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Texas Instruments TLC352CDRG4
- Part No.:
- TLC352CDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC352CDRG4.pdf
- Description:
- IC COMPARATOR 2 DIFF 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,296
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Product details
Overview
TLC352CDRG4 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 input bias current (5 pA typical), high input impedance (10¹² Ω typical), and 5 mV max input offset voltage at 25°C - enabling precision threshold detection in battery-powered sensor interfaces and industrial monitoring systems.
For engineers reviewing the TLC352CDRG4 datasheet, TLC352CDRG4 pinout, TLC352CDRG4 application, or TLC352CDRG4 equivalent, key selection considerations include its industrial temperature range (−40°C to 85°C), SOIC-8 package compatibility, open-drain output flexibility for wired-AND logic and level translation, and direct functional equivalence to LM393 in legacy designs.
Technical Context
The TLC352CDRG4 integrates two independent comparators fabricated in CMOS technology, each featuring rail-to-rail common-mode input range (including ground) and ESD protection rated at 2000 V. Its n-channel open-drain outputs require external pull-up resistors and support logic-level translation up to 16 V independent of VDD.
It operates with supply currents as low as 65 µA per channel at 2.7 V (25°C), achieving 200 ns typical propagation delay under 100 mV overdrive at 5 V. Input offset voltage remains stable across temperature (±6.5 mV full-range), and input bias current stays below 2 nA over −40°C to 85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V - supports direct integration into 3.3 V, 5 V, and 12 V systems without level-shifting. |
| Input Offset Voltage (max) | 5 mV at 25°C - enables accurate voltage window detection with ≤10 mV hysteresis design margin. |
| Input Bias Current (typ) | 5 pA - preserves signal integrity when interfacing with high-impedance sources like photodiodes or RC filters. |
| Propagation Delay (typ) | 200 ns at 5 V, 100 mV overdrive - suitable for medium-speed control loops and digital edge detection. |
| Operating Temperature | −40°C to +85°C - qualified for industrial environments including motor drives and PLC I/O modules. |
| Output Configuration | Open-drain (n-channel) - allows wired-AND logic, mixed-voltage interfacing, and flexible pull-up to 16 V. |
| ESD Rating | 2000 V HBM - provides baseline robustness against handling-induced electrostatic discharge. |
Pinout & Package
Package: SOIC-8 (D package), 3.91 mm × 4.90 mm body, 1.75 mm max height, gull-wing leads, RoHS-compliant NIPDAU finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Open-drain output of Comparator A - requires external pull-up; sinks current when IN+ < IN−. |
| 2 | IN− A | Inverting input of Comparator A - accepts common-mode voltages from GND to VDD − 1.5 V. |
| 3 | IN+ A | Non-inverting input of Comparator A - high-impedance node (10¹² Ω) for precision reference sensing. |
| 4 | GND | Ground reference for both comparators and internal circuitry - must be low-impedance return path. |
| 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 for dual-sensor applications. |
| 7 | OUT B | Open-drain output of Comparator B - independently controllable; compatible with shared pull-up bus. |
| 8 | VDD | Positive supply pin - powers both comparators; accepts 2.7 V–16 V; no reverse polarity protection. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 5 pA typical - eliminates loading error on high-Z sensors (e.g., pH electrodes, piezoelectric elements). |
| Rail-to-rail common-mode input | Includes ground and extends to VDD − 1.5 V - enables direct interface to 0 V-referenced signals without biasing. |
| Single-supply operation down to 2.7 V | Supports coin-cell and Li-ion battery systems - maintains functionality during brownout conditions. |
| Pin-compatible with LM393 | Direct drop-in replacement in existing PCB layouts - retains identical pin mapping and footprint. |
| CMOS input stage | 10¹² Ω input impedance - minimizes current draw from voltage dividers and reference networks. |
Applications
| Overvoltage Protection Circuit | Battery Charge-End Detection |
|---|---|
|
Use Scenario: Monitoring DC bus voltage in power supplies to trigger shutdown before capacitor overvoltage. IC Role / Device Role / Timing Role: Dual comparator acting as independent high- and low-threshold detector with hysteresis. Use Value: 5 mV offset tolerance ensures ±10 mV trip accuracy; open-drain outputs enable OR'ed fault signaling to MCU interrupt pin. |
Use Scenario: Detecting full-charge condition in lithium-ion battery chargers using voltage and dV/dt termination. IC Role / Device Role / Timing Role: Comparator B monitors cell voltage against 4.2 V reference; Comparator A detects zero-current slope. Use Value: 5 pA input bias prevents reference divider error; 200 ns response enables fast cutoff before overcharge. |
| Industrial Temperature Sensor Interface | Programmable Logic Threshold Generator |
|
Use Scenario: Converting RTD or thermistor analog output into clean digital status flags for PLC analog input modules. IC Role / Device Role / Timing Role: Dual comparator compares sensor voltage against upper/lower trip points set by precision DAC. Use Value: −40°C to 85°C rating matches industrial ambient; rail-to-rail input accommodates 0–2.5 V sensor spans without level shift. |
Use Scenario: Generating configurable logic thresholds in test equipment where reference voltage is software-adjustable. IC Role / Device Role / Timing Role: Comparator A sets rising-edge trigger; Comparator B sets falling-edge trigger for hysteresis window. Use Value: Independent inputs allow asymmetric trip points; open-drain outputs interface directly to 3.3 V or 5 V FPGA I/O banks. |
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 input stage; higher input bias current (250 nA); wider offset spread (7 mV max); no ESD rating specified. | Lower cost, but unsuitable for high-Z sources or ESD-prone environments; limited to 0°C–70°C. | Select LM393DR only for cost-sensitive commercial applications with buffered inputs and benign ESD conditions. |
| TLC372CDR | Same CMOS architecture; lower supply current (75 µA/channel typ at 3 V); 10 mV max offset; identical SOIC-8 pinout. | Better power efficiency at low VDD, but reduced DC precision; optimized for ultra-low-power battery monitoring. | Choose TLC372CDR when supply current <100 µA is critical and 10 mV offset is acceptable for system-level accuracy. |
Compared with LM393DR and TLC372CDR, the TLC352CDRG4 uniquely balances industrial temperature range, 5 mV offset precision, 5 pA input bias, and 2000 V ESD rating - making it optimal for high-reliability sensor conditioning where signal fidelity and environmental robustness are co-prioritized.
Availability
TLC352CDRG4 is available at Aetrix Electronics and suitable for industrial automation, battery management systems, and sensor interface circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC352CDRG4 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 chain components.
The TLC352CDRG4 belongs to TI's precision comparator product line, engineered for applications demanding low power, high input impedance, and reliable operation in harsh industrial environments.
FAQ
What is the maximum supply voltage for the TLC352CDRG4?
The TLC352CDRG4 supports a maximum supply voltage of 16 V under recommended operating conditions, with absolute maximum rating at 18 V. Operation above 16 V risks exceeding safe power dissipation limits and may degrade long-term reliability. The device is optimized for stable performance across 2.7 V to 16 V, making it suitable for 3.3 V, 5 V, and 12 V systems. Always observe thermal derating guidelines when operating near the upper limit.
Does the TLC352CDRG4 have built-in hysteresis?
No, the TLC352CDRG4 does not include internal hysteresis. It is a basic comparator requiring external positive feedback (e.g., resistor network between output and non-inverting input) to implement hysteresis and prevent noise-induced output chatter. Application notes SBOA219 and SNOA997 provide validated schematics for both inverting and non-inverting configurations. The absence of internal hysteresis preserves design flexibility while allowing precise, application-specific trip-point tuning.
Can the TLC352CDRG4 outputs drive TTL logic directly?
Yes, the TLC352CDRG4 open-drain outputs can interface with TTL logic when used with an appropriate pull-up resistor to 5 V. With a 10 kΩ pull-up, the output achieves VOL ≤ 400 mV at IOL = 4 mA (25°C), satisfying TTL VOH ≥ 2.4 V and VOL ≤ 0.8 V requirements. However, rise time depends on RC time constant - smaller pull-ups improve speed but increase static power and VOL. For guaranteed TTL compatibility, verify load conditions per actual board capacitance and switching frequency.
What is the input common-mode voltage range for the TLC352CDRG4?
The TLC352CDRG4 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 5 V supply, this translates to 0 V to 3.5 V; at 12 V, it extends to 0 V to 10.5 V. This rail-to-rail capability (including ground) enables direct connection to 0 V-referenced sensors and eliminates need for input biasing networks - simplifying front-end design in battery-powered and industrial measurement systems.
Is the TLC352CDRG4 pin-compatible with the LM393?
Yes, the TLC352CDRG4 is pin-compatible with the LM393 in SOIC-8 (D) package: both share identical pin 1–8 assignments (OUT A, IN− A, IN+ A, GND, IN+ B, IN− B, OUT B, VDD). This allows direct PCB-level replacement without layout changes. However, note that TLC352CDRG4 uses CMOS inputs (5 pA bias) versus LM393's bipolar inputs (250 nA), so system-level performance - especially with high-impedance sources - will differ significantly despite mechanical compatibility.
TLC352CDRG4 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:
- Discontinued at Digi-Key
- 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-SOIC
TLC352CDRG4 FAQ
1.How can I place an order for TLC352CDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC352CDRG4 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 TLC352CDRG4 reliable?
The price and inventory of TLC352CDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC352CDRG4 is usually 5 days.
3.What payment methods are accepted for TLC352CDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC352CDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC352CDRG4?
TLC352CDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC352CDRG4 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 TLC352CDRG4?
For technical support, including TLC352CDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC352CDRG4 requirements.
6.How does Aetrix verify that TLC352CDRG4 is sourced from the original manufacturer or authorized distributors?
All TLC352CDRG4 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 TLC352CDRG4 meets industry standards.
7.What is the process for return or replacement of TLC352CDRG4?
All TLC352CDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC352CDRG4, 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 TLC352CDRG4 part is unused and in its original packaging.
Return procedure for TLC352CDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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