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Name: SG3524N
Brand: STMicroelectronics
SKU: SG3524N
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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STMicroelectronics SG3524N

Part No.:: SG3524N

Manufacturer:: STMicroelectronics

Package:: 16-DIP (0.300, 7.62mm)

Datasheet:: SG3524N.pdf

Description:: IC REG CTRLR FLYBK/PSH-PLL 16DIP

In Stock:: 1954

Quantity:: Add To Cart

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SG3524N Typical application Circuitry

SG3524N

The SG3524N is a versatile integrated circuit primarily used as a regulating pulse-width modulator. It's designed to facilitate the construction of various types of power supplies, inverters, or switching regulators. This chip is capable of functioning as the control element in high-power-output applications and is particularly well-suited for fixed-frequency, pulse-width modulation (PWM) techniques.

Specifications and Features of SG3524N:

- It operates within a supply voltage range of 8V to 40V.

- The output current can reach 50 mA, and the output voltage spans from 4.6V to 5.4V.

- It supports a maximum duty cycle of 45% and a switching frequency up to 722 kHz.

- The times for rise and fall are 200 and 100 nanoseconds, respectively.

- The chip is offered in SOIC, PDSO, and 16-pin PDIP packages.

Developing an Application: Creating a Buck Converter

In a buck converter application, the SG3524N can efficiently reduce voltage from a higher input to a lower output. Here is a comprehensive tutorial on connecting the circuit with the SG3524N:

1.Connectivity of the Power

Supply Connect the Power Supply: The VCC pin (pin 15) is connected to a power supply within the chip's operating range (8V to 40V).

2.Oscillator Configuration

Set the Oscillator Frequency: Utilize the RT (pin 6) and CT (pin 7) to set the oscillator frequency. A resistor is connected to RT and a capacitor to CT.

3.Error Amplifier

Feedback Loop: Connect the inverting (1IN-, pin 1) and non-inverting inputs (1IN+, pin 2) of the error amplifier to create a feedback loop for voltage regulation.

4.Output Stage

PWM Output Configuration: The COL 1 (pin 12) and COL 2 (pin 13) serve as the collector terminals for the BJT output, while EMIT 1 (pin 11) and EMIT 2 (pin 14) serve as the emitter terminals. These pins can be configured for single-ended or push-pull output.

5.Additional Features

Current Limiting and Shutdown: The CURR LIM+ (pin 4) and CURR LIM- (pin 5) are used for current limiting. The SHUTDOWN pin (pin 10) can be used to disable the device.

Circuit Design Considerations

When designing a circuit with SG3524N, it's crucial to consider factors like the power supply stability, oscillator frequency setting for precise PWM control, feedback loop configuration for accurate voltage regulation, and ensuring the current limit and shutdown features are properly utilized to protect the circuit.

Overall, the SG3524N is a powerful and flexible solution for a variety of power control applications, offering both reliability and efficiency. It's important to carefully follow the datasheet and application guidelines to make the most of its capabilities.

SG3524N information

SG3524N Specifications

Package/Case:
16-DIP (0.300, 7.62mm)
Packaging:
Tube
Series:
-
ProductStatus:
Active
OutputType:
Transistor Driver
Function:
Step-Up/Step-Down
OutputConfiguration:
Positive
Topology:
Flyback, Push-Pull
NumberofOutputs:
2
OutputPhases:
1
Voltage-Supply(Vcc/Vdd):
8V ~ 40V
Frequency-Switching:
300kHz
DutyCycle(Max):
45%
SynchronousRectifier:
No
ClockSync:
No
SerialInterfaces:
-
ControlFeatures:
Enable
OperatingTemperature:
0°C ~ 70°C (TA)
MountingType:
Through Hole

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3. Are the SG3524N price and inventory displayed accurate?

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6. What is the process for return or replacement of SG3524N?

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 SG3524N we delivered, we will accept the replacement or return of the SG3524N 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 SG3524N.

(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