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SG3524DR

TISG3524DR

Texas Instruments
Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull Regulator Positive, Isolation Capable Output Step-Up, Step-Down, Step-Up/Step-Down DC-DC Controller IC 16-SOIC
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Overview

The Texas Instruments SG3524DR is a versatile pulse-width modulation (PWM) control integrated circuit designed for a variety of power supply topologies. It integrates all the necessary functions for building switching regulators, including a voltage reference, oscillator, error amplifier, and output stages. This controller is suitable for both isolated and non-isolated DC-DC converter designs.

Why Choose This Part

This controller offers complete PWM power control circuitry with an integrated 5V reference and current limit capabilities, simplifying power supply designs. It supports both single-ended and push-pull output configurations, providing flexibility for different power stage requirements. The device's excellent external sync capability allows for precise timing synchronization in complex power systems.

Applications

Transformer Coupled DC-DC Converters
Ideal for designing isolated power supplies using flyback, forward, half-bridge, or full-bridge topologies, providing power conversion with galvanic isolation.
Non-Isolated Switching Regulators
Can be used in buck, boost, and buck-boost (step-up/step-down) configurations for efficient voltage conversion without isolation requirements.
Polarity Converters
Enables the creation of inverting power supplies, converting a positive input voltage to a negative output voltage.
Voltage Doublers
Suitable for transformer-less voltage doubler circuits where a higher output voltage is needed from a lower input, without magnetic components.
Universal Power Supply Control
Its broad topology support makes it a flexible choice for general-purpose power supply control in various electronic systems.

Key Specifications

Function Step-Up, Step-Down, Step-Up/Step-Down
Topology Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull
Clock Sync No
Output Type Transistor Driver
Mounting Type Surface Mount
Output Phases 1
Package / Case 16-SOIC (0.154", 3.90mm Width)
Control Features Current Limit, Frequency Control
Duty Cycle (Max) 45%
Number of Outputs 2
Output Configuration Positive, Isolation Capable
Frequency - Switching 450kHz
Operating Temperature 0degC ~ 70degC (TA)
Synchronous Rectifier No
Supplier Device Package 16-SOIC
Voltage - Supply (Vcc/Vdd) 8V ~ 40V

Getting Started

To get started with the SG3524DR, engineers should refer to its comprehensive datasheet for detailed application circuits and design considerations. Texas Instruments provides various application notes on switching power supply design that are relevant to this controller. Standard power supply design tools and simulation software can be used to model and optimize circuits based on the SG3524DR.

Also Consider

LT1074HV ADIAnalog Devices Inc. - The LT1074HV is a high-voltage switching regulator that can handle higher input voltages and output currents, suitable for more robust power conversion needs.

Categories

Power Management > Switching Regulators