TLC555CPW

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The TLC555CPW is a programmable mono-stable timer circuit designed to operate as either a timer or an oscillator. It is used in a wide variety of applications and is considered a very reliable and long-life device. The TLC555CPW is typically used in a circuit configuration which allows it to oscillate or provide a delayed output depending on the values of the external components.

The primary purpose of the TLC555CPW is to provide an accurate and reliable timing or oscillation circuit that can be controlled with a variety of user-selectable options. It is well suited for applications such as time delay applications, switching power supply circuits, solid-state relays, and music/audio drivers.

The TLC555CPW is based on a semi-conductor substrate that is P-channel MOSFET (PMOS) process for the monolithic integrated circuit. The PMOS process gives the device a very low power consumption, a wide temperature range and a high resistance to noise and radiation.

The TLC555CPW consists of two transistors and two resistors. The two transistors, T1 and T2, form a cross-coupled toggle switch. The two resistors are to provide the bias current to the transistor. The output of the toggle switch is fed to a flip-flop which provides the timing control. The output of the flip-flop is coupled to an output terminal of the TLC555CPW.

When a high-level pulse is applied to the “trigger” pin, the voltage at the output pin is switched from low to high. This change in state is called the "triggering" of the TLC555CPW. The duration of the high state is determined by the external components connected to the "control voltage terminal." The higher the voltage at the control voltage terminal, the shorter the duration of the high state.

In order to operate as an oscillator, an external timing capacitor and resistor values must be selected. The value of the timing capacitor determines the frequency of the oscillation, while the value of the resistor determines the duty cycle of the output. When the capacitor is charged to a certain voltage level, the flip-flop flips output back to low, and the charging process begins again, repeating the cycle.

The TLC555CPW is a very versatile and reliable timer circuit that is used in a variety of applications. It is capable of providing both accurate and reliable timing or oscillation when used in the proper circuit configuration.

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