Datasheet

   
   
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SLUS395J - FEBRUARY 2000 - REVISED MARCH 2009
16
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APPLICATION INFORMATION
capacitor ripple reduction (continued)
CT
RT
R
T
C
T
D2
D1
C1
Gate Drive
From Down
Stream PWM
UCC3817
Figure 7. Synchronizing the UCC3817 to a Down-Stream Converter
Figure 8
141210
7.45
7.50
7.55
7.60
7.40
VCC − Supply Voltage − V
13119
VREF − Reference Voltage − V
REFERENCE VOLTAGE
vs
SUPPLY VOLTAGE
Figure 9
REFERENCE VOLTAGE
vs
REFERENCE CURRENT
0 5 10 15 20 25
7.495
7.500
7.505
7.510
7.490
VREF − Reference Voltage − V
I
VREF
− Reference Current − mA