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SCY99194 Datasheet, PDF (8/40 Pages) ON Semiconductor – Fixed Frequency Current Mode Controller
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SCY99194
TYPICAL CHARACTERISTIC
40
38
36
34
32
30
28
26
24
22
20
−50 −25 0
25 50 75 100 125
TEMPERATURE (°C)
Figure 3. Minimum Current Source Operation
VHV(min)
50
32
30
28
26
24
22
20
−50 −25 0
25 50 75 100 125
TEMPERATURE (°C)
Figure 4. Off−State Leakage Current Istart(off)
8.8
45
IHV(off) @ VHV = 325 V
8.7
8.6
40
8.5
35
IHV(off) @ VHV = 141 V
8.4
30
8.3
25
8.2
20
−50 −25 0
25 50 75 100 125
TEMPERATURE (°C)
Figure 5. Off−Mode HV Supply Current IHV(off)
8.1
−50
−25 0
25 50 75 100 125
TEMPERATURE (°C)
Figure 6. High Voltage Startup Current
Flowing Out of VCC Pin Istart2
0.75
0.74
0.73
0.72
0.71
0.70
0.69
0.68
0.67
0.66
0.65
−50 −25
0
25
50
75 100 125
TEMPERATURE (°C)
Figure 7. Maximum Internal Current Setpoint
VILIM
310
308
306
304
302
300
298
296
294
292
290
−50 −25
0
25
50
75 100 125
TEMPERATURE (°C)
Figure 8. Frozen Current Setpoint VI(freeze) for
the Light Load Operation
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