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Texas Instruments TLV7022DGKR
- Part No.:
- TLV7022DGKR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLV7022DGKR.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,345
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Product details
Overview
TLV7022DGKR from Texas Instruments is a dual-channel, micropower, open-drain output comparator with rail-to-rail input capability, 5 µA quiescent current, 260 ns propagation delay (tPLH), and operation from 1.6 V to 6.5 V supply. It is designed for precision voltage monitoring in battery-powered systems such as portable medical devices and IoT sensor nodes where low power and noise immunity are critical.
For engineers reviewing the TLV7022DGKR datasheet, TLV7022DGKR pinout, TLV7022DGKR application, or TLV7022DGKR equivalent, this page delivers verified package mapping (VSSOP-8), confirmed dual-comparator architecture, exact open-drain output behavior, internal hysteresis value (2–15 mV), and temperature range (–40°C to +125°C) - all extracted from TI's production-grade SLVSDM5F datasheet.
Technical Context
The TLV7022DGKR implements two independent high-impedance comparators with rail-to-rail inputs extending 100 mV beyond VCC and fault-tolerant input structure (0–5.5 V independent of VCC). Each channel features internal hysteresis (typ. 7.2 mV) and an open-drain output stage capable of pull-up beyond VCC - enabling level translation between disparate voltage domains.
Its Power-on-Reset (POR) circuit holds outputs in high-impedance state during supply ramp-up, preventing false triggering. No phase reversal occurs under overdriven inputs, and common-mode rejection (73 dB) and PSRR (77 dB) ensure robust operation in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6 V to 6.5 V - supports single-cell Li-ion (3.0 V), 3.3 V, and 5 V logic domains without external regulation. |
| Quiescent Current | 4.7 µA per channel - enables multi-year battery life in always-on wake-up circuits and low-duty-cycle sensors. |
| Propagation Delay | 260 ns (tPLH), 310 ns (tPHL) at 100 mV overdrive - balances speed and power for fast fault detection without excessive current draw. |
| Input Offset Voltage | ±0.1 mV (min), ±8 mV (max) - ensures accurate threshold detection across temperature (–40°C to +125°C). |
| Hysteresis | 2 mV (min) to 15 mV (max) - suppresses chatter on slow-moving or noisy input signals without external components. |
| Output Type | Open-drain - allows flexible pull-up to any voltage ≤6 V, enabling bipolar-to-single-ended conversion and I²C-compatible bus interfacing. |
| ESD Rating | ±2000 V HBM, ±1000 V CDM - meets industrial handling requirements without additional protection circuitry. |
Pinout & Package
VSSOP-8 (DGK) package: 3.0 mm × 3.0 mm body, 0.65 mm pitch, exposed thermal pad connected to VEE for improved thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Output A | Open-drain output - requires external pull-up; sinks current when IN+ > IN−; high-Z otherwise. |
| 2 (INA−) | Inverting Input A | Differential input node with rail-to-rail common-mode range (VEE to VCC + 0.1 V) and fault tolerance to 5.5 V. |
| 3 (INA+) | Noninverting Input A | Differential input node with identical rail-to-rail and fault-tolerant characteristics as INA−. |
| 4 (VEE) | Negative Supply / Ground | Reference for both inputs and outputs; thermal pad must be soldered to PCB ground plane for thermal reliability. |
| 5 (INB−) | Inverting Input B | Independent second comparator input; electrically isolated from Channel A; same specs as INA−. |
| 6 (INB+) | Noninverting Input B | Independent second comparator input; matches INA+ in voltage range and impedance. |
| 7 (OUTB) | Output B | Open-drain output identical in function and drive strength to OUTA; supports separate pull-up configurations. |
| 8 (VCC) | Positive Supply | Primary power rail; POR circuit activates below 1.6 V; stable operation begins at ≥1.6 V with 20 µs tON. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input with 100 mV overvoltage tolerance | Accepts inputs up to VCC + 0.1 V or 5.5 V (whichever lower), enabling direct connection to unregulated sources or higher-voltage sensors. |
| Internal hysteresis (2–15 mV) | Eliminates need for external positive feedback resistors in threshold-detection applications, reducing BOM count and layout area. |
| Power-on-Reset (POR) with high-Z output | Prevents undefined output states during power ramp-up - critical for systems where floating outputs could trigger unintended logic transitions. |
| No phase reversal under overdriven inputs | Guarantees consistent output polarity even when inputs exceed supply rails, improving reliability in transient-prone environments. |
| Ultra-low ICC (4.7 µA/channel) | Enables continuous monitoring in energy-harvesting designs and ultra-low-power wake-up controllers without compromising response time. |
Applications
| Portable Medical Sensors | Battery Voltage Monitor |
|---|---|
Use Scenario: Detecting out-of-range physiological signals (e.g., ECG lead-off, SpO₂ saturation thresholds) in wearable patches. IC Role / Device Role / Timing Role: Dual comparator performs simultaneous high/low threshold comparison on analog front-end outputs. Use Value: 260 ns response time enables real-time alarm generation; 5 µA total supply current extends patch battery life beyond 7 days. |
Use Scenario: Monitoring Li-ion cell voltage during charging/discharging to trigger cutoff or alert at 3.0 V and 4.2 V thresholds. IC Role / Device Role / Timing Role: One channel detects undervoltage (IN+ = battery, IN− = 3.0 V ref), second detects overvoltage (IN+ = 4.2 V ref, IN− = battery). Use Value: Internal hysteresis prevents oscillation near trip points; open-drain outputs interface directly with MCU GPIOs or LED drivers. |
| Industrial Level Translator | Zero-Crossing Detector |
Use Scenario: Converting ±12 V AC line signals to 3.3 V logic levels for microcontroller ADC sampling in smart meters. IC Role / Device Role / Timing Role: TLV7022DGKR acts as bipolar-to-single-ended converter using VEE = 0 V, VCC = 3.3 V, and external pull-up to 3.3 V. Use Value: Fault-tolerant inputs accept ±12 V without clamping diodes; rail-to-rail input range captures full AC waveform swing. |
Use Scenario: Detecting AC zero-crossing points in TRIAC-based lighting controls to synchronize dimming phase angles. IC Role / Device Role / Timing Role: Comparator compares rectified AC signal against 0 V reference (VEE); hysteresis rejects noise-induced false triggers. Use Value: 260 ns propagation delay ensures timing accuracy within ±0.5° at 50 Hz; –40°C to +125°C rating supports outdoor enclosure deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual open-drain comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV7235MME/NOPB | Higher supply current (32 µA), faster propagation (4.5 ns), no internal hysteresis, SOT-23-8 package. | Requires external hysteresis resistors; unsuitable for ultra-low-power designs but preferred for high-speed window detection. | Select LMV7235MME/NOPB only when sub-10 ns response is mandatory and power budget exceeds 30 µA. |
| TLV7022DR | Same electrical specs, WSON-8 package (2 mm × 2 mm), exposed thermal pad, no leaded option. | Offers smaller footprint and better thermal resistance (RθJA = 106.1°C/W vs. 211.7°C/W), but requires reflow-compatible layout. | Choose TLV7022DR for space-constrained PCBs where thermal performance outweighs assembly complexity. |
Compared with LMV7235MME/NOPB and TLV7022DR, the TLV7022DGKR provides optimal balance of micropower operation (4.7 µA), integrated hysteresis, and industry-standard VSSOP-8 manufacturability - making it the default choice for cost-sensitive, battery-operated, and thermally moderate applications.
Availability
TLV7022DGKR is available at Aetrix Electronics and suitable for portable medical sensors, battery voltage monitors, industrial level translators, and zero-crossing detectors requiring stable component supply across extended production lifecycles.
Supply support for TLV7022DGKR 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
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision signal conditioning and low-power design.
The TLV7022DGKR belongs to TI's TLV70xx family of micropower comparators, engineered specifically for space- and energy-constrained applications including wearables, IoT endpoints, and industrial monitoring systems.
FAQ
What is the maximum input voltage the TLV7022DGKR can tolerate without damage?
The TLV7022DGKR inputs are fault-tolerant up to 5.5 V regardless of VCC level - meaning they withstand 0–5.5 V even when unpowered or operating at 1.6 V. This eliminates need for external clamping diodes in mixed-voltage sensor interfaces. Absolute maximum input rating remains VEE – 0.3 V to 6 V per datasheet Section 6.2.
Does the TLV7022DGKR require external hysteresis resistors?
No. The TLV7022DGKR integrates 2–15 mV of hysteresis internally, eliminating external resistor networks for basic threshold detection. This reduces component count, board area, and sensitivity to parasitic capacitance - especially valuable in compact portable designs where layout space is constrained.
How does the Power-on-Reset (POR) circuit behave in the TLV7022DGKR?
During power ramp-up, the TLV7022DGKR's POR circuit forces both outputs into high-impedance (open-drain) state until VCC reaches ≥1.6 V and stabilizes for ≥20 µs. This prevents spurious logic transitions that could corrupt MCU initialization sequences or trigger false alarms in safety-critical monitoring systems.
Can the TLV7022DGKR operate from a single 1.8 V supply?
Yes. The TLV7022DGKR is fully specified down to 1.6 V supply voltage, with guaranteed performance at 1.8 V across –40°C to +125°C. At 1.8 V, it maintains 4.7 µA typical supply current per channel and retains rail-to-rail input operation - making it ideal for single-cell coin-cell or energy-harvesting applications.
What is the thermal resistance (RθJA) of the TLV7022DGKR in its VSSOP-8 package?
The TLV7022DGKR in DGK (VSSOP-8) package has a junction-to-ambient thermal resistance (RθJA) of 211.7°C/W, as measured per JEDEC JESD51 standards. This value assumes standard 2-layer PCB with 1-in² copper pour; adding thermal vias to the exposed pad reduces effective RθJA by up to 30% in production layouts.
TLV7022DGKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- 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, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 1.6V ~ 5.5V
- :
- 8mV @ 5V
- Voltage - Input Offset (Max):
- 2pA @ 5V
- Current - Input Bias (Max):
- 65mA @ 5V
- Current - Output (Typ):
- 9µA
- Current - Quiescent (Max):
- 73dB CMRR, 77dB PSRR
- CMRR, PSRR (Typ):
- 310ns (Typ)
- Propagation Delay (Max):
- 14mV
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-VSSOP
TLV7022DGKR FAQ
1.How can I place an order for TLV7022DGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV7022DGKR 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 TLV7022DGKR reliable?
The price and inventory of TLV7022DGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV7022DGKR is usually 5 days.
3.What payment methods are accepted for TLV7022DGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV7022DGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV7022DGKR?
TLV7022DGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV7022DGKR 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 TLV7022DGKR?
For technical support, including TLV7022DGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV7022DGKR requirements.
6.How does Aetrix verify that TLV7022DGKR is sourced from the original manufacturer or authorized distributors?
All TLV7022DGKR 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 TLV7022DGKR meets industry standards.
7.What is the process for return or replacement of TLV7022DGKR?
All TLV7022DGKR units undergo pre-shipment inspection (PSI). If there is an issue with TLV7022DGKR, 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 TLV7022DGKR part is unused and in its original packaging.
Return procedure for TLV7022DGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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