PCN-10155
Opal Kelly issues this PCN to existing customers of the listed product(s) to inform them of changes and/or updates that may affect current inventory or current and future applications of the product.
Issue Date
6 November 2025
Affected Parts
The following items are affected by this PCN:
- ECM1900-ZU7CG
- ECM1900-ZU7EG
- ECM1900-ZU7EV
PCB revisions BXX and later are affected by this PCN. Revisions AXX is not affected by this change. The PCB revision is indicated in silkscreen in the location shown below.
Revisions AXX is not affected.
Revisions BXX and later are affected.
Reason for the Change
The Intel Enpirion family of power modules has been discontinued by the manufacturer. Enpirion regulators are used on the ECM1900 to generate several of the on-board system and VCCO supplies. Opal Kelly has identified suitable replacement parts for these supplies.
Description of the Change
The Enpirion devices on the ECM1900 are being replaced as described in the table below.
| Voltage | Application | Origonal Reference | Original P/n | Replacement Reference | Replacement P/N |
|---|---|---|---|---|---|
| 0.85/0.90 V | FPGA VCCINT and VCCBRAM | U24 | Intel EM2140P01QI | U24 | Vishay SiC450ED-T1-GE3 |
| 0.9V | VCCINT_VCU | U26 | Intel EN6347QI | U26 | Diodes Incorporated AP62600SJ-7 |
| 0.9V | MGTAVCC | U38 | Intel EN6347QI | U38 | Diodes Incorporated AP62600SJ-7 |
| VCCO_67 | Adjustable supply voltage for FPGA bank 67 | U41 | Intel EN5311QI | U49 | Microchip MIC24045-EIYFL |
| VCCO_28 | Adjustable supply voltage for FPGA bank 28 | U42 | Intel EN5311QI | U44 | Microchip MIC24045-EIYFL |
| VCCO_87_88 | Adjustable supply voltage for FPGA banks 87 and 88 | U43 | Intel EN5311QI | U51 | Microchip MIC24045-EIYFL |
| VCCO_68 | Adjustable supply voltage for FPGA bank 68 | U44 | Intel EN5311QI | U50 | Microchip MIC24045-EIYFL |
Notes:
- The Diodes Incorporated AP62600SJ-7 is capable of the same set of output voltages as the Intel EN6347QI, but it is controlled differently.