TPS23753A
www.ti.com
SLVS933B –JULY 2009–REVISED JANUARY 2010
TYPICAL CHARACTERISTICS (continued)
MAXIMUM DUTY CYCLE
vs
CURRENT SLOPE COMPENSATION VOLTAGE
vs
TEMPERATURE
TEMPERATURE
124
79
RFRS = 301 kW (50 kHz)
78.5
78
122
120
RFRS = 148.5 kW (100 kHz)
77.5
77
118
RFRS = 60.4 kW (250 kHz)
RFRS = 30.1 kW (500 kHz)
116
114
76.5
76
60
80
100
120
20
40
-40
-20
0
20
40
60
80
100
120
-40
0
-20
TJ - Junction Temperature - °C
TJ - Junction Temperature - °C
Figure 11.
Figure 12.
CURRENT SLOPE COMPENSATION CURRENT
BLANKING PERIOD
vs
vs
TEMPERATURE
TEMPERATURE
270
50
115
105
265
260
45
40
35
30
RBLNK = 100 kW
95
85
75
255
RBLNK = 249 kW
250
245
65
55
45
RBLNK = 49.9 kW
RBLNK = RTN
240
235
-40
-20
0
20
40
60
80
100
120
-40
-20
0
20
40
60
80
100
120
TJ - Junction Temperature - °C
TJ - Junction Temperature - °C
Figure 13.
Figure 14.
Copyright © 2009–2010, Texas Instruments Incorporated
Submit Documentation Feedback
11
TI [ TEXAS INSTRUMENTS ]
