Overview
The NE555PWRG4 is a precision timer integrated circuit produced by Texas Instruments. It is part of the 555 timer family, which includes the NA555, NE555, SA555, and SE555 models. This IC is widely used in various timing and pulse generation applications due to its versatility and reliability.
Key Specifications
| Parameter | Unit | Min | Typ | Max |
|---|---|---|---|---|
| VCC Supply Voltage | V | 4.5 | - | 16 |
| Input Voltage (CONT, RESET, THRES, TRIG) | V | 0 | - | VCC |
| Output Current | mA | - | - | ±225 (D package), ±85 (P package) |
| THRES Voltage Level (VCC = 15 V) | V | 8.8 | 10 | 11.2 |
| THRES Voltage Level (VCC = 5 V) | V | 2.4 | 3.3 | 4.2 |
| TRIG Voltage Level (VCC = 15 V) | V | 1.1 | 1.67 | 2.2 |
| TRIG Voltage Level (VCC = 5 V) | V | 0.7 | 1.67 | 2.2 |
| Package Thermal Impedance (θJA) | °C/W | - | - | 95 (P package), 149 (PW package), 5.61 (FK package) |
Key Features
- Highly stable operation with a temperature range of –55°C to 125°C.
- Low power consumption and high output current capability.
- Active low reset input and trigger input for flexible timing control.
- Wide supply voltage range from 4.5 V to 16 V.
- Available in various packages including D, P, PW, and FK.
Applications
The NE555PWRG4 is versatile and can be used in a variety of applications, including:
- Pulse generation and timing circuits.
- Frequency dividers and oscillators.
- Alarm and timer circuits.
- Sequential timing and logic circuits.
- Power supply monitoring and control.
Q & A
- What is the NE555PWRG4? The NE555PWRG4 is a precision timer integrated circuit produced by Texas Instruments.
- What is the supply voltage range for the NE555PWRG4? The supply voltage range is from 4.5 V to 16 V.
- What are the typical applications of the NE555PWRG4? Typical applications include pulse generation, frequency dividers, alarm and timer circuits, sequential timing, and power supply monitoring.
- What are the key features of the NE555PWRG4? Key features include high stability, low power consumption, active low reset and trigger inputs, and a wide supply voltage range.
- What are the different packages available for the NE555PWRG4? The NE555PWRG4 is available in D, P, PW, and FK packages.
- What is the maximum output current of the NE555PWRG4? The maximum output current is ±225 mA for the D package and ±85 mA for the P package.
- How does the NE555PWRG4 handle temperature variations? The NE555PWRG4 operates stably over a temperature range of –55°C to 125°C.
- What is the significance of the THRES and TRIG pins on the NE555PWRG4? The THRES (threshold) and TRIG (trigger) pins are used to control the timing and output state of the IC.
- Can the NE555PWRG4 be used in sequential timing circuits? Yes, the NE555PWRG4 can be used in sequential timing and logic circuits.
- What precautions should be taken when handling the NE555PWRG4? The NE555PWRG4 should be handled with appropriate ESD precautions to avoid damage.
