SG3524NG4

Overview

The SG3524NG4 is a Texas Instruments PWM controller in a PDIP-16 package. It operates on voltage mode control with dual alternating outputs. The device supports switching frequencies up to 450 kHz and handles a maximum duty cycle of 45%. Electrical specifications include an operating supply voltage range of 8V to 40V, an output current capability of 100mA, and a typical standby current of 8mA. It functions within a temperature range of 0°C to 70°C.

Feature Summary

• Integrates complete pulse width modulation power control circuitry on a single monolithic chip
• Features dual uncommitted outputs suitable for single-ended or push-pull applications
• Includes built-in current-limiting and shut-down circuitry for protection

Applications

• Switching regulators
• Transformer-coupled DC-to-DC converters
• Power inverters

Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's datasheet to confirm RoHS compliance status and pinout compatibility. Ensure the selected package variant matches the required PCB footprint. Confirm that the voltage mode control topology aligns with the target power supply design requirements before procurement.

Selection Notes

Select this component for designs requiring integrated PWM control with dual outputs. Verify that the 450 kHz maximum frequency meets the system's switching speed needs. Ensure the 8V to 40V input range covers the application's supply variations. Check that the PDIP-16 package fits the assembly constraints.

Part Context

This part belongs to the SG series of switching controllers from Texas Instruments. It is functionally related to the UC3524 and LM3524 families, sharing similar core architectures but differing in specific electrical ratings and commercial availability. These components are standard solutions for fixed-frequency pulse-width modulation applications.

Replacement Considerations

Publicly confirmed substitute part numbers for the SG3524NG4 were not identified in the provided source material.