Datasheet
70
75
80
85
90
95
100
105
110
0 10 20 30 40 50 60 70 80 90 100 110
Open-Loop Voltage Gain − dB
R
L
− Output Load Resistance − kΩ
V
IN
= 20 V
T
J
= 25°
G002
R
L
V
OUT
S0021-01
C
T
R
T
9
8
RT
CT
2
VREF
5
EA+
10
SYNC
7
COMP
6
EA−
Master
Output
Filters
2 5 10 7 6
VREF EA+ SYNC COMP EA−
Slave
(Additional Units)
9 RT
8 CT
UC2856Q
www.ti.com
SGLS265A –NOVEMBER 2004– REVISED MAY 2011
Figure 4. Error Amplifier Open-Loop DC Gain vs Load Resistance
NOTE: Slaving allows parallel operation of two or more units with equal current sharing.
Figure 5. Parallel Operation
Copyright © 2004–2011, Texas Instruments Incorporated 7