NE555PSRE4

Product Overview

Category: Integrated Circuit (IC)

Use: The NE555PSRE4 is a versatile timer IC that can be used in various applications such as pulse generation, time delay circuits, oscillators, and frequency division. It is widely used in electronic projects and systems where precise timing is required.

Characteristics: - Low power consumption - Wide operating voltage range (3V to 18V) - High output current capability - Adjustable duty cycle - Stable and accurate timing - Easy to use and integrate into circuits

Package: The NE555PSRE4 is available in an 8-pin small outline package (SOIC) which provides compactness and ease of soldering.

Essence: The essence of the NE555PSRE4 lies in its ability to accurately measure and control time intervals, making it an essential component in many electronic devices.

Packaging/Quantity: The NE555PSRE4 is typically sold in reels or tubes containing a quantity of 2500 units per package.

Specifications

• Supply Voltage Range: 3V to 18V
• Operating Temperature Range: -40°C to +85°C
• Timing Capacitance Range: 100pF to 100μF
• Maximum Output Current: 200mA
• Trigger Voltage: 1/3 Vcc
• Reset Voltage: 0.7V
• Threshold Voltage: 2/3 Vcc
• Power Dissipation: 600mW

Detailed Pin Configuration

The NE555PSRE4 has 8 pins, each serving a specific function:

1. GND: Ground reference for the IC.
2. TRIGGER: This pin is used to trigger the timing cycle.
3. OUTPUT: The output pin provides the timed signal.
4. RESET: When this pin is connected to GND, it resets the timing cycle.
5. CONTROL VOLTAGE: This pin allows external control of the timing characteristics.
6. THRESHOLD: It is used to compare the voltage level with the internal reference voltage.
7. DISCHARGE: This pin discharges the timing capacitor during the timing cycle.
8. VCC: Positive supply voltage for the IC.

Functional Features

• Monostable Operation: The NE555PSRE4 can be configured as a monostable multivibrator, producing a single pulse of a specified duration when triggered.
• Astable Operation: It can also function as an astable multivibrator, generating a continuous square wave output.
• Adjustable Timing: The timing interval can be easily adjusted by changing the values of the timing resistor and capacitor.
• High Output Current: The NE555PSRE4 can drive loads up to 200mA, making it suitable for driving various devices directly.
• Stable and Accurate: It provides stable and accurate timing due to its internal voltage references and compensation circuits.

Advantages and Disadvantages

Advantages: - Versatile and widely used in various applications. - Low power consumption makes it suitable for battery-powered devices. - Easy to use and integrate into circuits. - Provides stable and accurate timing.

Disadvantages: - Limited timing range compared to more advanced timer ICs. - May require additional components for certain applications. - Not suitable for high-frequency applications.

Working Principles

The NE555PSRE4 operates based on the charging and discharging of an external timing capacitor through internal resistors. When triggered, the capacitor charges or discharges depending on the configuration, and the timing cycle starts. The internal comparators monitor the voltage levels at the threshold and trigger pins, determining the state of the output accordingly.

Detailed Application Field Plans

The NE555PSRE4 finds extensive use in various electronic applications, including:

1. Timing circuits: It is commonly used to control the timing of events in devices such as timers, clocks, and time delay circuits.
2. Pulse generation: The NE555PSRE4 can generate precise pulses for applications like frequency measurement, PWM (Pulse Width Modulation), and waveform generation.
3. Oscillators: It can be configured as an oscillator to produce square waves with adjustable frequency.
4. LED flashers: The IC is often employed in LED flasher circuits, providing a blinking effect.
5. Motor control: It can be used to control the speed and direction of motors by generating variable frequency signals.

Detailed and Complete Alternative Models

While the NE555PSRE4 is a popular timer IC, there are alternative models available that offer similar functionality. Some notable alternatives include:

1. LM555: A widely used timer IC with similar specifications and pin configuration.
2. TLC555: This low-power version of the NE555 offers reduced power consumption while maintaining compatibility.
3. LMC555: Another low-power variant that provides improved performance in low voltage applications.

These alternative models can be