LMC555CMM/NOPB

Overview

Product Category

The LMC555CMM/NOPB belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used as a timer or oscillator in various electronic applications.

Characteristics

• The LMC555CMM/NOPB is a highly accurate and stable timing device.
• It operates over a wide range of supply voltages, making it versatile for different power requirements.
• This IC offers low power consumption, making it suitable for battery-powered applications.
• It has a high output current capability, allowing it to drive various loads.
• The LMC555CMM/NOPB exhibits excellent temperature stability, ensuring reliable performance in different environmental conditions.

Packaging

The LMC555CMM/NOPB is available in a miniature surface-mount package (CMM) with no lead plating (NOPB). This package ensures easy integration onto circuit boards and provides protection against external factors.

Essence

The essence of the LMC555CMM/NOPB lies in its ability to accurately measure and control time intervals, making it an essential component in numerous electronic devices.

Packaging/Quantity

The LMC555CMM/NOPB is typically sold in reels containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specification Parameters

The LMC555CMM/NOPB features the following complete parameter types:

1. Supply Voltage Range:

   • Minimum: 2 V
   • Maximum: 18 V

2. Operating Temperature Range:

   • Minimum: -40°C
   • Maximum: 125°C

3. Timing Capacitance Range:

   • Minimum: 1 pF
   • Maximum: 1000 µF

4. Output Current:

   • Minimum: 10 mA
   • Maximum: 200 mA

5. Timing Error:

   • Minimum: ±1%
   • Maximum: ±10%

6. Trigger Voltage Range:

   • Minimum: 0.33 VCC
   • Maximum: 0.67 VCC

7. Reset Voltage Range:

   • Minimum: 0.7 V
   • Maximum: VCC

Pin Configuration

The LMC555CMM/NOPB has a standard pin configuration with the following connections:

1. GND (Ground): Connected to the ground reference of the circuit.
2. TRIG (Trigger): Used to initiate the timing cycle.
3. OUT (Output): Provides the timed output signal.
4. RESET (Reset): Resets the timing cycle when triggered.
5. CTRL (Control): Allows external control of the timing cycle.
6. THR (Threshold): Determines the end of the timing cycle.
7. DIS (Discharge): Discharges the timing capacitor.

Functional Characteristics

The LMC555CMM/NOPB offers the following functional characteristics:

• Accurate timing: The IC provides precise time intervals based on the external components connected to its pins.
• Adjustable frequency: By selecting appropriate resistors and capacitors, the LMC555CMM/NOPB can generate a wide range of frequencies.
• Monostable or astable operation: It can be configured as a monostable (one-shot) or astable (oscillator) circuit, depending on the application requirements.
• Wide supply voltage range: The IC operates reliably over a broad range of supply voltages, enhancing its versatility.
• Low power consumption: The LMC555CMM/NOPB consumes minimal power, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages

• High accuracy and stability in timing applications.
• Versatile operating voltage range.
• Low power consumption.
• High output current capability.
• Excellent temperature stability.

Disadvantages

• Limited timing resolution compared to some specialized timer ICs.
• Requires external components for timing configuration.

Working Principle

The LMC555CMM/NOPB operates based on the principles of an astable or monostable multivibrator. In astable mode, it continuously oscillates between two voltage levels, generating a square wave output. In monostable mode, it produces a single pulse of a specific duration when triggered.

The timing cycle is determined by the values of resistors and capacitors connected to the appropriate pins of the IC. The charging and discharging of the timing capacitor control the timing intervals.

Detailed Application Field Plans

The LMC555CMM/NOPB finds extensive application in various electronic fields, including:

1. Timing circuits: Used in applications requiring precise time delays, such as timers, clocks, and sequential logic circuits.
2. Pulse generation: Generates accurate pulses for applications like frequency counters, PWM (Pulse Width Modulation) circuits, and waveform generators.
3. Oscillators: Configured as