SG3524P013TR

Overview

The SG3524P013TR is a voltage mode PWM controller manufactured by STMicroelectronics, designed for regulating power supplies and switching regulators. It operates within an input voltage range of 8V to 40V and supports a maximum switching frequency of 300kHz. The device features a maximum duty cycle of 45% and provides two output channels suitable for push-pull topologies. It delivers up to 100mA output current at 18V and functions reliably between 0°C and +70°C. Packaged in a 16-pin SOIC surface-mount format, it integrates complete PWM control circuitry including an error amplifier, programmable oscillator, and shutdown circuitry.

Feature Summary

• Integrates complete PWM power control circuitry on a single monolithic chip
• Features dual alternating outputs supporting both single-ended and push-pull applications
• Includes built-in current-limiting and shut-down circuitry for protection
• Maintains low standby current consumption typical of 8mA

Applications

• Regulating power supplies
• Transformer-coupled DC-to-DC converters
• Switching regulators of either polarity

Procurement Notes

Verify the specific suffix P013TR against official STMicroelectronics documentation to confirm package type and reel specifications. Ensure compatibility with the required operating temperature range and voltage parameters for your design. Cross-reference the datasheet revision date to validate all electrical characteristics before finalizing procurement decisions.

Selection Notes

Select this component when a fixed-frequency pulse-width modulation technique is required for transformer-coupled converters. It is suitable for applications needing dual uncommitted output transistors for push-pull configurations. Consider its 300kHz operation limit and 45% maximum duty cycle constraints during circuit design to ensure stable regulation under varying load conditions.

Part Context

This part belongs to the SG3524 family of voltage mode PWM controllers. The family is engineered for high-power-output applications using fixed-frequency techniques. It serves as a control element for inverters and polarity converters, providing a comprehensive solution for constructing efficient switching regulators without requiring external complex control logic.

Replacement Considerations

Check for direct equivalents such as the SG3524N or other variants within the SG3524 series. Verify pinout compatibility and electrical parameter alignment, particularly regarding the 300kHz frequency and 45% duty cycle limits, before substituting.