ICL7673CBAZA-T

Overview

The ICL7673CBAZA-T is an OR controller and source selector switch manufactured by Renesas Electronics Corporation. It supports N-channel and P-channel FETs in a 2:1 input-to-output configuration. The device operates within a supply voltage range of 2.5V to 15V and draws a typical supply current of 1.5 µA. It features internal switches with a maximum output current of 38mA. The component is housed in an 8-SOIC package (0.154 inch width) and is designed for surface-mount installation. It functions effectively as an ideal diode or power path controller.

Feature Summary

• Supports both N-channel and P-channel field-effect transistors for flexible power path design
• Integrates internal switching elements to minimize external component count
• Provides low quiescent current operation suitable for battery backup applications

Applications

• Battery backup systems requiring seamless source selection
• Industrial power management circuits
• Automotive grade power distribution networks
• High-current switching applications

Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging when sourcing. Confirm RoHS compliance status, as some variants may differ. Check for end-of-life notices, as this family has seen discontinuation announcements. Ensure the 8-SOIC footprint matches the target PCB layout. Validate that the 38mA output current meets system requirements before integration.

Selection Notes

Select this component for designs requiring dual-source redundancy with minimal standby power consumption. Consider the 2:1 ratio for primary and secondary power inputs. Evaluate the 1.5 µA supply current against strict energy budgets. The SOIC-8 package offers a compact solution for space-constrained boards. Verify compatibility with both N-channel and P-channel MOSFETs based on the load characteristics.

Part Context

This part belongs to the ICL7673 series of OR controllers and source selectors. It is related to other Renesas power management ICs like the ICL7660 charge pump regulators. The series focuses on efficient power routing and redundancy. The CBAZA variant specifies the commercial temperature range and tube/tape packaging options within the broader product line.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The datasheet indicates potential end-of-life status for the family. Engineers should consult official Renesas channels for direct equivalents or next-generation replacements.