2000V HBM - provides robust handling margin during PCB assembly and field service. |
Pinout & Package
Package: TSSOP-8 (PW), 3.0mm × 4.4mm body, 0.65mm pitch, 1.2mm max height, RoHS-compliant NIPDAU lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Comparator A output | Open-drain N-channel sink - requires external pull-up; compatible with 0–16V logic levels. |
| 2 (IN− A) | Inverting input A | High-impedance node (10¹²Ω) - minimal loading on reference or sensor sources. |
| 3 (IN+ A) | Non-inverting input A | Accepts common-mode voltage from ground to VDD−1.5V - supports ground-referenced sensing. |
| 4 (GND) | Ground reference | Return path for both comparators and internal bias circuitry; must be low-impedance. |
| 5 (IN+ B) | Non-inverting input B | Independent high-Z input - enables dual-threshold or differential pair configurations. |
| 6 (IN− B) | Inverting input B | Matches IN− A electrical characteristics - supports matched hysteresis design across channels. |
| 7 (OUT B) | Comparator B output | Independent open-drain output - allows separate pull-up resistors or shared bus connection. |
| 8 (VDD) | Positive supply | Single-supply rail (2.7–18V); dual-supply operation supported if |VDD−VSS| ≥2.7V. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 5pA typical - eliminates significant error in high-resistance divider networks or capacitive sensor interfaces. |
| Rail-to-rail common-mode input | Includes ground and extends to VDD−1.5V - enables direct interface to 0V-referenced signals without level shifters. |
| Wide supply voltage range | 2.7V–18V - supports operation from single-cell Li-ion (3.0V) to industrial 12V/15V rails without regulation. |
| Open-drain output architecture | Allows logic-level translation and wired-AND bus topology - simplifies multi-comparator alarm aggregation. |
| Pin compatibility with LM393 | Same SOIC-8 and TSSOP-8 pinout - enables drop-in replacement in existing designs with improved performance. |
Applications
| Battery-Powered Sensor Interface | Power Supply Sequencing Monitor |
|---|---|
|
Use Scenario: Detecting low-battery condition in portable medical devices using a resistive divider off a 3.7V Li-ion cell. IC Role / Device Role / Timing Role: Dual comparator configured as window detector to trigger shutdown between 3.0V and 3.3V thresholds. Use Value: 150µA total supply current extends operational life; 5pA input bias avoids loading the high-R divider network. |
Use Scenario: Validating correct power-up order of 1.2V, 3.3V, and 5V rails in FPGA-based embedded systems. IC Role / Device Role / Timing Role: Each comparator monitors one rail against a precision reference; outputs wired-AND to generate global "POWER_OK" signal. Use Value: Open-drain outputs enable direct wired-AND without external logic; rail-to-rail inputs accept ground-referenced references. |
| Industrial Threshold Alarm System | Motor Overcurrent Protection |
|
Use Scenario: Monitoring analog temperature output from an RTD sensor in HVAC control panels. IC Role / Device Role / Timing Role: Comparator B compares sensor voltage to upper trip point; comparator A checks lower limit for fault detection. Use Value: 5mV max offset ensures ±25mV accuracy in 10-bit ADC-equivalent threshold resolution; −40°C to 85°C rating matches industrial environment. |
Use Scenario: Sensing shunt voltage in BLDC motor drive to interrupt PWM on overcurrent events. IC Role / Device Role / Timing Role: Fast-response comparator detects >100mV overdrive within 100ns, triggering gate driver disable via optocoupler interface. Use Value: 100ns propagation delay meets IEC 61800-5-1 response time requirements; 20mA sink capability drives opto-LED directly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM393DR | Bipolar process; higher supply current (500µA typical); 2mV typical offset but wider temp drift (±7mV max). | Limited to ≥5V operation; unsuitable for sub-3.3V battery systems due to 2V min supply. | Choose LM393DR only for cost-sensitive, non-battery, 5V+ designs where ultra-low power is not required. |
| TLC372CPWR | Same CMOS process; identical pinout and package; 10x lower supply current (15µA typical) but slower (3µs delay). | Optimized for micro-power sleep-mode monitoring rather than medium-speed event detection. | Select TLC372CPWR when <50µA total supply budget is mandatory and response time >1µs is acceptable. |
Compared with LM393DR and TLC372CPWR, the TLC352CPWR uniquely balances low power (150µA), speed (100ns), and wide supply range (2.7–18V), making it optimal for industrial battery-backed systems requiring both precision and responsiveness.
Availability
TLC352CPWR is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial power monitoring, and motor control safety circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC352CPWR 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 reliability.
The TLC352 belongs to TI's precision comparator product line, engineered for applications demanding low power, high input impedance, and robust operation across industrial temperature ranges without sacrificing speed or accuracy.
FAQ
What is the maximum supply voltage for the TLC352CPWR?
The TLC352CPWR supports a maximum supply voltage of 18V, as specified in its Absolute Maximum Ratings. Operation above this level risks permanent damage. The recommended operating range is 2.7V to 16V per the Electrical Characteristics table, ensuring reliable performance across temperature and load conditions while maintaining parametric guarantees for the TLC352CPWR.
Can the TLC352CPWR operate from a single 3.3V supply?
Yes, the TLC352CPWR is fully specified for single-supply operation down to 2.7V, including 3.3V. At 3.3V, it maintains key parameters: input offset voltage ≤5mV, input bias current ≤2nA (max), and propagation delay ≤200ns (typical). Its rail-to-rail common-mode input range (0V to VDD−1.5V) ensures compatibility with ground-referenced 3.3V sensor signals, confirming functional readiness for 3.3V system integration.
Is the TLC352CPWR pin-compatible with the LM393?
Yes, the TLC352CPWR shares identical pin assignments with the LM393 in TSSOP-8 (PW) packaging: pins 1–4 and 5–8 map directly to OUT A, IN− A, IN+ A, GND, IN+ B, IN− B, OUT B, and VDD. This allows direct PCB-level substitution in existing LM393 layouts, provided layout accommodates TSSOP-8 footprint and thermal considerations are reviewed for the lower-power TLC352CPWR.
What is the purpose of the open-drain output in the TLC352CPWR?
The open-drain output in the TLC352CPWR enables flexible logic-level translation by allowing external pull-up to voltages up to 16V - independent of the comparator's VDD rail. It also supports wired-AND bus configurations where multiple comparators share a single interrupt line. This architecture eliminates need for external logic gates and simplifies multi-signal alarm aggregation in systems using the TLC352CPWR.
Does the TLC352CPWR require hysteresis for stable operation?
Hysteresis is not mandatory but strongly recommended when input signals transition slowly near the switching threshold, as the TLC352CPWR's ultra-low input offset (≤5mV) and high gain can cause output chatter due to noise. External hysteresis - implemented via positive feedback resistors - adds controlled switching windows (e.g., ±10mV) to ensure clean transitions. Application notes SNOA997 and SBOA313 provide verified circuits for both inverting and non-inverting configurations using the TLC352CPWR.
TLC352CPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Series:
- LinCMOS™
- Packaging:
- Tape & Reel (TR)
- 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:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-TSSOP
TLC352CPWR FAQ
1.How can I place an order for TLC352CPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC352CPWR 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 TLC352CPWR reliable?
The price and inventory of TLC352CPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC352CPWR is usually 5 days.
3.What payment methods are accepted for TLC352CPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC352CPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC352CPWR?
TLC352CPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC352CPWR 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 TLC352CPWR?
For technical support, including TLC352CPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC352CPWR requirements.
6.How does Aetrix verify that TLC352CPWR is sourced from the original manufacturer or authorized distributors?
All TLC352CPWR 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 TLC352CPWR meets industry standards.
7.What is the process for return or replacement of TLC352CPWR?
All TLC352CPWR units undergo pre-shipment inspection (PSI). If there is an issue with TLC352CPWR, 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 TLC352CPWR part is unused and in its original packaging.
Return procedure for TLC352CPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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