TLC555IDG4
Low-power timing ICs in compact SOIC-8 packages for electronic circuits
Manufacturer： ti
series introduction
# TLC555IDG4 Product Series Introduction
## 1. Overview
The TLC555IDG4 is a highly versatile and widely - used integrated circuit belonging to the 555 timer family. Texas Instruments, a leading semiconductor manufacturer, produces this product. The TLC555IDG4 offers a cost - effective and reliable solution for a variety of timing and pulse - generation applications. It combines the functionality of a classic 555 timer with the benefits of low - power CMOS technology, making it suitable for both battery - powered and general - purpose electronic systems.
## 2. Key Features
### 2.1 Low Power Consumption
One of the standout features of the TLC555IDG4 is its low power consumption. Thanks to its CMOS design, it draws significantly less current compared to traditional bipolar 555 timers. This makes it an ideal choice for battery - operated devices such as portable sensors, wireless transmitters, and low - power consumer electronics. The reduced power consumption not only extends the battery life but also helps in minimizing heat dissipation, which is crucial for maintaining the stability of the overall system.
### 2.2 Wide Supply Voltage Range
The TLC555IDG4 can operate over a wide supply voltage range, typically from 2 V to 18 V. This flexibility allows it to be used in a diverse range of applications with different power requirements. Whether it is a low - voltage microcontroller - based system or a higher - voltage industrial control circuit, the TLC555IDG4 can adapt easily, providing designers with greater freedom in system design.
### 2.3 High Output Current Capability
Despite its low - power nature, the TLC555IDG4 can source and sink relatively high output currents. It can drive loads up to 200 mA, which enables it to directly drive external components such as LEDs, relays, and small motors without the need for additional buffer circuits in many cases. This simplifies the circuit design and reduces the overall component count, leading to cost savings and a more compact PCB layout.
### 2.4 Precise Timing Capabilities
The TLC555IDG4 offers precise timing functions. It can be configured in different modes, such as monostable (one - shot) and astable (free - running) modes, to generate accurate time delays and pulse widths. The timing accuracy is mainly determined by the external resistors and capacitors connected to the device. With proper selection of these passive components, designers can achieve timing accuracies in the microsecond to second range, making it suitable for applications that require precise timing control, such as clock generation, frequency division, and pulse - width modulation.
### 2.5 Compatibility and Ease of Use
The TLC555IDG4 is pin - compatible with the standard 555 timer, which means that it can be easily substituted in existing designs that use the traditional 555 timer. This makes it a convenient upgrade option for designers looking to reduce power consumption or improve performance in their systems. Additionally, the device has a simple and straightforward pinout, and its operation can be easily understood and configured using basic electronic knowledge.
## 3. Package and Pin Configuration
The TLC555IDG4 comes in a small - outline integrated circuit (SOIC) package, specifically the 8 - pin SOIC (D) package. This package is widely used in the electronics industry due to its compact size and ease of handling during PCB assembly.
The pin functions are as follows:
- **Pin 1 (GND)**: Ground reference for the device.
- **Pin 2 (Trigger)**: When the voltage at this pin drops below 1/3 of the supply voltage, it triggers the output of the timer to go high in monostable
Images for reference
8-SOIC
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