SA555DG4

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IC OSC SGL TIMER 100KHZ 8-SOIC

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Especificações

Atributo Valor
Supplier Rochester Electronics, LLC,Texas Instruments
Package Bulk,Tube
ProductStatus Discontinued at Digi-Key
Type 555 Type, Timer/Oscillator (Single)
Frequency 100kHz
Voltage-Supply 4.5V ~ 16V
Current-Supply 10 mA
OperatingTemperature -40°C ~ 85°C
Package/Case 8-SOIC (0.154, 3.90mm Width)
SupplierDevicePackage 8-SOIC

Visão Geral

Description

The SA555DG4 is a precision timer IC (Integrated Circuit) widely used in applications requiring accurate timing and pulse generation. Part of the 555 timer family, it is known for its versatility in creating time delays, oscillations, and pulse width modulation. The SA555DG4 operates in three modes: monostable, astable, and bistable, making it suitable for various applications including LED flashers, pulse generation, and frequency dividers.
Key features include a wide supply voltage range (typically 4.5V to 16V), low power consumption, and the ability to source or sink up to 200mA of output current. Its internal structure consists of comparators, flip-flops, and a discharge transistor, which contribute to its reliable and stable performance. The "DG4" suffix often indicates a specific package type or a particular manufacturer grading, ensuring availability in different packaging options for diverse design requirements.
This IC is widely used in educational and industrial applications due to its ease of use and reliability, making it a staple component in electronics design and prototyping.

Equivalent

The SA555DG4 is a general-purpose timer IC equivalent to industry-standard 555 timer ICs. Equivalent products include the LM555, NE555, and TLC555, which are all similar in functionality. These ICs can generate precise time delays or oscillation and are used in various applications, such as pulse generation and timers. When selecting an equivalent, ensure compatibility with the specific package type and electrical characteristics.

Features

The SA555DG4 is a precision timer IC with several notable features. It operates in a wide voltage range from 4.5V to 16V, making it versatile for various applications. The IC is capable of providing accurate timing delays or oscillations, and it can be configured in either monostable or astable mode. A key feature is its high timing accuracy, which is less susceptible to variations in temperature and power supply voltage.
The SA555DG4 also boasts low power consumption and has a low current draw when in standby mode, making it energy efficient. It can source or sink up to 200 mA, which is suitable for driving loads directly. The timer is equipped with a discharge transistor, which enhances its capability to control the timing intervals precisely.
Additionally, the SA555DG4 is designed to be a pin-for-pin replacement for other standard 555 timers, ensuring compatibility and ease of integration into existing circuits. It is housed in a variety of package options, making it adaptable to different design requirements.

Pinout

The SA555DG4 is a precision timer IC, commonly used for generating precise time delays or oscillations. It is part of the 555 timer family and is packaged in an 8-pin configuration. Here's a breakdown of its pin functions:
1. Ground (Pin 1): Connected to the ground of the circuit.
2. Trigger (Pin 2): A low voltage (<1/3 VCC) on this pin triggers the timer to start the timing interval.
3. Output (Pin 3): The output pin provides the timer's output, which can drive TTL loads.
4. Reset (Pin 4): Resets the timer when connected to a low voltage. If not used, it should be connected to VCC to avoid accidental resets.
5. Control Voltage (Pin 5): Allows the modification of the threshold voltage, usually connected to ground via a capacitor.
6. Threshold (Pin 6): Compares the voltage across the capacitor with 2/3 VCC to determine when to reset the output.
7. Discharge (Pin 7): Discharges the timing capacitor to end the timing interval.
8. VCC (Pin 8): The positive supply voltage pin, typically ranging from 4.5V to 16V.
The SA555DG4 is suitable for precision timing applications, including monostable and astable configurations.

Manufacturer

The SA555DG4 is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and produces a wide array of electronic components, most notably known for its work in the fields of analog and embedded processing. Founded in 1930, TI has become a leader in the semiconductor industry, offering products that are integral to the functioning of a vast range of electronic devices. The company focuses on innovation and technology development, providing solutions for sectors such as automotive, industrial, personal electronics, communications equipment, and enterprise systems. With a strong emphasis on research and development, Texas Instruments continually works on advancing its product offerings to meet the evolving needs of its diverse customer base.

Application

The SA555DG4 is a precision timer IC widely used in various applications. Its primary application areas include:
1. Monostable Operation: Used in pulse generation, timer delays, and switch debounce circuits.
2. Astable Operation: Functions as an oscillator for generating square waves in flashing lights, tone generation, and clock pulses.
3. PWM Generation: Used in pulse-width modulation for motor speed control and dimming LEDs.
4. Frequency Divider: Employed in frequency division applications in signal processing.
5. Time Delay Circuits: Utilized for creating precise time delays in various control systems.
The SA555DG4 is valued for its versatility, reliability, and ease of use in both analog and digital circuits.

Package

The SA555DG4 is a Texas Instruments timer IC available in an 8-pin SOIC (Small Outline Integrated Circuit) package. This package type is compact, suitable for surface-mount technology, and is commonly used in electronic applications for timing, pulse generation, and oscillator functions.

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