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Texas Instruments TLC393CPSR
- Part No.:
- TLC393CPSR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
TLC393CPSR.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,601
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Product details
Overview
TLC393CPSR from Texas Instruments is a dual micropower voltage comparator with open-drain CMOS outputs, designed for single-supply operation from 3 V to 16 V. It delivers 110 µW typical supply power at 5 V, 2.5 µs typical propagation delay (tPLH) with 5-mV overdrive, and 5 mV max input offset voltage at 25°C - enabling precision threshold detection in battery-powered sensor interfaces and power supervision circuits.
For engineers reviewing the TLC393CPSR datasheet, TLC393CPSR pinout, TLC393CPSR application, or TLC393CPSR equivalent, this page provides verified technical context, commercial-grade temperature range (0°C to 70°C), LinCMOS™-based input stage stability, open-drain output compatibility with pull-up loads, and validated alternative options for low-power comparator selection.
Technical Context
The TLC393CPSR implements two independent comparators using Texas Instruments' LinCMOS™ process, delivering high input impedance (>1012 Ω), ultra-low input bias current (5 pA typ at 25°C), and stable input offset voltage even under differential stress. Its open-drain output stage requires external pull-up and supports interfacing to TTL, CMOS, or mixed-voltage logic systems.
It operates across 3 V–16 V supply range with common-mode input voltage spanning −0.2 V to (VDD − 1.5) V, and features on-chip ESD protection rated to 2000 V (MIL-STD-883C, Method 3015.2). The device avoids linear-region stress by design - no internal servo loop - requiring test methods that avoid forcing output into analog conduction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 16 V - supports wide-input industrial and automotive auxiliary rails without regulation. |
| Quiescent Supply Current | 22 µA typ (both comparators, 5 V, 25°C) - enables multi-year battery life in always-on monitoring nodes. |
| Input Offset Voltage | 5 mV max at 25°C, 6.5 mV max over 0°C to 70°C - ensures reliable switching at ≤10-mV signal margins. |
| Propagation Delay (tPLH) | 2.5 µs typ at 5 V, 5-mV overdrive, 15-pF load - balances speed and power for medium-frequency window detection. |
| Output Type | Open-drain CMOS - allows wired-OR logic, level translation, and flexible pull-up to any voltage ≤16 V. |
| Input Bias Current | 5 pA typ at 25°C, 0.6 nA max at 70°C - preserves accuracy in high-impedance sensor bridges and RC timing networks. |
| Common-Mode Rejection | 84 dB min over full temperature range - maintains threshold stability despite supply ripple or ground bounce. |
Pinout & Package
Package: TSSOP-8 (PW), 3.0 mm × 4.4 mm, 0.65 mm pitch, moisture sensitivity level 1 (260°C reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Open-drain output of Comparator 1 - requires external pull-up; sinks up to 20 mA. |
| 2 | 1IN− | Inverting input of Comparator 1 - high-impedance node; bias current <1 pA at 25°C. |
| 3 | 1IN+ | Non-inverting input of Comparator 1 - identical electrical characteristics to 1IN−. |
| 4 | GND | Analog/digital ground reference - must be low-impedance; decoupling capacitor required near pin. |
| 5 | VDD | Positive supply rail - accepts 3 V–16 V; internal ESD protection active up to ±18 V differential. |
| 6 | 2OUT | Open-drain output of Comparator 2 - electrically isolated from 1OUT; supports independent pull-ups. |
| 7 | 2IN− | Inverting input of Comparator 2 - fully independent; no crosstalk with Comparator 1 inputs. |
| 8 | 2IN+ | Non-inverting input of Comparator 2 - matched offset and bias performance to other inputs. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent comparators | Two functionally isolated channels in one 8-pin TSSOP - reduces board area vs discrete solutions. |
| LinCMOS™ input stage | Sub-nA input bias and stable offset under differential stress - eliminates drift-induced false triggers in precision sensing. |
| Single-supply operation | Operates from 3 V to 16 V with rail-to-rail common-mode input range - eliminates need for negative supply or level shifters. |
| ESD-protected architecture | Withstands 2000 V HBM per MIL-STD-883C - improves manufacturing yield and field reliability in unshielded environments. |
| Low-power open-drain outputs | 20 mA sink capability with <400 mV VOL at 6 mA - drives LEDs, MOSFET gates, or logic directly with minimal external components. |
Applications
| Battery Voltage Monitor | Motor Overcurrent Protection |
|---|---|
|
Use Scenario: Detecting undervoltage and overvoltage thresholds on a 3.3-V or 5-V Li-ion battery pack during charging and discharge cycles. IC Role / Device Role / Timing Role: Dual comparator configures as window detector - one channel monitors lower limit, the other upper limit, both feeding OR logic to system reset. Use Value: 110 µW total quiescent power extends standby time; 5-mV offset ensures accurate trip points within ±1% of nominal battery voltage. |
Use Scenario: Monitoring shunt voltage across an H-bridge motor driver to trigger shutdown before thermal damage occurs. IC Role / Device Role / Timing Role: One comparator compares shunt voltage against fixed reference; output drives gate driver enable/disable line with <2.5 µs response. Use Value: Fast propagation delay prevents MOSFET shoot-through; open-drain output interfaces directly to 5-V logic-level enable pins. |
| Temperature Threshold Alarm | Power Supply Supervisor |
|
Use Scenario: Converting thermistor voltage divider output into digital alert when ambient temperature exceeds 70°C in industrial enclosures. IC Role / Device Role / Timing Role: Comparator compares thermistor-derived voltage to precision reference; hysteresis added via feedback resistor for noise immunity. Use Value: Sub-pA input bias prevents loading of high-resistance thermistor networks; stable offset ensures repeatable trip point across temperature. |
Use Scenario: Providing early power-fail warning and clean reset assertion for microcontrollers during brownout conditions on 5-V or 12-V rails. IC Role / Device Role / Timing Role: One comparator monitors regulated rail; second monitors unregulated rail - combined to generate sequenced reset and interrupt signals. Use Value: 84 dB CMRR rejects supply ripple; wide VDD range allows direct monitoring of multiple rails without level translation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM393DR | Higher supply current (500 µA typ), slower response (1.3 µs min tPLH but only at 5-V supply and large overdrive), BJT input stage. | Limited to 2-V to 36-V supply; lacks LinCMOS™ input stability - unsuitable for high-Z sensor interfaces. | Select LM393DR only if cost is primary constraint and input bias/offset stability are non-critical. |
| TLC3702IPW | Push-pull outputs (no external pull-up needed), same LinCMOS™ process, 100 µW power, but higher VIO (7 mV max over temp). | Eliminates pull-up resistors but cannot perform wired-OR; less flexible for mixed-voltage bus interfacing. | Choose TLC3702IPW when driving logic directly without level translation is preferred and open-drain functionality is unnecessary. |
Compared with LM393DR and TLC3702IPW, the TLC393CPSR uniquely combines ultra-low power (22 µA), open-drain flexibility, and LinCMOS™ input precision - making it optimal for battery-constrained, high-impedance, or multi-rail detection systems where layout simplicity and parametric stability are critical.
Availability
TLC393CPSR is available at Aetrix Electronics and suitable for battery-powered sensors, industrial power supervisors, and motor control safety monitors requiring stable component supply across extended production lifecycles.
Supply support for TLC393CPSR 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.
The TLC393 series belongs to TI's LinCMOS™ comparator family, engineered specifically for micropower, high-input-impedance, and stable-offset applications in portable, industrial, and automotive systems.
FAQ
What is the maximum operating temperature range for the TLC393CPSR?
The TLC393CPSR is characterized for operation from 0°C to 70°C - the commercial temperature grade. This range is explicitly defined in the datasheet's recommended operating conditions table and applies to all electrical specifications unless otherwise noted. It is not rated for extended industrial (−40°C to 85°C) or automotive (−40°C to 125°C) ranges; those require TLC393I or TLC393Q variants respectively. The TLC393CPSR's thermal limits ensure consistent offset voltage (≤6.5 mV), propagation delay (≤2.5 µs typ), and supply current (≤50 µA) across its full specified range.
Does the TLC393CPSR support rail-to-rail input operation?
Yes, the TLC393CPSR supports a common-mode input voltage range from −0.2 V to (VDD − 1.5) V at 0°C to 70°C, which qualifies as rail-to-rail for most practical purposes. At VDD = 5 V, inputs can swing from −0.2 V to 3.5 V - covering nearly the full supply range. However, inputs must remain within the absolute maximum ratings (−0.3 V to VDD) to avoid forward-biasing ESD diodes. The TLC393CPSR does not guarantee correct operation outside the specified common-mode range, even if within absolute limits.
Can the TLC393CPSR drive an LED directly?
Yes, the TLC393CPSR can drive an LED directly using its open-drain output. With a 5-V supply and typical 20-mA sink capability, it supports standard indicator LEDs (e.g., 2-V forward voltage, 10-mA current) when paired with a series current-limiting resistor (e.g., 300 Ω). The low-level output voltage is ≤400 mV at 6 mA (25°C), ensuring sufficient headroom. For higher-current LEDs or 12-V supplies, verify VOL remains below LED forward voltage plus resistor drop - the TLC393CPSR's 20-mA rating and 16-V output voltage ceiling allow robust direct-drive configurations.
Is an external pull-up resistor required for the TLC393CPSR outputs?
Yes, an external pull-up resistor is mandatory for each open-drain output (pins 1 and 6) of the TLC393CPSR to establish a valid high logic level. Without it, the output floats in the high state and cannot interface with downstream logic. Typical values range from 2.2 kΩ to 10 kΩ, selected based on rise time requirements and supply voltage (e.g., 4.7 kΩ for 5-V pull-up to achieve <1 µs rise with 15-pF load). The TLC393CPSR itself does not provide internal pull-ups - this is a fundamental aspect of its open-drain architecture.
How does the LinCMOS™ process benefit the TLC393CPSR in real-world designs?
The LinCMOS™ process gives the TLC393CPSR exceptionally low input bias current (5 pA typ), stable input offset voltage (<5 mV at 25°C), and high common-mode rejection (84 dB) - all critical for precision sensing. In practice, this means the TLC393CPSR avoids loading high-impedance sources like thermistors or photodiode amplifiers, maintains accurate trip points despite supply ripple, and eliminates calibration drift due to temperature or input stress. These traits directly enable reliable long-term operation in battery-powered instrumentation and industrial monitoring where passive component tolerances dominate overall accuracy.
TLC393CPSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Series:
- LinCMOS™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- MOS, Open-Drain
- Voltage - Supply, Single/Dual (±):
- 3V ~ 16V
- :
- 5mV @ 10V
- Voltage - Input Offset (Max):
- 5pA @ 5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 50µA
- Current - Quiescent (Max):
- 84dB CMRR
- CMRR, PSRR (Typ):
- 4.5µs
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SO
TLC393CPSR FAQ
1.How can I place an order for TLC393CPSR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC393CPSR 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 TLC393CPSR reliable?
The price and inventory of TLC393CPSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC393CPSR is usually 5 days.
3.What payment methods are accepted for TLC393CPSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC393CPSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC393CPSR?
TLC393CPSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC393CPSR 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 TLC393CPSR?
For technical support, including TLC393CPSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC393CPSR requirements.
6.How does Aetrix verify that TLC393CPSR is sourced from the original manufacturer or authorized distributors?
All TLC393CPSR 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 TLC393CPSR meets industry standards.
7.What is the process for return or replacement of TLC393CPSR?
All TLC393CPSR units undergo pre-shipment inspection (PSI). If there is an issue with TLC393CPSR, 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 TLC393CPSR part is unused and in its original packaging.
Return procedure for TLC393CPSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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