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STMicroelectronics TS862IN
- Part No.:
- TS862IN
- Manufacturer:
- STMicroelectronics
- Category:
- Comparators
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TS862IN.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,396
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Product details
Overview
TS862IN from STMicroelectronics is a dual rail-to-rail micropower BiCMOS comparator operating from 2.7 V to 10 V, consuming only 6 µA per channel at 2.7 V, featuring push-pull outputs, 500 ns propagation delay at 100 mV overdrive, and rail-to-rail CMOS inputs - deployed in battery-powered smoke detectors and portable communication systems.
For engineers reviewing the TS862IN datasheet, TS862IN pinout, TS862IN application, or TS862IN equivalent, key selection criteria include ultra-low supply current, push-pull output eliminating external pull-ups, rail-to-rail input common-mode range, temperature-stable offset voltage (±15 mV max), and SO-8 package compatibility with industrial PCB layouts.
Technical Context
The TS862IN implements two independent high-speed comparators with BiCMOS input stages enabling rail-to-rail common-mode operation (VCC − 0.3 V to VCC + 0.3 V) and low input bias current (≤600 pA). Its push-pull output stage drives logic-level loads directly without pull-up resistors.
It achieves 500 ns propagation delay at 2.7 V with 100 mV overdrive while maintaining 6 µA/channel quiescent current. Input offset voltage drift is specified at 6 µV/°C, and large-signal voltage gain exceeds 240 dB across the full operating temperature range (−40 °C to +85 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10 V - supports single-cell Li-ion, dual-cell alkaline, and 5 V/9 V industrial rails without regulation. |
| Quiescent Current | 6 µA per comparator at 2.7 V - enables >10-year battery life in low-duty-cycle alarm systems. |
| Propagation Delay | 500 ns at 2.7 V, 100 mV overdrive - sufficient for fast threshold detection in gas sensor wake-up circuits. |
| Input Offset Voltage | ±15 mV max (−40 °C to +85 °C) - ensures reliable trip-point accuracy in precision threshold applications. |
| Output Type | Push-pull CMOS - eliminates need for external pull-up resistors, reducing BOM count and board space. |
| Input Common-Mode Range | Rail-to-rail (VCC − 0.3 V to VCC + 0.3 V) - allows direct sensing of battery voltage or sensor output near supply rails. |
| ESD Protection | 2 kV HBM - provides robustness against handling and system-level ESD events in portable equipment. |
Pinout & Package
TS862IN is packaged in an SO-8 (Small Outline Integrated Circuit, 8-pin) plastic package with standard 1.27 mm pitch, compliant with ECOPACK® environmental specifications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input, Channel 1 | Accepts reference or sensor signal; rail-to-rail compatible down to VCC−0.3 V. |
| 2 | Non-inverting input, Channel 1 | Accepts sensed signal; supports full supply-rail common-mode range. |
| 3 | Output, Channel 1 | Push-pull CMOS output - sinks or sources up to 2.5 mA, directly interfaces with MCU GPIO. |
| 4 | GND | Ground reference for both comparators and output stage; shared return path. |
| 5 | Output, Channel 2 | Independent push-pull output; electrically isolated from Channel 1 output. |
| 6 | Non-inverting input, Channel 2 | Second sensing input; identical electrical characteristics to Pin 2. |
| 7 | Inverting input, Channel 2 | Second reference input; matches Pin 1 performance and voltage range. |
| 8 | VCC | Positive supply rail; powers both comparators and output stages; decoupling required at pin. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 6 µA per comparator at 2.7 V enables multi-year operation on coin-cell batteries in wireless sensors. |
| Rail-to-rail CMOS inputs | Supports input signals from GND to VCC, critical for monitoring battery voltage or unbuffered transducer outputs. |
| Push-pull output stage | Eliminates external pull-up resistors, reducing component count and improving rise/fall time consistency. |
| High ESD immunity | 2 kV HBM rating protects against electrostatic discharge during assembly and field handling. |
| Latch-up immunity (Class A) | Guaranteed immunity to destructive latch-up under transient overvoltage conditions per JEDEC JESD78. |
Applications
| Smoke Detector Threshold Monitoring | Portable Medical Pulse Oximeter |
|---|---|
|
Use Scenario: Detecting rapid smoke particle concentration changes using ionization or optical chamber output. IC Role / Device Role / Timing Role: Dual comparator compares chamber signal against two adjustable thresholds to trigger alarm and pre-alarm states independently. Use Value: Push-pull outputs drive microcontroller interrupts directly; 6 µA/channel current extends battery life beyond 5 years in standby mode. |
Use Scenario: Real-time discrimination of red/infrared photodiode signals to identify pulse waveform edges. IC Role / Device Role / Timing Role: One comparator detects rising edge of IR signal; second validates concurrent red signal slope for motion artifact rejection. Use Value: 500 ns propagation delay ensures sub-millisecond timing resolution; rail-to-rail inputs capture full dynamic range of low-voltage photodiode outputs. |
| Low-Power Wireless Sensor Node | Industrial Battery Backup Monitor |
|
Use Scenario: Waking up an ultra-low-power MCU when ambient light or temperature crosses preset limits. IC Role / Device Role / Timing Role: Comparator channels monitor phototransistor and thermistor divider outputs, generating wake-up pulses via open-drain-compatible push-pull outputs. Use Value: 2.7–10 V supply range accommodates aging Li-SOCl₂ cells; −40 °C to +85 °C rating ensures outdoor deployment reliability. |
Use Scenario: Supervising backup battery voltage in programmable logic controllers during AC mains failure. IC Role / Device Role / Timing Role: Dual comparators monitor main rail and battery voltage simultaneously to initiate switchover and log fault events. Use Value: ±15 mV input offset ensures accurate 3.3 V or 5 V brown-out detection; SO-8 package fits legacy industrial PCB footprints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV393IDR | Higher supply current (20 µA/channel), no rail-to-rail inputs, open-collector outputs requiring pull-up. | Suitable for non-battery systems where cost is prioritized over power; not viable for direct MCU interface without resistor network. | Select only if existing design uses open-collector topology and supply current >15 µA/channel is acceptable. |
| TLV3702CDR | Lower quiescent current (1 µA/channel), rail-to-rail inputs, but push-pull output rated only to 1.8 V min supply. | Better for sub-2 V coin-cell applications; incompatible with 2.7–10 V industrial rails due to absolute maximum VCC limit of 8 V. | Prefer for <2.5 V systems; avoid for 5 V/9 V designs or where 10 V tolerance is required. |
Compared with TS862IN, LMV393IDR trades power efficiency for cost and legacy compatibility, while TLV3702CDR improves quiescent current but sacrifices supply voltage range and industrial temperature margin - TS862IN uniquely balances 2.7–10 V operation, rail-to-rail inputs, push-pull outputs, and 6 µA/channel draw in a standard SO-8 footprint.
Availability
TS862IN is available at Aetrix Electronics and suitable for battery-powered alarms, portable medical devices, and industrial backup monitors requiring stable component supply across extended product lifecycles.
Supply support for TS862IN 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, mixed-signal, power, and microcontroller solutions for industrial, automotive, and consumer markets.
TS862IN belongs to the TS86x rail-to-rail micropower comparator family, engineered specifically for long-life battery-operated systems demanding precision threshold detection with minimal power overhead.
FAQ
What is the maximum operating supply voltage for TS862IN?
The absolute maximum supply voltage is 12 V, but the guaranteed operational range is 2.7 V to 10 V per datasheet Table 2. Operation above 10 V may cause parametric degradation or reliability risk and is not characterized or warranted.
Does TS862IN require external pull-up resistors on its outputs?
No. TS862IN features true push-pull CMOS outputs capable of sourcing and sinking ≥2.5 mA, allowing direct connection to microcontroller GPIO pins without external pull-up resistors - confirmed in the "Push-pull outputs" feature list and Figure 1 schematic.
Can TS862IN operate at −40 °C?
Yes. TS862IN is fully specified and production-tested over −40 °C to +85 °C, including all key parameters: input offset voltage (±15 mV max), propagation delay (≤500 ns at 2.7 V), and supply current (6–14 µA/channel), as defined in Tables 2 and 3 of the datasheet.
Is TS862IN pin-compatible with other dual comparators in SO-8 packages?
No. TS862IN follows ST's proprietary dual-comparator SO-8 pinout (Pin 1 = IN− CH1, Pin 2 = IN+ CH1, Pin 3 = OUT CH1, Pin 4 = GND, etc.), which differs from industry-standard pinouts like LM393 or TLC372 - PCB layout must match ST's documented pin mapping.
TS862IN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 10V
- :
- 15mV @ 5V
- Voltage - Input Offset (Max):
- 300pA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 16µA
- Current - Quiescent (Max):
- 70dB CMRR
- CMRR, PSRR (Typ):
- 2µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Through Hole
- :
- 8-DIP
TS862IN FAQ
1.How can I place an order for TS862IN through Aetrix?
Please submit a Request for Quotation (RFQ) for TS862IN 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 TS862IN reliable?
The price and inventory of TS862IN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS862IN is usually 5 days.
3.What payment methods are accepted for TS862IN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS862IN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS862IN?
TS862IN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS862IN 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 TS862IN?
For technical support, including TS862IN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS862IN requirements.
6.How does Aetrix verify that TS862IN is sourced from the original manufacturer or authorized distributors?
All TS862IN 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 TS862IN meets industry standards.
7.What is the process for return or replacement of TS862IN?
All TS862IN units undergo pre-shipment inspection (PSI). If there is an issue with TS862IN, 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 TS862IN part is unused and in its original packaging.
Return procedure for TS862IN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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