Overview
The NE555PSR, produced by Texas Instruments, is a single precision timer integrated circuit. It is widely used in various electronic circuits for generating timing signals, due to its versatility and reliability. The NE555 is available in several package types, with the NE555PSR specifically being in the SO (Small Outline) package. This component is known for its ease of use and robust performance across a range of operating conditions.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 4.5 | - | 16 | V |
| Input Voltage (CONT, RESET, THRES, TRIG) | - | - | VCC | V |
| Output Current | - | - | ±225 | mA |
| THRES Voltage Level (VCC = 15 V) | 9.4 | 10 | 10.6 | V |
| TRIG Voltage Level (VCC = 15 V) | 3 | 6 | - | V |
| RESET Voltage Level | 0.7 | 1.1 | - | V |
| Operating Temperature Range | 0 | - | 70 | °C |
| Package Thermal Impedance (θJA) | - | - | 95 | °C/W |
Key Features
- Highly Stable Operation: The NE555PSR operates reliably over a wide range of supply voltages (4.5 V to 16 V) and temperatures (0°C to 70°C).
- Multiple Operating Modes: It can function in both monostable and astable modes, making it versatile for various timing applications.
- Low Power Consumption: The component has a relatively low power consumption, making it suitable for battery-powered devices.
- High Output Current Capability: It can drive loads with currents up to ±225 mA.
- Reset and Trigger Inputs: Features active low reset and trigger inputs for easy control of the timing cycle.
Applications
- Pulse Generation: Used in circuits requiring precise timing pulses, such as in oscillators and pulse generators.
- Timing and Delay Circuits: Ideal for creating delay circuits, one-shot multivibrators, and other timing-related applications.
- Alarm and Security Systems: Can be used in alarm systems and security devices that require timed signals.
- Automotive and Industrial Control Systems: Suitable for use in various control systems due to its robustness and reliability.
Q & A
- What is the operating voltage range of the NE555PSR?
The NE555PSR operates within a supply voltage range of 4.5 V to 16 V. - What are the typical applications of the NE555PSR?
It is commonly used in pulse generation, timing and delay circuits, alarm and security systems, and automotive and industrial control systems. - What is the maximum output current of the NE555PSR?
The maximum output current is ±225 mA. - What are the key inputs of the NE555PSR?
The key inputs include the trigger (TRIG), threshold (THRES), and reset (RESET) inputs. - What is the package type of the NE555PSR?
The NE555PSR is available in the SO (Small Outline) package. - What is the operating temperature range of the NE555PSR?
The operating temperature range is from 0°C to 70°C. - Can the NE555PSR be used in both monostable and astable modes?
Yes, it can be used in both monostable and astable modes. - What is the significance of the discharge pin in the NE555PSR?
The discharge pin is used to discharge the capacitor in the timing circuit, which is crucial for the operation of the timer. - How does the NE555PSR handle thermal issues?
The NE555PSR has a package thermal impedance (θJA) of 95°C/W, which helps in managing thermal issues. - Where can I find detailed specifications and datasheets for the NE555PSR?
Detailed specifications and datasheets can be found on the Texas Instruments website and other electronic component databases like Digi-Key and Mouser.
