SSI
EPS1U Power Supply Design Guide, V1.1
Contents
1
2
3
4
5
6
7
8
Purpose | 5 | ||
Conceptual Overview | 5 | ||
Definitions/Terms/Acronyms | 6 | ||
Mechanical Overview | 7 | ||
4.1 | High Power Card Edge Form Factor | 7 | |
4.2 | Alternate Enclosure | 8 | |
4.3 | Airflow Requirements | 9 | |
4.4 | Temperature Requirements | 9 | |
AC Input Requirements | 10 | ||
5.1 | AC Inlet Connector | 10 | |
5.2 | AC Input Voltage Specification | 10 | |
5.3 | Input Under Voltage | 10 | |
5.4 | Efficiency | 11 | |
5.5 | AC Line Dropout | 11 | |
5.6 | AC Line Fuse | 11 | |
5.7 | AC Inrush | 11 | |
5.8 | AC Line Transient Specification | 12 | |
5.9 | AC Line Fast Transient Specification | 12 | |
DC Output Specification | 13 | ||
6.1 | Connector | 13 | |
6.2 | Grounding | 15 | |
6.3 | Remote Sense | 15 | |
6.4 | Output Power/Currents | 15 | |
| 6.4.1 | Standby Outputs | 17 |
6.5 | Voltage Regulation | 18 | |
6.6 | Dynamic Loading | 18 | |
6.7 | Capacitive Loading | 19 | |
6.8 | Ripple / Noise | 19 | |
6.9 | Timing Requirements | 20 | |
Protection Circuits | 23 | ||
7.1 | Current Limit | 23 | |
7.2 | 240VA Protection | 23 | |
7.3 | Over Voltage Protection | 24 | |
7.4 | Over Temperature Protection | 24 | |
Control and Indicator Functions | 25 | ||
8.1 | PSON# | 25 | |
8.2 | PWOK (Power OK) | 26 | |
8.3 | ACWarning | 27 | |
8.4 | Field Replacement Unit (FRU) Signals | 28 | |
| 8.4.1 | FRU Data | 28 |
| 8.4.2 | FRU Data Format | 28 |
8.5 | LED Indicator | 30 | |
