Contents
What is SG3524?
The SG3524 is an IC commonly used in our day-to-day electronic devices. It is a small, black, compact block with 16 protruding pins connected to a printed circuit board.
The SG3524 is a switching regulator encompassing all circuitries necessary for a switching regulator in single-ended or push-pull mode.
These circuitries form the heart of a PWM (pulse width modulation) inverter circuit, quickly correcting the device’s output PWM voltage.
(A typical 16 pinout IC)
SG3524 Pin Configuration
The SG3524 has 16 Dual In-line Package (DIP) pinouts, eight on each side of the IC. Below is a detailed configuration of the SG3524.
(The pin configuration of the SG3524)
Specifications and features
- 8V – 40V range of supply voltage.
- 4.6 V– 5.4 V range of output voltage.
- 50mA current output.
- 2 outputs.
- 100Hz – 300kHz Oscillator Range.
- Total Supply Current less than 10mA.
- One hundred ns in fall time.
- Two hundred ns in rise time.
- 16-pinout configuration.
- Complete PWM Power Control Circuitry
Use of the SG3524
The Regulating Pulse Width Modulator is designed to switch regulators’ polarity, polarity converter applications, transformerless voltage doublers, and transformers with DC-TO-DC converters.
SG3524 achieves this by using fixed-frequency and pulse modulation techniques. The SG3524 IC applies in DC to DC conversion whether it is a buck-boost topology.
The SG3524 IC is useful, especially for projects that employ PWM signals for the power switch current flow.
( How the SG3524 is used on a PCB)
How do we use SG3524?
As highlighted above, the SG3524’s use case is pretty simple. It works well for projects that use PWM controllers as programmable oscillators.
Its expansive range of voltage operations, from 8V to 40V, makes it possible to function in various devices. How does it work in these devices?
To begin with, the regulator works under a static frequency programmed using a resistor and capacitor. Then, we have a 1IN+ (non–inverting) pin connected to the Ref pin and 1IN- (reversing) pins connected to the error amplifier compensation pin.
Also, to control the oscillator’s output frequency, the external capacitor and resistor connect to the Resistor terminal pin and the Capacitor terminal pins.
The SG3524 has a built-in 5-Voltage known as a reference; the error amplifier compares a 5-V output stage power supply to the authority and adjusts it accordingly by changing the PWM.
Finally, an R-2R ladder divides the internal reference voltage externally then the output gets automation by a different resistor divider network.
Equivalent/alternative to SG3524
The following are equivalents and alternatives that could be useful in place of the SG3524;
- TL494
- UC3843
- Tl3842
- SG2524
- UC2842
(A similar IC that could be used in place of the sg3524)
Application
The following are use case scenarios of the SG3524 IC.
- Desktop PCs
- Solar microinverters
- Smoke detectors
- Solar power inverters
- Washing machines
- E-Bike
- Microwave ovens
Conclusion
In conclusion, it is essential to reiterate that the SG3524 is a typical PWM IC found in our daily devices. It also has a vast voltage capacity, making it usable in many devices, and its primary function is to control the output voltage against an input load.
So, whenever you are looking to source the SG3524, feel free to contact us, and we will help you throughout the process.
