SI8252-IM

Power Supply Controllers, Monitors Overview

The SI8252-IM is a digital power controller manufactured by Skyworks Solutions Inc. It features an integrated 8051-compatible single-chip flash microcontroller with high-current programmable I/O capabilities. The device includes four timers, an SMBus interface, and analog-to-digital conversion channels. Memory resources consist of 16 Kbytes of FLASH program memory, 256 bytes of data RAM, and 1024 bytes of XRAM. The component is housed in a 28-QFN package.

Power Supply Controllers, Monitors Feature Summary

• Integrates an 8051-compatible digital controller with high-current programmable I/O ports for direct power stage control.
• Includes multiple on-chip peripherals such as four timers, an SMBus interface, and mixed-signal ADC channels.
• Provides substantial internal memory capacity with 16 Kbytes of FLASH and dedicated data storage.

Power Supply Controllers, Monitors Applications

• Digital power supply controllers
• Battery management systems
• Industrial motor control applications

Power Supply Controllers, Monitors Procurement Notes

Verify the manufacturer designation carefully, as the SI8252 part number has been associated with both Silicon Laboratories and Skyworks Solutions across different product generations. Confirm that the specific datasheet corresponds to the digital power controller variant rather than other legacy components sharing similar identifiers. Ensure the package type matches the required 28-QFN footprint for your design.

Power Supply Controllers, Monitors Selection Notes

Select this component when a combined microcontroller and gate driver solution is required for power management. The integrated 8051 architecture allows for complex control algorithms without external processing units. Evaluate the high-current I/O specifications against the load requirements of the target power stages. Consider the available timer and ADC resources for system monitoring and timing precision needs.

Power Supply Controllers, Monitors Part Context

This component belongs to the family of digital power controllers that merge processing logic with power driving functions. It replaces traditional designs requiring separate microcontrollers and discrete driver ICs. The integration reduces board space and simplifies the bill of materials for advanced power conversion topologies.

Power Supply Controllers, Monitors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Cross-reference with Skyworks or Silicon Laboratories official replacement guides for obsolete status verification.