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LM339PW

Quad differential comparator, 2-30V, open-collector, TSSOP-14

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Manufacturer Part：

LM339PW

Package：

TSSOP-14 (5x6.4mm)

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Description

Product Overview

The LM339PW is a quad differential comparator from TI in TSSOP-14 package. Four independent comparators with open-collector output, 2-30V supply, and input range including ground.

Key Specifications

Channels 4
Output Type Open-collector
Supply Voltage 2-30V
Propagation Delay 1.3us typ
Input Offset 5mV max
Input Bias 50nA max
Iq per Channel 200uA typ
VICR 0 to 28.5V
Temp 0 to 70C

Features

  • Four independent voltage comparators
  • Wide 2-30V single supply operation
  • Open-collector output for wired-OR
  • Input common-mode range includes ground
  • Low input offset voltage: 5mV max
  • Differential input range equals supply voltage
  • Output compatible with TTL, MOS, CMOS
  • Industry-standard pinout

Applications

  • Voltage level detection and monitoring
  • Zero-crossing detection
  • Oscillator and timing circuits
  • Battery monitoring and management
  • Window comparator applications
  • Industrial control and alarm systems

The LM339PW from TI is the industry-standard quad differential comparator in TSSOP-14. With four independent comparators operating from 2-30V, open-collector outputs, and input range including ground, it is the most widely used comparator for voltage monitoring, level detection, and threshold comparison.

Each comparator consists of a differential input pair and an open-collector NPN output. When the non-inverting input exceeds the inverting input, the output transistor turns off (high impedance), requiring an external pull-up resistor. The wide supply range and ground-inclusive input range make it extremely versatile for analog-to-digital interface applications.

Pin Name Function
1 OUT2 Comparator 2 output
2 OUT1 Comparator 1 output
3 VCC Positive supply
4 IN1- Comp 1 inverting input
5 IN1+ Comp 1 non-inverting
6 IN2- Comp 2 inverting
7 IN2+ Comp 2 non-inverting
8 IN3- Comp 3 inverting
9 IN3+ Comp 3 non-inverting
10 IN4- Comp 4 inverting
11 IN4+ Comp 4 non-inverting
12 GND Ground
13 OUT4 Comp 4 output
14 OUT3 Comp 3 output
  • Voltage level monitoring
  • Zero-crossing detection
  • Battery management
  • Window comparator circuits
  • Industrial alarm systems
Manufacturer Part Number Notes
TI LM339B Improved B-version
TI LM393 Dual comparator version
ST LM339 Pin-compatible
ON Semi LM339 Pin-compatible
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Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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