IR3080 International Rectifier, IR3080 Datasheet - Page 40

• Manufacturer Part Number: IR3080
• Description: XPHASE VRD10 CONTROL IC WITH VCCVID & OVERTEMP DETECT
• Manufacturer: International Rectifier

TYPICAL PERFORMANCE CHARACTERISTICS
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325
300
275
250
225
200
175
150
125
100
18%
16%
14%
12%
10%
125
115
105
75
50
25
8%
6%
4%
2%
0%
1000
95
85
75
65
55
45
35
25
15
0
950
900
850
800
750
700
650
600
550
500
450
400
350
300
250
200
150
5
10
10
10
Figure 15 - VDAC Source & Sink Currents vc ROSC (includes OCSET
10
20
15
20
15
Figure 16 - Bias Current Accuracy versus ROsC (includes
30
Figure 14 - IFB, BBFB, & OCSET Bias Currents vs ROSC
20
30
20
40
25
40
Figure 13 - Oscillator Frequency versus ROSC
25
50
temperature and input voltage variation)
30
50
30
60
ROSC (K Ohm)
35
35
60
70
40
ROSC (K ohm)
40
80
70
Bias Current)
45
45
90 100 110 120 130 140
ROSC (K Ohm)
80
ROSC (K Ohms)
50
50
90
55
55
60
100
60
65
110
65
70
70
120
75
75
130
80
80
FB, BBFB, OCSET Bias
Current
VDAC Sink Current
VDAC Source Current
140
85
85
90
90
95
ISINK
ISOURCE
95
100
100
9/30/04
IR3080