RT9712CGF

Overview

The RT9712CGF is a dual high-side power distribution switch manufactured by Richtek Technology Corporation. It integrates two N-channel MOSFETs with a typical on-resistance of 90mΩ per channel, designed for heavy capacitive loads and short-circuit protection. The device features an internal charge pump operating from 2.7V to 5.5V supply voltages without external components. It provides non-inverting control inputs and an open-drain fault flag output. The component is housed in an 8-SOP package and supports continuous load currents suitable for power distribution systems requiring multiple switches in a single package.

Feature Summary

• Integrates two 90mΩ N-MOSFET power switches within a single package for efficient power distribution.
• Incorporates an internal charge pump to control rise and fall times, minimizing current surges during switching.
• Provides an open-drain fault flag output to indicate over-temperature or over-current conditions.

Applications

• Power distribution systems requiring multiple switches in a single package
• Applications involving heavy capacitive loads
• Short circuit protection circuits

Procurement Notes

Verify the specific suffix CGF against the official datasheet to confirm pinout and thermal characteristics. Ensure compatibility with the required supply voltage range of 2.7V to 5.5V. Check moisture sensitivity levels and storage conditions prior to assembly. Confirm that the 8-SOP package dimensions match the target PCB footprint requirements.

Selection Notes

Select this component when dual high-side switching with integrated surge control is required. The internal charge pump eliminates the need for external bootstrap components, simplifying the design. Consider the 90mΩ on-resistance for efficiency calculations under load. The fault flag feature allows for system monitoring and protection logic integration.

Part Context

The RT9712 series belongs to Richtek's power distribution switch family, designed for robust performance in demanding environments. It complements other high-side switches like the RT9711 by offering dual-channel functionality. The device is part of the broader PMIC portfolio aimed at simplifying power management in consumer and industrial electronics.

Replacement Considerations

Cross-reference with RT9712 variants such as RT9712BZS if different packaging or temperature ratings are needed. Verify electrical parameters against alternative dual high-side switches from other manufacturers to ensure functional equivalence.

FAQ

Does the RT9712CGF require external components for the charge pump?

No, the internal charge pump operates without external components and functions within a supply voltage range of 2.7V to 5.5V.

What is the function of the fault flag output?

The open-drain fault flag output indicates abnormal conditions such as over-temperature or over-current events.