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| EPS2U Power Supply Design Guide, V2.1 | |||
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| STATUS |
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| Recommended |
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| Item | Description | MIN |
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| Tvout_holdup | Time all output voltages stay within regulation | 21 |
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| after loss of AC. |
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| Tpwok_holdup | Delay from loss of AC to deassertion of PWOK. | 20 |
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| Tsb_holdup | Time 5VSB output voltage stays within regulation | 70 |
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AC Input
Tvout_holdup
Vout
| TAC_on_delay |
| Tpwok_low |
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Tsb_on_delay | Tpwok_on | Tpwok_off | Tpwok_on | Tpwok_off |
Tsb on delay | Tpson_pwok | |||
PWOK | Tpwok_holdup |
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5VSB | Tsb_vout | Tsb_holdup |
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PSON# |
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AC turn on/off cycle | PSON turn on/off cycle |
Figure 3: Turn On/Off Timing (Single Power Supply)
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