TPS23753A
SLVS933B –JULY 2009–REVISED JANUARY 2010
www.ti.com
TYPICAL CHARACTERISTICS (continued)
CONTROLLER BIAS CURRENT
CONTROLLER BIAS CURRENT
vs
vs
TEMPERATURE
VOLTAGE
1200
1000
800
1000
900
800
700
600
Gate Open
VVC = 12 V
Gate Open
TJ = 25°C
500 kHz
250 kHz
500 kHz
250 kHz
100 kHz
100 kHz
500
400
300
600
50 kHz
400
200
0
50 kHz
200
VCTL = 0 V
VCTL = 0 V
100
0
-40
-20
0
20
40
60
80
100
120
7
15
17
9
11
13
TJ - Junction Temperature - °C
VC - Controller Bias Voltage - V
Figure 7.
Figure 8.
SWITCHING FREQUENCY
SWITCHING FREQUENCY
vs
vs
TEMPERATURE
PROGRAMMED RESISTANCE
300
250
650
800
700
RFRS = 60.4 kW (250 kHz)
Ideal
600
550
600
500
Typical
200
150
RFRS = 30.1 kW (500 kHz)
500
450
400
350
400
300
RFRS = 148.5 kW (100 kHz)
RFRS = 301 kW (50 kHz)
100
50
0
200
100
0
60
-40
40
100
120
-20
20
80
0
0
10
20
30
40
50
6
-1
TJ - Junction Temperature - °C
Programmed Resistance (10 / RFRS ) - W
Figure 9.
Figure 10.
10
Submit Documentation Feedback
Copyright © 2009–2010, Texas Instruments Incorporated
TI [ TEXAS INSTRUMENTS ]
