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STMicroelectronics TSX393IPT
- Part No.:
- TSX393IPT
- Manufacturer:
- STMicroelectronics
- Category:
- Comparators
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TSX393IPT.pdf
- Description:
- IC COMPARATOR 2 CMOS 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,449
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Product details
Overview
TSX393IPT from STMicroelectronics is a micropower CMOS dual voltage comparator with open-drain outputs, 5 µA typical supply current per comparator, 1 pA typical input bias current, and rail-to-rail input common-mode range including ground. It operates from 2.7 V to 16 V single supply (or ±1.35 V to ±8 V dual supply) and delivers 2.5 µs typical response time at 5 mV overdrive - used in automotive battery monitoring and industrial sensor signal conditioning circuits.
For engineers reviewing the TSX393IPT datasheet, TSX393IPT pinout, TSX393IPT application, or TSX393IPT equivalent, this page provides verified electrical parameters, package-specific terminal mapping for TSSOP8, automotive-grade temperature performance (-40 °C to +125 °C), and functional alternatives with documented output topology and ESD tolerance differences.
Technical Context
The TSX393IPT implements two independent high-impedance CMOS comparators with ESD-protected inputs (4 kV HBM), each featuring an open-drain output stage compatible with wired-OR logic and level-shifting interfaces. Its input stage uses MOSFET-based differential pairs enabling 10¹² Ω typical input impedance and input common-mode voltage down to ground.
It supports wide supply flexibility (2.7–16 V single supply) while maintaining stable propagation delay across voltage and temperature: tPLH/tPHL remain ≤2.8 µs at 5 mV overdrive from -40 °C to +125 °C, with input offset voltage tightly bounded at ±6 mV over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V single supply - enables direct interface with 3.3 V, 5 V, and 12 V systems without level shifters. |
| Input Bias Current | 1 pA typ. - allows high-impedance sensor interfacing (e.g., pH electrodes, photodiodes) without signal loading. |
| Response Time | 2.5 µs typ. at 5 mV overdrive - supports fast threshold detection in motor control feedback and overvoltage protection. |
| Input Common-Mode Range | 0 V to (VCC+ − 1.5 V) - includes ground reference, enabling direct sensing of signals referenced to system GND. |
| Output Type | Open-drain - permits flexible pull-up configuration, wired-OR combining, and mixed-voltage domain interfacing. |
| ESD Tolerance | 4 kV HBM - exceeds AEC-Q100 stress requirements for automotive under-hood applications. |
| Operating Temperature | -40 °C to +125 °C - qualified for automotive grade use per AEC-Q100, suitable for engine control and ADAS modules. |
Pinout & Package
TSSOP8 package (3.0 mm × 6.4 mm × 1.05 mm height), lead-free and RoHS-compliant, with exposed pad option not present in TSX393IPT variant per DS10633 Rev 5 mechanical data.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Open-drain output of comparator 1 - requires external pull-up; sinks up to 4 mA at <250 mV drop (VCC = 5 V). |
| 2 | IN1− | Inverting input of comparator 1 - high-impedance node (10¹² Ω); accepts voltages from −0.3 V to VCC+. |
| 3 | IN1+ | Non-inverting input of comparator 1 - same voltage range and impedance as IN1−; phase-reversal immune. |
| 4 | VCC− | Ground reference terminal - must be connected to system GND; serves as return path for both comparators. |
| 5 | VCC+ | Positive supply terminal - powers both comparators; supports 2.7–16 V operation with low quiescent current. |
| 6 | IN2− | Inverting input of comparator 2 - electrically identical to IN1−; enables dual-threshold or window detection. |
| 7 | IN2+ | Non-inverting input of comparator 2 - fully independent channel; shares VCC+/VCC− with comparator 1. |
| 8 | OUT2 | Open-drain output of comparator 2 - independently controllable; supports separate pull-up resistors per channel. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower Operation | 5 µA per comparator at 3 V - extends battery life in always-on automotive sensors and portable industrial monitors. |
| Rail-to-Rail Input Capability | Common-mode range includes 0 V - eliminates need for negative supply when monitoring ground-referenced signals. |
| Enhanced ESD Robustness | 4 kV HBM - exceeds standard industrial immunity and meets AEC-Q100 Class 2 requirements for automotive ECUs. |
| Low Input Offset Voltage | ±6 mV max over temperature - ensures accurate threshold detection in precision voltage monitoring (e.g., battery cell balancing). |
| Fast Propagation Delay | ≤2.8 µs at 5 mV overdrive - enables real-time fault response in overcurrent and overtemperature protection circuits. |
Applications
| Battery Cell Voltage Monitoring | Automotive Door Lock Control |
|---|---|
|
Use Scenario: Monitoring individual Li-ion cell voltages in 12 V automotive battery packs to detect overvoltage/undervoltage conditions. IC Role / Device Role / Timing Role: Dual comparator performs window comparison against upper/lower thresholds using shared reference and independent inputs. Use Value: 1 pA input bias avoids loading high-impedance voltage dividers; open-drain outputs interface directly with microcontroller GPIOs via single pull-up. |
Use Scenario: Detecting actuator position feedback in power door lock modules using Hall-effect sensor signals. IC Role / Device Role / Timing Role: Comparator converts analog Hall sensor output into clean digital enable/disable signals for solenoid drivers. Use Value: 2.5 µs response time ensures sub-millisecond lock/unlock timing; −40 °C to +125 °C rating matches under-dash environmental demands. |
| Industrial Temperature Sensor Interface | Programmable Logic Controller (PLC) Input Conditioning |
|
Use Scenario: Converting RTD or thermistor voltage outputs into binary high/low signals for fan speed control in HVAC controllers. IC Role / Device Role / Timing Role: Comparator compares sensor-derived voltage against programmable reference; output drives optocoupler input. Use Value: Rail-to-rail input allows direct connection to ratiometric sensor bridges; 5 µA supply current minimizes self-heating error. |
Use Scenario: Level-shifting and noise-immune signal conditioning for 24 V DC digital inputs in industrial PLC backplanes. IC Role / Device Role / Timing Role: Comparator acts as voltage translator between field-side 24 V signals and 3.3 V logic-level FPGA inputs. Use Value: Open-drain output pulls to 3.3 V via external resistor; 4 kV HBM protects against field-wiring ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual open-drain comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS393IPT | Higher ICC (8 µA typ. vs. 5 µA), lower ESD (2 kV HBM), same pinout and open-drain outputs. | Lacks AEC-Q100 qualification; limited to commercial temperature range (0 °C to +70 °C). | Select when cost sensitivity outweighs automotive qualification and ultra-low power needs. |
| TSX3702IPT | Push-pull outputs (not open-drain), 10 µA supply current, same 1 pA input bias and −40 °C to +125 °C rating. | Eliminates external pull-up resistors but prevents wired-OR and mixed-voltage interfacing. | Select when driving LEDs or logic inputs directly without level translation is required. |
Compared with TS393IPT and TSX3702IPT, TSX393IPT uniquely combines automotive qualification, lowest supply current, highest ESD robustness, and open-drain flexibility - making it optimal for safety-critical, battery-sensitive, and multi-rail industrial designs.
Availability
TSX393IPT is available at Aetrix Electronics and suitable for automotive battery management, industrial sensor signal conditioning, and PLC input interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSX393IPT 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing silicon solutions for smart driving, power management, and industrial automation.
The TSX393 belongs to ST's precision analog comparator product line, engineered specifically for ultra-low-power, high-reliability sensing in automotive and industrial environments where supply constraints and harsh operating conditions prevail.
FAQ
What is the maximum input voltage allowed on TSX393IPT pins when VCC+ = 3.3 V?
The absolute maximum input voltage is −0.3 V to 18 V per Table 1, independent of VCC+. At VCC+ = 3.3 V, inputs may safely exceed the supply by up to 14.7 V due to internal ESD diode clamping. Leakage remains below 250 nA at 125 °C, enabling robust overvoltage tolerance in noisy automotive environments.
Can TSX393IPT drive a 10 kΩ pull-up resistor to 5 V while maintaining logic-low voltage below 0.4 V?
Yes. At VCC+ = 5 V and IOL = 0.5 mA (corresponding to 10 kΩ pull-up), VOL is guaranteed ≤250 mV over temperature. With 0.5 mA sink current, output voltage stays well below 0.4 V, satisfying standard TTL and CMOS logic-low thresholds for reliable interfacing.
Does TSX393IPT support dual-supply operation with ±5 V rails?
Yes. The device supports dual supplies from ±1.35 V to ±8 V. With ±5 V, VCC+ = +5 V and VCC− = −5 V, enabling true bipolar input ranges from −5 V to +3.5 V (VCC+ − 1.5 V). This configuration is validated in Table 2 and used in precision instrumentation amplifier front-ends.
Is the TSX393IPT pinout compatible with TS393IPT in TSSOP8 packages?
Yes. Both devices share identical TSSOP8 pin assignments (OUT1, IN1−, IN1+, VCC−, VCC+, IN2−, IN2+, OUT2), confirmed in Figure 1 and Table 10 of DS10633. No PCB redesign is needed when upgrading from TS393IPT to TSX393IPT for improved power efficiency and ESD performance.
TSX393IPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- CMOS
- Number of Elements:
- 2
- Output Type:
- Open-Drain
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 16V, ±1.35V ~ 8V
- :
- 5mV
- Voltage - Input Offset (Max):
- 10pA
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 13µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-TSSOP
TSX393IPT FAQ
1.How can I place an order for TSX393IPT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSX393IPT 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 TSX393IPT reliable?
The price and inventory of TSX393IPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSX393IPT is usually 5 days.
3.What payment methods are accepted for TSX393IPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSX393IPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSX393IPT?
TSX393IPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSX393IPT 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 TSX393IPT?
For technical support, including TSX393IPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSX393IPT requirements.
6.How does Aetrix verify that TSX393IPT is sourced from the original manufacturer or authorized distributors?
All TSX393IPT 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 TSX393IPT meets industry standards.
7.What is the process for return or replacement of TSX393IPT?
All TSX393IPT units undergo pre-shipment inspection (PSI). If there is an issue with TSX393IPT, 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 TSX393IPT part is unused and in its original packaging.
Return procedure for TSX393IPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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