5962-8670405PA

Overview

The Texas Instruments 5962-8670405PA is a military-grade current mode PWM controller housed in an 8-pin CDIP package. It operates within a supply voltage range of 4.5 V to 36 V and supports switching frequencies up to 500 kHz. The device functions across an extended temperature range from -55°C to +125°C. Key electrical characteristics include a high-voltage oscillator with a 10:1 duty cycle ratio, a precision 5-V reference, and a high-current output capable of driving large MOSFETs.

Feature Summary

• Integrated error amplifier for precise voltage regulation
• Multi-topology support for various power converter configurations
• High-current output stage for direct MOSFET drive

Applications

• Military power supply systems
• High-reliability DC-DC converters
• Aerospace control electronics

Procurement Notes

Verify the specific suffix and grade against official datasheets before procurement. Confirm availability status as military parts often have restricted distribution channels. Ensure environmental compliance requirements match project specifications. Validate pinout compatibility with existing PCB layouts.

Selection Notes

Select this component for applications requiring robust current-mode control in harsh environments. Consider the wide input voltage range and high-frequency capability for efficient design. Evaluate thermal management needs given the extended operating temperature range. Compare performance metrics against standard commercial alternatives for cost-benefit analysis.

Part Context

This part belongs to the UC3842/UC2842 family of current mode PWM controllers. It is a militarized version designed for high reliability. The series is widely used in industrial and defense power supplies. It offers a balance of performance and ruggedness for critical systems.

Replacement Considerations

Check for compatible substitutes such as the UC3842 or UC2842 series variants. Verify pin-to-pin compatibility and electrical parameter equivalence. Ensure the replacement meets the same military qualification standards if required.