EmbeddedRelated.com
TLV3402IDR

TITLV3402IDR

Texas Instruments
Comparator Standard (General Purpose) CMOS, Open-Drain 8-SOIC
NRND11,876 in stock

Overview

The TLV3402IDR is a dual-channel, ultra-low-power CMOS comparator designed for battery-powered systems requiring extremely low current consumption. It features a NanoPower design that draws only 0.47 microamps per channel while providing open-drain outputs and a wide operating voltage range from 2.7V to 16V. This device includes integrated reverse battery protection up to 18V, making it exceptionally robust for field-deployed electronics.

Why Choose This Part

The primary advantage is the industry-leading power consumption of 0.47 microamps per channel, which extends operating life in always-on applications. The open-drain output stage supports level shifting and Wired-AND configurations, while the wide supply voltage up to 16V provides flexibility across various battery chemistries. Additionally, the built-in 18V reverse battery protection simplifies power stage design by reducing the need for external protection diodes.

Applications

Portable Medical Equipment
Ideal for battery-operated monitors and diagnostic tools where minimizing idle current is critical for battery longevity.
Remote Wireless Security Sensors
Used in window/door sensors or PIR motion detectors to provide long-term monitoring with minimal power draw.
Handheld Instrumentation
Provides precision threshold detection in mobile multimeters and environment testers without significantly impacting the power budget.
Battery Level Monitoring
Acts as a low-power supervisor to trigger system alerts when battery voltage drops below a specific threshold.

Key Specifications

Type Standard (General Purpose)
Output Type CMOS, Open-Drain
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
CMRR, PSRR (Typ) 88dB CMRR, 105dB PSRR
Number of Elements 2
Operating Temperature -40degC ~ 125degC
Current - Output (Typ) 10mA
Propagation Delay (Max) 300us
Supplier Device Package 8-SOIC
Current - Quiescent (Max) 950nA
Current - Input Bias (Max) 250pA @ 15V
Voltage - Input Offset (Max) 3.6mV @ 15V
Voltage - Supply, Single/Dual (+/-) 2.7V ~ 16V, +/-1.35V ~ 8V

Getting Started

To evaluate this comparator, prototype your circuit on a breadboard using an SOIC-8 to DIP adapter or design a simple PCB with proper decoupling capacitors. Ensure the open-drain output is connected to a pull-up resistor (typically 10k to 100k ohms) tied to the desired logic level. Use a high-impedance multimeter or an oscilloscope with 10x probes to measure performance without loading the ultra-low current circuits.