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Texas Instruments SE555DR

Part No.:: SE555DR

Manufacturer:: Texas Instruments

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

Datasheet:: SE555DR.pdf

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

In Stock:: 32984

Quantity:: Add To Cart

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SE555DR 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 ~ 18V
Current-Supply:
10 mA
OperatingTemperature:
-55°C ~ 125°C

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SE555DR information

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SE555DR Typical application Circuitry

SE555DR

The SE555DR chip is a variant of the classic 555 timer IC, widely used in various electronic applications due to its versatility. The "SE" prefix typically indicates a specific manufacturer's version, and "DR" often refers to the packaging type, such as a reel for surface-mount technology (SMT). This chip functions primarily as a timer, oscillator, or pulse generator.

Application Scenario: LED Flasher Circuit

Functional Overview:

The SE555DR can be used to create a simple LED flasher circuit. This application utilizes the 555 timer's astable mode to generate a continuous square wave, thus turning an LED on and off.

Circuit Connection:

- Pin 8 (VCC): Connect to a power source (5V-15V).

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

- Pin 2 (TRIG) and Pin 6 (THRS): Interconnect these pins.

- Pin 3 (OUT): Connect to the LED through a current-limiting resistor.

- Pin 4 (RESET): Connect to VCC to avoid accidental resets.

- Pin 5 (CTRL): Leave open or connect to a capacitor (0.01µF) to ground for stability.

- Pin 7 (DISCH): Connect to the junction of R1 and R2, two resistors forming a part of the timing network.

Timing Components:

- R1 & R2: Determine the flash rate. Adjust values to change the frequency.

- C1: Timing capacitor. Its value, along with R1 and R2, sets the on-off duration.

Programming Pins:

- N/A for SE555DR: This chip doesn't require programming; it's purely analog.

Design Considerations:

- Supply Voltage: Ensure it's within the chip's operating range.

- Timing Accuracy: Component tolerance (resistors and capacitors) affects timing.

- Heat Dissipation: In high-frequency or high-voltage applications, consider heat sinking.

- Load Current: Ensure the output current does not exceed the chip's specification.

Incorporating the SE555DR in this LED flasher circuit demonstrates its functionality in a practical, easy-to-understand application. This chip's reliability and simplicity make it a go-to for both hobbyists and professionals alike.

SE555DR FAQ

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We have a professional and experienced quality control team to strictly verify and test the SE555DR. All suppliers must pass our qualification reviews before they can publish their products including SE555DR on icwhale.com; we pay more attention to the channels and quality of SE555DR products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the SE555DR price and inventory displayed accurate?

The price and inventory of SE555DR fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

4. What forms of payment are accepted?

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6. What is the process for return or replacement of SE555DR?

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 SE555DR we delivered, we will accept the replacement or return of the SE555DR 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 SE555DR.

(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