Overview
The LM339D, manufactured by onsemi, is a quad voltage comparator integrated circuit designed for a wide range of electronic applications. This component is particularly valued for its ability to compare voltages and provide a digital output based on the comparison results. It operates efficiently over a broad voltage range and is known for its low power consumption and high-speed response. The LM339D is housed in a SOIC-14 package, making it suitable for surface mount technology (SMT) applications. Its robustness and reliability make it a preferred choice in various industrial, automotive, and consumer electronics applications.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 2 to 36 | V | Single or dual supply |
| Output Current | 20 | mA | |
| Input Offset Voltage | 5 | mV | |
| Response Time | 300 | ns | |
| Operating Temperature | 0 to 70 | °C | |
| Package | SOIC-14 | Surface Mount |
Key Features
- Four independent voltage comparators in a single package.
- Wide range of supply voltage from 2V to 36V.
- Low input bias current of 250 nA.
- Open-collector outputs for wired-OR connections.
- Designed for all forms of logic and voltage comparator applications.
Applications
The LM339D is extensively used in various applications such as battery management systems for monitoring and protection, temperature measurement systems, photoelectric sensors for signal processing, switch mode power supplies for control and protection, and in automatic control systems for voltage comparison and control. Its versatility and efficiency make it an essential component in designing reliable and effective electronic systems.
Q & A
What is the operating voltage range of the LM339D?
The LM339D operates over a voltage range of 2V to 36V, supporting both single and dual supply configurations.
Can the LM339D be used in high-temperature environments?
Yes, the LM339D can operate in temperatures ranging from 0°C to 70°C, making it suitable for various environmental conditions.
What is the significance of the open-collector output in LM339D?
The open-collector output allows for wired-OR connections, enabling multiple outputs to be connected together without additional logic components.
How does the LM339D compare to other voltage comparators?
The LM339D is known for its low power consumption, high-speed response, and wide operating voltage range, making it a versatile choice for many applications.
What are the typical applications of the LM339D?
Typical applications include battery management, temperature measurement, photoelectric sensors, switch mode power supplies, and automatic control systems.
Is the LM339D suitable for surface mount technology?
Yes, the LM339D comes in a SOIC-14 package, which is compatible with surface mount technology.
What is the input bias current of the LM339D?
The input bias current is 250 nA, which is relatively low and beneficial for reducing power consumption in circuits.
Can the LM339D be used in dual supply configurations?
Yes, the LM339D supports dual supply configurations, enhancing its flexibility in various circuit designs.
What is the response time of the LM339D?
The response time of the LM339D is 300 ns, ensuring quick and efficient voltage comparison.
What package does the LM339D come in?
The LM339D is available in a SOIC-14 package, suitable for surface mount applications.
