CA3272QX

Power Distribution Switches, Load Drivers Overview

The CA3272QX is a quad-gated inverting power driver manufactured by Harris Corporation, designed to interface low-level logic signals with high-current loads. It features four independent open-collector output stages capable of switching up to 600mA per channel. The device incorporates comprehensive protection mechanisms including independent over-current limiting and thermal shutdown with hysteresis. It operates within an extended temperature range of -40°C to +125°C and accepts standard 5V CMOS or TTL input logic levels.

Power Distribution Switches, Load Drivers Feature Summary

• Four independent open-collector power driver channels for interfacing logic to inductive and resistive loads
• Integrated fault detection logic providing diagnostic flag outputs for system monitoring
• Independent over-current limiting and thermal shutdown protection for each output stage
• Compatibility with standard 5V CMOS and TTL input logic levels

Power Distribution Switches, Load Drivers Applications

• Driving solenoids and relays in industrial control systems
• Actuating stepper motors and DC motors in robotics applications
• Switching incandescent lamps and other resistive loads in automotive environments
• Controlling fuel injectors and motor drivers in appliance circuits

Power Distribution Switches, Load Drivers Procurement Notes

Verify the specific suffix 'QX' against official Harris or Intersil documentation to confirm package type and material specifications. Ensure the component meets required environmental standards for the intended operating temperature range. Cross-reference datasheet revisions to confirm pinout compatibility with existing designs.

Power Distribution Switches, Load Drivers Selection Notes

Select this component when driving multiple low-power loads from a single microcontroller without external transistors. Consider the CA3292A variant if over-voltage clamping on the output is required. Verify that the load current does not exceed the 600mA limit per channel and that thermal management accommodates the dissipation characteristics of the power-frame package.

Power Distribution Switches, Load Drivers Part Context

This part belongs to the CA32xx series of peripheral drivers developed by Harris Corporation, later continued under Intersil. These devices are engineered for robust switching applications requiring isolation between control logic and power loads. The CA3272 specifically provides a cost-effective solution for multi-channel switching in compact form factors.

Power Distribution Switches, Load Drivers Replacement Considerations

The CA3292A serves as a functional substitute offering identical switching capabilities with added over-voltage Zener clamp protection on each output. Verify pin compatibility and ensure the additional protection features align with the target application requirements.