ISL6595 Datasheet, PDF (21/22 Pages) Intersil Corporation – Digital Multiphase Controller

ISL6595
REGISTER
oovp_limit [5:0]
fault1_mask[12:0]
fault2_mask[12:0]
shutdown_mask[10:0]
ch_mask[6:1]
TABLE 4. KEY REGISTERS (Continued)
DESCRIPTION
FORMAT
Output overvoltage protect threshold. Tracking VID over R/W
voltage threshold.
FAULT1, FAULT2 pin output masks. Inputs are enabled for
reporting when set to logic 1. If multiple inputs are selected,
output is “OR” of selected input signals.
15 = Current ADC over range
14 = Load current monitor
13 = Average total current fault
12 = NVM fault
11 = Internal bus fault
10 = IUVP
9 = OUVP
8 = OOVP
7 = VR_HOT alert
6 = VR_FAN alert
5 = External (thermistor) temp alert
4 = External (thermistor) temp shutdown
3 = Internal (PTAT) temp alert
2 = Internal (PTAT) temp shutdown
1 = MHz controller fault
0 = Calibration fault
Shutdown control mask. Inputs are enabled for shutdown R/W
when set to logic 1. If multiple inputs are selected, output is
“OR” of selected input signals.
11= Averal total current fault
10 = Total current fault during active regulation
9 = Total current fault during soft-start
8 = Individual phase current fault during active regulation
7 = Individual phase current fault during soft-start
6 = Current ADC over range fault
5 = IUVP
4 = OUVP
3 = OOVP
2 = Thermistor temp shutdown
1 = PTAT temp shutdown 0 = Calibration fault
0 = Calibration fault
Channel mask. Selects number of active phases. Phases R/W
must be selected in sequential order.
000011 = 2-phase operation
000111 = 3-phase operation
001111 = 4-phase operation
011111 = 5-phase operation
111111 = 6-phase operation
RANGE
MIN
MAX
0.0mV
787.5mV
RESOLUTION
12.5mV
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21
FN9192.2
December 4, 2008