TSM1012 STMicroelectronics, TSM1012 Datasheet - Page 4

• Manufacturer Part Number: TSM1012
• Description: LOW CONSUMPTION VOLTAGE AND CURRENT CONTROLLER FOR BATTERY CHARGERS AND ADAPTORS
• Manufacturer: STMicroelectronics

TSM1012
Figure 1 : Internal Schematic
Figure 2 : Typical Adapter or Battery Charger Application Using TSM1012
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.
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controller
PWM
primary side
optocoupler
D1
D2
Rlimit
C1
1
5
3
CV+
CC+
C2
47nF
CC-
C4
2
Vref
1,25V
R4
R5
Rsense
1
5
3
TSM1012
CV+
CC+
CC-
Gnd
2
CV
CC
Vref
1,25V
Ric2
1K
Vcc
6
Gnd
28V
CV
CC
Vcc
6
28V
8
8
Ric1
CV-
22K
Out
CV-
Out
7
4
7
4
R3
2,2nF
Rvc1
Cic1
22K
2,2nF
Cvc1
secondary side
optocoupler
R2
R1
C3
OUT+
OUT-