TSX393IST STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
The TSX393IST is a dual CMOS micropower voltage comparator from STMicroelectronics with open-drain outputs, consuming only 5 µA supply current per comparator and operating up to 16 V supply. In an 8-pin SOIC package, it is designed for battery-powered threshold detection and window comparator applications.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TSX393IST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5900(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TSX393IST?
- Dual independent comparators in a single 8-pin SOIC package
- Ultra-low 5 µA quiescent current per comparator for battery-critical designs
- Wide 16 V supply range supporting single and split supply configurations
- Open-drain outputs for flexible logic interfacing and wired-OR buses
- 0.00001 µA typical input bias current for high-impedance reference connections
- 6 mV maximum input offset voltage for threshold detection accuracy
What is TSX393IST used for?
The TSX393IST is used in battery-operated systems for voltage threshold detection, power-good monitoring, and window comparator circuits where ultra-low quiescent current is critical to extend battery life. Its open-drain outputs allow the device to interface directly with pull-up resistors to different logic supply voltages, enabling level translation between 3.3 V MCUs and 5 V or 12 V systems. It is also applied in overcurrent protection, battery charge monitoring, and analog-to-digital conversion using simple resistor-ladder voltage windows in portable and IoT devices.
What are the specifications of TSX393IST?
| Factory Lead Time | 24Weeks |
| YTEOL | 8 |
| Amplifier Type | COMPARATOR |
| Average Bias Current-Max (IIB) | 0.0012 µA |
| Bias Current-Max (IIB) @25C | 0.00001 µA |
| Input Offset Voltage-Max | 6000 µV |
| JESD-30 Code | S-PDSO-G8 |
| Number of Functions | 2 |
| Output Type | OPEN-DRAIN |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Response Time-Nom | 2500ns |
| Supply Current-Max | 0.014mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Philippines |
Where can I find the TSX393IST datasheet?
TSX393IST Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for TSX393IST?
Compatible alternatives and drop-in replacements for TSX393IST:
Frequently Asked Questions
How much current does the TSX393IST draw, and why does this matter in battery-powered designs?
The TSX393IST consumes only 5 µA supply current per comparator channel, for a total of approximately 10 µA when both channels are active. In a coin cell or small Li-ion battery application with a 200 mAh capacity, this ultra-low consumption allows the comparator to run continuously for over 800 days, making it ideal for always-on threshold monitoring in IoT and wearable devices.
What output type does the TSX393IST use, and how does this affect circuit design?
The TSX393IST features open-drain outputs, which require an external pull-up resistor to the desired logic supply voltage. This configuration allows flexible logic-level translation — for example, a pull-up to 3.3 V interfaces the comparator with low-voltage MCU inputs, while a pull-up to 12 V drives relay coils or opto-isolator inputs directly. Open-drain outputs also support wired-OR connections for multi-comparator threshold detection across 2 channels.
What is the maximum supply voltage the TSX393IST can handle, and how does this expand application flexibility?
The TSX393IST operates from supply voltages up to 16 V, covering single-supply 12 V industrial systems as well as 3 V to 5 V embedded electronics. This range allows the same device to serve in automotive-adjacent applications at 12 V, industrial sensor conditioning at 5 V, and battery-powered IoT systems at 3 V, eliminating the need for different comparator parts across product families.
How accurate is the TSX393IST threshold detection, and what input offset budget should designers plan for?
The TSX393IST specifies a maximum input offset voltage of 6 mV (6000 µV), meaning the threshold detection point may deviate up to 6 mV from the programmed trip point. For a window comparator with a 100 mV hysteresis window, this 6 mV offset represents 6% uncertainty, which is acceptable for most power-good and overvoltage detection applications but should be factored into tight threshold budgets.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.3800 | $1.38 |
| 100+ | $0.6300 | $63.00 |
| 250+ | $0.6100 | $152.50 |
| 500+ | $0.5900 | $295.00 |
In Stock · 24h Response · Worldwide Shipping
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