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IR3084 Datasheet(PDF) 5 Page - International Rectifier

Part No. IR3084
Description  XPHASETM VR 10/11 CONTROL IC
Download  45 Pages
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Maker  IRF [International Rectifier]
Homepage  http://www.irf.com
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IR3084 Datasheet(HTML) 5 Page - International Rectifier

 
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IR3084
Page 5 of 45
07/20/2005
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNIT
VRRDY OUTPUT
Output Voltage
I(VRRDY) = 4mA
150
300
mV
Leakage Current
V(VRRDY) = 5.5V
0
10
µA
OSCILLATOR
Switching Frequency
450
500
550
kHz
Peak Voltage (4.8V typical,
measured as % of VBIAS)
70
72
74
%
Valley Voltage (0.9V typical,
measured as % of VBIAS)
10
13
15
%
DRIVER BIAS REGULATOR
REGSET Bias Current
1.5V ≤ V(REGSET) ≤ VCC – 1.5V
−112
−99
−85
µA
Input Offset Voltage
1.5V ≤ V(REGSET) ≤ VCC – 1.5V,
100µA ≤ I(REGDRV) ≤ 10mA
−12
0
12
mV
Short Circuit Current
V(REGDRV) = 0V,
1.5V ≤ V(REGSET) ≤ VCC – 1.5V,
Note 1
10
20
50
mA
Dropout Voltage
I(REGDRV) = 10mA, Note 1
0.4
0.87
1.33
V
VCC UNDER−VOLTAGE LOCKOUT
Start Threshold
9.3
9.9
10.3
V
Stop Threshold
8.5
9.1
9.5
V
Hysteresis
Start – Stop
575
800
1000
mV
GENERAL
VCC Supply Current
9
14
18
mA
VOSNS− Current
−0.3V ≤ VOSNS− ≤ 0.3V,
All VID Codes
−1.45
−1.3
−0.75
mA
Note 1: Guaranteed by design but not tested in production
Note 2: VDAC Output is trimmed to compensate for Error Amp input offsets errors
200 OHM
+
-
+
ISINK
IOFFSET
"FAST"
VDAC
-
ISOURCE
ERROR
AMP
VDAC
BUFFER
AMP
IROSC
IROSC IOCSET
ROSC
BUFFER
AMP
CURRENT
SOURCE
GENERATOR
1.2V
+
-
EAOUT
VSETPT
FB
VDAC
OCSET
ROSC
VOSNS-
IR3084
ROSC
RVDAC
CVDAC
200 OHM
SYSTEM
SET POINT
VOLTAGE
Figure 1 – System Set Point Test Circuit


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