Datasheet

UCC28050, UCC28051
UCC38050, UCC38051
SLUS515F−SEPTEMBER 2002 − REVISED MARCH 2009
20
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TYPICAL CHARACTERISTICS
Figure 14
g
M
AMPLIFIER OUTPUT CURRENT
vs
OUTPUT SENSE VOLTAGE
I
COMP
− gM Amplifier Output Current − mA
V
VO_SNS
− Output Sense Voltage − V
2.82.0 2.52.42.2 2.72.1 2.6
0.5
0
−1.5
−1.0
−0.5
1.0
2.3
1.5
UCCx8051
UCCx8050
g
M
AMPLIFIER OUTPUT CURRENT
vs
OUTPUT SENSE VOLTAGE
(SMALL SIGNAL VIEW)
I
COMP
− gM Amplifier Output Current − mA
V
VO_SNS
− Output Sense Voltage − V
Figure 15
2.602.40 2.502.45 2.55
−0.012
−0.004
0
0.004
0.008
0.012
−0.008
Figure 16
VOLTAGE AMPLIFIER OUTPUT
vs
TIME (UCC38050)
V
COMP
− Voltage Amplifier Output − V
25 μs / div
4.5
5.0
3.5
1.5
2.5
2.0
3.0
4.0
5.5
V
SENSE
V
AO
C
LOAD
= 10 nF
OVERVOLTAGE PROTECTION THRESHOLDS
vs
TEMPERATURE
V
OVP
− OVP Threshold Voltage − V
T
J
− Temperature − °C
Figure 17
12
5
−50 50250 100−25 75
2.65
2.60
2.80
2.40
2.45
2.55
2.75
2.70
2.50
OVP OFF
OVP ON