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STMicroelectronics TS334IYDT
- Part No.:
- TS334IYDT
- Manufacturer:
- STMicroelectronics
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS334IYDT.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,786
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Product details
Overview
TS334IYDT from STMicroelectronics is a quad micropower, rail-to-rail input comparator with open-drain outputs, 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 operates across –40 °C to +125 °C - enabling use in battery-powered portable electronics requiring low-voltage precision threshold detection.
For engineers reviewing the TS334IYDT datasheet, TS334IYDT pinout, TS334IYDT application, or TS334IYDT equivalent, this device is selected for ultra-low-power, space-constrained designs where rail-to-rail input common-mode range, sub-µA quiescent current scalability, and automotive-grade temperature performance are critical selection criteria.
Technical Context
The TS334IYDT integrates four independent comparators sharing a common supply domain, each with rail-to-rail input stage enabling full-supply-range signal monitoring down to 1.6 V. Its open-drain output architecture supports wired-OR logic and flexible pull-up voltage selection independent of VCC.
Designed for micropower operation, it achieves 20 µA typical ICC across 1.6–5 V supply while maintaining 210 ns TPHL at 100 mV overdrive and 50 dB+ CMRR - making it suitable for high-accuracy, low-noise sensing in thermally demanding environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6 V to 5.0 V - supports direct integration into single-cell Li-ion, coin-cell, and 3.3 V/5 V systems without level-shifting. |
| Quiescent Current | 20 µA typical - enables multi-year battery life in always-on sensor monitoring circuits. |
| Propagation Delay | 210 ns (TPHL, 100 mV overdrive) - sufficient for fast edge detection in power sequencing and fault flag generation. |
| Input Offset Voltage | ±5 mV max at 25 °C - ensures reliable threshold discrimination at low differential voltages in precision analog front-ends. |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive, industrial control, and extended-life portable equipment. |
| Output Type | Open-drain - allows shared bus signaling, mixed-voltage interfacing, and programmable pull-up configuration. |
| ESD Rating | 2 kV HBM - provides robust handling during PCB assembly and field operation in handheld devices. |
Pinout & Package
TS334IYDT is supplied in a DFN8 2x2 mm, 0.5 mm pitch, wettable flank package (ECOPACK® compliant). This 8-pin, leadless, surface-mount package supports automated optical inspection (AOI) and offers improved solder joint reliability in high-volume manufacturing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN1+ | Non-inverting input of Comparator 1 - accepts rail-to-rail analog signals up to VCC. |
| 2 | IN1− | Inverting input of Comparator 1 - used with IN1+ to define threshold or window detection. |
| 3 | OUT1 | Open-drain output of Comparator 1 - requires external pull-up; sinks up to 22 mA at 2.7 V. |
| 4 | VCC− | Negative supply terminal (GND reference) - common return for all comparators and outputs. |
| 5 | IN2+ | Non-inverting input of Comparator 2 - electrically isolated but shares VCC− and VCC+ rails. |
| 6 | IN2− | Inverting input of Comparator 2 - supports independent dual-threshold configuration per channel. |
| 7 | OUT2 | Open-drain output of Comparator 2 - compatible with 1.8–5 V pull-up domains. |
| 8 | VCC+ | Positive supply terminal - powers all four comparators; decoupling capacitor recommended near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Enables accurate comparison of signals from 0 V to VCC, eliminating need for input biasing networks in low-voltage systems. |
| 20 µA typical supply current | Reduces system-level power budget by >90% versus standard comparators, critical for energy harvesting and wearable sensors. |
| 210 ns propagation delay | Supports real-time response in battery fuel gauging, overvoltage lockout, and motor stall detection circuits. |
| Automotive qualification | Meets AEC-Q100 Grade 1 requirements - validated for use in infotainment, ADAS sensor interfaces, and body electronics. |
| DFN8 2×2 wettable flank package | Enables AOI-compatible assembly and improves thermal dissipation vs. SOIC alternatives in dense PCB layouts. |
Applications
| Battery Voltage Monitor | Portable Device Power Sequencing |
|---|---|
Use Scenario: Monitoring lithium-ion cell voltage during charge/discharge cycles in Bluetooth earbuds. IC Role / Device Role / Timing Role: Quad comparator independently monitors under-voltage lockout (UVLO), over-voltage protection (OVP), charging status, and thermal fault thresholds. Use Value: Single TS334IYDT replaces four discrete comparators, reducing BOM count and PCB area while maintaining <10 µA total standby current. |
Use Scenario: Enabling controlled power-up sequence for microcontroller, display driver, and RF transceiver in smartwatches. IC Role / Device Role / Timing Role: Configured as window comparator and delay-triggered enable logic to enforce strict voltage ramp timing between subsystems. Use Value: Rail-to-rail inputs ensure accurate tracking of 1.2 V core and 3.3 V I/O rails without external resistive dividers. |
| Industrial Sensor Interface | Automotive Cabin Temperature Control |
Use Scenario: Converting analog outputs from RTD or thermistor-based temperature sensors into digital alerts in PLC I/O modules. IC Role / Device Role / Timing Role: Each comparator channels dedicated to high/low alarm thresholds and sensor fault detection (open/short circuit). Use Value: –40 °C to +125 °C operation and 5 mV offset guarantee consistent trip points across environmental stress testing. |
Use Scenario: Detecting HVAC actuator position limits and cabin ambient temperature bands in automotive climate control units. IC Role / Device Role / Timing Role: Used in hysteresis-based thermostat logic and motor end-stop detection with integrated ESD protection. Use Value: 2 kV HBM rating eliminates need for external TVS diodes on sensor lines routed through vehicle harnesses. |
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 VCC range (2–36 V), no rail-to-rail inputs, SO14 package. | Suitable for industrial 24 V systems but incompatible with sub-2 V battery monitoring due to input range limitation. | Select when higher supply voltage tolerance and legacy SOIC footprint are required over micropower optimization. |
| TLV3704IPW | Lower ICC (1 µA), rail-to-rail inputs/outputs, but only rated to +85 °C and lacks automotive qualification. | Valid for consumer wearables but not for under-dash automotive or extended-temperature industrial deployments. | Choose for ultra-low-power consumer devices where AEC-Q100 compliance and 125 °C operation are unnecessary. |
Compared with LM339DR and TLV3704IPW, TS334IYDT uniquely balances automotive-grade temperature range, rail-to-rail input capability, and 20 µA quiescent current - making it the only option qualified for safety-critical, low-voltage, high-reliability embedded sensing.
Availability
TS334IYDT is available at Aetrix Electronics and suitable for battery management systems, portable medical monitors, and automotive cabin electronics requiring stable component supply across long production lifecycles.
Supply support for TS334IYDT 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 automotive, industrial, and consumer markets since 1987.
The TS33x series was developed specifically for ultra-low-power, high-accuracy analog sensing in space- and energy-constrained applications - emphasizing rail-to-rail operation, wide temperature resilience, and compact packaging.
FAQ
What is the maximum sink current capability of TS334IYDT at 1.8 V supply?
At VCC = 1.8 V and Tamb = 25 °C, TS334IYDT delivers a minimum sink current of 20 mA with VOL ≤ 30 mV at ISINK = 1 mA. Full sink capability degrades with lower supply voltage; at 1.8 V, ISINK drops to ~22 mA before VOL exceeds 100 mV - verified per Table 3 in the official datasheet (DocID17272 Rev 6).
Can TS334IYDT operate with a single 1.6 V supply?
Yes - TS334IYDT is fully specified from 1.6 V to 5.0 V. At 1.6 V, it maintains rail-to-rail input operation, 20 µA typical ICC, and functional open-drain outputs. Propagation delay increases to 380 ns (TPHL) at 100 mV overdrive, as confirmed in Table 5 and Figure 15 of the datasheet.
Is the DFN8 2x2 wettable flank package of TS334IYDT compatible with standard reflow profiles?
Yes - the TS334IYDT's DFN8 2x2 wettable flank package complies with IPC/JEDEC J-STD-020 moisture sensitivity level 3 and supports standard lead-free reflow profiles (peak 260 °C, 10 s). Its wettable flanks enable reliable solder fillet formation for automated optical inspection, as documented in ST's package drawing AN4969.
Does TS334IYDT include internal hysteresis?
No - TS334IYDT has no internal hysteresis. Each comparator channel requires external positive feedback (e.g., resistor network between OUT and IN+) to implement user-defined hysteresis. Typical values range from 100 kΩ to 10 MΩ depending on desired threshold separation and input impedance constraints.
TS334IYDT 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:
- Automotive
- Grade:
- AEC-Q100
- Qualification:
- Surface Mount
- :
- 14-SO
TS334IYDT FAQ
1.How can I place an order for TS334IYDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS334IYDT 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 TS334IYDT reliable?
The price and inventory of TS334IYDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS334IYDT is usually 5 days.
3.What payment methods are accepted for TS334IYDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS334IYDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS334IYDT?
TS334IYDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS334IYDT 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 TS334IYDT?
For technical support, including TS334IYDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS334IYDT requirements.
6.How does Aetrix verify that TS334IYDT is sourced from the original manufacturer or authorized distributors?
All TS334IYDT 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 TS334IYDT meets industry standards.
7.What is the process for return or replacement of TS334IYDT?
All TS334IYDT units undergo pre-shipment inspection (PSI). If there is an issue with TS334IYDT, 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 TS334IYDT part is unused and in its original packaging.
Return procedure for TS334IYDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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