UC3526N

DC DC Switching Controllers Overview

The UC3526N is a regulating pulse width modulator manufactured by Texas Instruments, designed for versatile power conversion applications. It supports multiple topologies including boost, buck, flyback, forward, full bridge, half bridge, and push-pull configurations. The device features two outputs with a maximum switching frequency of 450 kHz and a maximum duty cycle of 50%. It operates within an input voltage range of 8 V to 35 V, providing a regulated output voltage of 5 V and a peak output current of 200 mA. The component is housed in an 18-pin PDIP package and is rated for commercial operating temperatures between 0°C and +70°C.

DC DC Switching Controllers Feature Summary

• Supports multi-topology implementations such as push-pull, half-bridge, and full-bridge converters
• Includes integrated error amplifier and soft-start functionality for stable regulation
• Features clock synchronization capability for noise immunity and system coordination

DC DC Switching Controllers Applications

• Push-pull DC-DC converter designs
• Half-bridge power supply architectures
• Full-bridge isolated power conversion systems
• Forward and flyback transformer-based regulators

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'N' confirms the commercial temperature grade (0°C to +70°C) and through-hole PDIP-18 packaging. Confirm RoHS compliance status via the manufacturer's official documentation. Ensure the ordering part number matches the required pinout and electrical specifications for your design.

DC DC Switching Controllers Selection Notes

Select this component when a dual-output PWM controller is required for isolated or non-isolated topologies. Consider the UC3526N for designs needing a fixed 50% maximum duty cycle limit. Evaluate the 450 kHz switching frequency against thermal and efficiency requirements. Compare against UC2526N if extended industrial temperature ranges are necessary.

DC DC Switching Controllers Part Context

The UC3526N belongs to the UC3526A series of regulating pulse width modulators from Texas Instruments. This family provides robust control for various switching power supplies. The 'N' suffix typically denotes the standard commercial grade variant with through-hole packaging, distinguishing it from surface-mount or military-grade alternatives within the broader UC3526 product line.

DC DC Switching Controllers Replacement Considerations

UC2526N: Offers similar functionality but with an extended industrial temperature range (-25°C to +85°C). UC3526DWTR: Surface-mount alternative in SOIC-18 package. Verify pin compatibility and thermal performance before substitution.