Electrical Specifications
Electrical Characteristics
4. To achieve almost constant power limit for the universal input range, current protection self-adjusts thresholds in four
zones of input voltage levels. A margin of 50% compared to the rated current is considered for the threshold current
values.
5. Threshold of negative voltage drop across Rsns due to instantaneous current
6. With input divider ratio of 1/100, these values are equivalent to 90 Vrms<Vline<135 Vrms
.
7. With input divider ratio of 1/100, these values are equivalent to 135 Vrms<Vline<185 Vrms
8. With input divider ratio of 1/100, these values are equivalent to 185 Vrms<Vline<245 Vrms
9. With input divider ratio of 1/100, these values are equivalent to 245 Vrms<Vline<275 Vrms
.
.
.
10.When OCP pin is above VIOVER_CYC_ON as 1.68V, then SW is controlled by the PWM block for on and off.
11.When OCP pin is below VIOVER_CYC_OFF as 1V, then SW is turned off and released at the next switching cycle if OCP
pin is above VIOVER_CYC_ON
Copyright © 2009 Marvell
Doc. No. MV-S104983-01 Rev. A
Page 17
October 5, 2009, Preliminary
Document Classification: Proprietary
MARVELL [ MARVELL TECHNOLOGY GROUP LTD. ]
