Datasheet

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OUTPUT RISE TIME AND FALL TIME
vs
TEMPERATURE
Output Rise and Fall TIme − ns
10
15
40
35
30
20
25
tf
tr
(1 nF)
−50 −25 0 25 50 75 100 125
T
J
− Temperature − °C
(1 nF)
10% to 90%
V
DD
= 12 V
I
DD
− Supply Current − mA
−50
2.1
3.0
2.9
2.7
2.6
2.4
2.2
2.0
2.3
2.5
2.8
−25 0 25 50 75 100 125
SUPPLY CURRENT
vs
TEMPERATURE
T
J
− Temperature − °C
NO LOAD
Duty Cycle − %
f − Frequency − kHz
MAXIMUM DUTY CYCLE
vs
OSCILLATOR FREQUENCY
50
100
90
60
0
500
80
70
CT = 220 pF
CT = 1 nF
1000 1500
2000
2500
Maximum Duty Cycle − %
MAXIMUM DUTY CYCLE
vs
TEMPERATURE
90
100
92
94
96
98
−50 −25 0 25 50 75 100 125
UCC28C40
UCC28C42
UCC28C43
T
J
− Temperature − °C
UCC28C4x-EP
BiCMOS LOW-POWER CURRENT-MODE PWM CONTROLLERS
SGLS352B – DECEMBER 2006 – REVISED MAY 2007
APPLICATION INFORMATION (continued)
Figure 18. Figure 19.
Figure 20. Figure 21.
15
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