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Texas Instruments TLC352MP
- Part No.:
- TLC352MP
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- -
- Datasheet:
-
TLC352MP.pdf
- Description:
- DUAL COMPARATOR
- Quantity:
- Payment:
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Inventory:2,585
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Product details
Overview
TLC352MP 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 power management circuits.
For engineers reviewing the TLC352MP datasheet, TLC352MP pinout, TLC352MP application, or TLC352MP equivalent, key selection criteria include its rail-to-rail common-mode input range (including ground), TTL/MOS/CMOS-compatible open-drain outputs, ESD rating (2000V), industrial temperature range (−40°C to 85°C), and pin compatibility with LM393 in SOIC-8 packaging.
Technical Context
The TLC352MP integrates two independent high-impedance (10¹²Ω typical) comparators fabricated in CMOS technology, supporting both single-supply (2.7V–18V) and dual-supply operation (with ≥2.7V differential). Its input stage avoids phase inversion within the full common-mode range (0V to VDD − 1.5V), and each output is an n-channel open-drain structure capable of sinking up to 16mA at 5V.
Internal ESD protection clamps limit input/output voltage excursions to ±300mV beyond rails, and hysteresis implementation requires external resistor networks - no internal hysteresis is present. The device is characterized for industrial temperature operation (−40°C to 85°C) and specified with 5mV max VIO across temperature.
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) | 5mV at 25°C - ensures accurate switching thresholds in precision window or zero-crossing detection. |
| Input Bias Current (typ) | 5pA - enables direct connection to high-impedance sources like photodiodes or RC timing networks. |
| Supply Current (typ, both channels) | 150µA at 5V - extends battery life in portable instrumentation and IoT endpoint sensors. |
| Common-Mode Input Range | 0V to VDD − 1.5V - allows ground-referenced inputs and simplifies design of level-shifted signal conditioning. |
| Output Type | Open-drain (n-channel) - permits wired-AND logic, mixed-voltage interfacing (up to 16V pull-up), and flexible termination. |
| Propagation Delay (typ) | 200ns at 100mV overdrive - suitable for medium-speed monitoring (e.g., overvoltage lockout, battery charge state). |
Pinout & Package
Package: SOIC-8 (D package), 3.9mm × 4.9mm body, 1.27mm pitch, 1.75mm max height, RoHS-compliant NIPDAU lead 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 - shares same common-mode and bias current specs as Channel A. |
| 7 | OUT B | Open-drain output of Comparator B - independently controllable; supports OR-ing with OUT A. |
| 8 | VDD | Positive supply pin - powers both comparators; accepts 2.7V–18V; decoupling capacitor required. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 5pA typical - preserves signal integrity in high-Z sensor front-ends and RC-based timing circuits. |
| Wide supply voltage range | 2.7V to 18V - eliminates need for separate LDOs in multi-rail systems and supports legacy 12V industrial rails. |
| ESD-protected I/O | 2000V HBM rating - reduces susceptibility to handling damage during PCB assembly and field service. |
| Ground-sensing input range | Common-mode includes 0V - enables direct interface to ground-referenced transducers and single-ended ADC references. |
| LM393 pin compatibility | SOIC-8 footprint and pin function match - allows drop-in replacement in existing designs with verified layout. |
Applications
| Battery Voltage Monitor | Power Supply Sequencing |
|---|---|
|
Use Scenario: Detecting low-battery condition in portable medical devices using a resistive divider from Li-ion cell. IC Role / Device Role / Timing Role: Dual comparator compares divided cell voltage against two reference thresholds (e.g., 3.3V warn, 3.0V shutdown). Use Value: 150µA total supply current minimizes quiescent drain; open-drain outputs drive discrete MOSFETs or microcontroller GPIOs directly. |
Use Scenario: Enforcing strict power-up order across multiple rails (e.g., 12V → 5V → 3.3V) in FPGA carrier boards. IC Role / Device Role / Timing Role: Each comparator monitors one rail's presence and triggers enable signals only after prior rail reaches regulation. Use Value: Rail-to-rail input range allows direct sensing without level shifters; 5mV VIO ensures tight sequencing margins. |
| Overvoltage Protection Circuit | Zero-Crossing Detector |
|
Use Scenario: Safeguarding downstream converters by disabling input when AC-DC adapter output exceeds 13.2V. IC Role / Device Role / Timing Role: Single comparator compares scaled adapter output against precision reference; output drives latch or optocoupler. Use Value: 200ns propagation delay enables fast response to transient overvoltage events; 16mA sink capability drives opto-LED directly. |
Use Scenario: Generating clean digital zero-crossing pulses from 50/60Hz AC mains for TRIAC dimmer control. IC Role / Device Role / Timing Role: Comparator detects polarity reversal of transformer-coupled AC waveform; hysteresis prevents noise-induced chatter. Use Value: 5pA input bias current avoids loading transformer secondary; ground-inclusive input range simplifies biasing. |
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 supply current (500µA typ); 2mV max VIO; no ESD rating specified. | Less suitable for battery-powered designs; lower input impedance (1MΩ) limits high-Z source use. | Choose LM393DR only if cost is primary constraint and 5V-only operation with relaxed offset is acceptable. |
| TLC372CDR | Same CMOS process; 10pA IIB; 10mV VIO max; 100µA IDD; identical pinout and SOIC-8 package. | Higher offset and lower ESD rating (1500V) - less robust in noisy industrial environments. | Select TLC372CDR only when lower cost justifies 2× higher VIO and reduced ESD margin. |
Compared with LM393DR and TLC372CDR, the TLC352MP provides superior input bias current (5pA vs. 250nA/10pA), tighter offset control (5mV vs. 2mV/10mV), and certified 2000V ESD protection - making it optimal for precision, low-power, and ruggedized applications where long-term stability and noise immunity are critical.
Availability
TLC352MP is available at Aetrix Electronics and suitable for battery management systems, industrial power sequencers, overvoltage protection modules, and AC zero-crossing detectors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC352MP 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 and power management ICs.
The TLC352MP belongs to TI's precision comparator product line, engineered specifically for low-power, high-input-impedance applications in industrial, medical, and portable electronics where accuracy, reliability, and supply flexibility are essential.
FAQ
What is the maximum supply voltage for the TLC352MP?
The TLC352MP supports a maximum supply voltage of 18V on the VDD pin, as specified in its Absolute Maximum Ratings. Operation above this level risks permanent damage. For reliable long-term performance, TI recommends staying within the Recommended Operating Conditions of 2.7V to 16V - especially under full temperature range (−40°C to 85°C) where 16V is the upper limit.
Does the TLC352MP have internal hysteresis?
No, the TLC352MP does not include internal hysteresis. Its transfer function is purely comparator-based with ultra-stable offset, requiring external resistor networks to implement hysteresis for noise immunity. Application notes SNOA997 and SBOA313 provide validated inverting and non-inverting hysteresis configurations compatible with the TLC352MP's open-drain outputs and input voltage range.
Can the TLC352MP outputs drive a 12V logic interface?
Yes, the TLC352MP open-drain outputs can interface with 12V logic systems. Because the output stage is n-channel open-drain, an external pull-up resistor to 12V is required. The device's output is rated for up to 18V, and its sink current capability (16mA at 5V, derated at higher voltages) supports direct driving of 12V-tolerant inputs - provided the pull-up resistor value limits power dissipation and VOL remains within logic-low thresholds.
What is the operating temperature range of the TLC352MP?
The TLC352MP is characterized for industrial operation from −40°C to +85°C. This specification applies to all electrical parameters in the datasheet's "TLC352I" column, including input offset voltage (5mV max), supply current (200µA max), and propagation delay. The "MP" suffix denotes the SOIC-8 package variant qualified across this full industrial range.
Is the TLC352MP pin-compatible with the LM393?
Yes, the TLC352MP is pin-compatible with the LM393 in SOIC-8 (D) packaging: both share identical pin numbering, functions (OUT A, IN− A, IN+ A, GND, IN+ B, IN− B, OUT B, VDD), and footprint dimensions. However, the TLC352MP uses CMOS inputs (10¹²Ω impedance, 5pA bias) versus LM393's bipolar inputs (1MΩ, 250nA), so layout and biasing must account for these fundamental differences despite mechanical compatibility.
TLC352MP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- -
- Number of Elements:
- -
- Output Type:
- -
- Voltage - Supply, Single/Dual (±):
- -
- :
- -
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- -
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- :
- -
TLC352MP FAQ
1.How can I place an order for TLC352MP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC352MP 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 TLC352MP reliable?
The price and inventory of TLC352MP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC352MP is usually 5 days.
3.What payment methods are accepted for TLC352MP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC352MP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC352MP?
TLC352MP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC352MP 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 TLC352MP?
For technical support, including TLC352MP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC352MP requirements.
6.How does Aetrix verify that TLC352MP is sourced from the original manufacturer or authorized distributors?
All TLC352MP 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 TLC352MP meets industry standards.
7.What is the process for return or replacement of TLC352MP?
All TLC352MP units undergo pre-shipment inspection (PSI). If there is an issue with TLC352MP, 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 TLC352MP part is unused and in its original packaging.
Return procedure for TLC352MP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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