S-8424AAUFT-TB-U

Power Supply Controllers, Monitors Overview

The S-8424AAUFT-TB-U is a CMOS battery backup switching IC from the S-8424A Series, manufactured by ABLIC. It integrates two voltage regulators, three voltage detectors, and a power supply switch with controller on a single chip. Designed for primary and backup power supply circuits, it provides microcontrollers with three types of voltage detection outputs corresponding to supply voltage. The device operates within a temperature range of -40°C to +85°C and utilizes a TSSOP-8 package.

Power Supply Controllers, Monitors Feature Summary

• Integrates dual voltage regulators, triple voltage detectors, and a power supply switch controller on a single CMOS chip
• Provides three distinct voltage detection output signals synchronized with power supply voltage levels
• Employs special sequence control logic to optimize backup power supply utilization during switching

Power Supply Controllers, Monitors Applications

• Primary and backup power supply switching circuits
• Microcontroller system power management
• Battery backup system configuration

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'TB' against official ABLIC documentation to confirm pinout and electrical characteristics. Confirm RoHS compliance status as indicated in component databases. Ensure the TSSOP-8 package dimensions match your PCB footprint requirements before finalizing procurement.

Power Supply Controllers, Monitors Selection Notes

Select this component when designing systems requiring integrated power switching and monitoring without external discrete components. The fixed threshold nature requires careful matching of detector voltages to MCU reset levels. Consider the low quiescent current specification if battery life is a critical design constraint.

Power Supply Controllers, Monitors Part Context

This part belongs to the S-8424A Series, a family of CMOS ICs dedicated to power supply support. Unlike simple LDOs or standalone supervisors, this series combines regulation, detection, and switching functions. It addresses the need for compact, reliable backup power architectures in embedded applications where space and component count are limited.

Power Supply Controllers, Monitors Replacement Considerations

Direct replacements must offer identical pin compatibility and integrated regulator/detector/switch functionality. Verify that substitute parts support the same TSSOP-8 package and operate within the -40°C to +85°C temperature range. Cross-reference voltage detector thresholds to ensure MCU compatibility.