TSM1051 Просмотр технического описания (PDF) - STMicroelectronics

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TSM1051

Constant voltage and constant current controller for battery chargers and adaptors

STMicroelectronics 

Schematics

3

Schematics

3.1

Internal schematic

Figure 2. Block diagram

1.210 V

+

Vcc

6

+

3 OUT

-

200 mV

4

Ictrl

+

-

5

Vsense

1 Vctrl

2 GND

TSM1051

3.2

Typical application circuit

Figure 3. Typical adaptor or battery charger application using the device

TSM1051

1.210 V

+

Vcc

6

+

3 OUT

-

R1

Rled

Rvc1

Cvc1

200 mV

4

Ictrl

+

-

5

Vsense

1 Vctrl

2 GND

Cic1

Ric1

R2

Vout

Rsense

Ric2

Iout

In the above application schematic, the device is used on the secondary side of a flyback

adaptor (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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