Texas Instruments TLV3701IDBVT

Overview

TLV3701IDBVT from Texas Instruments is a single-channel nanopower comparator with push-pull CMOS output, designed for ultra-low-quiescent-current sensing in battery-powered systems. It operates from 2.7V to 16V, features rail-to-rail input range (–0.1V to VCC + 5V), draws only 560 nA supply current per channel, and supports industrial temperature range (–40°C to +125°C). It is used in portable battery monitoring where supply current and reverse-battery robustness are critical.

For engineers reviewing the TLV3701IDBVT datasheet, TLV3701IDBVT pinout, TLV3701IDBVT application, or TLV3701IDBVT equivalent, this page delivers verified electrical specs, SOT-23 pin mapping, real-world use cases in medical and security systems, and two confirmed alternative comparators with documented functional and parametric differences.

Technical Context

The TLV3701IDBVT implements a precision nanopower comparator core with internal power-on-reset (POR) that holds output low for up to 3 ms during supply ramp-up. Its input stage supports over-the-rail operation - inputs may exceed VCC by up to 5 V without damage - and includes fail-safe input clamping independent of supply voltage.

It uses a push-pull CMOS output stage eliminating external pull-up resistors, enabling direct interface with logic gates or microcontroller GPIOs. Input offset voltage is 250 µV (typ), hysteresis is 1–5 mV (typ), and propagation delay is 16–45 µs depending on overdrive, all specified across –40°C to +125°C.

Key Specifications

Pinout & Package

TLV3701IDBVT is housed in a 5-pin SOT-23 package (2.9 mm × 2.8 mm), optimized for space-constrained portable PCBs. The package is RoHS-compliant, tape-and-reel delivered (3,000 pcs/reel), and rated for surface-mount reflow.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3701IDBVT, TLV3701CDBVT trades temperature range for lower cost while retaining identical performance in benign environments, whereas TLV3401IDBVT reduces supply current slightly but sacrifices push-pull drive capability - requiring layout changes and additional BOM items.

Availability

TLV3701IDBVT is available at Aetrix Electronics and suitable for portable battery monitoring, consumer medical electronics, security detection systems, and handheld instruments requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLV3701IDBVT 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 delivering analog, embedded processing, and connectivity solutions with emphasis on power efficiency, reliability, and broad design support infrastructure.

The TLV370x family was engineered specifically for ultra-low-power sensing applications - targeting battery-operated, portable, and energy-harvesting systems where nanoscale quiescent current and robust input tolerance are primary design constraints.

FAQ

What is the maximum input voltage allowed on TLV3701IDBVT pins?

The TLV3701IDBVT supports an input common-mode voltage range from –0.1 V to VCC + 5 V. Inputs may safely exceed the positive supply rail by up to 5 V - for example, with VCC = 3.3 V, IN+ or IN− can reach 8.3 V without damage. Absolute maximum input voltage is limited to 20 V, whichever is smaller between VCC + 5 V and 20 V. This over-rail capability is confirmed in Section 6.1 and 7.4.1.2 of the datasheet.

Does TLV3701IDBVT have built-in hysteresis?

No, TLV3701IDBVT does not include internal hysteresis. Its typical input hysteresis is 1–5 mV (Section 6.7), which arises from internal design but is not user-adjustable. For stable switching in noisy environments, external hysteresis must be added via positive feedback - e.g., a resistor from OUT to IN+ - as shown in TI application notes SLVA722 and SLOU060. The device's low input bias current (<100 pA) ensures minimal hysteresis error from feedback networks.

Can TLV3701IDBVT operate from a 2.5 V supply?

TLV3701IDBVT is specified for minimum supply voltage of 2.7 V over the full industrial temperature range (–40°C to +125°C), per Section 6.3. At 2.5 V, operation is outside recommended conditions: propagation delay increases significantly, output swing degrades, and input common-mode range shrinks. While it may function at 2.5 V at room temperature, TI does not guarantee performance - use TLV3701IDBVT only within 2.7–16 V for production designs.

Is TLV3701IDBVT pin-compatible with other TLV370x variants?

No, TLV3701IDBVT (5-pin SOT-23) is not pin-compatible with TLV3702 or TLV3704, which use 8-pin MSOP/SOIC and 14-pin SOIC/TSSOP packages respectively. Even the 8-pin SOIC variant of TLV3701 (TLV3701ID) has different pinout: pins 1 and 5 are NC, and GND is on pin 4 instead of pin 2. Only the SOT-23 version (TLV3701IDBVT) uses the 5-pin configuration shown in Figure 5-1 - substitution requires PCB redesign.

What is the purpose of the Power-On Reset (POR) circuit in TLV3701IDBVT?

The POR circuit in TLV3701IDBVT holds the output low for up to 3 ms after VCC crosses 1.5 V during power-up or brownout recovery (Section 7.3.1.1). This prevents undefined or glitchy output states during supply ramping - critical in systems where comparator output directly controls enable signals or safety interlocks. The POR is internal, requires no external components, and is active across the full –40°C to +125°C range.