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STMicroelectronics TS339CD
- Part No.:
- TS339CD
- Manufacturer:
- STMicroelectronics
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS339CD.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,503
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Product details
Overview
TS339CD from STMicroelectronics is a micropower quad CMOS voltage comparator with 9 μA typical supply current per comparator, 2.7–16 V single-supply operation, 1 pA typical input bias current, and rail-to-rail input common-mode range including ground-used in battery-powered sensor monitoring and precision threshold detection circuits.
For engineers reviewing the TS339CD datasheet, TS339CD pinout, TS339CD application, or TS339CD equivalent, key selection criteria include ultra-low quiescent current, ground-sensing capability, CMOS push-pull output compatibility, and functional equivalence to LM339 in space-constrained industrial and portable systems.
Technical Context
The TS339CD implements four independent high-impedance CMOS comparators sharing a common supply domain. Each channel features 10¹² Ω typical input impedance and supports input voltages down to GND, enabling direct interfacing with resistive sensors and low-voltage reference sources without level-shifting.
Its 1.5 μs typical propagation delay (5 mV overdrive, CL = 50 pF) and 70–85 dB supply/common-mode rejection ratios ensure stable decision-making in noisy industrial environments where supply ripple and signal offset must be tightly controlled across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply current | 9 μA typ./comparator - enables multi-year operation on coin-cell batteries in always-on sensing nodes |
| Input bias current | 1 pA typ. - preserves accuracy in high-impedance divider networks (e.g., thermistor or photodiode interfaces) |
| Input common-mode range | 0 V to VCC–1.2 V - allows direct GND-referenced input sensing without external biasing |
| Response time | 1.5 μs low-to-high (5 mV overdrive) - supports kHz-level event detection in power management and fault monitoring |
| Output type | CMOS push-pull - eliminates need for external pull-up resistors, reducing BOM count and board area |
| Input offset voltage | 5 mV max. - ensures reliable 10 mV threshold discrimination in precision window comparators |
| ESD rating | HBM 50 V - meets basic handling requirements for non-automotive assembly lines |
Pinout & Package
TS339CD is supplied in a 14-pin SOIC (SO14) plastic micropackage, 8.55–8.75 mm × 5.8–6.2 mm body size, 1.27 mm lead pitch, with gull-wing leads and RoHS-compliant ECOPACK® construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 5, 6 | Inverting input (−) | Accepts reference or feedback signal; supports common-mode down to GND |
| 3, 4, 7, 8 | Non-inverting input (+) | Accepts sensed signal; matched bias current minimizes offset drift |
| 9, 10, 13, 14 | Output | CMOS push-pull - drives logic inputs directly; no external pull-up required |
| 11 | VCC+ | Positive supply pin - operates from 2.7 V to 16 V; decoupling capacitor recommended |
| 12 | VCC− / GND | Ground return - shared reference for all four comparators and outputs |
Key Features
| Feature | Design Value |
|---|---|
| Micropower operation | 9 μA/comparator enables >10-year battery life in wireless sensor nodes with 200 μAh coin cells |
| GND-sensing input stage | Input common-mode includes 0 V - eliminates level-shifters in battery voltage monitoring and zero-crossing detection |
| High input impedance | 10¹² Ω typical - prevents loading of high-Z sources like pH electrodes or capacitive touch sensors |
| Fast response with low overdrive | 1.5 μs at 5 mV overdrive - detects small signal excursions without requiring large hysteresis margins |
| Pin-compatible with LM339 | Direct drop-in replacement in legacy designs - retains existing PCB layout and bill-of-materials |
Applications
| Battery Voltage Monitor | Over-Temperature Protection |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage during charge/discharge cycles in portable medical devices. IC Role / Device Role / Timing Role: Quad comparator configures dual-threshold (UVLO/OVLO) and status flag outputs with hysteresis. Use Value: 9 μA/quiescent current extends runtime between charges; GND-referenced inputs simplify direct cell connection. | Use Scenario: Detecting thermal runaway in motor drive inverters using NTC thermistors. IC Role / Device Role / Timing Role: Compares thermistor voltage against precision references to trigger shutdown before critical junction temperature is reached. Use Value: 1 pA input bias avoids self-heating errors in high-resistance NTC strings; fast 1.5 μs response enables timely fault isolation. |
| Window Comparator | Zero-Crossing Detector |
Use Scenario: Validating analog sensor output stays within safe operating envelope in industrial process controllers. IC Role / Device Role / Timing Role: Two comparators form upper/lower thresholds; third generates enable signal when in-window, fourth provides fault latch. Use Value: CMOS push-pull outputs drive microcontroller GPIOs directly; rail-to-rail input allows full-scale sensor utilization without op-amp buffering. | Use Scenario: Synchronizing AC line sampling in smart energy meters using transformer-coupled signals. IC Role / Device Role / Timing Role: One comparator detects polarity transition of rectified AC waveform with minimal propagation delay variation. Use Value: Input common-mode range including GND permits direct coupling to center-tapped transformers; low offset (5 mV max.) reduces timing jitter at zero crossing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DR | Bipolar input stage; 2 mA supply current per comparator; open-collector outputs require pull-ups | Higher power dissipation limits use in battery-powered systems; slower response (1.3 μs min.) but higher ESD tolerance (2 kV HBM) | Select when legacy compatibility and robustness in noisy factory floors outweigh power savings |
| TS3704IDT | Same CMOS architecture; 10 μA supply current; identical SO14 package; push-pull output | Improved input offset (1.4 mV typ. vs. 5 mV max.) and faster response (0.7 μs tPLH); same pinout | Prefer for new designs requiring tighter threshold accuracy and sub-microsecond timing resolution |
Compared with LM339DR and TS3704IDT, TS339CD offers the lowest quiescent current among pin-compatible quad comparators while retaining GND-sensing capability-making it optimal for long-life portable instrumentation where supply headroom and board space are constrained.
Availability
TS339CD is available at Aetrix Electronics and suitable for battery-powered sensor nodes, industrial safety interlocks, and precision analog monitoring systems requiring stable component supply across extended production lifecycles.
Supply support for TS339CD 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, designing and manufacturing analog, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.
The TS339 belongs to ST's precision analog comparator product line, engineered specifically for ultra-low-power, ground-sensing applications in portable and energy-harvesting systems where traditional bipolar comparators fail to meet runtime targets.
FAQ
What is the maximum supply voltage for TS339CD?
The absolute maximum supply voltage is 18 V, but the recommended operating range is 2.7 V to 16 V for single-supply configurations. Exceeding 16 V risks exceeding internal junction temperature limits under load, especially in SO14 packages with 150 °C/W thermal resistance.
Does TS339CD support dual-supply operation?
Yes - it operates with dual supplies from ±1.35 V to ±8 V. The input common-mode range extends to within 1.2 V of each rail, allowing symmetric reference design. However, the SO14 package lacks dedicated VCC− and VCC+ pins; VCC− connects to pin 12 (GND), so dual-supply use requires external negative rail routing and careful grounding.
Can TS339CD drive an LED directly?
No - its output current capability is limited to ±20 mA absolute maximum, but typical VOL is 400–550 mV at 6 mA sink. Driving even a low-current LED (e.g., 2 mA @ 1.8 V) would require series resistor calculation that risks violating VOL spec under temperature variation; a discrete transistor buffer is recommended for indicator loads.
Is TS339CD qualified for automotive applications?
No - TS339CD is rated for 0 °C to +70 °C ambient operation and carries no AEC-Q100 qualification. For automotive use, ST recommends the TS339IN or TS339ID variants, which are specified from −40 °C to +125 °C and undergo extended reliability testing per automotive standards.
TS339CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- CMOS, Open-Drain
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 16V, ±1.35V ~ 8V
- :
- 5mV @ 10V
- Voltage - Input Offset (Max):
- 1pA @ 5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 25µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-SO
TS339CD FAQ
1.How can I place an order for TS339CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TS339CD 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 TS339CD reliable?
The price and inventory of TS339CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS339CD is usually 5 days.
3.What payment methods are accepted for TS339CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS339CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS339CD?
TS339CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS339CD 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 TS339CD?
For technical support, including TS339CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS339CD requirements.
6.How does Aetrix verify that TS339CD is sourced from the original manufacturer or authorized distributors?
All TS339CD 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 TS339CD meets industry standards.
7.What is the process for return or replacement of TS339CD?
All TS339CD units undergo pre-shipment inspection (PSI). If there is an issue with TS339CD, 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 TS339CD part is unused and in its original packaging.
Return procedure for TS339CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TS339CD Tags
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