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STMicroelectronics TS862IPT
- Part No.:
- TS862IPT
- Manufacturer:
- STMicroelectronics
- Category:
- Comparators
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TS862IPT.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,848
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Product details
Overview
TS862IPT from STMicroelectronics is a dual rail-to-rail micropower BiCMOS comparator in TSSOP8 package, operating from 2.7 V to 10 V with 6 µA per comparator supply current, 500 ns propagation delay at 2.7 V/100 mV overdrive, and push-pull outputs enabling direct microcontroller interface without pull-up resistors - deployed in battery-powered smoke detectors and portable communication systems.
For engineers reviewing the TS862IPT datasheet, TS862IPT pinout, TS862IPT application, or TS862IPT equivalent, key selection criteria include ultra-low quiescent current, rail-to-rail input common-mode range (VCC − 0.3 V to VCC + 0.3 V), push-pull output drive capability (2.5 mA sink/source at 2.7 V), −40 °C to +85 °C industrial temperature rating, and TSSOP8 thermal resistance (RTHJA = 120 °C/W).
Technical Context
The TS862IPT integrates two independent comparators with rail-to-rail CMOS inputs and complementary push-pull outputs, eliminating external pull-up components. Its BiCMOS process enables simultaneous low power (6 µA/comparator) and fast response (500 ns typical at 100 mV overdrive, 2.7 V).
Input offset voltage is specified at 3–15 mV across temperature, with 6 µV/°C drift; supply rejection (SVR = 80 dB) and common-mode rejection (CMR = 70 dB at 5 V) ensure stable operation under varying rail conditions and noisy environments typical in portable sensing nodes.
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), two-cell alkaline (2.7–3.2 V), and regulated 5 V/9 V rails without level-shifting. |
| Quiescent Current | 6 µA per comparator at 2.7 V - enables >1-year battery life in coin-cell–powered alarms with periodic wake-up sampling. |
| Propagation Delay | 500 ns typical at 100 mV overdrive, 2.7 V - sufficient for fast threshold detection in gas sensor analog front-ends. |
| Input Offset Voltage | 3–15 mV (−40 °C to +85 °C) - ensures reliable 20 mV hysteresis implementation without trimming in fire detector reference circuits. |
| Output Type | Push-pull CMOS - drives GPIOs directly; eliminates 4.7 kΩ pull-up resistor and associated leakage/battery drain in MCU wake-up paths. |
| ESD Protection | 2 kV HBM - meets IEC 61000-4-2 Level 2 for handheld device interfaces exposed to user handling. |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial-grade portable equipment deployed in uncontrolled ambient environments. |
Pinout & Package
TSSOP8 package: 3 mm × 4.4 mm body, 0.65 mm pitch, 1.05 mm max height, RTHJA = 120 °C/W, RoHS-compliant ECOPACK®.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Comp 1) | Accepts reference or sensor signal; rail-to-rail input range supports direct connection to resistive divider outputs. |
| 2 | Non-inverting Input (Comp 1) | Accepts sensed voltage (e.g., thermistor or gas sensor output); common-mode range extends to VCC ± 0.3 V. |
| 3 | VCC+ | Positive supply pin; decoupling capacitor (100 nF) required within 5 mm for stable high-speed switching. |
| 4 | Output (Comp 1) | Push-pull CMOS output; sinks or sources up to 2.5 mA at 2.7 V - directly interfaces STM32L0 GPIO with no external components. |
| 5 | GND | Analog/digital ground reference; must be connected to low-impedance PCB plane to minimize noise coupling into sensitive inputs. |
| 6 | Output (Comp 2) | Independent push-pull output; enables dual-threshold detection (e.g., warning + alarm) from single sensor signal chain. |
| 7 | Non-inverting Input (Comp 2) | Second comparator input; allows differential monitoring of two independent sensors or redundant thresholds. |
| 8 | Inverting Input (Comp 2) | Second comparator inverting input; supports cross-coupled hysteresis configuration for noise-immune latching behavior. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail CMOS inputs | Enables full-supply-range sensing (e.g., 0–2.7 V from photodiode transimpedance amplifier) without input clamping or level shifters. |
| Push-pull output stage | Eliminates need for external pull-up resistors - reduces BOM count, board area, and standby current in always-on battery systems. |
| Ultra-low 6 µA/comparator ICC | Permits integration into energy-harvesting subsystems (e.g., solar-charged smoke alarms) where average current must stay below 10 µA. |
| 500 ns propagation delay @ 100 mV overdrive | Supports rapid fault detection in portable medical monitors requiring <1 µs response to critical physiological thresholds. |
| Latch-up immunity (Class A) | Guarantees robustness against transient-induced latch-up during hot-swap or ESD events in field-deployed instrumentation. |
Applications
| Smoke Detector Threshold Monitoring | Portable Gas Analyzer Signal Conditioning |
|---|---|
|
Use Scenario: Detecting smoke particle density via optical chamber current changes in battery-powered residential alarms. IC Role / Device Role / Timing Role: Dual comparator implements high-sensitivity warning (Comp 1) and latched alarm (Comp 2) thresholds on same analog input path. Use Value: Push-pull outputs drive MCU interrupt pins directly; 6 µA quiescent current extends CR123A battery life to >3 years in standby mode. |
Use Scenario: Converting electrochemical sensor output into digital alerts for CO, NO₂, or VOC presence in handheld air quality meters. IC Role / Device Role / Timing Role: Comp 1 compares sensor voltage to calibrated baseline; Comp 2 validates sustained exceedance to reject false triggers from humidity transients. Use Value: Rail-to-rail inputs accept 0–3.3 V sensor output directly; 500 ns delay enables real-time response to rapid gas concentration spikes. |
| Low-Power Wireless Sensor Node Wake-Up | Industrial Battery-Backed RTU Analog Monitoring |
|
Use Scenario: Waking an ESP32-based LoRaWAN node when temperature exceeds preset limit in remote environmental logging. IC Role / Device Role / Timing Role: Comparator output triggers MCU reset pin or GPIO interrupt; second comparator monitors battery voltage for graceful shutdown. Use Value: 2.7 V minimum supply allows operation down to single-cell LiFePO₄ (2.8 V cutoff); TSSOP8 footprint minimizes PCB area in compact enclosures. |
Use Scenario: Supervising 4–20 mA loop integrity and backup battery voltage in programmable logic controller (PLC) remote I/O modules. IC Role / Device Role / Timing Role: One comparator monitors loop current via shunt; second verifies 3.3 V LDO output stability during AC mains failure. Use Value: −40 °C to +85 °C rating ensures reliability in outdoor cabinets; 80 dB SVR rejects noise from adjacent motor drives on shared PCB. |
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 ICC (20 µA/comparator), open-drain outputs requiring pull-up resistors, wider offset (±7 mV), no rail-to-rail inputs. | Less suitable for ultra-low-power battery systems; requires additional passives for GPIO interfacing. | Prefer TS862IPT when supply current <10 µA and direct MCU drive are mandatory. |
| TLV3702IPWR | Lower ICC (1 µA/comparator), rail-to-rail inputs/outputs, but slower (3 µs propagation delay), limited VCC range (2.7–5.5 V). | Better for multi-year coin-cell use but insufficient for 9 V battery or wide-input industrial sensors. | Choose TS862IPT for 2.7–10 V flexibility and sub-µs response in portable instrumentation. |
Compared with LMV393IDR and TLV3702IPWR, TS862IPT uniquely balances 6 µA quiescent current, 500 ns speed, 2.7–10 V operation, and push-pull outputs - making it optimal for dual-threshold detection in space-constrained, long-life battery systems where both power and timing matter.
Availability
TS862IPT is available at Aetrix Electronics and suitable for battery-powered smoke detectors, portable gas analyzers, wireless sensor node wake-up circuits, and industrial RTU analog monitoring requiring stable component supply across extended production lifecycles.
Supply support for TS862IPT 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 targets ultra-low-power sensing applications; its BiCMOS architecture was engineered specifically to deliver sub-µA/mA performance trade-offs essential for maintenance-free portable safety and environmental monitoring devices.
FAQ
What is the maximum supply voltage for TS862IPT?
The absolute maximum supply voltage is 12 V, but the recommended operating range is 2.7 V to 10 V per the datasheet. Operation above 10 V risks exceeding internal junction temperature limits and degrading long-term reliability, especially in TSSOP8's 120 °C/W thermal environment.
Can TS862IPT drive an LED directly?
No - its push-pull output is rated for 2.5 mA sink/source at 2.7 V, insufficient for typical indicator LEDs (requiring 5–20 mA). It can drive MCU GPIOs or logic inputs directly, but an external transistor or driver IC is needed for LED loads.
Does TS862IPT require external hysteresis?
Yes - the device has no internal hysteresis. External positive feedback (e.g., 10 MΩ resistor from output to non-inverting input) is required to prevent oscillation near threshold in noisy environments like smoke detector optical chambers.
Is TS862IPT pin-compatible with other TS86x variants in TSSOP8?
Yes - TS862IPT (dual) shares identical TSSOP8 pinout with TS862AIPT (A-grade version). However, TS861 (single) and TS864 (quad) use different packages (SOT23-5 and TSSOP14), so direct substitution is not possible without PCB redesign.
TS862IPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-TSSOP
TS862IPT FAQ
1.How can I place an order for TS862IPT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS862IPT 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 TS862IPT reliable?
The price and inventory of TS862IPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS862IPT is usually 5 days.
3.What payment methods are accepted for TS862IPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS862IPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS862IPT?
TS862IPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS862IPT 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 TS862IPT?
For technical support, including TS862IPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS862IPT requirements.
6.How does Aetrix verify that TS862IPT is sourced from the original manufacturer or authorized distributors?
All TS862IPT 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 TS862IPT meets industry standards.
7.What is the process for return or replacement of TS862IPT?
All TS862IPT units undergo pre-shipment inspection (PSI). If there is an issue with TS862IPT, 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 TS862IPT part is unused and in its original packaging.
Return procedure for TS862IPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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