TPS23757
SLVS948D – JULY 2009 – REVISED NOVEMBER 2013
TYPICAL CHARACTERISTICS (continued)
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CONTROLLER BIAS CURRENT
vs
TEMPERATURE
CONTROLLER BIAS CURRENT
vs
VOLTAGE
T J = 25 C
3000
2500
GATE and GAT2 Open
V VC = 12 V
4000
3500
GATE, GAT2 open
o
960 kHz
3000
2000
1500
484 kHz
937 kHz
2500
2000
480 kHz
1000
100 kHz
245 kHz
1500
50 kHz
100 kHz
250 kHz
1000
500
500
0
50 kHz
V CTL = 0 V
0
V CTL = 0 V
?40
?20
0
20
40
60
80
100
120
6
8
10
12
14
16
18
600
T J - Junction Temperature - ° C
Figure 7.
SWITCHING FREQUENCY
vs
TEMPERATURE
R FRS = 34.6 k? ( 484 kHz)
1200
G005
1200
V C ? Controller Bias Voltage ? V
Figure 8.
SWITCHING FREQUENCY
vs
PROGRAM CONDUCTANCE
500
1100
1000
Ideal
400
300
R FRS = 17.35 k? (937 kHz)
R FRS = 69.8 k? (245 kHz)
1000
900
800
600
200
R FRS = 347 k? (50 kHz)
800
Typical
100
0
R FRS = 173 k? (100 kHz)
700
600
400
200
?40
?20
0
20
40
60
80
100
120
T J - Junction Temperature - ° C
G007
0
0
10
20
30
40
50
60
Programmed Resistance (10 6 / R FRS ) ? ? ?1
G008
Figure 9.
Figure 10.
12
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