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Texas Instruments TLV3702CD
- Part No.:
- TLV3702CD
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV3702CD.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,116
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Product details
Overview
TLV3702CD from Texas Instruments is a dual nanopower comparator with push-pull CMOS output, designed for ultra-low-quiescent-current sensing in battery-powered systems. It operates from 2.5V to 16V supply, features rail-to-rail input range (–0.1V to VCC + 5V), draws only 560 nA per channel, and is rated for 0°C to 70°C commercial operation in SOIC-8 package.
For engineers reviewing the TLV3702CD datasheet, TLV3702CD pinout, TLV3702CD application, or TLV3702CD equivalent, key selection criteria include its 560 nA/channel supply current, over-rail input capability, push-pull output eliminating external pull-ups, reverse-battery protection up to 20V, and specified performance across 2.5–16V single-supply operation.
Technical Context
The TLV3702CD implements a precision nanopower comparator architecture with internal power-on-reset (POR) that holds outputs low for ≤3 ms during supply ramp-up. Its input stage supports fail-safe operation beyond VCC-up to VCC + 5V-with bias current rising to ~55 nA in over-rail mode, while maintaining sub-1 pA bias in low common-mode regions.
Each channel delivers push-pull CMOS output capable of sourcing/sinking ≥50 µA with VOL ≤ 80 mV and VOH ≥ VCC – 450 mV across temperature. Propagation delays are 16 µs (typ) at 50 mV overdrive and 12V supply, with hysteresis fixed at 1–5 mV and input offset voltage ≤5000 µV at 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply current per channel | 560 nA typical - enables multi-year battery life in always-on monitoring circuits |
| Input common-mode range | –0.1 V to VCC + 5 V - allows direct sensing of voltages exceeding supply rail without clamping diodes |
| Supply voltage range | 2.5 V to 16 V single supply - supports wide-input industrial and portable battery systems (e.g., 3.7 V Li-ion to 12 V lead-acid) |
| Output type | Push-pull CMOS - eliminates need for external pull-up resistors, reducing BOM count and standby power |
| Input offset voltage (max) | 5000 µV at 25°C - sets minimum detectable differential for threshold applications like battery voltage monitoring |
| Propagation delay (PHL/PLH) | 16 µs typical at 50 mV overdrive - balances speed and power for low-frequency event detection (e.g., low-battery flag assertion) |
| Operating temperature | 0°C to 70°C - qualified for commercial-grade embedded instrumentation and consumer medical devices |
Pinout & Package
TLV3702CD is supplied in an 8-pin SOIC (Small Outline Integrated Circuit) package measuring 4.9 mm × 6.0 mm, with standard JEDEC MS-012AC footprint and gull-wing leads. Thermal resistance RθJA is 116.7°C/W, supporting operation in compact PCB layouts without forced airflow.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | CMOS push-pull output for channel 1 - drives high/low actively; no external pull-up required |
| 2 | 1IN− | Inverting input for channel 1 - accepts signals up to VCC + 5 V; failsafe when VCC = 0 V |
| 3 | 1IN+ | Noninverting input for channel 1 - same over-rail capability and fail-safe behavior as IN− |
| 4 | GND | Analog ground reference - must connect to low-impedance system ground plane to minimize noise coupling |
| 5 | 2IN+ | Noninverting input for channel 2 - independent of channel 1; supports dual-threshold or window-comparator topologies |
| 6 | 2IN− | Inverting input for channel 2 - electrically isolated from channel 1 inputs; enables independent signal conditioning |
| 7 | 2OUT | CMOS push-pull output for channel 2 - fully independent output stage; can drive separate loads or logic domains |
| 8 | VCC | Positive supply pin - accepts 2.5–16 V; requires local 0.01 µF ceramic + 10 µF electrolytic decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Nanopower consumption | 560 nA per channel enables >10-year operation on CR2032 coin cell in wake-on-event sensor nodes |
| Over-rail input capability | Inputs tolerate –0.1 V to VCC + 5 V - permits direct connection to unregulated battery or transducer outputs without level-shifting |
| Reverse battery protection | Withstands –20 V on VCC relative to GND - prevents damage during incorrect battery insertion in handheld instruments |
| Integrated power-on reset | Holds both outputs low for ≤3 ms during VCC ramp-up - ensures known initial state and avoids spurious logic transitions |
| Fail-safe inputs | Inputs remain high-impedance and undamaged even when VCC = 0 V - eliminates sequencing constraints in multi-rail systems |
Applications
| Portable Battery Monitoring | Consumer Medical Electronics |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage during charging/discharging cycles in wireless earbuds or smartwatches. IC Role / Device Role / Timing Role: Dual comparator configures as low-voltage cutoff (channel 1) and overvoltage protection (channel 2) with independent thresholds. Use Value: 560 nA quiescent current extends battery runtime between charges; over-rail inputs directly sense cell voltage without resistor dividers. |
Use Scenario: Detecting electrode contact quality in portable ECG patches by comparing skin impedance against reference thresholds. IC Role / Device Role / Timing Role: One channel compares filtered AC-coupled impedance signal; second channel validates reference stability. Use Value: Push-pull outputs interface directly with microcontroller GPIOs; fail-safe inputs prevent latch-up during electrode attachment/removal. |
| Security Detection Systems | Handheld Instruments |
|
Use Scenario: Triggering alarm on unauthorized enclosure opening using magnetic reed switch and pull-up/pull-down resistors. IC Role / Device Role / Timing Role: Comparator detects switch closure/opening as voltage transition across series resistor; second channel monitors tamper-detection voltage rail. Use Value: Reverse-battery protection guards against accidental polarity reversal during field maintenance; 0°C–70°C rating covers indoor security panel environments. |
Use Scenario: Implementing auto-ranging in digital multimeters by detecting input signal crossing predefined voltage bands. IC Role / Device Role / Timing Role: Dual comparators generate band-select signals for ADC input scaling; hysteresis prevents chatter near transition points. Use Value: 1–5 mV hysteresis suppresses noise-induced false triggers; SOIC-8 package fits high-density front-panel PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual nanopower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3702ID | Same electrical specs but rated for –40°C to 125°C industrial temperature range; higher max input offset (7000 µV) | Required for automotive cabin modules or outdoor industrial sensors where extended temperature operation is mandatory | Select TLV3702ID when ambient operating temperature exceeds 70°C or safety-critical reliability validation is needed |
| TLC3702CD | Higher supply current (470 nA vs. 560 nA), wider VIO spread (1200 µV typ), open-drain output requiring external pull-up | Suitable for legacy designs using open-drain bus interfaces; less optimal for new ultra-low-power systems due to pull-up power loss | Choose TLC3702CD only if existing board layout relies on open-drain wired-OR topology or cost is primary constraint |
Compared with TLV3702ID, TLV3702CD trades extended temperature range for lower cost and tighter offset spec at room temperature; versus TLC3702CD, it delivers true push-pull operation and superior input voltage range-critical for modern battery-powered instrumentation.
Availability
TLV3702CD is available at Aetrix Electronics and suitable for portable battery monitoring, consumer medical electronics, security detection systems, and handheld instruments requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TLV3702CD 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 chain components and low-power design.
The TLV370x family was engineered specifically for ultra-low-power threshold detection in battery-constrained applications-emphasizing nanopower operation, over-rail input robustness, and push-pull output efficiency without external components.
FAQ
What is the maximum input voltage allowed on TLV3702CD pins?
The TLV3702CD supports input voltages from –0.1 V to VCC + 5 V, with absolute maximum rating of ±20 V differential and 0 V to VCC + 5 V (whichever is smaller) on any input pin. This over-rail capability allows direct connection to unregulated sources such as batteries or transducers without level-shifting circuitry, and the device remains undamaged even when VCC is unpowered.
Does TLV3702CD require external pull-up resistors on its outputs?
No, TLV3702CD does not require external pull-up resistors because it features a push-pull CMOS output stage. Each output (1OUT and 2OUT) actively drives high or low depending on the input differential, eliminating standby current through pull-up resistors and simplifying PCB layout. This architecture reduces total system power and component count compared to open-drain comparators.
What is the purpose of the power-on-reset (POR) function in TLV3702CD?
The TLV3702CD incorporates an internal power-on-reset (POR) circuit that holds both outputs low for up to 3 ms after VCC crosses 1.5 V during power-up or power-down transitions. This ensures a known, glitch-free initial state and prevents spurious logic assertions in downstream microcontrollers or latches-critical for reliable startup in battery-powered instrumentation and medical devices using TLV3702CD.
Can TLV3702CD operate from a 2.5 V supply while maintaining full specifications?
Yes, TLV3702CD is fully specified down to 2.5 V single supply across its commercial temperature range (0°C to 70°C). At 2.5 V, it maintains 560 nA typical supply current per channel, input common-mode range of –0.1 V to 7.5 V, and propagation delay within datasheet limits. This makes TLV3702CD suitable for direct integration with low-voltage microcontrollers and energy-harvesting systems.
How does TLV3702CD handle reverse battery connection?
TLV3702CD provides reverse battery protection up to –20 V on the VCC pin relative to GND. Its internal protection circuitry prevents excessive current flow and device damage during incorrect battery installation-a critical feature for handheld instruments and portable medical devices where user error is possible. This eliminates the need for external reverse-polarity protection diodes or MOSFETs in the power path.
TLV3702CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- CMOS, Push-Pull, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 16V, ±1.25V ~ 8V
- :
- 5mV @ 15V
- Voltage - Input Offset (Max):
- 250pA @ 15V
- Current - Input Bias (Max):
- 10mA
- Current - Output (Typ):
- 1µA
- Current - Quiescent (Max):
- 88dB CMRR, 105dB PSRR
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
TLV3702CD FAQ
1.How can I place an order for TLV3702CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV3702CD 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 TLV3702CD reliable?
The price and inventory of TLV3702CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV3702CD is usually 5 days.
3.What payment methods are accepted for TLV3702CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV3702CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV3702CD?
TLV3702CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV3702CD 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 TLV3702CD?
For technical support, including TLV3702CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV3702CD requirements.
6.How does Aetrix verify that TLV3702CD is sourced from the original manufacturer or authorized distributors?
All TLV3702CD 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 TLV3702CD meets industry standards.
7.What is the process for return or replacement of TLV3702CD?
All TLV3702CD units undergo pre-shipment inspection (PSI). If there is an issue with TLV3702CD, 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 TLV3702CD part is unused and in its original packaging.
Return procedure for TLV3702CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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