EmbeddedRelated.com
    Parts    LMV331W5-7
LMV331W5-7

DIOLMV331W5-7

Diodes Incorporated
Comparator Standard (General Purpose) Open-Collector SOT-25
Active
Datasheet Digi-Key Compare Prices

Overview

The LMV331W5-7 is a general-purpose, low-voltage single comparator designed for space-constrained applications requiring an open-collector output. It operates on a supply voltage range of 2.7V to 5.5V and features a low quiescent current of 40uA typical, making it suitable for battery-powered systems. The open-collector output stage allows for level shifting and easy interfacing with different logic families.

Why Choose This Part

The SOT-25 package offers a significant footprint reduction for single-channel comparator needs compared to standard SOIC options. Its wide operating temperature range of -40 to 125 degrees Celsius ensures reliability in industrial and automotive environments. The device provides a balance of low power consumption and high output drive capability of up to 84mA at 5V.

Applications

Battery Monitoring
Utilizing the low power consumption and 2.7V minimum supply voltage for threshold detection in portable devices.
Logic Level Shifting
Using the open-collector output to interface low-voltage analog signals with higher voltage digital logic rails.
Mobile Communications
Implementing signal squelch or peak detection in handheld radio and mobile phone circuits.
Zero-Crossing Detection
Leveraging the 450ns propagation delay for low-speed timing synchronization in power management.

Key Specifications

Type Standard (General Purpose)
Output Type Open-Collector
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
Number of Elements 1
Operating Temperature -40degC ~ 125degC
Current - Output (Typ) 84mA @ 5V
Propagation Delay (Max) 450ns
Supplier Device Package SOT-25
Current - Quiescent (Max) 200uA
Current - Input Bias (Max) 0.25uA @ 5V
Voltage - Input Offset (Max) 7mV @ 5V
Voltage - Supply, Single/Dual (+/-) 2.7V ~ 5.5V

Getting Started

To evaluate this part, prototype on a SOT-25 to DIP adapter board for breadboard testing. Ensure a pull-up resistor is connected to the open-collector output pin to establish the high-level logic voltage. Keep bypass capacitors close to the VDD pin to minimize noise in high-speed switching transitions.

Also Consider

TLV3201 TITexas Instruments - Higher speed alternative with 40ns propagation delay and push-pull output if open-collector is not required.