| Allicdata Part #: | SG2844M-ND |
| Manufacturer Part#: |
SG2844M |
| Price: | $ 3.40 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | Microsemi Corporation |
| Short Description: | IC PWM CURRENT MODE 8DIP |
| More Detail: | Converter Offline 100Hz ~ 500kHz 8-DIP |
| DataSheet: |  SG2844M Datasheet/PDF |
| Quantity: | 4847 |
| 1 +: | $ 3.08700 |
| 10 +: | $ 2.75499 |
| 25 +: | $ 2.47918 |
| 100 +: | $ 2.25886 |
| 250 +: | $ 2.03846 |
| 500 +: | $ 1.82911 |
| 1000 +: | $ 1.54262 |
| 2500 +: | $ 1.46548 |
Specifications
| Duty Cycle: | 48% |
| Base Part Number: | SG*844 |
| Mounting Type: | Through Hole |
| Supplier Device Package: | 8-DIP |
| Package / Case: | 8-DIP (0.300", 7.62mm) |
| Operating Temperature: | -25°C ~ 85°C (TA) |
| Control Features: | Frequency Control |
| Fault Protection: | Current Limiting |
| Frequency - Switching: | 100Hz ~ 500kHz |
| Series: | -- |
| Voltage - Supply (Vcc/Vdd): | 10 V ~ 30 V |
| Voltage - Start Up: | 16V |
| Topology: | -- |
| Voltage - Breakdown: | -- |
| Internal Switch(s): | No |
| Output Isolation: | Isolated |
| Part Status: | Active |
| Packaging: | Tube |
Description
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SG2844M is a popular power management integrated circuit (PMIC) used in a wide range of applications, including AC DC converters, offline switchers, and various power supplies. It is designed to provide maximum power efficiency while protecting the system from any power-related damage. The SG2844M series is a single-phase converter with a high input voltage range from 8 V to 180 V and a maximum output current of 3 A. In this article, we will discuss the application fields and working principle of the SG2844M.
Application fields
The SG2844M is often used in a wide range of applications, such as AC/DC converters, offline switchers, three phase direct online UPS systems, battery chargers, power supplies, and power converters. It is also suitable for devices that require reliable power delivery and noise immunity, such as laptop computers, industrial machines, and smart phones. The SG2844M is highly efficient and provides a wide range of protection features to prevent system overloads, overvoltages, and overcurrents. This ensures that the device runs reliably and safely. In addition, the SG2844M is designed to provide continuous output current and improve system reliability when used with AC or DC motors. The device is also suitable for automotive applications, such as vehicle chargers and power converters. The SG2844M is a low standby power device, making it an ideal choice for automotive applications.Working Principle
The SG2844M is an intelligent device that monitors and controls the power supply. It has three main pins: the gate, the source, and the drain. The gate pin is the control pin and is connected to the microcontroller. The source and drain pins control the power supply output voltage. The SG2844M utilizes pulse width modulation (PWM) to control the output voltage. When the gate is turned ON, a voltage is applied to the source and drain pins. This generates an ON state, allowing current to flow between the source and drain pins. When the gate is turned OFF, no current can flow and the device is in an OFF state. By varying the pulse width and the frequency of the pulses, the output voltage can be adjusted and controlled. The SG2844M also provides several protection features to prevent system overloads, shorts, reverse voltages, and overvoltages. The Under Voltage Lock Out (UVLO) feature ensures that the output voltage does not drop below a pre-set value, while the Over Current Protection (OCP) feature ensures that the output current does not exceed the rated limit. The device also provides short circuit and overvoltage protection to prevent damage to the device and the system.Conclusion
In conclusion, the SG2844M is a popular PMIC, suitable for a wide range of applications, such as AC/DC converters, offline switchers, and power supplies. The device utilizes PWM to adjust the output voltage and is protected from overloads and other power-related damages. With its high efficiency and reliable operation, the SG2844M is a great choice for any application requiring high precision and reliability.The specific data is subject to PDF, and the above content is for reference
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