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STMicroelectronics TS332IST
- Part No.:
- TS332IST
- Manufacturer:
- STMicroelectronics
- Category:
- Comparators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TS332IST.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:1,455
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Product details
Overview
TS332IST from STMicroelectronics is a dual micropower, rail-to-rail input comparator with open-drain output, operating from 1.6 V to 5.0 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 industrial sensors and automotive body electronics.
For engineers reviewing the TS332IST datasheet, TS332IST pinout, TS332IST application, or TS332IST equivalent, this device is selected for ultra-low-power voltage monitoring, precision threshold detection in portable medical devices, and wake-up comparators in always-on IoT edge nodes where supply headroom and quiescent current are critical constraints.
Technical Context
The TS332IST integrates two independent comparators sharing a common supply domain, each with rail-to-rail input stage capable of sensing signals within 200 mV of either rail. Its open-drain outputs require external pull-up resistors and support wired-OR logic and level translation across mixed-voltage domains.
Designed for operation down to 1.6 V, it maintains stable propagation delay and low input offset drift (as low as 1.3 µV/°C at 5 V) across temperature and supply variations - making it suitable for high-accuracy window comparators and battery voltage gauging in energy-constrained systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6 V to 5.0 V - enables direct interface with single-cell Li-ion (3.0–4.2 V), coin-cell (1.5–3.0 V), and 3.3 V/5 V logic rails. |
| Quiescent Current | 20 µA typical per comparator - supports >1-year battery life in always-on sensor nodes powered by CR2032. |
| Propagation Delay | 210 ns (TPHL, 100 mV overdrive, VCC = 1.8 V) - sufficient for fast response in power-good detection and overvoltage latch circuits. |
| Input Offset Voltage | ±5 mV max at 25 °C - ensures reliable 10 mV-level threshold discrimination without trimming in cost-sensitive designs. |
| Input Common-Mode Range | (VCC−) − 0.2 V to (VCC+) + 0.2 V - supports rail-to-rail sensing including ground-referenced and high-side signal monitoring. |
| Output Type | Open-drain - allows flexible pull-up to higher/lower voltage domains and multi-comparator wired-OR outputs. |
| ESD Rating | 2 kV HBM - meets IEC 61000-4-2 Level 2 for robustness in handheld and automotive cabin environments. |
Pinout & Package
TS332IST is housed in an SO8 package (8-pin small outline integrated circuit), with exposed pad not present and no thermal slug. Pin assignments are validated per Figure 1 and Table 11 in DocID17272 Rev 6.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Open-drain output of Comparator 1 - requires external pull-up; sinks up to 22 mA at 2.7 V. |
| 2 | IN1− | Inverting input of Comparator 1 - rail-to-rail capable; bias current ≤40 nA. |
| 3 | IN1+ | Non-inverting input of Comparator 1 - rail-to-rail capable; matched to IN1− for low offset. |
| 4 | VCC− | Negative supply pin (GND reference) - must be connected directly to system ground plane. |
| 5 | IN2+ | Non-inverting input of Comparator 2 - electrically isolated from Comparator 1 inputs. |
| 6 | IN2− | Inverting input of Comparator 2 - independent bias path; supports differential sensing. |
| 7 | OUT2 | Open-drain output of Comparator 2 - independently controllable; compatible with 1.8 V–5 V pull-ups. |
| 8 | VCC+ | Positive supply pin - accepts 1.6–5.0 V; decoupling capacitor (100 nF) required adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Enables accurate comparison of signals near VCC+ or VCC−, eliminating need for level-shifting in low-voltage sensor interfaces. |
| 210 ns propagation delay | Supports real-time response in battery fuel gauging and power sequencing where timing margins are tight. |
| –40 °C to +125 °C operation | Qualified for under-hood automotive and industrial control applications without derating. |
| 2 kV HBM ESD tolerance | Reduces need for external protection components in consumer and automotive PCB layouts. |
| SO8 package with standard footprint | Ensures compatibility with legacy reflow profiles and automated optical inspection (AOI) systems. |
Applications
| Power Sequencing Monitor | Battery Voltage Supervisor |
|---|---|
|
Use Scenario: Monitoring multiple DC/DC converter outputs during system startup to ensure correct power-up order before releasing reset. IC Role / Device Role / Timing Role: Dual comparator independently checks VDD1 ≥ 3.2 V and VDD2 ≥ 1.8 V; outputs drive OR-gated reset generator. Use Value: Eliminates dedicated PMIC while maintaining <500 ns timing margin between monitored rails via matched TPHL/TPLH. |
Use Scenario: Detecting end-of-charge and deep-discharge thresholds in a single-cell Li-ion pack for portable medical monitors. IC Role / Device Role / Timing Role: One comparator triggers charge-complete flag at 4.2 V; second asserts low-battery warning at 3.0 V. Use Value: 20 µA total supply current extends runtime by >12 hours versus standard comparators in continuous-monitor mode. |
| Automotive Cabin Sensor Interface | IoT Edge Node Wake-Up Circuit |
|
Use Scenario: Converting analog signals from temperature/humidity sensors into digital alerts for HVAC control MCU. IC Role / Device Role / Timing Role: Rail-to-rail inputs accept 0–3.3 V sensor outputs; open-drain outputs interface directly to 3.3 V MCU GPIO with internal pull-up. Use Value: Operates reliably at 125 °C ambient and withstands load-dump transients due to robust input structure and 2 kV HBM rating. |
Use Scenario: Detecting motion-triggered PIR sensor output to wake a BLE microcontroller from deep sleep. IC Role / Device Role / Timing Role: Comparator output drives MCU interrupt pin; low 20 µA quiescent current minimizes sleep-mode leakage. Use Value: 210 ns response time ensures sub-millisecond wake latency, meeting Bluetooth SIG connection timing requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3702IDR | Higher supply current (42 µA), faster propagation (1.5 µs), rail-to-rail output (push-pull) | Requires external level shifters for mixed-voltage interfacing; unsuitable for ultra-low-power sleep modes | Select when push-pull output and faster response outweigh current budget constraints. |
| MAX9062ASA+ | Lower offset (±1.5 mV), higher supply range (1.8–5.5 V), but 60 µA ICC and non-rail-to-rail inputs | Cannot monitor signals near GND or VCC without external resistive dividers or amplifiers | Select when precision threshold accuracy is prioritized over input range and quiescent current. |
Compared with TLV3702IDR and MAX9062ASA+, TS332IST uniquely balances rail-to-rail input capability, 20 µA supply current, and SO8 manufacturability - making it optimal for space- and power-constrained automotive and portable designs where input flexibility and longevity are co-critical.
Availability
TS332IST is available at Aetrix Electronics and suitable for battery management systems, automotive body controllers, and portable medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TS332IST 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, delivering silicon solutions for automotive, industrial, and consumer markets since 1987.
The TS33x family was designed specifically for micropower, low-voltage analog signal conditioning in space-constrained portable and automotive electronics - emphasizing rail-to-rail operation, wide temperature resilience, and SMD package scalability.
FAQ
Can TS332IST operate from a single 1.6 V supply?
Yes. TS332IST is fully specified from 1.6 V to 5.0 V supply, with rail-to-rail inputs functional down to 1.6 V and propagation delay maintained at 320 ns (TPHL) under those conditions. Input common-mode range extends to (VCC−) − 0.2 V, enabling ground-referenced sensing even at minimum supply.
What is the maximum sink current for each output?
Each open-drain output can sink up to 22 mA at VCC = 2.7 V and 93 mA at VCC = 5 V (with VOL ≤ 60 mV at ISINK = 1 mA). The absolute maximum sink current is limited by junction temperature rise; SO8 package thermal resistance (Rthja) is 125 °C/W, requiring derating above 15 mA continuous in still air.
Does TS332IST require external hysteresis?
No internal hysteresis is provided. External hysteresis must be added via positive feedback (e.g., resistor from OUT to IN+) if noise immunity is required. Typical values: 10 MΩ feedback resistor with 100 kΩ input resistor yields ~5 mV hysteresis - matching the device's inherent offset for stable switching.
Is the SO8 variant of TS332IST automotive qualified?
Yes. TS332IST is AEC-Q100 Grade 1 qualified (–40 °C to +125 °C), with full test coverage per stress conditions defined in the qualification report. It meets automotive requirements for ESD (2 kV HBM), latch-up immunity (200 mA), and long-term reliability under thermal cycling and humidity exposure.
TS332IST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- 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):
- 720ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-MiniSO
TS332IST FAQ
1.How can I place an order for TS332IST through Aetrix?
Please submit a Request for Quotation (RFQ) for TS332IST 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 TS332IST reliable?
The price and inventory of TS332IST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS332IST is usually 5 days.
3.What payment methods are accepted for TS332IST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS332IST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS332IST?
TS332IST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS332IST 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 TS332IST?
For technical support, including TS332IST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS332IST requirements.
6.How does Aetrix verify that TS332IST is sourced from the original manufacturer or authorized distributors?
All TS332IST 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 TS332IST meets industry standards.
7.What is the process for return or replacement of TS332IST?
All TS332IST units undergo pre-shipment inspection (PSI). If there is an issue with TS332IST, 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 TS332IST part is unused and in its original packaging.
Return procedure for TS332IST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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