IR3522 International Rectifier, IR3522 Datasheet - Page 17

• Manufacturer Part Number: IR3522
• Description: DDR & VTT CONTROL IC
• Manufacturer: International Rectifier

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CROWBAR
Additional
Flagged
Response
*Pulse number range depends on Rosc value selected (See Specifications Table)
** IIN1 is pulled low when SS charges above 0.4V.
Response
Soft Stop
Disables
Affected
Outputs
PGood
Delays
Latch
Reset
Flags
.
EA
Page 17
IIN1 pin is pulled-up to VCCL when SS discharge below 0.35V. This action latches on the Phase IC(s)
Pulses
Open
Daisy
Clock
32
UVLO CLEARED Latch
Recycle VCCL
Sense
Open
Diode Emulation Mode which insure proper current sharing during soft start**.
No
PHSOUT
Control
Pulses
Open
8
Table 5 – IR3522 Fault protocol
Tracking
Fault
Recycle EN or Cycle VID_OFF through
Yes
Yes
No
No
ENABLE CLEARED Latch
Yes
(VCCL)
UVLO
Both
No
Yes,
SVID
Counter
Delay
OC
Voltage
Over
No
Blanking
Disable
SS discharge below
250ns
Time
SS Latch
0.22V
Yes
No
VID_OFF
SVID
No
No
V3.01
IR3522
UVLO
(Vout)
none
No
No
No
No
No
No