CS1108EDF8

Overview

The CS1108EDF8 is a peripheral driver IC from onsemi, designed for high-current bulb driving applications. It provides up to 350mA of drive current and operates with a supply voltage range of 4.75V to 5.25V. The device features TTL compatible CMOS input logic and supports an operating temperature range of -40°C to +85°C. Packaged in an 8-SOIC (PDSO8) format, it functions as a buffer/inverter based peripheral driver.

Feature Summary

• Provides up to 350mA drive current for powering bulbs
• Compatible with TTL and CMOS input logic levels
• Operates within a standard 5V supply voltage range

Applications

• Airbag system bulb driving
• Type 194 bulb power supply
• Peripheral driver circuits requiring high current output

Procurement Notes

Verify the specific suffix EDF8 against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Ensure the component meets the required automotive or industrial temperature ratings (-40°C to +85°C) for your specific application environment. Cross-reference the part number with authorized distributors to confirm authenticity and avoid counterfeit components.

Selection Notes

Select this component when a dedicated high-current driver is needed for incandescent bulbs, particularly in safety-critical systems like airbags. It is suitable for designs requiring direct interface with TTL/CMOS logic without additional buffering. Consider the thermal performance and PCB layout requirements associated with delivering 350mA continuously in an SOIC-8 package.

Part Context

The CS1108 belongs to onsemi's lineup of specialized ASICs for lighting and ballast control. It is categorized under Gates and Inverters but functions specifically as a peripheral driver. This series addresses niche applications requiring robust current handling in compact packages, distinct from general-purpose logic gates.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs before considering alternative drivers, as current sourcing capabilities and pin configurations may differ significantly across manufacturers.