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STMicroelectronics TS7211BILT
- Part No.:
- TS7211BILT
- Manufacturer:
- STMicroelectronics
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TS7211BILT.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
TS7211BILT from STMicroelectronics is a micropower rail-to-rail input comparator with push-pull output, specified for operation from 2.7V to 10V supply, 6µA typical supply current at 5V, 0.5µs response time (100mV overdrive), and SOT23-5 package. It delivers precision threshold detection in battery-constrained systems requiring low quiescent current and wide common-mode range.
For engineers reviewing the TS7211BILT datasheet, TS7211BILT pinout, TS7211BILT application, or TS7211BILT equivalent, this device is selected for ultra-low-power analog sensing where rail-to-rail input swing, fast propagation delay under light load, and industrial temperature stability (-40°C to +85°C) are critical design requirements.
Technical Context
The TS7211BILT employs BiCMOS process technology to achieve sub-1nA input bias current and rail-to-rail input voltage range extending 0.3V beyond both supply rails. Its push-pull output stage eliminates need for external pull-up resistors and supports direct interfacing with CMOS logic inputs.
It maintains consistent 7–18mV input offset voltage across 2.7V/5V/10V supplies and -40°C to +85°C ambient, with 6µV/°C drift and >70dB CMRR at 5V - enabling reliable high-side/low-side voltage monitoring without trimming in portable power management circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 10V - supports single-cell Li-ion, dual-cell alkaline, and 5V/10V industrial rails without level-shifting. |
| Supply Current (Typ.) | 6µA @ 5V - enables multi-year battery life in always-on wake-up comparators (e.g., coin-cell-powered sensors). |
| Propagation Delay | 0.5µs @ 100mV overdrive, CL = 50pF - sufficient for <2MHz window comparator clocking or fast battery undervoltage lockout. |
| Input Offset Voltage | 10mV (max, TS7211B grade) - sets minimum detectable voltage differential in precision reference comparison. |
| Common-Mode Range | (VCC−) −0.3V to (VCC+) +0.3V - allows direct sensing of signals at ground or supply rail without attenuation networks. |
| Output Type | Push-pull - drives CMOS/TTL loads directly; no external pull-up needed, reducing BOM count and board space. |
| ESD Rating | 2kV HBM / 200V MM - meets IEC 61000-4-2 Level 2 for handheld and portable equipment handling. |
Pinout & Package
SOT23-5 (Tiny Package), 5-pin surface-mount package with 0.95mm pitch; footprint compatible with JEDEC MO-178AB standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC− (GND) | Negative supply terminal; referenced for all input/output voltage measurements and ESD protection paths. |
| 2 | IN+ | Non-inverting input; accepts rail-to-rail common-mode signals up to VCC+ +0.3V and down to VCC− −0.3V. |
| 3 | IN− | Inverting input; matched to IN+ for offset and bias current; used for threshold reference or feedback path. |
| 4 | VCC+ | Positive supply terminal; powers internal BiCMOS core and output stage; decoupling capacitor required near pin. |
| 5 | OUT | Push-pull output; sinks up to 5mA or sources up to 5mA; logic-compatible with 1.8V/3.3V/5V CMOS inputs. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Enables direct sensing of signals at GND or VCC without resistor dividers or level shifters. |
| 6µA supply current @ 5V | Reduces average system power by >90% vs. standard comparators, critical for energy-harvesting nodes. |
| 0.5µs propagation delay | Supports real-time battery charge-state transitions and fast fault detection in portable chargers. |
| Industrial temperature range | Guaranteed operation from −40°C to +85°C without derating - suitable for automotive cabin modules and outdoor IoT. |
| Push-pull output | Eliminates external pull-up resistor, saving PCB area and eliminating parasitic RC delays in high-speed edge detection. |
Applications
| Battery Voltage Monitoring | PCMCIA Card Detection |
|---|---|
Use Scenario: Detecting low-battery condition in lithium coin-cell powered wireless sensor nodes before data loss occurs. IC Role / Device Role / Timing Role: Threshold comparator comparing battery voltage against precision reference to assert wake-up interrupt. Use Value: 6µA quiescent current extends shelf life >5 years; rail-to-rail input ensures accurate detection even at end-of-discharge (≤2.7V). | Use Scenario: Detecting insertion/removal of PCMCIA cards in legacy industrial laptops and data acquisition units. IC Role / Device Role / Timing Role: Hot-swap presence detector generating clean logic-level signal for host controller GPIO. Use Value: Push-pull output avoids pull-up conflicts on shared bus lines; 0.5µs delay ensures reliable card enumeration timing. |
| Mobile Phone Keypad Scan | Security System Tamper Detection |
Use Scenario: Scanning mechanical keypad matrix in GSM handsets using low-power active-low row/column strobes. IC Role / Device Role / Timing Role: High-speed comparator converting analog key press voltage into digital scan pulse. Use Value: 100mV overdrive response time ensures <1ms key debounce; SOT23-5 footprint fits tight keypad controller layout. | Use Scenario: Monitoring continuity of tamper-evident foil loops on enclosures in alarm panels and access control hardware. IC Role / Device Role / Timing Role: Open-circuit detector comparing loop voltage drop against reference to trigger intrusion alert. Use Value: 2kV HBM ESD rating withstands field handling; rail-to-rail input accommodates varying loop resistance and supply tolerances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar micropower rail-to-rail comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV331M5X/NOPB | Higher supply current (17µA typ.), open-drain output, no rail-to-rail input (VCM = 0 to VCC−1.5V) | Requires external pull-up; unsuitable for low-VCC (<3V) or ground-referenced sensing | Select only if open-drain interface is mandatory and supply >3.3V is available. |
| MAX9021AUT+T | Lower offset (1.5mV max), but 12µA supply current; push-pull output; same SOT23-5 package | Better accuracy at cost of 2× quiescent power; not qualified for −40°C operation | Prefer for precision battery gauging where temperature range is limited to 0°C–70°C. |
Compared with LMV331M5X/NOPB and MAX9021AUT+T, the TS7211BILT uniquely balances ultra-low power (6µA), full rail-to-rail input, push-pull output, and industrial temperature support - making it optimal for long-life, wide-supply, and space-constrained embedded sensing.
Availability
TS7211BILT is available at Aetrix Electronics and suitable for battery-powered systems, PCMCIA card interfaces, mobile communication peripherals, and security system tamper detection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TS7211BILT 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 TS7211 belongs to ST's micropower analog comparator product line, engineered specifically for energy-constrained portable and battery-operated applications demanding precision, speed, and minimal footprint.
FAQ
What is the maximum allowable supply voltage for TS7211BILT?
The absolute maximum supply voltage is 12V, but the device is fully specified and guaranteed over 2.7V to 10V. Operating above 10V voids parametric guarantees and risks exceeding junction temperature limits due to increased power dissipation in the SOT23-5 package.
Does TS7211BILT require an external pull-up resistor on its output?
No. The TS7211BILT features a true push-pull output stage capable of sourcing and sinking up to 5mA. Unlike open-drain comparators, it drives logic-high and logic-low states actively, eliminating the need for external pull-up components and associated parasitic delays.
Can TS7211BILT operate with a single 1.8V supply?
No. The minimum specified supply voltage is 2.7V. At 1.8V, internal biasing fails, resulting in undefined output behavior, excessive propagation delay (>10µs), and potential latch-up. For 1.8V systems, consider ST's TS881 series or TI's TLV3691.
How does the input offset voltage change with common-mode voltage?
Over the full common-mode range (VCC− −0.3V to VCC+ +0.3V), input offset voltage varies ≤±1mV for TS7211B grade at 25°C, as confirmed by Figure 8 (VIO vs VICM & Temperature). This flatness ensures stable threshold accuracy across rail-to-rail input swings without calibration.
TS7211BILT 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 (±):
- 2.7V ~ 10V
- :
- 15mV @ 5V
- Voltage - Input Offset (Max):
- 3pA @ 5V
- Current - Input Bias (Max):
- 30mA
- Current - Output (Typ):
- 12µA
- Current - Quiescent (Max):
- 70dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-23-5
TS7211BILT FAQ
1.How can I place an order for TS7211BILT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS7211BILT 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 TS7211BILT reliable?
The price and inventory of TS7211BILT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS7211BILT is usually 5 days.
3.What payment methods are accepted for TS7211BILT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS7211BILT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS7211BILT?
TS7211BILT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS7211BILT 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 TS7211BILT?
For technical support, including TS7211BILT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS7211BILT requirements.
6.How does Aetrix verify that TS7211BILT is sourced from the original manufacturer or authorized distributors?
All TS7211BILT 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 TS7211BILT meets industry standards.
7.What is the process for return or replacement of TS7211BILT?
All TS7211BILT units undergo pre-shipment inspection (PSI). If there is an issue with TS7211BILT, 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 TS7211BILT part is unused and in its original packaging.
Return procedure for TS7211BILT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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