Datasheet

LTC3850/LTC3850-1
19
38501fc
Figure 7. Equivalent Input Circuit of Error Amplifier
Figure 5. Two Different Modes of Output Voltage Tracking
Figure 6. Setup for Coincident and Ratiometric Tracking
APPLICATIONS INFORMATION
TIME
(5a) Coincident Tracking
V
OUT1
V
OUT2
OUTPUT VOLTAGE
38501 F03a
V
OUT1
V
OUT2
TIME
38501 F03b
(5b) Ratiometric Tracking
OUTPUT VOLTAGE
R3 R1
R4 R2
R3
V
OUT2
R4
(6a) Coincident Tracking Setup
TO
V
FB1
PIN
TO
TK/SS2
PIN
TO
V
FB2
PIN
V
OUT1
R1
R2
R3
V
OUT2
R4
38501 F06
(6b) Ratiometric Tracking Setup
TO
V
FB1
PIN
TO
TK/SS2
PIN
TO
V
FB2
PIN
V
OUT1
–
+
I I
D1
TK/SS2
0.8V
V
FB2
D2
D3
38501 F07
EA2