SG1844Y-883B

Voltage - Supply (Vcc/Vdd):	10 V ~ 30 V
Mounting Type:	Through Hole
Supplier Device Package:	8-CDIP
Package / Case:	8-CDIP (0.300", 7.62mm)
Operating Temperature:	-55°C ~ 125°C (TA)
Control Features:	Frequency Control
Fault Protection:	Current Limiting
Frequency - Switching:	100Hz ~ 500kHz
Duty Cycle:	48%
Series:	Military, MIL-STD-883B
Voltage - Start Up:	16V
Topology:	--
Voltage - Breakdown:	--
Internal Switch(s):	No
Output Isolation:	Isolated
Part Status:	Active
Packaging:	Tube

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PMIC - AC DC Converters, Offline SwitchersSG1844Y-883B is a very popular AC/DC converter that is part of a family of offline switchers. This converter is a highly integrated, single-chip device that can be used in a variety of electronic applications. It is designed to convert alternating current (AC) to direct current (DC) with an input voltage ranging from 85 to 265V AC and an output voltage ranging from 2.75 to 25V DC.The SG1844Y-883B is a highly efficient device with a maximum efficiency of up to 92% and a no-load power consumption of less than 0.07 watts. It also features short-circuit and thermal protection, which reduces the possibility of damage in the case of an overload, short circuit, or overheating. In addition, this converter has a wide operating temperature range, making it suitable for both industrial and consumer applications.The SG1844Y-883B is composed of two sections, an input and an output. The input section contains an integrated line filter and bridge rectifier, which provide full-wave rectification. The output section consists of an error amplifier, a wide bandwidth oscillator, primary and synchronous power switches, and a current limiting circuit. The error amplifier compares the output voltage with a reference voltage and adjusts the width modulation of the synchronous switch, in order for the output voltage to be kept in regulation. The primary switch is operated by the wide bandwidth oscillator, which is synchronized with the AC line input, and is kept on for the whole half-cycle. An error amplifier senses the output voltage and control the primary and synchronous switches to regulate the output voltage. The current limiting circuit limits the output current to a safe value, and the built-in protection circuitry ensures that the converter will not be damaged in the event of a short-circuit, over-current, or over-temperature condition. This makes the SG1844Y-883B an excellent choice for a wide range of consumer and industrial applications, such as printers, scanners, digital set-top boxes, and other low-power electronic devices.The SG1844Y-883B is an ideal solution for applications that require high reliability, low cost, and good efficiency. Its fully integrated design makes it easy to implement in existing designs, and its wide input voltage range ensures that it can be used in a wide variety of applications. In addition, its high efficiency, low no-load power consumption, and built-in protection features make it a cost-effective solution for a variety of applications.

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