Datasheet

TSM1012
4/8
In the above application schematic, the TSM1012 is used on the secondary side of a flyback adapter (or
battery charger) to provide an accurate control of voltage and current. The above feedback loop is made
with an optocoupler.
Figure 1 : Internal Schematic
Figure 2 : Typical Adapter or Battery Charger Application Using TSM1012
2
8V
Vref
V
cc
CC
CC-
CC+
G
nd
CV
CV-
CV+
O
ut
1,25V
3
4
8
5
1
7
2 6
Rsense
C2
R2
R1
C1
C3
optocoupler
secondary side
Cic1
2,2nF
Cvc1
2,2nF
Ric1
22K
Rvc1
22K
Rlimit
R4
R5
R3
D1
D2
OUT+
OUT-
Ric2
1K
PWM
controller
optocoupler
primary side
TSM1012
28V
Vref
Vcc
CC
CC-
CC+
Gnd
CV
CV-
CV+
O
ut
1,25V
3
4
8
5
1
7
2 6
C4
47nF