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Name: NE555PSRE4
Brand: Texas Instruments
SKU: NE555PSRE4
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 NE555PSRE4

Part No.:: NE555PSRE4

Manufacturer:: Texas Instruments

Package:: 8-SOIC (0.209, 5.30mm Width)

Datasheet:: NE555PSRE4.pdf

Description:: IC OSC SINGLE TIMER 100KHZ 8SO

In Stock:: 3118

Quantity:: Add To Cart

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NE555PSRE4 Specifications

Package/Case:
8-SOIC (0.209, 5.30mm Width)
Packaging:
Tape & Reel (TR)
Series:
-
ProductStatus:
Discontinued at Mosen
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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NE555PSRE4 information

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NE555PSRE4 Typical application Circuitry

NE555PSRE4

The NE555PSRE4 is a variant of the ubiquitous NE555 timer integrated circuit, known for its versatility in creating time delays, oscillations, and pulses in a variety of electronic circuits. It is commonly used in a variety of applications such as timing devices, pulse generation, sequential timing, and as part of more complex circuits such as oscillators and PWM controllers.

Characteristic parameters of the NE555 family generally encompass:

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

2. Output Current: Capable of sourcing or sinking around 200 mA.

3. Timing Flexibility: Can generate durations ranging from microseconds to hours.

4. Temperature Dependability: Exhibits stable performance across varying temperatures.

Focusing on a specific application, let's devise a Delayed Turn-On Relay Circuit utilizing the NE555PSRE4.

Configuration of the Circuit:

- Pin 1 (Grounding): This pin is connected directly to the ground of the circuit.

- Pin 2 (Triggering): Attached to a push-button switch and to ground through a resistor, R1.

- Pin 3 (Output): Tied to the relay coil, with a diode across the coil for protection against voltage spikes.

- Pin 4 (Resetting): Linked to Vcc to avert unintentional resets.

- Pin 5 (Control Voltage): Typically unconnected, but may be linked to a noise reduction capacitor.

- Pin 6 (Threshold): Interconnected with Pin 2 and to one side of a timing capacitor, C1.

- Pin 7 (Discharge): Joined to one side of a timing resistor, R2.

- Pin 8 (Supply Voltage): Connected to the circuit's positive voltage source.

Timing Elements:

- R1 (Trigger Resistor): Determines the sensitivity of the trigger.

- R2 (Timing Resistor): Influences the duration before the relay activates.

- C1 (Timing Capacitor): Works with R2 to define the delay time.

Delay Period Calculation:

The delay duration (T) before the relay engages is calculated using the equation T = 1.1 * R2 * C1.

Design Considerations:

1. Voltage Consistency: Confirm that the supply voltage aligns with the NE555PSRE4 specifications.

2. Output Load: Ensure the output can manage the relay coil's current demands.

3. Debounce Circuit: For a stable operation, a debounce circuit may be necessary for the push-button switch.

4. Noise Immunity: Consider adding filtering components if the circuit operates in a noise-prone environment.

5. Thermal Management: Evaluate the need for heat dissipation if the NE555PSRE4 is subjected to substantial current flow.

In a delayed turn-on relay application, the NE555PSRE4 serves as an effective delay timer, ensuring devices or systems powered by the relay are not activated immediately but after a predetermined interval. This might be very helpful for setting up a controlled startup sequence or safeguarding delicate equipment.

NE555PSRE4 FAQ

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6. What is the process for return or replacement of NE555PSRE4?

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 NE555PSRE4 we delivered, we will accept the replacement or return of the NE555PSRE4 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 NE555PSRE4.

(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