IR3522 International Rectifier, IR3522 Datasheet - Page 7

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

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Over Voltage Protection (OVP) Comparators
VOUT1 Threshold Voltage
VOUT2 Threshold Voltage
VOUT1 Propagation Delay to
CROWBAR
VOUT2 Propagation Delay to
CROWBAR
CROWBAR Pull-up Resistance,
Active
CROWBAR Passive Pull Down
Resistance
CROWBAR Active Pull Down
Resistance to LGND
Track Fault Comparator
Threshold Voltage
Propagation Delay to CROWBAR
Open Sense Line Detection
Sense Line Detection Active
Comparator Threshold Voltage
Sense Line Detection Active
Comparator Offset Voltage
VOSEN+ Open Sense Line
Comparator Threshold
VOSEN- Open Sense Line
Comparator Threshold
Sense Line Detection Source
Currents
VIDx
ENABLE
Threshold Increasing
Threshold Decreasing
Threshold Hysteresis
Bias Current
1024-2048 Count Threshold
CROWBAR
VID0 & VID1 Input Thresholds
Internal Pull-up
Float Voltage
Blanking Time
Over-Current Comparators
Input Offset Voltage
OCSET Bias Current
2048-4096 Count Threshold
Page 7
PARAMETER
Compare to V(VREF1)
Compare to V(VREF1)
Measure time from V(VOUT1) >
V(VREF1) (500 mV overdrive) to
V(CROWBAR) transition to > 2 V with
1nF.
Measure time from V(VOUT2) >
V(VREF1) (250 mV overdrive) to
V(CROWBAR) transition to > 2 V with
1nF.
To VCCL
Compare VOUT1 to VOUT2
Measure time from V(VOUT1) >
V(VOUT1) (1.2V overdrive) to
V(CROWBAR) transition to > 0.9 *
V(VCCL).
V(VOUTx) < [V(VOSENx+) – V(LGND)] /
2
Compare to V(VCCL)
V(VOUTx) = 100mV
0V ≤ V(x) ≤ 3.5V
ROSC value, Note 1
Pull-up to 3.3 V typical
Noise Pulse < 100ns will not register an
ENABLE state change. Note 1
1V ≤ V(OCSETx) ≤ 3.3V
ROSC value, Note 1
TEST CONDITION
MIN
1.38
1.38
11.3
470
-5%
0.8
-35
3.1
86.5
0.36
50
75
150
200
-5
0.99
14.4
230
35
-20
12
Vrosc(V)*1000/
TYP
1.06
Rosc(K )
1.65
100
3.3
25
20
62.5
89.0
0.40
200
500
5
1.65
0.99
260
620
250
40
40
90
16
0
0
0
20
MAX
V3.01
IR3522
1.13
1.94
250
3.5
15
65
60
91.5
0.44
250
700
1.94
300
100
100
180
23.1
90
770
400
20
1.2
35
+5
%
29.1
5
UNIT
mV
mV
uA
k
µA
k
ns
V
V
V
V
k
mV
mV
mV
mV
k
uA
ns
ns
ns
%
V
V