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STMicroelectronics TS3021IYLT
- Part No.:
- TS3021IYLT
- Manufacturer:
- STMicroelectronics
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TS3021IYLT.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:6,433
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Product details
Overview
TS3021IYLT from STMicroelectronics is a single, rail-to-rail input, push-pull output high-speed comparator optimized for automotive and industrial applications. It delivers 38 ns propagation delay at 2 V supply, consumes only 73 µA quiescent current, operates from 1.8–5 V, and is qualified for -40 °C to 125 °C ambient temperature - enabling use in battery-powered signal conditioning and telecom front-end monitoring circuits.
For engineers reviewing the TS3021IYLT datasheet, TS3021IYLT pinout, TS3021IYLT application, or TS3021IYLT equivalent, key selection considerations include its micropower/high-speed tradeoff, AEC-Q100 qualification, SC70-5 package footprint, and push-pull output drive capability without external pull-up.
Technical Context
The TS3021IYLT implements a CMOS input stage with rail-to-rail common-mode range and a complementary push-pull output stage capable of sourcing up to 51 mA and sinking up to 40 mA at 5 V supply. Its propagation delay remains stable across 1.8–5 V supply and overdrive voltages ≥20 mV, with typical TPLH/TPHL of 39–45 ns at 3.3 V and 100 mV overdrive.
Input offset voltage is specified at 0.5–2 mV (typ) for the TS3021A variant, with drift ≤20 µV/°C over -40 °C to 125 °C; CMRR reaches 79 dB and SVR is 58–73 dB, supporting precision threshold detection in noisy power rails and sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation delay | 38 ns (typ, 2 V, 100 mV overdrive): enables >10 MHz sampling decision timing in high-speed data acquisition. |
| Supply voltage range | 1.8–5 V: supports direct interface with 1.8 V logic, 3.3 V microcontrollers, and 5 V analog subsystems without level-shifting. |
| Quiescent current | 73 µA (typ, 2 V): allows continuous operation in always-on battery-monitoring or wake-up comparator circuits for >10-year coin-cell life. |
| Operating temperature | -40 °C to 125 °C: meets AEC-Q100 Grade 1 requirements for under-hood automotive electronics and industrial motor control. |
| Input common-mode range | Rail-to-rail (VCC− −0.2 V to VCC+ +0.2 V at 25 °C): permits direct sensing of signals near supply rails, e.g., battery voltage monitoring down to 0 V. |
| Output type | Push-pull: eliminates need for external pull-up resistor, reduces BOM count, and ensures fast, deterministic low-impedance transitions. |
| ESD tolerance | 5 kV HBM / 300 V MM: provides robustness against handling and board-level ESD events in manufacturing and field environments. |
Pinout & Package
TS3021IYLT is supplied in the SC70-5 (SOT323-5) package - a 1.8 × 2.0 mm, 5-pin surface-mount outline with coplanar gull-wing leads and 0.65 mm pitch. This compact, thermally efficient package (RthJA = 205 °C/W) supports high-density PCB layouts in space-constrained portable and automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 OUT | Comparator output | CMOS-compatible push-pull node; drives logic inputs directly or switches small loads up to 4 mA at 3.3 V. |
| 2 VCC− | Negative supply terminal | Reference ground for dual-supply operation; also serves as substrate reference and return path for input bias currents. |
| 3 IN+ | Non-inverting input | High-impedance CMOS node; accepts rail-to-rail analog signals; bias current ≤100 nA over full temperature range. |
| 4 IN− | Inverting input | High-impedance CMOS node; used for reference voltage comparison or hysteresis feedback configuration. |
| 5 VCC+ | Positive supply terminal | Primary power rail; supplies internal amplifier and output stage; supports 1.8–5 V operation with no external regulation required. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Enables accurate threshold detection at 0 V and VCC+, critical for battery end-of-discharge monitoring and supply rail supervision. |
| Push-pull output | Eliminates external pull-up resistor, reduces system latency, and ensures clean logic-level transitions without rise-time degradation. |
| AEC-Q100 qualified | Validated for automotive Grade 1 (-40 °C to 125 °C), including HTOL, TC, and ESD stress testing - suitable for ADAS sensor interfaces and body control modules. |
| Low-input-offset drift | ΔVIO/ΔT ≤20 µV/°C ensures stable trip points across temperature, reducing calibration overhead in precision instrumentation amplifiers. |
| Wide supply range | 1.8–5 V operation allows single-supply compatibility with modern ultra-low-voltage MCUs and legacy 5 V systems without redesign. |
Applications
| Telecom Line Interface Monitoring | Portable Medical Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Detecting line fault conditions (short/open) in DSL or POTS interface circuits using differential voltage thresholds. IC Role / Device Role / Timing Role: High-speed comparator comparing line voltage against programmable reference to trigger protection logic within <50 ns. Use Value: 38 ns propagation delay and 5 kV HBM rating ensure reliable fault response and robustness against induced transients on copper lines. |
Use Scenario: Converting analog biosensor outputs (e.g., ECG electrode differential pairs) into digital pulses for microcontroller ADC triggering. IC Role / Device Role / Timing Role: Rail-to-rail input comparator generating precise zero-crossing or amplitude-threshold events for synchronized sampling. Use Value: 73 µA supply current extends battery life in wearable devices; SC70-5 footprint minimizes PCB area in compact sensor nodes. |
| Automotive Battery Management System (BMS) | Industrial PLC Analog Input Module |
|
Use Scenario: Monitoring cell voltage imbalance in 12 V lead-acid or LiFePO₄ battery packs during charge/discharge cycles. IC Role / Device Role / Timing Role: Precision comparator detecting overvoltage/undervoltage conditions with <2 mV offset to minimize false trips. Use Value: -40 °C to 125 °C operation and AEC-Q100 qualification ensure reliability in engine bay and under-seat BMS enclosures. |
Use Scenario: Providing fast, accurate over-range detection for 4–20 mA current loop receivers in factory automation I/O modules. IC Role / Device Role / Timing Role: High-CMRR comparator rejecting common-mode noise on long industrial cables while maintaining sub-mV threshold accuracy. Use Value: 79 dB CMRR and 58–73 dB SVR suppress interference from variable-frequency drives and switching power supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS3021ILT | SOT23-5 package (larger footprint, RthJA = 250 °C/W); identical electrical specs and AEC-Q100 qualification. | Better thermal margin in high-power-density boards; less suitable for ultra-compact portable designs. | Select when board layout allows larger 3.0 × 2.8 mm footprint and higher junction-to-ambient thermal resistance is acceptable. |
| TS3121IYLT | Open-drain output, fail-safe inputs (IN− fails high if floating); same SC70-5 package and supply range. | Required where wired-OR bus interfacing or fail-safe default-high behavior is needed (e.g., safety interlocks). | Choose only when open-drain functionality or guaranteed high-Z/fail-high behavior is mandatory - not a drop-in replacement. |
Compared with TS3021ILT, TS3021IYLT offers superior board-area efficiency and lower thermal resistance; compared with TS3121IYLT, it provides faster logic-compatible switching but lacks fail-safe input behavior and wired-OR capability.
Availability
TS3021IYLT is available at Aetrix Electronics and suitable for automotive battery monitoring, portable medical sensor interfaces, and industrial analog input modules requiring stable component supply with AEC-Q100 compliance and SC70-5 packaging.
Supply support for TS3021IYLT 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 products for automotive, industrial, and power management applications.
The TS3021 series belongs to ST's precision analog comparators product line, engineered specifically for high-speed, low-power threshold detection in automotive-grade and harsh-environment systems.
FAQ
What is the maximum recommended supply voltage for TS3021IYLT?
The absolute maximum supply voltage (VCC = VCC+ − VCC−) is 5.5 V. Continuous operation above 5 V risks permanent damage. The device is fully specified from 1.8 V to 5 V; performance parameters such as propagation delay and output drive degrade outside this range, and no characterization data is provided beyond 5 V.
Does TS3021IYLT support dual-supply operation?
Yes - TS3021IYLT supports true dual-supply operation with separate VCC+ and VCC− pins. The input common-mode range extends 0.2 V beyond each rail, and the output swings rail-to-rail relative to VCC− and VCC+. This enables use with ±2.5 V supplies or asymmetric configurations like VCC+ = 3.3 V and VCC− = −1.8 V.
Can TS3021IYLT drive an LED directly?
No - while the output can source up to 51 mA at 5 V, driving an LED requires current limiting and forward-voltage matching not provided by the comparator's output stage. Using it directly risks exceeding safe operating area limits and violates recommended practice; a discrete transistor or dedicated LED driver should be used instead.
Is there hysteresis built into TS3021IYLT?
No - TS3021IYLT has no internal hysteresis. External positive feedback must be added via resistors between OUT and IN+ to implement user-defined hysteresis voltage (e.g., 10–50 mV) for noise immunity in slow-moving or noisy input signals.
TS3021IYLT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 1.8V ~ 5V
- :
- 6mV @ 5V
- Voltage - Input Offset (Max):
- 0.16µA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 90µA
- Current - Quiescent (Max):
- 79dB CMRR
- CMRR, PSRR (Typ):
- 105ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- Automotive
- Grade:
- AEC-Q100
- Qualification:
- Surface Mount
- :
- SOT-23-5
TS3021IYLT FAQ
1.How can I place an order for TS3021IYLT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS3021IYLT 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 TS3021IYLT reliable?
The price and inventory of TS3021IYLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS3021IYLT is usually 5 days.
3.What payment methods are accepted for TS3021IYLT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS3021IYLT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS3021IYLT?
TS3021IYLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS3021IYLT 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 TS3021IYLT?
For technical support, including TS3021IYLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS3021IYLT requirements.
6.How does Aetrix verify that TS3021IYLT is sourced from the original manufacturer or authorized distributors?
All TS3021IYLT 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 TS3021IYLT meets industry standards.
7.What is the process for return or replacement of TS3021IYLT?
All TS3021IYLT units undergo pre-shipment inspection (PSI). If there is an issue with TS3021IYLT, 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 TS3021IYLT part is unused and in its original packaging.
Return procedure for TS3021IYLT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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