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Texas Instruments TLC352IPWG4
- Part No.:
- TLC352IPWG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC352IPWG4.pdf
- Description:
- IC COMPARATOR 2 DIFF 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,023
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Product details
Overview
TLC352IPWG4 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 5 mV max input offset voltage at 25°C, 5 pA typical input bias current, and 150 µA typical supply current at 5V - enabling precision threshold detection in battery-powered industrial sensors and power management circuits.
For engineers reviewing the TLC352IPWG4 datasheet, TLC352IPWG4 pinout, TLC352IPWG4 application, or TLC352IPWG4 equivalent, key selection criteria include its industrial temperature range (−40°C to 85°C), rail-to-rail common-mode input capability, TTL/MOS/CMOS-compatible open-drain outputs, and pin compatibility with LM393 for drop-in upgrades in legacy comparator designs.
Technical Context
The TLC352IPWG4 integrates two independent high-impedance (10¹² Ω typical) comparators fabricated in CMOS technology, supporting both single-supply (2.7V–18V) and dual-supply configurations where |VDD − VSS| remains within 2.7V–18V. Its input stage operates with ultra-low input bias current (5 pA typ) and includes ESD protection rated at 2000V HBM.
Each comparator features an n-channel open-drain output capable of sinking up to 16 mA at 5V, with logic-level translation enabled by external pull-up voltages up to 16V - independent of the comparator's supply rail. Propagation delay is 200 ns typical (100 mV overdrive, CL = 15 pF), optimized for fast response in overvoltage monitoring and zero-crossing detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 18V - supports direct integration into 3.3V, 5V, and 12V systems without level-shifting. |
| Input Offset Voltage (max) | 5 mV at 25°C - ensures reliable switching accuracy for ±25 mV threshold windows in sensor interface applications. |
| Input Bias Current (typ) | 5 pA - enables direct connection to high-impedance sources like photodiodes or piezoelectric transducers. |
| Supply Current (typ, both channels) | 150 µA at 5V - extends battery life in portable instrumentation and wireless sensor nodes. |
| Propagation Delay (typ) | 200 ns - suitable for real-time fault detection in motor control feedback loops and power supply sequencing. |
| Common-Mode Input Range | Includes ground (0V) to VDD − 1.5V - allows direct sensing of signals referenced to system ground or negative rails. |
| Output Configuration | Open-drain - permits wired-AND logic, multi-comparator arbitration, and flexible pull-up to higher voltage domains (up to 16V). |
Pinout & Package
Package: SOIC-8 (D package), 3.91 mm × 4.90 mm × 1.75 mm body, 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 - high-impedance node; accepts signals from 0V to VDD − 1.5V. |
| 3 | IN+ A | Non-inverting input of Comparator A - same voltage range and impedance as IN− A. |
| 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; identical specs. |
| 6 | IN− B | Inverting input of Comparator B - supports independent threshold configuration per channel. |
| 7 | VDD | Positive supply rail - powers both comparators; accepts 2.7V–18V with no reverse polarity protection. |
| 8 | OUT B | Open-drain output of Comparator B - independently controllable; shares no internal logic with OUT A. |
Key Features
| Feature | Design Value |
|---|---|
| Single/dual-supply operation | Operates from 2.7V–18V single supply or split supplies with |VDD − VSS| ≥ 2.7V - simplifies power architecture in mixed-voltage systems. |
| Ultra-low input bias current | 5 pA typical - minimizes loading error on high-Z sources such as RC timing networks or capacitive sensors. |
| ESD protection | 2000V HBM rating - reduces risk of field failure during handling and PCB assembly without requiring external protection diodes. |
| LM393 pin compatibility | Identical SOIC-8 pinout and functional behavior - enables direct replacement in existing designs with no layout changes. |
| Rail-to-rail common-mode range | Accepts inputs from GND to VDD − 1.5V across full temperature range - eliminates need for input biasing resistors in ground-referenced applications. |
Applications
| Overvoltage Protection Circuit | Battery Voltage Monitor |
|---|---|
Use Scenario: Detects when DC bus voltage exceeds safe operating limit in industrial power supplies. IC Role / Device Role / Timing Role: Dual comparator compares sensed bus voltage against two independent thresholds - one for warning flag, one for immediate shutdown signal. Use Value: 5 mV offset and 200 ns propagation delay enable precise, fast-response tripping without false triggers from noise or slow transients. | Use Scenario: Monitors remaining charge in 3.7V Li-ion battery packs used in portable medical devices. IC Role / Device Role / Timing Role: Compares battery voltage against low-voltage cutoff (3.0V) and critical depletion (2.8V) references using resistor dividers. Use Value: 150 µA total supply current extends operational runtime; open-drain outputs interface directly with microcontroller GPIOs or LED drivers. |
| Zero-Crossing Detector | Industrial Temperature Threshold Alarm |
Use Scenario: Identifies AC line zero-crossing points for phase-controlled dimming in smart lighting systems. IC Role / Device Role / Timing Role: One comparator channel detects crossing of AC waveform through virtual ground; second channel provides hysteresis control. Use Value: Rail-to-rail input range allows direct AC coupling; 5 pA bias current prevents distortion of small-signal transformer outputs. | Use Scenario: Triggers audible/visual alerts when ambient temperature exceeds preset limits in HVAC control panels. IC Role / Device Role / Timing Role: Compares thermistor voltage divider output against stable reference voltages set by precision resistors. Use Value: −40°C to 85°C industrial rating ensures reliability in uncontrolled environments; 5 mV offset maintains alarm accuracy across temperature extremes. |
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; 2 mV max offset at 25°C but 250 µA higher supply current (0.8 mA vs. 0.15 mA); no ESD rating specified. | Lower precision offset but faster propagation (1.3 µs vs. 200 ns) - better for high-speed digital edge detection, worse for low-power analog sensing. | Select LM393DR only if speed > 500 ns is required and power budget allows >5× higher current draw. |
| TLC372IDR | Same CMOS process; 3 mV max offset; 75 µA/channel supply current; identical pinout and industrial temp range. | Lower quiescent current and tighter offset - superior for ultra-low-power battery applications where every µA matters. | Choose TLC372IDR when optimizing for lowest possible supply current while retaining full TLC352IPWG4 functionality and footprint. |
Compared with LM393DR and TLC372IDR, the TLC352IPWG4 offers the best balance of low power (150 µA), robust ESD protection (2000V), and proven industrial reliability - making it ideal for cost-sensitive, long-lifecycle embedded systems where parametric stability and handling safety are critical.
Availability
TLC352IPWG4 is available at Aetrix Electronics and suitable for overvoltage protection circuits, battery voltage monitors, zero-crossing detectors, and industrial temperature threshold alarms requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TLC352IPWG4 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-efficient IC design.
The TLC352 belongs to TI's precision comparator product line, engineered specifically for low-power, high-impedance analog sensing in industrial, automotive, and portable equipment - emphasizing accuracy, reliability, and ease of integration.
FAQ
What is the maximum supply voltage for the TLC352IPWG4?
The TLC352IPWG4 supports a maximum supply voltage of 18V, as specified in its Absolute Maximum Ratings table. Operation beyond this voltage risks permanent damage. For reliable long-term performance, TI recommends staying within the Recommended Operating Conditions range of 2.7V to 16V - especially under full temperature range (−40°C to 85°C) where 16V is the upper limit.
Does the TLC352IPWG4 have built-in hysteresis?
No, the TLC352IPWG4 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 output chatter near the switching threshold. Application notes SBOA219 and SNOA997 provide verified schematics for both inverting and non-inverting hysteresis configurations compatible with the TLC352IPWG4.
Can the TLC352IPWG4 outputs drive LEDs directly?
Yes, the TLC352IPWG4 open-drain outputs can sink up to 16 mA per channel at 5V, sufficient to drive standard indicator LEDs with appropriate series current-limiting resistors. For example, with a 5V pull-up and red LED (VF ≈ 1.8V), a 220Ω resistor limits current to ~14.5 mA - well within the device's rated sink capability and ensuring reliable turn-on without exceeding VOL specifications.
Is the TLC352IPWG4 pin-compatible with the LM393?
Yes, the TLC352IPWG4 is explicitly designed as a pin-compatible, functionally enhanced replacement for the LM393 in SOIC-8 packages. Both share identical pin assignments (OUT A, IN− A, IN+ A, GND, IN+ B, IN− B, VDD, OUT B), allowing direct substitution in existing layouts. However, the TLC352IPWG4 adds CMOS advantages: lower supply current, higher input impedance, and integrated ESD protection - with no PCB changes required.
What is the operating temperature range of the TLC352IPWG4?
The TLC352IPWG4 is characterized for operation across the industrial temperature range of −40°C to +85°C. This rating is confirmed in the Device Information table and Recommended Operating Conditions section of the official datasheet. All electrical specifications - including input offset voltage, supply current, and propagation delay - are guaranteed across this full range, making the TLC352IPWG4 suitable for deployment in harsh environmental conditions.
TLC352IPWG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Series:
- LinCMOS™
- Packaging:
- Tube
- 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:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-TSSOP
TLC352IPWG4 FAQ
1.How can I place an order for TLC352IPWG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC352IPWG4 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 TLC352IPWG4 reliable?
The price and inventory of TLC352IPWG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC352IPWG4 is usually 5 days.
3.What payment methods are accepted for TLC352IPWG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC352IPWG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC352IPWG4?
TLC352IPWG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC352IPWG4 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 TLC352IPWG4?
For technical support, including TLC352IPWG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC352IPWG4 requirements.
6.How does Aetrix verify that TLC352IPWG4 is sourced from the original manufacturer or authorized distributors?
All TLC352IPWG4 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 TLC352IPWG4 meets industry standards.
7.What is the process for return or replacement of TLC352IPWG4?
All TLC352IPWG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC352IPWG4, 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 TLC352IPWG4 part is unused and in its original packaging.
Return procedure for TLC352IPWG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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