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STMicroelectronics TS332IYDT
- Part No.:
- TS332IYDT
- Manufacturer:
- STMicroelectronics
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS332IYDT.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:5,665
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Product details
Overview
TS332IYDT from STMicroelectronics is a dual micropower, rail-to-rail input comparator with open-drain output, operating from 1.6 V to 5 V supply and consuming only 20 µA typical supply current. It features 210 ns propagation delay (high-to-low), ±5 mV input offset voltage, and -40 °C to +125 °C temperature range-designed for battery-powered voltage monitoring in portable medical sensors.
For engineers reviewing the TS332IYDT datasheet, TS332IYDT pinout, TS332IYDT application, or TS332IYDT equivalent, this device is selected for ultra-low-power threshold detection where rail-to-rail input common-mode range, sub-1 µA quiescent current scalability, and automotive-grade thermal stability are critical.
Technical Context
The TS332IYDT integrates two independent comparators sharing a common supply domain, each with rail-to-rail input stage enabling full-supply-range sensing down to 1.6 V. Its open-drain outputs support wired-OR logic and flexible pull-up configuration across mixed-voltage systems.
Propagation delay is characterized at 210 ns (TPHL) under 100 mV overdrive with 5.1 kΩ load and 50 pF capacitance, while input bias current remains below 40 nA across -40 °C to +125 °C-enabling high-impedance sensor interface without significant loading error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6 V to 5.0 V - supports single-cell Li-ion, 2xAA, and 3.3 V/5 V system rails without level-shifting. |
| Quiescent Current | 20 µA typical per comparator - enables multi-year operation on coin-cell batteries in always-on wake-up circuits. |
| Input Offset Voltage | ±5 mV max at 25 °C - ensures reliable detection of small differential signals (e.g., thermistor or battery cell voltage deltas). |
| Propagation Delay | 210 ns (TPHL) at 100 mV overdrive - provides timely response for fast fault detection in power sequencing or overvoltage lockout. |
| Input Common-Mode Range | Rail-to-rail (VCC− to VCC+) - allows direct interface with sensors operating at ground or near-VCC without external biasing. |
| Output Type | Open-drain - enables shared-bus signaling, level translation, and compatibility with I²C-style interrupt lines. |
| ESD Rating | 2 kV HBM - meets industrial handling requirements without additional protection circuitry. |
Pinout & Package
TS332IYDT is housed in an SO8 package (8-pin small outline integrated circuit), measuring 4.9 mm × 6.0 mm × 1.75 mm, with standard 1.27 mm lead pitch and gull-wing leads suitable for reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Comparator 1 output | Open-drain NMOS drain - requires external pull-up; sinks up to 22 mA at 2.7 V for direct LED or logic-level drive. |
| 2 (IN1−) | Inverting input of COMP1 | Differential sensing node - accepts rail-to-rail voltages; high-impedance (40 nA max IB) minimizes source loading. |
| 3 (IN1+) | Non-inverting input of COMP1 | Reference or signal input - identical electrical characteristics to IN1−; supports hysteresis via feedback resistor. |
| 4 (VCC−) | Negative supply / ground | Power return path - must be low-impedance; shares reference for both comparators and internal bias network. |
| 5 (IN2+) | Non-inverting input of COMP2 | Independent signal input - electrically isolated from COMP1 inputs; enables dual-threshold or window-comparator topologies. |
| 6 (IN2−) | Inverting input of COMP2 | Second differential pair input - same rail-to-rail range and bias current as IN1±; supports independent reference setup. |
| 7 (OUT2) | Comparator 2 output | Second open-drain output - independently controllable; allows separate interrupt flags or OR'd fault reporting. |
| 8 (VCC+) | Positive supply | Single supply rail - powers both comparators and internal bias; regulated 1.6–5.0 V operation eliminates need for split supplies. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower operation | 20 µA per comparator enables >10-year battery life in coin-cell–powered IoT endpoint monitors. |
| Rail-to-rail inputs | Full VCC− to VCC+ common-mode range eliminates input bias resistors when interfacing with grounded sensors or DACs. |
| Automotive qualification | AEC-Q100 Grade 1 rating (−40 °C to +125 °C) ensures reliability in engine control, ADAS power management, and infotainment subsystems. |
| Low propagation delay | 210 ns TPHL at 100 mV overdrive supports real-time overcurrent detection in DC-DC converter protection loops. |
| Open-drain outputs | Wired-OR capability allows multiple TS332IYDT devices to share a single interrupt line without contention or level-shifter ICs. |
Applications
| Battery Voltage Monitor | Portable Medical Sensor |
|---|---|
Use Scenario: Detecting low-battery condition in wearable ECG patch before shutdown. IC Role / Device Role / Timing Role: Dual comparator configured as window detector comparing battery voltage against upper/lower thresholds. Use Value: 20 µA total quiescent current extends runtime by >30% versus legacy comparators, while rail-to-rail inputs eliminate external voltage dividers. |
Use Scenario: Threshold-triggered alert for abnormal SpO₂ sensor output drift. IC Role / Device Role / Timing Role: Comparator 1 monitors analog sensor output; Comparator 2 validates reference stability via ratiometric check. Use Value: −40 °C to +125 °C operation ensures consistent trip points across body-worn temperature gradients without calibration drift. |
| Power Sequencing Controller | Industrial PLC Input Module |
Use Scenario: Validating correct ramp-up order of 1.8 V, 3.3 V, and 5 V rails in FPGA-based edge AI gateway. IC Role / Device Role / Timing Role: Each comparator verifies individual rail presence before enabling next-stage regulator enable signal. Use Value: 210 ns propagation delay ensures sub-microsecond response to rail collapse, preventing FPGA configuration corruption during brownout. |
Use Scenario: Digital input conditioning for 24 V dry-contact signals in factory automation controller. IC Role / Device Role / Timing Role: Comparator 1 converts 24 V field signal to 3.3 V logic; Comparator 2 provides noise-immune hysteresis via feedback. Use Value: Open-drain outputs interface directly with optocoupler LEDs; 2 kV HBM ESD rating withstands industrial EMI without external TVS diodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV393QDRQ1 | Higher supply current (38 µA), wider offset (±7 mV), no rail-to-rail inputs - requires input biasing above VCC− + 0.2 V. | Suitable for cost-sensitive automotive modules where 1.6 V operation is not required. | Select when AEC-Q100 compliance is needed but ultra-low IQ is secondary to BOM cost. |
| TLV3702IDR | Lower IQ (1 µA), rail-to-rail inputs, but only 125 °C max operating temperature and no automotive qualification. | Fits consumer wearables requiring longest battery life but lacking extended temperature or qualification needs. | Choose for battery-constrained non-automotive designs where 125 °C ambient is sufficient and qualification is not mandated. |
Compared with LMV393QDRQ1 and TLV3702IDR, TS332IYDT uniquely balances automotive qualification, 1.6 V operation, rail-to-rail inputs, and 20 µA IQ - making it optimal for safety-critical, low-voltage, wide-temperature embedded systems where all four attributes are simultaneously required.
Availability
TS332IYDT is available at Aetrix Electronics and suitable for battery voltage monitoring, portable medical sensors, power sequencing controllers, and industrial PLC input modules requiring stable component supply across automotive and industrial lifecycles.
Supply support for TS332IYDT 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 mobility, power, and sensing applications.
The TS33x series was developed specifically for ultra-low-power, high-accuracy threshold detection in space-constrained, battery-operated, and automotive-qualified systems - emphasizing rail-to-rail input flexibility and robustness across extreme temperatures.
FAQ
What is the maximum sink current capability of TS332IYDT at 1.8 V supply?
At VCC = 1.8 V and Tamb = 25 °C, TS332IYDT delivers a minimum sink current of 20 mA when output voltage is clamped to 30 mV. This is verified per Table 3 (VCC = 1.8 V) and supports direct driving of low-current LEDs or logic-level MOSFET gates without external buffers.
Can TS332IYDT operate with a single 1.6 V alkaline cell?
Yes - TS332IYDT is fully specified down to 1.6 V supply voltage, with guaranteed functionality including rail-to-rail input range, 210 ns propagation delay, and 20 µA supply current. It maintains stable operation even as the cell discharges from 1.6 V to 1.0 V, though output swing and speed degrade gradually beyond datasheet minima.
Does TS332IYDT require external hysteresis resistors?
No - hysteresis can be implemented externally using positive feedback from OUTx to INx+, but the device itself contains no internal hysteresis. The datasheet provides design guidance for calculating resistor values to achieve desired hysteresis voltage based on output low voltage (VOL) and sink current (ISINK) specifications.
Is the SO8 package of TS332IYDT lead-free and RoHS compliant?
Yes - TS332IYDT in SO8 packaging carries ECOPACK2 certification, meeting RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Lead finish is matte tin, and the package uses halogen-free molding compound per ST's environmental compliance documentation.
TS332IYDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Open-Drain
- Voltage - Supply, Single/Dual (±):
- 1.6V ~ 5V
- :
- 5mV @ 5V
- Voltage - Input Offset (Max):
- 0.04µA @ 5V
- Current - Input Bias (Max):
- 93mA @ 5V
- Current - Output (Typ):
- 26µA
- Current - Quiescent (Max):
- 79dB CMRR
- CMRR, PSRR (Typ):
- 720ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- Automotive
- Grade:
- AEC-Q100
- Qualification:
- Surface Mount
- :
- 8-SOIC
TS332IYDT FAQ
1.How can I place an order for TS332IYDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS332IYDT 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 TS332IYDT reliable?
The price and inventory of TS332IYDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS332IYDT is usually 5 days.
3.What payment methods are accepted for TS332IYDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS332IYDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS332IYDT?
TS332IYDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS332IYDT 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 TS332IYDT?
For technical support, including TS332IYDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS332IYDT requirements.
6.How does Aetrix verify that TS332IYDT is sourced from the original manufacturer or authorized distributors?
All TS332IYDT 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 TS332IYDT meets industry standards.
7.What is the process for return or replacement of TS332IYDT?
All TS332IYDT units undergo pre-shipment inspection (PSI). If there is an issue with TS332IYDT, 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 TS332IYDT part is unused and in its original packaging.
Return procedure for TS332IYDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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