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SA555DG4
+BOMIC OSC SGL TIMER 100KHZ 8-SOIC
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Nhà sản xuấtTexas Dụng cụ
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Ông. Phần #SA555DG4
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Bảng dữ liệu SA555DG4 DataSheet
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| 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 |
Tổng quan
Description
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
Features
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
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
Application
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.