RH-PMICL1AK1

Current Regulation/Management Overview

The RH-PMICL1AK1 is a rad-hard integrated current limiter designed to work with an external P-channel power MOSFET. It protects power supplies from anomalous external current demand, such as latch-up conditions. The device features three user-configurable operating modes: re-triggerable, latched, and foldback. Key parameters including current limit, trip-off/recovery times, and undervoltage protection are configurable. It operates on a wide-range supply voltage of 8.5 V to 52 V DC, extendable up to 90 V. Typical DC current is 1.5 mA. It utilizes ST's BCD6s-SOI technology for radiation hardness, offering 100 krad (Si) TID HDR and SEL/SEU freedom up to 78 MeV.cm²/mg. Housed in a hermetic Flat-20 package.

Current Regulation/Management Feature Summary

• Integrated current limiter for external P-channel MOSFET
• Three configurable operating modes: re-triggerable, latched, foldback
• Radiation hardened via BCD6s-SOI technology
• Hermetic Flat-20 package for harsh environments

Current Regulation/Management Applications

• Protection against load latch-up conditions
• Replacement or protection of conventional fuses
• Control of redundant loads
• Power bus protection in high-radiation environments

Current Regulation/Management Procurement Notes

Verify the specific suffix 'K1' against official STMicroelectronics documentation to confirm package type and qualification status. Ensure compatibility with external P-channel MOSFET selection. Confirm radiation hardness requirements match project specifications. Check for QML-V qualification availability if required by application standards.

Current Regulation/Management Selection Notes

Select this component when radiation tolerance and precise current limiting are critical. Consider the need for configurable trip-off and recovery times. Evaluate the floating ground capability for buses exceeding 52 V. Ensure the external MOSFET matches the voltage and current ratings supported by the limiter.

Current Regulation/Management Part Context

The RH-PMICL1AK1 belongs to STMicroelectronics' rad-hard PMIC family. It complements other radiation-tolerant components used in aerospace and defense applications. Designed for reliability in space and high-altitude environments, it integrates smart current sensing and remote control capabilities via status and control pins.

Current Regulation/Management Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult STMicroelectronics directly for qualified alternatives or cross-reference options.