Overview
The NE555DR is a precision timer integrated circuit produced by Texas Instruments. It is part of the 555 timer family, known for its versatility and wide range of applications in electronic circuits. The NE555DR is available in an 8-pin SOIC package and is RoHS and Green compliant. This component is widely used in various timing and pulse generation applications due to its stable and reliable performance.
Key Specifications
| Parameter | Unit | Min | Typ | Max |
|---|---|---|---|---|
| Threshold Voltage (VCC = 15 V) | V | 9.4 | 10 | 10.6 |
| Threshold Voltage (VCC = 5 V) | V | 2.7 | 3.3 | 4 |
| Trigger Voltage (VCC = 15 V, TA = -55°C to 125°C) | V | 1.45 | 1.67 | 1.9 |
| Trigger Current (TRIG at 0 V) | μA | 0.5 | 0.9 | 1 |
| Reset Voltage (TA = -55°C to 125°C) | V | 0.7 | 1.1 | 1.4 |
| Reset Current (RESET at 0 V) | mA | -0.4 | -1 | -1.5 |
| Discharge Switch Off-State Current | nA | 20 | 100 | 100 |
| Discharge Switch On-State Voltage (VCC = 5 V, IO = 8 mA) | V | 0.15 | 0.4 | |
| Operating Voltage Range | V | 5 | 15 | |
| Operating Temperature Range | °C | 0 | 70 |
Key Features
- Highly Stable Operation: The NE555DR offers stable timing intervals with minimal drift over temperature and supply voltage changes.
- Versatile Configuration: Can be configured for both monostable and astable operations, making it suitable for a wide range of applications.
- Low Power Consumption: Operates with a low current draw, making it energy-efficient.
- Wide Operating Voltage Range: Can operate from 5 V to 15 V, allowing flexibility in circuit design.
- Temperature Stability: Maintains stable performance over a temperature range of 0°C to 70°C.
Applications
- Pulse Generation: Used in circuits requiring precise pulse generation, such as in digital circuits and signal processing.
- Timing Circuits: Ideal for creating timing circuits, including delay circuits and oscillators.
- Alarm Systems: Can be used in alarm systems and other security devices that require timed intervals.
- Automotive Electronics: Suitable for use in automotive electronics due to its robustness and temperature stability.
- Industrial Control Systems: Used in industrial control systems for timing and sequencing tasks.
Q & A
- What is the operating voltage range of the NE555DR?
The NE555DR operates from 5 V to 15 V. - What are the typical threshold voltage levels for the NE555DR?
The typical threshold voltage levels are 10 V for VCC = 15 V and 3.3 V for VCC = 5 V. - What is the temperature range for the NE555DR?
The NE555DR operates from 0°C to 70°C. - Can the NE555DR be used in both monostable and astable configurations?
Yes, the NE555DR can be configured for both monostable and astable operations. - What is the discharge switch on-state voltage for the NE555DR?
The discharge switch on-state voltage is typically 0.15 V to 0.4 V at VCC = 5 V and IO = 8 mA. - Is the NE555DR RoHS and Green compliant?
Yes, the NE555DR is RoHS and Green compliant. - What is the typical trigger current for the NE555DR?
The typical trigger current is 0.9 μA at TRIG = 0 V. - What are some common applications of the NE555DR?
Common applications include pulse generation, timing circuits, alarm systems, automotive electronics, and industrial control systems. - How stable is the timing interval of the NE555DR over temperature changes?
The timing interval has a temperature coefficient of 30 ppm/°C to 100 ppm/°C for monostable operation. - What is the output-pulse rise and fall time for the NE555DR?
The output-pulse rise and fall time is typically 100 ns to 200 ns at CL = 15 pF.
