IR2157_07 IRF [International Rectifier], IR2157_07 Datasheet - Page 18

• Manufacturer Part Number: IR2157_07
• Description: FULLY INTEGRATED BALLAST CONTROL IC
• Manufacturer: IRF [International Rectifier]

IR2157
tDEAD
(nsec)
fOSC
(KHz)
Vccuv
(V)
Figure 25: V
53.75
53.25
52.75
52.25
11.5
10.5
1000
53.5
52.5
9.5
990
980
970
960
950
940
930
920
910
900
12
11
10
Figure 29: t
54
53
52
9
Figure 27: f
-25
11
11
11.5
11.5
0
CCUV+
(RT=330k , CT=300pF)
DEAD
OSC
12
T = -25C
T = 25C
T = 75C
T = 125C
12
and V
25
versus V
versus V
12.5
12.5
Temperature (C)
VCC (volts)
CCUV-
VCC (volts)
13
50
13
CC
CC
Vccuv+
Vccuv-
and temperature
versus temperature
and temperature
13.5
13.5
75
14
ADVANCED INFORMATION
14
100
14.5
14.5
T = -25C
T = 25C
T = 75C
T = 125C
15
125
15
18
(nsec)
tfall
(KHz)
Iqbs1
fOSC
(uA)
80
70
60
50
40
30
20
207.5
202.5
197.5
192.5
80
70
60
50
40
30
20
10
0
210
205
200
195
190
11
Figure 28: f
0
Figure 30: t fall versus V
11
2
11.5
11.5
Figure 26: I
T = -25C
T = 25C
T = 75C
T = 125C
4
(RT=6.2k , CT=300pF)
OSC
12
12
6
versus V
12.5
12.5
8
QBS1
VBS (volts)
VCC (volts)
VCC (volts)
10
13
CC
CC
13
versus V
and temperature
12
and temperature
13.5
13.5
14
BS
14
T = -25C
T = 25C
T = 75C
T = 125C
14
T = -25C
T = 25C
T = 75C
T = 125C
16
14.5
14.5
18
20
15
15