Overview
The TLC555IDR, produced by Texas Instruments, is a monolithic timing circuit fabricated using the TI LinCMOS™ technology. This timer is fully compatible with CMOS, TTL, and MOS logic and operates at frequencies up to 2 MHz. It is designed to offer low power consumption, high input impedance, and the ability to support smaller timing capacitors compared to the NE555 or LM555, resulting in more accurate time delays and oscillations.
The TLC555IDR is functionally interchangeable with the NE555 and has the same pinout, making it a versatile component for various timing and pulse generation applications. It also features high output current capability, rail-to-rail CMOS output, and ESD protection exceeding 2000 V per MIL-STD-883C, method 3015.2.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Supply Voltage Range | 2 V to 15 V | V |
| Supply Current (at 25°C) | 170 µA to 350 µA | µA |
| Power Consumption (at VDD = 5 V) | 1 mW | mW |
| Output Current Capability | Sink: 100 mA, Source: 10 mA | mA |
| Trigger Voltage | Approximately one-third of VDD | V |
| Threshold Voltage | Approximately two-thirds of VDD | V |
| ESD Protection | Exceeds 2000 V per MIL-STD-883C, method 3015.2 | V |
| Operating Frequency | Up to 2 MHz | MHz |
Key Features
- Low power consumption: 1 mW typical at VDD = 5 V.
- Capable of operation in astable mode.
- CMOS output capable of swinging rail to rail.
- High output current capability: Sink 100 mA, Source 10 mA.
- Output fully compatible with CMOS, TTL, and MOS logic.
- Low supply current reduces spikes during output transitions.
- Single-supply operation from 2 V to 15 V.
- Functionally interchangeable with the NE555; has the same pinout.
- ESD protection exceeds 2000 V per MIL-STD-883C, method 3015.2.
- Available in Q-temp automotive for high-reliability automotive applications.
- Qualification to automotive standards.
Applications
- Precision timing.
- Pulse generation.
- Sequential timing.
- Time delay generation.
- Pulse width modulation.
- Pulse position modulation.
- Linear ramp generator.
Q & A
- What is the typical power consumption of the TLC555IDR at VDD = 5 V?
The typical power consumption is 1 mW at VDD = 5 V.
- What is the operating frequency range of the TLC555IDR?
The TLC555IDR operates at frequencies up to 2 MHz.
- Is the TLC555IDR compatible with other logic types?
- What is the ESD protection level of the TLC555IDR?
The ESD protection exceeds 2000 V per MIL-STD-883C, method 3015.2.
- Can the TLC555IDR be used in automotive applications?
- How does the TLC555IDR compare to the NE555 in terms of pinout?
The TLC555IDR is functionally interchangeable with the NE555 and has the same pinout.
- What are the typical supply current values for the TLC555IDR at 25°C?
The typical supply current ranges from 170 µA to 350 µA at 25°C.
- What are some common applications of the TLC555IDR?
- Can the TLC555IDR operate with a single supply voltage?
- How does the high input impedance of the TLC555IDR affect its performance?
The high input impedance allows the use of smaller timing capacitors, resulting in more accurate time delays and oscillations.
