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IR3502MPBF Datasheet(PDF) 6 Page - International Rectifier

Part # IR3502MPBF
Description  XPHASE3TM CONTROL IC
PDF  39 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IR3502MPBF Datasheet(HTML) 6 Page - International Rectifier

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IR3502
Page 6 of 39
July 28, 2009
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNIT
Minimum Voltage
120
250
mV
Open Voltage Loop Detection
Threshold
Measure V(VCCL)- V(EAOUT), Relative
to Error Amplifier maximum voltage.
125
300
600
mV
Open Voltage Loop Detection
Delay
Measure PHSOUT pulse numbers from
V(EAOUT) = V(VCCL) to VRRDY = low.
8
Pulses
Enable Input
VR 11 Threshold Voltage
ENABLE rising
825
850
875
mV
VR 11 Threshold Voltage
ENABLE falling
775
800
825
mV
VR 11 Hysteresis
25
50
75
mV
Bias Current
0V ≤ V(ENABLE) ≤ 3.3V
-5
0
5
µA
Blanking Time
Noise Pulse < 100ns will not register an
ENABLE state change. Note 1
75
250
400
ns
Over-Current Comparator
Input Offset Voltage
1V ≤ V(IIN) ≤ 3.3V
-40
-25
-10
mV
Input Filter Time Constant
2
µs
Over-Current Threshold
VDRP-VDAC_BUFF
1.07
1.17
1.27
V
Over-Current Delay Counter
ROSC = 7.75 K
(PHSOUT=1.5MHz)
4096
Cycle
Over-Current Delay Counter
ROSC = 15.0 K
(PHSOUT=800kHz)
2048
Cycle
Over-Current Delay Counter
ROSC = 50.0 K
(PHSOUT=250kHz)
1024
Cycle
Over-Current Limit Amplifier
Input Offset Voltage
-10
0
10
mV
Transconductance
Note 1
0.50
1.00
1.75
mA/V
Sink Current
35
55
75
uA
Unity Gain Bandwidth
Note 1
0.75
2.00
3.00
kHz
Over Voltage Protection (OVP) Comparators
Threshold at Power-up
Measure at 1.5V VCCLDRV
1.1
1.21
1.30
V
Threshold during Normal
Operation
Compare to V(VDAC)
105
125
145
mV
OVP Release Voltage during
Normal Operation
Compare to V(VDAC)
-13
3
20
mV
Threshold during Dynamic VID
down
1.70
1.73
1.75
V
Dynamic VID Detect Comparator
Threshold
25
50
75
mV
Propagation Delay to IIN
Measure time from V(VO) > V(VDAC)
(250mV overdrive) to V(IIN) transition to
> 0.9 * V(VCCL).
90
180
ns
IIN Pull-up Resistance
5
15
Propagation Delay to OVP
Measure time from V(VO) > V(VDAC)
(250mV overdrive) to V(ROSC/OVP)
transition to >1V.
90
180
ns
OVP High Voltage
Measure V(VCCL)-V(ROSC/OVP)
0
1.2
V
OVP Power-up High Voltage
ROSC = 7.75 K . Measure
V(VCCLDRV)-V(ROSC/OVP) @ 1.5V
.100
.240
.375
V
OVP Power-up High Voltage
ROSC = 24.5 K . Measure
V(VCCLDRV)-V(ROSC/OVP) @ 1.5V
0
0.2



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