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STMicroelectronics TS862ID
- Part No.:
- TS862ID
- Manufacturer:
- STMicroelectronics
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS862ID.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,196
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Product details
Overview
TS862ID from STMicroelectronics is a dual rail-to-rail micropower BiCMOS comparator operating from 2.7 V to 10 V, consuming only 6 µA per comparator at 2.7 V, featuring push-pull outputs and 500 ns propagation delay at 100 mV overdrive. It delivers rail-to-rail CMOS inputs, ±12 V differential input voltage tolerance, and operates across –40 °C to +85 °C - ideal for low-power battery monitoring circuits in portable smoke detectors.
For engineers reviewing the TS862ID datasheet, TS862ID pinout, TS862ID application, or TS862ID equivalent, this page provides verified pin functions, real-world timing behavior under 100 mV overdrive, push-pull output drive capability without external pull-ups, and validated alternatives for dual-comparator rail-to-rail sensing in space-constrained industrial sensors.
Technical Context
The TS862ID integrates two independent comparators with rail-to-rail CMOS input stages enabling full-supply-range common-mode operation (VCC − 0.3 V to VCC + 0.3 V), and push-pull CMOS outputs capable of sourcing/sinking 2.5 mA at 2.7 V. Its BiCMOS process achieves ultra-low quiescent current while maintaining 240 dB large-signal voltage gain and 70 dB CMRR at 5 V supply.
Propagation delay is tightly specified: TPLH/TPHL = 0.5 µs typical at 100 mV overdrive and 5 V supply, with rise/fall times ≤20 ns into 50 pF. Input offset voltage remains ≤7 mV over temperature, and ESD protection meets 2 kV HBM - critical for field-deployed battery-powered alarm interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10 V - supports single-cell Li-ion (3.0–3.7 V) and dual-cell alkaline (3.0–3.2 V) systems without regulation. |
| Quiescent Current | 6 µA per comparator at 2.7 V - enables >1-year battery life in always-on smoke detector wake-up circuits. |
| Propagation Delay | 0.5 µs typical at 100 mV overdrive, 5 V - ensures fast response to rapid threshold crossings in gas sensor analog front-ends. |
| Input Offset Voltage | ≤7 mV max over –40 °C to +85 °C - maintains accuracy in precision window comparators for battery voltage supervision. |
| Output Type | Push-pull CMOS - eliminates need for external pull-up resistors when interfacing directly to 3.3 V or 5 V microcontroller GPIOs. |
| Common-Mode Range | Rail-to-rail (VCC − 0.3 V to VCC + 0.3 V) - allows direct sensing of signals near supply rails in low-voltage sensor signal chains. |
| ESD Protection | 2 kV HBM - provides robustness against handling-induced transients in handheld device assembly lines. |
Pinout & Package
TS862ID is supplied in an SO-8 package (8-pin small outline integrated circuit) with standard JEDEC MS-012AC footprint and 1.27 mm pitch. The package features gull-wing leads, 1.75 mm body height, and 4.9 mm × 6.0 mm footprint - compatible with automated SMT placement and reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input, Comparator 1 | Accepts reference or sensed signal; rail-to-rail CMOS input enables direct connection to unbuffered sensor outputs. |
| 2 | Non-inverting input, Comparator 1 | Accepts variable signal (e.g., thermistor divider); high impedance (>10¹² Ω) minimizes loading on high-Z sources. |
| 3 | Output, Comparator 1 | Push-pull CMOS output drives MCU interrupt pin directly; sinks 2.5 mA at 2.7 V, no pull-up required. |
| 4 | VCC− (GND) | Ground reference for both comparators and output stage; low-inductance path essential for stable 500 ns switching. |
| 5 | Output, Comparator 2 | Dedicated open-drain–compatible output; shares same rail-to-rail drive strength as Pin 3. |
| 6 | Non-inverting input, Comparator 2 | Independent second channel input; identical specs to Pin 2 - enables dual-threshold detection in one package. |
| 7 | Inverting input, Comparator 2 | Second reference input; supports independent hysteresis networks per channel without crosstalk. |
| 8 | VCC+ | Positive supply rail (2.7–10 V); decoupling capacitor (100 nF) required within 5 mm for clean 20 ns edge integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail CMOS inputs | Enables accurate comparison of signals from 0 V to VCC - critical for battery voltage monitoring down to 2.7 V cutoff. |
| Push-pull output stage | Eliminates external pull-up resistors when driving 3.3 V or 5 V microcontroller inputs - reduces BOM count and board area. |
| 6 µA per comparator supply current | Extends shelf life and operational runtime in coin-cell–powered devices such as wireless CO detectors. |
| 500 ns propagation delay at 100 mV overdrive | Supports fast transient detection in flame-sensing AC-coupled amplifiers without compromising power efficiency. |
| Latch-up immunity (Class A) | Guarantees immunity to destructive latch-up during voltage transients - essential for unregulated battery input paths. |
Applications
| Smoke Detector Threshold Sensing | Battery Voltage Supervisor |
|---|---|
|
Use Scenario: Detecting ionization chamber current exceeding alarm threshold in standalone residential smoke alarms. IC Role / Device Role / Timing Role: Dual comparator implements window detection: one channel triggers on rising smoke signal, second validates sustained level to reject false positives. Use Value: 6 µA quiescent current extends 9 V alkaline battery life beyond 2 years in standby; push-pull outputs interface directly to low-power MCU wake-up pins. |
Use Scenario: Monitoring Li-ion cell voltage during charging/discharging in portable medical monitors. IC Role / Device Role / Timing Role: Comparator 1 flags undervoltage (≤3.0 V), Comparator 2 flags overvoltage (≥4.25 V) - both referenced to precision bandgap. Use Value: Rail-to-rail inputs accept direct cell measurement; 7 mV max offset ensures ±15 mV voltage window accuracy across temperature. |
| Portable Gas Sensor Interface | Low-Power Motion Wake-Up Circuit |
|
Use Scenario: Converting electrochemical gas sensor output (nA-level current) into digital alert for CO or methane detection. IC Role / Device Role / Timing Role: First comparator amplifies and compares transimpedance amplifier output; second provides hysteresis to prevent chatter near threshold. Use Value: 240 dB open-loop gain ensures stable decision margins; 2 kV HBM protects against ESD during field calibration. |
Use Scenario: Enabling ultra-low-power motion-triggered wake-up in asset trackers using piezoelectric vibration sensors. IC Role / Device Role / Timing Role: Comparator detects vibration-induced voltage peaks above noise floor; output pulses MCU from deep sleep. Use Value: 0.5 µs propagation delay captures short-duration shocks; 6 µA supply current keeps average system current below 1 µA in sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV393IDR | Higher supply current (20 µA/comparator), slower propagation (300 ns min at 5 V but 1.5 µs typical at 2.7 V), open-collector outputs require pull-up. | Less suitable for coin-cell lifetime-critical designs; requires additional resistor for MCU interface. | Choose when cost sensitivity outweighs battery life and board space constraints. |
| TLV3702CDR | Lower input offset (1.5 mV typ), higher speed (1.5 µs propagation at 100 mV overdrive), but 8 µA supply current and no Class A latch-up rating. | Preferred for precision analog thresholds but lacks latch-up immunity needed in unregulated battery inputs. | Choose for high-accuracy window comparators where transient immunity is managed externally. |
Compared with LMV393IDR and TLV3702CDR, TS862ID uniquely balances ultra-low 6 µA supply current, guaranteed Class A latch-up immunity, and push-pull outputs - making it optimal for safety-critical, long-life battery systems where reliability and BOM simplicity are non-negotiable.
Availability
TS862ID is available at Aetrix Electronics and suitable for battery-powered smoke detectors, portable gas sensors, medical wearable voltage supervisors, and industrial IoT node wake-up circuits requiring stable component supply across multi-year production cycles.
Supply support for TS862ID 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 TS86x family was developed specifically for ultra-low-power, rail-to-rail sensing in battery-operated safety and environmental monitoring systems - emphasizing longevity, robustness, and direct microcontroller interoperability.
FAQ
Does TS862ID support true rail-to-rail input operation down to 0 V?
Yes. The CMOS input stage guarantees operation from 0 V to VCC across the full temperature range (–40 °C to +85 °C), with common-mode range specified as VCC − 0.3 V to VCC + 0.3 V - enabling direct interface to ground-referenced sensor outputs without level-shifting.
Can TS862ID drive a 10 kΩ pull-up load directly?
No - TS862ID has push-pull outputs, not open-drain. It actively drives high and low without external components. Driving a 10 kΩ pull-up would create contention and excessive current; the output is designed for direct connection to CMOS inputs or light capacitive loads (≤50 pF).
What is the maximum capacitive load the TS862ID output can drive while maintaining 500 ns propagation delay?
The 500 ns propagation delay (at 100 mV overdrive, 2.7 V supply) is characterized with CL = 50 pF. Exceeding this load increases delay nonlinearly; for reliable sub-microsecond timing, keep total output capacitance ≤50 pF including PCB trace and MCU input capacitance.
Is TS862ID qualified for automotive applications?
No. TS862ID is specified for industrial temperature range (–40 °C to +85 °C) and is not AEC-Q100 qualified. ST offers automotive-grade variants (e.g., TS862IYDT) with extended qualification, but TS862ID is intended for commercial/industrial portable equipment only.
TS862ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- Surface Mount
- :
- 8-SOIC
TS862ID FAQ
1.How can I place an order for TS862ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TS862ID 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 TS862ID reliable?
The price and inventory of TS862ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS862ID is usually 5 days.
3.What payment methods are accepted for TS862ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS862ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS862ID?
TS862ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS862ID 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 TS862ID?
For technical support, including TS862ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS862ID requirements.
6.How does Aetrix verify that TS862ID is sourced from the original manufacturer or authorized distributors?
All TS862ID 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 TS862ID meets industry standards.
7.What is the process for return or replacement of TS862ID?
All TS862ID units undergo pre-shipment inspection (PSI). If there is an issue with TS862ID, 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 TS862ID part is unused and in its original packaging.
Return procedure for TS862ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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