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SG3844 Datasheet Current Mode PWM Controller

Manufacturer: Microsemi (now Microchip Technology)

General Description

The SG1844/45 family of control ICs provides all the required

Overview

SG1844/SG1845/SG3844/SG3845 Current Mode PWM Controller.

Key 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-.