Texas Instruments TLV6700DDCR

Overview

TLV6700DDCR from Texas Instruments is a micropower, 18-V window comparator IC with integrated 400-mV reference, dual open-drain outputs rated to 18 V, ±0.5% threshold accuracy at 25°C, and 5.5 µA typical quiescent current - used for overvoltage/undervoltage monitoring in battery-powered systems.

For engineers reviewing the TLV6700DDCR datasheet, TLV6700DDCR pinout, TLV6700DDCR application, or TLV6700DDCR equivalent, key selection considerations include its adjustable window thresholds via external resistor dividers, built-in 5.5 mV hysteresis, –40°C to 125°C operation, and compatibility with supply rails from 1.8 V to 18 V.

Technical Context

The TLV6700DDCR integrates two independent high-accuracy comparators sharing a trimmed 400-mV internal reference: INA+ drives OUTA low on undervoltage (V < VIT+ – Vhys), while INB– drives OUTB low on overvoltage (V > VIT+). Both outputs feature open-drain topology with 18-V absolute maximum rating, enabling pull-up to voltages independent of VDD.

Its architecture supports flexible configuration as either a window comparator (using both inputs) or two discrete monitors. Input terminals accept 0–6.5 V regardless of VDD, and internal hysteresis rejects noise without external components - critical for stable fault detection in noisy industrial or portable environments.

Key Specifications

Pinout & Package

TLV6700DDCR is packaged in Thin SOT-23-6 (DDC) with body size 2.90 mm × 1.60 mm, optimized for space-constrained portable designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV6700DDCR, TLV6703DDCR lacks integrated window functionality and requires additional components for dual-threshold detection, while TLV6710DSE offers extended voltage range and improved accuracy but demands PCB redesign due to incompatible WSON-6 packaging and thermal profile.

Availability

TLV6700DDCR is available at Aetrix Electronics and suitable for battery-powered medical devices, industrial power supervisors, smartphone power management circuits, and security sensor systems requiring stable component supply and long-term production continuity.

Supply support for TLV6700DDCR 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 company specializing in analog and embedded processing technologies, with leadership in precision analog ICs and power management solutions.

The TLV6700DDCR belongs to TI's high-voltage comparator product line, designed specifically for robust, low-power voltage monitoring in portable, automotive, and industrial applications where supply rail integrity is mission-critical.

FAQ

What is the function of the internal 400-mV reference in the TLV6700DDCR?

The internal 400-mV reference in the TLV6700DDCR serves as the precise comparison point for both comparators - it sets the nominal positive-going input threshold (VIT+) and enables accurate window detection when combined with external resistor dividers. Its ±0.5% tolerance at 25°C and ±1.0% over temperature ensures consistent trip points across operating conditions without requiring external references or calibration. This reference is shared between INA+ and INB– paths and is integral to the TLV6700DDCR's ability to perform reliable overvoltage and undervoltage monitoring.

Can the TLV6700DDCR monitor a voltage higher than its VDD supply?

Yes, the TLV6700DDCR can monitor voltages higher than its VDD supply - its INA+ and INB– inputs are rated for 0–6.5 V regardless of VDD level, and external resistor dividers scale high-voltage rails (e.g., 24 V, 48 V) down to the 400-mV reference range. The device's input structure isolates the comparator core from overvoltage stress, and its 18-V output rating allows pull-up to voltages exceeding VDD. This capability is explicitly supported in TI's application documentation for the TLV6700DDCR and enables use in multi-rail systems without level-shifting circuitry.

How does the TLV6700DDCR implement hysteresis, and why is it important?

The TLV6700DDCR implements fixed internal hysteresis of 5.5 mV (typical) between its positive- and negative-going input thresholds (VIT+ and VIT–), eliminating the need for external hysteresis resistors. This design prevents output oscillation during slow or noisy input transitions near the trip point - especially critical in battery monitoring or industrial power supervision where supply ripple or EMI could cause false triggering. The hysteresis value is trimmed and stable over temperature, ensuring predictable noise immunity across the full –40°C to 125°C range without design iteration. This feature is inherent to the TLV6700DDCR's architecture and requires no external components.

What are the absolute maximum ratings for the TLV6700DDCR outputs?

The TLV6700DDCR outputs (OUTA and OUTB) have an absolute maximum rating of 20 V - meaning they can safely withstand up to 20 V on the drain terminal even when the device is unpowered or VDD is at 0 V. In normal operation, they are rated for continuous 18-V pull-up, supporting direct interface to higher-voltage logic families or microcontroller GPIOs without level shifters. This rating applies independently of VDD, making the TLV6700DDCR suitable for mixed-voltage systems. Exceeding 20 V risks permanent damage, per TI's Absolute Maximum Ratings table in the TLV6700DDCR datasheet.

Is the TLV6700DDCR pin-compatible with other devices in the TLV67xx family?

No, the TLV6700DDCR is not pin-compatible with other TLV67xx family members - the TLV6703DDCR (single comparator) uses identical SOT-23-6 pinout but repurposes INB– as NC, while the TLV6710DSE (36-V window comparator) uses WSON-6 packaging with different pin assignments. The TLV6700DDCR's specific pin mapping (OUTA/GND/INA+/INB–/VDD/OUTB) is unique to its window-comparator function and cannot be substituted without PCB revision. Always verify pin functions in the "Pin Configuration and Functions" section of the TLV6700DDCR datasheet before board-level replacement.