Overview
The NA555P is a precision timer integrated circuit produced by Texas Instruments. It is widely used in various electronic applications for generating precise timing and oscillation. Known for its versatility and reliability, this IC can function in both monostable and astable modes, making it suitable for a range of developments, from simple timers to complex waveform generation applications. The NA555P operates across a wide voltage range and features a high degree of stability, making it a preferred choice for engineers and hobbyists alike.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | 8-pin DIP (Dual In-line Package) | |
| Operating Temperature Range | -40 to 105 | °C |
| Supply Voltage | 4.5 to 15 | V |
| Output Drive Capability | Up to 200mA | |
| Timing Range | From microseconds to hours | |
| Power Consumption | Typically 3mW | |
| RoHS Status | Lead Free / RoHS Compliant |
Key Features
- Timing from microseconds to hours
- Astable or monostable operation
- Adjustable duty cycle
- TTL-compatible output can sink or source up to 200mA
- High stability with 1% timing accuracy
- Low power consumption, typically 3mW
- Compact 8-pin DIP package
Applications
- Timer applications for automotive electronics
- Pulse-width modulation in motor control systems
- Frequency generation for sound synthesis
- Oscillator circuits for signal generation
- Delay circuits in home appliances
- Flashing LED lights for decorative purposes
- Capacitive touch sensing applications
- Waveform generation in communication devices
Q & A
- Q: What is the maximum output current of the NA555P?
A: The NA555P can provide up to 200mA output current.
- Q: Can I use this IC at a voltage lower than 4.5V?
A: No, the NA555P requires a minimum supply voltage of 4.5V to operate accurately.
- Q: How do I calculate the timing intervals for my application?
A: You can use the formulas provided in the datasheet which relate the timing resistors and capacitor values to the output pulse width and frequency.
- Q: Is the NA555P suitable for low-power applications?
A: The NA555P has low power consumption, but for ultra-low power needs, consider using the LM555 or LMC555 models.
- Q: Can the output of the NA555P drive a relay?
A: Yes, it can drive small relays. However, for larger relays, you may need an intermediate transistor stage to handle the load.
- Q: What is the operating temperature range of the NA555P?
A: The NA555P operates within a temperature range of -40°C to 105°C.
- Q: What package type does the NA555P come in?
A: The NA555P comes in an 8-pin DIP (Dual In-line Package) configuration.
- Q: Is the NA555P RoHS compliant?
A: Yes, the NA555P is Lead Free / RoHS Compliant.
- Q: What are the typical applications of the NA555P?
A: The NA555P is used in timer applications, pulse-width modulation, frequency generation, oscillator circuits, delay circuits, and more.
- Q: How does the NA555P operate in monostable and astable modes?
A: In monostable mode, the IC generates a single output pulse triggered by a low signal at the trigger pin. In astable mode, it continuously oscillates between high and low states, creating a square wave output.
