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IR3521 Datasheet(PDF) 9 Page - International Rectifier

Part # IR3521
Description  XPHASE3TM AMD SVID CONTROL IC
PDF  45 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IR3521 Datasheet(HTML) 9 Page - International Rectifier

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IR3521
Page 9
V3.03
PHSOUT FREQUENCY VS RROSC CHART
PHSOUT FREQUENCY vs. RROSC
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
5
1015202530354045
5055
RROSC (KOhm)
Figure 2 - Phout Frequency vs. RROSC chart
System Fault Table
Response
Open
Daisy
Open
Sense
Open
Voltage
UVLO
(VCCL)
Over
Voltage
Disable
VID_OFF
SVID
OC
Before
OC
After
UVLO
(Vout)
Latch
UV & EN Latch
EN Fault Latch
SS Latch
No
Reset
Recycle VCCL then Enable
Recycle Enable
SS discharge below 0.2V
No
Outputs
Affected
Both
Single
Both
Both
Both
Single
Single
Single
Disables
EA
Yes
No
SS/DELx
Discharge
Yes
No
Flags
PGood
Yes
Delays
32
Clock
Pulses
No
8
PHSOUT
Pulses
No
No
250ns
Blanking
Time
No
PHSOUT
Pulses*
SS/DELx
Discharge
Threshold
No
Additional
Flagged
Response
No
Yes,
IINx and
Rosc pins
pulled-up to
VCCL
No
* Pulse number range depends on Rosc value selected (See Specifications Table)



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