ir3084a International Rectifier Corp., ir3084a Datasheet - Page 5

• Manufacturer Part Number: ir3084a
• Description: Xphase Tm Vr 10/11 Control Ic
• Manufacturer: International Rectifier Corp.

VRRDY OUTPUT
Output Voltage
Leakage Current
OSCILLATOR
Switching Frequency
Peak Voltage (4.8V typical,
measured as % of VBIAS)
Valley Voltage (0.9V typical,
measured as % of VBIAS)
DRIVER BIAS REGULATOR
REGSET Bias Current
Input Offset Voltage
Short Circuit Current
Dropout Voltage
VCC UNDERíVOLTAGE LOCKOUT
Start Threshold
Stop Threshold
Hysteresis
GENERAL
VCC Supply Current
VOSNS
Note 1: Guaranteed by design but not tested in production
Note 2: VDAC Output is trimmed to compensate for Error Amp input offsets errors
Page 5 of 45
PARAMETER
"FAST"
VDAC
+
-
IR3084
+
-
I(VRRDY) = 4mA
V(VRRDY) = 5.5V
1.5V
1.5V
100 µ A
V(REGDRV) = 0V,
1.5V
Note 1
I(REGDRV) = 10mA, Note 1
Start – Stop
All VID Codes
Figure 1 – System Set Point Test Circuit
0.3V
ISOURCE
ISINK
VDAC
BUFFER
AMP
VOSNS
CURRENT
SOURCE
GENERATOR
TEST CONDITION
IOFFSET
200 OHM
IROSC
ROSC
BUFFER
AMP
0.3V,
+
-
+
-
IROSC
ERROR
AMP
IOCSET
+
-
– 1.5V
– 1.5V,
– 1.5V,
1.2V
EAOUT
VSETPT
OCSET
VOSNS-
VDAC
ROSC
FB
ROSC
RVDAC
CVDAC
MIN
450
575
0.4
9.3
8.5
1.45
70
10
112
10
9
12
200 OHM
SYSTEM
SET POINT
VOLTAGE
TYP
0.87
150
500
800
9.9
9.1
72
13
20
14
1.3
0
99
0
IR3084A
10/30/2006
MAX
1000
1.33
10.3
300
550
9.5
0.75
10
74
15
12
50
18
85
UNIT
kHz
mV
mV
mA
mV
mA
mA
µ A
µ A
%
%
V
V
V