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SG3845G Datasheet BiCMOS Green-Mode PWM Controllers

Manufacturer: System General

Download the SG3845G datasheet PDF. This datasheet also includes the SG3842G variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (SG3842G-SystemGeneral.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number SG3845G
Manufacturer System General
File Size 239.41 KB
Description BiCMOS Green-Mode PWM Controllers
Download SG3845G Download (PDF)

General Description

The SG348xG series of current-mode PWM con

Overview

Product Specification BiCMOS Green-Mode PWM Controllers SG3842G/ 3843G/ 3844G/ 3845G start-up current has been reduced to 5uA, and the minimum operating current has been reduced to 5mA.

Each SG384xG has a slew rate controlled high current totem pole output, ideally suited for driving a power MOSFET while keeping EMI low.

The current-sense propagation delay is typically 50ns, resulting in significantly more effective constant power protection.

Key Features

  • 384x series pin-to-pin compatible Linearly decreasing PWM frequency Burst-mode at low/zero load 5uA start-up current 5mA operating current Vcc over voltage protection Cycle-by-cycle current limiting Zero cross-conduction Slew rate controlled high current totem pole output Fast current sense propagation delay Under voltage lockout (UVLO) with hysteresis.