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Name: NE555DR
Brand: Texas Instruments
SKU: NE555DR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments NE555DR

Part No.:: NE555DR

Manufacturer:: Texas Instruments

Package:: 8-SOIC (0.154, 3.90mm Width)

Datasheet:: NE555DR.pdf

Description:: IC OSC SGL TIMER 100KHZ 8-SOIC

In Stock:: 371384

Quantity:: Add To Cart

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NE555DR Typical application Circuitry

NE555DR

The NE555DR is a variant of the classic NE555 timer IC, renowned for its versatility and reliability. The primary function of this chip is to provide precise timing and oscillation. It finds utility in applications such as pulse generation, time delay creation, and as a part of more complex circuits like sequential timers and pulse-width modulation (PWM) controllers.

Key Specifications:

1. Voltage Range: Typically operates within a range of 4.5V to 15V.

2. Output Drive Capability: Can source or sink up to 200 mA.

3. Timing Range: From microseconds to hours, depending on the external components used.

4. Temperature Stability: Delivers consistent performance across a wide temperature range.

Let's examine the NE555DR in an Astable Multivibrator configuration, which generates a continuous square wave.

Detailed Circuit Explanation:

- Pin 1 (GND): Connect to the system ground.

- Pin 2 (Trigger): Linked to Pin 6 for astable operation.

- Pin 3 (Output): This delivers the square wave signal.

- Pin 4 (Reset): Tied to Vcc to avoid unintentional resets.

- Pin 5 (Control Voltage): Typically left open or connected to a noise suppression capacitor.

- Pin 6 (Threshold): Joins Pin 2 and connects to the timing capacitor C1.

- Pin 7 (Discharge): Connects to one side of R1 and to the timing capacitor C1.

- Pin 8 (Vcc): Connect to the positive supply voltage.

Crucial Timing Elements:

- R1 & R2 (Timing Resistors): These resistors, along with C1, dictate the frequency of the output waveform.

- C1 (Timing Capacitor): Charges and discharges between 1/3 and 2/3 of Vcc, setting the high and low time intervals of the waveform.

Frequency Calculation:

The frequency (f) of oscillation is determined by f = 1.44 / ((R1 + 2 * R2) * C1).

Design Considerations:

1. Stable Power Supply: Ensure the NE555DR is powered within its specified voltage range.

2. Precise Components: Choose resistors and capacitors with low tolerance for accurate frequency generation.

3. Output Load: Confirm that the connected load is within the chip's driving limits.

4. Noise Immunity: Employ strategies like a decoupling capacitor close to Pin 8 to minimize noise impact.

5. Thermal Considerations: In high-frequency or high-current applications, assess if additional cooling for the IC is necessary.

In an astable mode, the NE555DR is adept at creating a stable square wave, applicable in LED flashers, clock pulses for digital circuits, and PWM control for motor speed regulation.

NE555DR information

NE555DR Specifications

Package/Case:
8-SOIC (0.154, 3.90mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
Type:
555 Type, Timer/Oscillator (Single)
Count:
-
Frequency:
100kHz
Voltage-Supply:
4.5V ~ 16V
Current-Supply:
10 mA
OperatingTemperature:
0°C ~ 70°C

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6. What is the process for return or replacement of NE555DR?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the NE555DR we delivered, we will accept the replacement or return of the NE555DR only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of NE555DR.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations