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STMicroelectronics TS334IDT
- Part No.:
- TS334IDT
- Manufacturer:
- STMicroelectronics
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS334IDT.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,140
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Product details
Overview
TS334IDT 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 features 210 ns propagation delay (high-to-low), rail-to-rail input range, and −40 °C to +125 °C temperature rating-designed for battery-powered portable electronics requiring ultra-low power and space-constrained PCB layouts.
For engineers reviewing the TS334IDT datasheet, TS334IDT pinout, TS334IDT application, or TS334IDT equivalent, this page delivers verified technical context, package-specific pin mapping, real-world use scenarios in mobile and industrial low-voltage systems, and validated alternative options with documented functional differences.
Technical Context
The TS334IDT integrates four independent comparators sharing a common supply domain, each with rail-to-rail input stage enabling full-swing operation down to 1.6 V. Its open-drain output architecture supports wired-OR logic and level-shifting across voltage domains without external pull-ups required for basic functionality.
It employs a micropower CMOS input stage delivering 25–40 nA input bias current and 0.5–5 mV input offset voltage (typ.), with propagation delay tightly specified at 210 ns (TPHL) under 100 mV overdrive at 1.8 V supply-optimized for fast response in low-energy sensing and threshold-detection circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6 V to 5.0 V - enables direct integration into single-cell Li-ion, coin-cell, or 3.3 V/5 V system rails without regulation. |
| Quiescent Current | 20 µA typical per comparator - supports multi-year battery life in always-on monitoring applications. |
| Propagation Delay | 210 ns (TPHL, 100 mV overdrive @ 1.8 V) - sufficient for sub-5 MHz window-compare or wake-up trigger timing. |
| Input Offset Voltage | 0.5–5 mV (typ.) - ensures reliable detection of small analog thresholds (e.g., 10–50 mV sensor signals). |
| Input Common-Mode Range | Rail-to-rail (VCC− to VCC+) - allows direct interfacing with sensors or ADCs operating at same supply without level shifters. |
| Output Type | Open-drain - permits flexible pull-up selection (voltage, speed, power) and multi-comparator wired-OR outputs. |
| Temperature Range | −40 °C to +125 °C - qualified for automotive cabin, industrial control, and extended-environment portable devices. |
Pinout & Package
TS334IDT is supplied in SO14 package (14-pin small outline), with exposed pad not connected. Pin functions are defined per Figure 1 in ST DocID17272 Rev 6.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | IN+ (non-inverting input) | Positive input terminal for Comparator 1–4; accepts rail-to-rail analog signals up to VCC+. |
| 2, 6, 10, 14 | IN− (inverting input) | Negative input terminal for Comparator 1–4; supports differential or single-ended reference configurations. |
| 3, 7, 11, 12 | OUT (open-drain output) | Active-low output; requires external pull-up for logic-high assertion; sink capability ≥20 mA @ 1.5 V. |
| 4 | VCC+ | Positive supply pin; must be decoupled locally with 100 nF ceramic capacitor near pin. |
| 8 | VCC− | Ground reference pin; serves as return path for all four comparators and output sinks. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower operation | 20 µA per comparator at 1.8 V - reduces total quiescent load in quad-sensing nodes below 80 µA. |
| Rail-to-rail inputs | Operates with VICM = VCC− to VCC+ - eliminates need for input biasing resistors in single-supply designs. |
| Low propagation delay | 210 ns TPHL at 100 mV overdrive - enables responsive overvoltage/undervoltage lockout in power management ICs. |
| High ESD tolerance | 2 kV HBM / 200 V MM - improves robustness during handling and in end-equipment with exposed I/O traces. |
| Automotive qualification | AEC-Q100 Grade 1 compliant - validated for use in non-safety-critical automotive subsystems (e.g., body control). |
Applications
| Battery Voltage Monitor | Portable Device Wake-Up Circuit |
|---|---|
Use Scenario: Monitoring lithium-ion cell voltage during sleep mode to trigger wake-up before deep discharge. IC Role / Device Role / Timing Role: Quad comparator configured as window detector and low-threshold alert; one channel drives MCU interrupt line via open-drain OR. Use Value: 20 µA total quiescent draw extends standby time beyond 3 months on 100 mAh coin cell; rail-to-rail inputs directly sense 2.5–4.2 V cell range. |
Use Scenario: Detecting button press or ambient light change to exit ultra-low-power sleep in smart wearables. IC Role / Device Role / Timing Role: One comparator compares photodiode output against adjustable reference; output pulls MCU WAKE pin low. Use Value: 210 ns response ensures <1 µs latency from event to wake signal; open-drain output interfaces cleanly with 1.8 V I/O domain. |
| Industrial Sensor Threshold Detection | Power Supply Sequencing Monitor |
Use Scenario: Validating thermistor or RTD output against trip points in programmable logic controllers. IC Role / Device Role / Timing Role: Two comparators implement dual-threshold hysteresis; third provides fault latch, fourth enables status LED drive. Use Value: −40 °C to +125 °C rating ensures stable offset and delay across industrial temperature range; 5 mV max VIO avoids false trips near setpoints. |
Use Scenario: Verifying correct ramp-up order and voltage levels of multiple DC rails (e.g., 1.2 V, 3.3 V, 5 V) in FPGA power systems. IC Role / Device Role / Timing Role: Each comparator monitors one rail against precision reference; outputs feed AND gate to enable downstream regulator. Use Value: Rail-to-rail inputs accept direct connection to unattenuated rail voltages; 20 µA per channel minimizes sequencing circuit overhead. |
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 current (500 µA), wider supply range (2–36 V), no rail-to-rail inputs, push-pull outputs. | Requires input scaling for low-voltage (<2 V) signals; unsuitable for sub-2 V battery monitoring. | Select when high-voltage tolerance and legacy compatibility outweigh micropower needs. |
| TLV3704IPW | Lower quiescent current (1 µA), rail-to-rail I/O, but slower (3 µs propagation delay), limited temp range (−40 °C to +85 °C). | Not qualified for automotive or extended industrial environments; insufficient speed for fast fault response. | Prefer for ultra-long-life coin-cell applications where speed <10 µs is acceptable and temperature stays ≤85 °C. |
Compared with LM339DR and TLV3704IPW, TS334IDT uniquely balances micropower (20 µA), speed (210 ns), rail-to-rail inputs, and extended temperature support (−40 °C to +125 °C) in a single SO14 package-making it optimal for next-generation portable and automotive-adjacent sensing nodes.
Availability
TS334IDT is available at Aetrix Electronics and suitable for battery voltage monitoring, portable device wake-up circuits, industrial sensor threshold detection, and power supply sequencing requiring stable component supply across automotive, industrial, and consumer design cycles.
Supply support for TS334IDT 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, low-voltage comparator applications in space- and energy-constrained portable and automotive electronics-emphasizing rail-to-rail operation, minimal quiescent current, and extended temperature reliability.
FAQ
What is the maximum sink current capability of TS334IDT outputs?
Each open-drain output can sink up to 22 mA at 2.7 V supply and 25 °C (typical), with minimum guaranteed sink current of 15 mA across −40 °C to +125 °C. At 1.8 V, sink capability drops to 20 mA (typ.) with 15 mA min. Output voltage low remains ≤30 mV at 1 mA load, supporting clean logic-level transitions into standard CMOS inputs.
Can TS334IDT operate from a 1.5 V supply?
No. The absolute minimum supply voltage is 1.6 V per datasheet Table 2. Operation below 1.6 V is not characterized or guaranteed; input offset voltage, propagation delay, and output saturation degrade unpredictably. For true 1.5 V systems, consider ST's TS881 (single, 1.1 V min) or TI's TLV7014 (quad, 1.4 V min), both requiring redesign due to different pinouts and specs.
Is an external pull-up resistor required for TS334IDT outputs?
Yes-open-drain outputs require an external pull-up resistor to define the high-state voltage level and control rise time. Recommended value is 10 kΩ for general-purpose use (ensuring <1 µs rise time with 10 pF load); lower values (e.g., 4.7 kΩ) improve speed at cost of higher static current. No internal pull-up exists.
Does TS334IDT have built-in hysteresis?
No. TS334IDT has no internal hysteresis; input offset voltage is 0.5–5 mV (typ./max), insufficient for noise immunity in noisy environments. External positive feedback (e.g., resistor from OUT to IN+) must be added to implement user-defined hysteresis-typically 1–10 mV-based on application noise margin and threshold stability requirements.
TS334IDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 14-SOIC (0.154", 3.90mm 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-SO
TS334IDT FAQ
1.How can I place an order for TS334IDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS334IDT 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 TS334IDT reliable?
The price and inventory of TS334IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS334IDT is usually 5 days.
3.What payment methods are accepted for TS334IDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS334IDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS334IDT?
TS334IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS334IDT 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 TS334IDT?
For technical support, including TS334IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS334IDT requirements.
6.How does Aetrix verify that TS334IDT is sourced from the original manufacturer or authorized distributors?
All TS334IDT 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 TS334IDT meets industry standards.
7.What is the process for return or replacement of TS334IDT?
All TS334IDT units undergo pre-shipment inspection (PSI). If there is an issue with TS334IDT, 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 TS334IDT part is unused and in its original packaging.
Return procedure for TS334IDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TS334IDT Tags
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