UC2842ANG

DC DC Switching Controllers Overview

The UC2842ANG is a high-performance current mode PWM controller manufactured by onsemi, designed for offline and DC-DC converter applications. It operates within a supply voltage range of 10V to 30V and supports switching frequencies up to 500kHz. The device features a maximum duty cycle of 96% and utilizes an 8-pin PDIP package with through-hole mounting. It provides a single positive output capable of isolation and includes integrated protection mechanisms such as under-voltage lockout and cycle-by-cycle current limiting.

DC DC Switching Controllers Feature Summary

• High-performance current mode control architecture optimized for minimal external component count
• Integrated precision reference and trimmed oscillator for accurate frequency and duty cycle regulation
• Robust protection suite including hysteresis under-voltage lockout and latched cycle-by-cycle current limiting

DC DC Switching Controllers Applications

• Offline flyback power supplies
• Forward converter designs
• Boost DC-DC converters
• General-purpose switch-mode power supplies

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'AN' against official datasheets to confirm it denotes the standard commercial temperature grade variant in the PDIP-8 package. Confirm that the manufacturer status aligns with current production availability, as legacy part numbers may have discontinued statuses or updated ordering codes.

DC DC Switching Controllers Selection Notes

Select this component when designing isolated or non-isolated topologies requiring precise peak current control. Ensure the application voltage remains within the 10V to 30V operating range. Verify that the required maximum duty cycle does not exceed the 96% limit inherent to this specific model variant.

DC DC Switching Controllers Part Context

This part belongs to the UC2842 family of current mode PWM controllers, which are industry-standard solutions for fixed-frequency switching applications. The family shares core functional blocks but varies in UVLO thresholds and duty cycle capabilities across different suffixes to suit specific offline and low-voltage requirements.

DC DC Switching Controllers Replacement Considerations

Direct pin-compatible substitutes include the UC2842BD1R2G from onsemi and the UC2842ADM from Microchip Technology. Verify that alternative packages (SOIC vs PDIP) fit the mechanical constraints and that UVLO thresholds match the system design requirements.