PEF 2426 H V1.1 GD

Telecom Overview

The PEF 2426 is a Quad ISDN High Voltage Power Controller (QIHPC) designed to supply power for up to four U-line interfaces. It operates with an ISDN Line Feed Voltage (VILF) ranging from -130 V to -30 V and a logic supply voltage (VDD) between 3.0 V and 6.0 V. The device features intelligent chip temperature control with thresholds at 130 °C, 170 °C, and 190 °C. Each line includes individually programmable current limiting and overcurrent indication via external resistors and capacitors. Integrated relay drivers support eight external relays with open-collector outputs capable of sinking up to 40 mA.

Telecom Feature Summary

• Provides power source for up to four ISDN transmission lines
• Intelligent junction temperature control prevents damage during overloads
• Programmable current limiting and overcurrent indication per channel
• Integrated relay drivers for controlling external loads

Telecom Applications

• Feeding two-wire ISDN transmission lines
• System integration with PEB 24901, PEB 24911, and PEB 2491
• 16-Line Card Applications using DELPHI and QUAD-U architectures

Telecom Procurement Notes

Verify the specific suffix 'H V1.1 GD' against official Infineon documentation to confirm package type and environmental compliance. Ensure compatibility with ETSI TS 102 080 dynamic power feeding requirements. Confirm that the component meets the required operating temperature range for the intended application environment.

Telecom Selection Notes

Select this controller when powering multiple ISDN U-lines from a centralized or local battery source. Ensure external components for current sensing and timing are chosen to meet specific threshold and delay requirements. Verify that the system design accommodates the necessary protection circuitry for lightning surges and foreign voltage contact as recommended in the datasheet.

Telecom Part Context

This component belongs to the QIHPC family, specifically optimized for working in conjunction with DFE-T (PEB 24901), DFE-Q (PEB 24911), and QUAD-U (PEB 2491) interface chips. It utilizes Reliable 170 V Smart Power Technology and is housed in a P-MQFP-44 package.

Telecom Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.