TLC556CD
Dual timer ICs in 14-pin SOIC for precision timing applications
Manufacturer： ti
series introduction
# Introduction to the TLC556CD Product Series
## Overview
The TLC556CD is a highly versatile and widely used integrated circuit (IC) product series that belongs to the category of timer circuits. These devices are designed to provide precise timing functions in a variety of electronic applications. The TLC556CD combines the functionality of two 555 timers in a single package, offering enhanced flexibility and efficiency for circuit designers.
## Key Features
### Dual Timer Functionality
One of the most significant features of the TLC556CD is its dual - timer architecture. This means that it contains two independent 555 - style timer circuits within a single integrated circuit. Each timer can be configured and operated separately, allowing for the implementation of complex timing sequences and functions in a more compact and cost - effective manner. For example, in a multi - stage timing application, such as a sequential lighting control system, the two timers can be used to control different stages of the lighting sequence, eliminating the need for two separate 555 timer chips.
### Wide Supply Voltage Range
The TLC556CD can operate over a relatively wide supply voltage range. Typically, it can function with a supply voltage ranging from 2 V to 18 V. This wide range makes it suitable for use in a variety of power - supply environments, whether it is a low - voltage battery - powered application or a higher - voltage industrial control system. For instance, in a portable electronic device powered by a couple of AA batteries (around 3 V), the TLC556CD can still operate reliably, while in a more traditional 12 V or 15 V power - supply system, it can also perform its timing functions effectively.
### High Output Current Capability
The output stages of the TLC556CD are designed to handle relatively high currents. The output can source or sink up to 200 mA of current. This high - current capability allows the device to directly drive a variety of loads, such as LEDs, small relays, and low - power motors. For example, in a simple LED - blinking circuit, the TLC556CD can directly drive the LED without the need for additional buffer or amplifier circuits, simplifying the overall circuit design.
### Adjustable Timing
The timing characteristics of the TLC556CD can be easily adjusted using external resistors and capacitors. By changing the values of these external components, the user can precisely control the time intervals for functions such as monostable (one - shot) and astable (oscillator) operations. In a monostable application, such as a pulse - width generator, the user can adjust the pulse width by changing the values of the external resistor and capacitor. In an astable application, like a clock generator, the frequency and duty cycle of the output waveform can be adjusted according to the specific requirements of the circuit.
### Low Power Consumption
Despite its high performance, the TLC556CD is designed to consume relatively low power. This makes it suitable for battery - powered applications where power efficiency is crucial. In a long - term monitoring device that runs on a battery, the low power consumption of the TLC556CD helps to extend the battery life, reducing the frequency of battery replacements.
## Applications
### Industrial Automation
In industrial automation systems, the TLC556CD can be used for various timing and control functions. For example, it can be used to control the operation time of conveyor belts, the interval between different manufacturing processes, or the timing of safety interlocks. In a manufacturing line, the dual - timer functionality can be used to control the start and stop times of different machines in a coordinated manner, improving the overall efficiency and productivity of the production process.
### Consumer Electronics
In consumer electronics, the TLC556CD is commonly used in applications such as LED
Images for reference
14-SOIC
14-TSSOPa
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