Texas Instruments TLV3701IDR

Overview

TLV3701IDR from Texas Instruments is a nanopower, single-channel comparator with push-pull CMOS output, 560 nA supply current per channel, input common-mode range from –0.1 V to V_CC + 5 V, and operation across –40°C to +125°C. It enables ultra-low-power battery monitoring in portable medical devices and handheld instruments where quiescent current and reverse-battery robustness are critical.

For engineers reviewing the TLV3701IDR datasheet, TLV3701IDR pinout, TLV3701IDR application, or TLV3701IDR equivalent, key selection criteria include its 560 nA supply current, rail-overlapping input range, push-pull output eliminating external pull-up, reverse-battery protection up to 20 V, and SOT-23-5 industrial-grade packaging.

Technical Context

The TLV3701IDR implements a precision nanopower comparator core with internal power-on-reset (POR) that holds output low for ≤3 ms during V_CC ramp-up from 1.5 V threshold. Its input stage supports fail-safe operation - inputs remain high-impedance and undamaged even when biased up to 16 V while V_CC is unpowered or below 2.5 V.

It features over-the-rail input capability (–0.1 V to V_CC + 5 V), enabling direct sensing of voltages exceeding the supply rail without external level-shifting. The push-pull CMOS output delivers rail-to-rail sourcing/sinking (≤80 mV drop at 50 µA) and eliminates need for external pull-up resistors, reducing system power and component count.

Key Specifications

Pinout & Package

TLV3701IDR is packaged in a 5-pin SOT-23 (DBV) package measuring 2.9 mm × 2.8 mm, optimized for space-constrained portable designs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar nanopower comparator applications.

Compared with TLV3701CDBVR, TLV3701IDR provides guaranteed operation down to –40°C for outdoor or automotive-adjacent use; compared with TLV3601IDBVR, it reduces supply current by 94% at the cost of ~1000× slower response - making it optimal for duty-cycled, battery-limited sensing.

Availability

TLV3701IDR 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 long-term industrial-grade availability.

Supply support for TLV3701IDR 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, embedded processing, and power management technologies, with decades of expertise in precision signal conditioning and low-power design.

The TLV370x product line was engineered specifically for ultra-low-power sensing applications - delivering nanopower operation, over-rail inputs, and robust protection features essential for battery-powered portable and medical electronics.

FAQ

What is the maximum input voltage allowed on the TLV3701IDR inputs?

The TLV3701IDR inputs tolerate voltages from –0.1 V to V_CC + 5 V, with absolute maximum rating of 20 V regardless of V_CC state. This over-rail capability allows direct connection to battery terminals or sensors operating above the supply rail. The device remains undamaged and functional even when V_CC is unpowered, supporting fail-safe operation in power-sequenced systems. Always observe the 20 V absolute maximum limit per Absolute Maximum Ratings table.

Does the TLV3701IDR require an external pull-up resistor on its output?

No, the TLV3701IDR does not require an external pull-up resistor because it features a push-pull CMOS output stage. This output actively drives both high and low states - sourcing up to 50 µA with ≤80 mV drop below V_CC, and sinking up to 50 µA with ≤80 mV rise above GND. Eliminating the pull-up resistor reduces system power consumption, PCB area, and component count - a critical advantage in nanopower designs. The TLV3701IDR output is fully compatible with standard CMOS logic inputs.

What is the purpose of the Power-On Reset (POR) circuit in the TLV3701IDR?

The TLV3701IDR integrates a Power-On Reset (POR) circuit that holds the output low for up to 3 ms after V_CC crosses 1.5 V during power-up or brownout recovery. This ensures a known, safe output state during supply ramp-up, preventing spurious logic transitions or false triggers in downstream circuitry. The POR is active only during transient supply conditions and does not affect normal operation once V_CC stabilizes above minimum. This feature is especially valuable in battery-powered systems where supply voltage may rise slowly or intermittently.

Can the TLV3701IDR operate from a 2.5 V supply while maintaining full specifications?

Yes, the TLV3701IDR is fully specified from 2.5 V to 16 V single supply across its industrial temperature range (–40°C to +125°C). At 2.5 V, it maintains 560 nA typical supply current, 250 µV typical input offset voltage, and functional over-rail inputs (–0.1 V to 7.5 V). Electrical Characteristics tables in the datasheet explicitly include 2.7 V test conditions, and Recommended Operating Conditions confirm 2.5 V as minimum. Performance metrics such as propagation delay increase slightly at lower V_CC, but all core functionality remains guaranteed.

How does the TLV3701IDR handle reverse battery connection?

The TLV3701IDR includes reverse-battery protection rated up to 20 V, meaning it withstands –20 V applied to V_CC relative to GND without damage or latch-up. This protection is implemented via internal clamping and isolation structures, allowing safe operation even if batteries are inserted backward in consumer devices. Unlike comparators requiring external diodes or FETs for polarity protection, the TLV3701IDR integrates this function - simplifying design, reducing BOM count, and improving field reliability in handheld and portable products where user error is common.