ir3084u International Rectifier Corp., ir3084u Datasheet - Page 25

• Manufacturer Part Number: ir3084u
• Description: Xphasetm Vr10, Vr11 & Opteron/athlon64 Control Ic
• Manufacturer: International Rectifier Corp.

120
110
100
260
240
220
200
180
160
140
120
100
1000
90
80
70
60
50
40
30
20
10
PERFORMANCE CHARACTERISTICS
80
60
40
20
900
800
700
600
500
400
300
200
100
10
10
10
Figure 17: VDAC SINK & SOURCE CURRENT vs. ROSC
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20
20
Figure 13: Oscillator Frequency versus ROSC
20
Figure 15: I(VSETPT) versus ROSC
30
30
30
40
40
40
ROSC (Kohms)
ROSC (Kohms)
ROSC (Kohms)
50
50
50
60
60
60
I(VDAC SOURCE) (uA)
I(VDAC SINK) (uA)
70
70
70
80
80
80
90
90
90
120
110
100
250
230
210
190
170
150
130
110
90
80
70
60
50
40
30
20
10
90
70
50
30
10
200
150
100
-50
50
0
1.E+01
10
10
Figure 16: I(REGSET) CURRENT versus ROSC
20
20
1.E+02
Figure 18: IR3084 Error Amplifier Bode Plot
Figure 14: I(OCSET) versus ROSC
30
30
1.E+03
40
40
1.E+04
ROSC (Kohms)
ROSC (Kohms)
Frequency (Hz)
50
50
1.E+05
60
60
IR3084U
1.E+06
9/14/2005
70
70
1.E+07
80
80
Gain
Phase
1.E+08
90
90