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SG1844

Microsemi
Part Number SG1844
Manufacturer Microsemi
Description Current Mode PWM Controller
Published Jan 5, 2020
Detailed Description SG1844/SG1845/SG3844/SG3845 Current Mode PWM Controller Description The SG1844/45 family of control ICs provides all th...
Datasheet PDF File SG1844 PDF File

SG1844
SG1844

Overview
SG1844/SG1845/SG3844/SG3845 Current Mode PWM Controller Description The SG1844/45 family of control ICs provides all the required features to implement off-line Fixed Frequency, Current-mode switching power supplies with a minimum number of external components.
Current-mode architecture demonstrates improved line regulation, improved load regulation, pulse-by pulse current limiting and inherent protection of the power supply output switch.
The Bandgap reference is trimmed to ±1% over temperature.
Oscillator discharge current is trimmed to less than ±10%.
The SG1844/45 has under-voltage lockout, current-limiting circuitry and start-up current of less than 1mA.
The totem-pole output is optimi...


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