TSM105

4/9

In the above application schematic, the TSM105 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 TSM105

+

-

+

-

1.210V

200mV

Vcc

Out

Vctrl

Gnd

Ictrl

+

-

+

-

1.210V

200mV

Vcc

Out

Vctrl

Gnd

Ictrl

D

+

R2

R1

Rsense

Rvc1

470K

Cvc1

2.2nF

Ric1

22

To primary

OUT+

OUT-

+

TSM105

Cic1

100nF

Cvc2

22pF

IL

IL

Vsense