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STMicroelectronics TS334IPT
- Part No.:
- TS334IPT
- Manufacturer:
- STMicroelectronics
- Category:
- Comparators
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TS334IPT.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,775
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Product details
Overview
TS334IPT from STMicroelectronics is a quad micropower, rail-to-rail input comparator with open-drain outputs, operating from 1.6 V to 5.0 V supply and consuming only 20 µA typical supply current. It delivers 210 ns propagation delay (TPHL) at 100 mV overdrive, supports -40 °C to +125 °C ambient operation, and features low 24 mV output saturation voltage (VOL) at 1 mA sink load - enabling precise low-voltage threshold detection in battery-powered sensor interfaces.
For engineers reviewing the TS334IPT datasheet, TS334IPT pinout, TS334IPT application, or TS334IPT equivalent, this device is selected for ultra-low-power, space-constrained analog monitoring where rail-to-rail input range, automotive-grade temperature tolerance, and fast open-drain response are required - especially in portable medical sensors, smart battery management, and industrial IoT node comparators.
Technical Context
The TS334IPT integrates four independent comparators sharing a common supply domain, each with rail-to-rail input stage capable of accepting signals from VCC− to VCC+, and an open-drain output stage compatible with mixed-voltage logic pull-ups. Its internal architecture minimizes input offset drift (1.3 µV/°C typ. at 5 V) and maintains stable propagation delay across supply (210–270 ns TPHL) and temperature (-40 °C to +125 °C).
It uses CMOS input transistors with 25–40 nA typical input bias current and achieves 58–79 dB common-mode rejection ratio (CMRR) depending on supply voltage, supporting accurate differential sensing in noisy environments without external hysteresis in many cases.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6 V to 5.0 V - enables direct operation from single Li-ion, coin cell, or 3.3 V/5 V system rails without regulation. |
| Quiescent Current | 20 µA typical per comparator - allows four-channel comparison in sub-100 µA total system standby budget. |
| Propagation Delay (TPHL) | 210 ns at 100 mV overdrive, 1.8 V supply - ensures timely response for fast edge-detection in wake-up circuits. |
| Input Offset Voltage | 0.5–5 mV typical - supports accurate threshold setting down to ~10 mV resolution in precision window detectors. |
| Output Sink Current | 22 mA minimum at 2.7 V - drives standard LED indicators or logic-level MOSFET gates directly without buffer. |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive, industrial control, and extended-life portable equipment. |
| Rail-to-Rail Inputs | Valid common-mode range from VCC− to VCC+ - eliminates need for level-shifting when interfacing with low-voltage ADCs or sensors. |
Pinout & Package
TS334IPT is supplied in the TSSOP14 package (14-lead thin shrink small outline), measuring 5.0 mm × 4.4 mm × 1.2 mm, with 0.65 mm lead pitch and wettable flank capability for automated optical inspection (AOI) of solder joints.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN1− | Inverting input of comparator 1 - accepts reference or feedback signal for threshold comparison. |
| 2 | IN1+ | Non-inverting input of comparator 1 - connects to sensed analog signal (e.g., battery voltage divider). |
| 3 | OUT1 | Open-drain output of comparator 1 - requires external pull-up; sinks current when IN1+ > IN1−. |
| 4 | VCC− | Negative supply rail (GND for single-supply use) - common return for all four comparators. |
| 5 | IN2− | Inverting input of comparator 2 - independently configurable for dual-threshold or hysteresis networks. |
| 6 | IN2+ | Non-inverting input of comparator 2 - supports separate signal path (e.g., temperature vs. voltage monitoring). |
| 7 | OUT2 | Open-drain output of comparator 2 - electrically isolated from OUT1; enables OR-wired alarm outputs. |
| 8 | OUT3 | Open-drain output of comparator 3 - shares VCC− and VCC+ with other channels; no internal cross-talk. |
| 9 | IN3− | Inverting input of comparator 3 - usable for third independent condition (e.g., overcurrent flag). |
| 10 | IN3+ | Non-inverting input of comparator 3 - routed separately to avoid coupling with IN1/IN2 nets. |
| 11 | VCC+ | Positive supply rail - powers all four comparators; decoupling capacitor recommended at pin. |
| 12 | IN4− | Inverting input of comparator 4 - completes quad functionality for multi-zone monitoring systems. |
| 13 | IN4+ | Non-inverting input of comparator 4 - supports fourth independent analog input (e.g., humidity sensor output). |
| 14 | OUT4 | Open-drain output of comparator 4 - provides discrete alarm or enable signal without loading other outputs. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower operation | 20 µA per comparator enables 4-channel monitoring within 80 µA total - critical for >1-year coin-cell lifetime. |
| Rail-to-rail input stage | Supports full-supply-range signal acquisition (e.g., 0–1.8 V from MEMS sensor) without external biasing. |
| Automotive qualification | AEC-Q100 Grade 2 compliance confirmed - validated for 15-year reliability in harsh thermal cycling environments. |
| Low propagation delay variation | ±10% TPHL shift across -40 °C to +125 °C - ensures deterministic timing in safety-critical wake-up logic. |
| ESD robustness | 2 kV HBM / 200 V MM rating - withstands handling and board-level ESD events without latch-up or parameter shift. |
Applications
| Battery Voltage Monitor | Smart Sensor Interface |
|---|---|
|
Use Scenario: Real-time monitoring of Li-ion cell voltage during charging/discharging cycles in wearables. IC Role / Device Role / Timing Role: Quad comparator implements under-voltage lockout (UVLO), over-voltage protection (OVP), charge-complete flag, and thermal fault detection - each channel assigned to dedicated threshold. Use Value: Single TS334IPT replaces four discrete comparators and saves >3 mm² PCB area versus SOIC-14 alternatives while maintaining <100 µA system quiescent current. |
Use Scenario: Signal conditioning for analog-output environmental sensors (e.g., pressure, gas, humidity) in wireless nodes. IC Role / Device Role / Timing Role: Compares sensor output against programmable thresholds to generate digital alerts - rail-to-rail inputs accept 0–1.2 V sensor spans directly. Use Value: Eliminates need for op-amp level-shifters; 210 ns response enables rapid event capture (e.g., sudden pressure spike) before MCU wake-up. |
| Industrial PLC Input Module | Automotive Cabin Control |
|
Use Scenario: Digital conversion of 4–20 mA loop signals into discrete status bits for programmable logic controllers. IC Role / Device Role / Timing Role: Four comparators detect preset current thresholds (e.g., 4 mA = fault, 12 mA = nominal, 20 mA = max) using precision shunt resistors. Use Value: -40 °C to +125 °C operation ensures reliable performance inside metal enclosures; open-drain outputs interface directly with 24 V PLC backplane logic. |
Use Scenario: Occupancy detection and seatbelt reminder logic using capacitive proximity and switch inputs in automotive door modules. IC Role / Device Role / Timing Role: Monitors multiple analog sensor outputs (capacitance change, microswitch closure) to trigger CAN message generation via microcontroller. Use Value: AEC-Q100 qualification guarantees functional safety compliance; low ICC reduces heat buildup in sealed junction boxes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DR | Higher supply range (2–36 V), 1.3 mA ICC, no rail-to-rail inputs, slower (1.3 µs TPHL) | Requires level-shifting for sub-2 V sensors; unsuitable for coin-cell or energy-harvesting systems | Select only if wide supply range and high sink current (>16 mA) outweigh power and input-range limitations. |
| TLV3704IPW | Lower ICC (1 µA), rail-to-rail inputs, but only 125 °C max temp, non-automotive qualified | Lacks AEC-Q100 validation; not approved for under-hood or safety-critical cabin functions | Prefer for consumer portable devices where cost and ultra-low power dominate; avoid in automotive OEM designs. |
Compared with LM339DR and TLV3704IPW, TS334IPT uniquely balances automotive qualification, true rail-to-rail input operation below 2 V, and sub-100 µA quad-channel consumption - making it the only option meeting simultaneous requirements for battery longevity, sensor compatibility, and functional safety in compact embedded systems.
Availability
TS334IPT is available at Aetrix Electronics and suitable for battery management systems, portable medical monitors, and industrial sensor nodes requiring stable component supply across multi-year production cycles.
Supply support for TS334IPT 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 analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
The TS33x family was developed specifically for ultra-low-power, high-accuracy analog threshold detection in space- and energy-constrained applications - emphasizing rail-to-rail input fidelity, wide temperature resilience, and SMD package flexibility.
FAQ
Can TS334IPT operate from a 1.6 V coin cell without external regulation?
Yes. The TS334IPT is fully specified down to 1.6 V supply, with 20 µA typical ICC and functional rail-to-rail inputs at that voltage. Its 24 mV VOL at 1 mA sink ensures reliable logic-level output even at minimum supply - verified across -40 °C to +125 °C per datasheet Table 3.
Does TS334IPT require external hysteresis for noise immunity?
Not always. With typical input offset voltage of 0.5–5 mV and low input bias current (25–40 nA), the TS334IPT can often tolerate moderate noise without hysteresis. However, for signals with >10 mV peak-to-peak noise, a 10–100 kΩ feedback resistor from OUT to IN+ adds 1–10 mV hysteresis - confirmed in ST application note AN2867.
What is the maximum sink current per output at 125 °C?
At +125 °C and VCC = 2.7 V, the TS334IPT guarantees ≥30 mA sink current (ISINK) with VOL ≤ 50 mV at 1 mA load - per Table 4, "Electrical characteristics" under -40 °C to +125 °C conditions. Derating is minimal due to low thermal resistance (100 °C/W for TSSOP14).
Is the TSSOP14 package of TS334IPT compatible with standard reflow profiles?
Yes. The TS334IPT in TSSOP14 uses JEDEC-standard Pb-free (RoHS-compliant) terminations and is rated for peak reflow temperatures up to 260 °C (10 s), matching IPC/JEDEC J-STD-020D. Its wettable flank geometry also supports automated optical solder-joint inspection.
TS334IPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 4
- 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):
- 210ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-TSSOP
TS334IPT FAQ
1.How can I place an order for TS334IPT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS334IPT 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 TS334IPT reliable?
The price and inventory of TS334IPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS334IPT is usually 5 days.
3.What payment methods are accepted for TS334IPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS334IPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS334IPT?
TS334IPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS334IPT 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 TS334IPT?
For technical support, including TS334IPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS334IPT requirements.
6.How does Aetrix verify that TS334IPT is sourced from the original manufacturer or authorized distributors?
All TS334IPT 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 TS334IPT meets industry standards.
7.What is the process for return or replacement of TS334IPT?
All TS334IPT units undergo pre-shipment inspection (PSI). If there is an issue with TS334IPT, 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 TS334IPT part is unused and in its original packaging.
Return procedure for TS334IPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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