STMicroelectronics L6562A Evaluation Board STEVAL-ILL016V2 STEVAL-ILL016V2 STEVAL-ILL016V2 Data Sheet

  

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Vcc

Vsense

Ictrl

Vctrl

OUT

GND

1

2

3

6

5

4

Vcc

Vsense

Ictrl

Vcc

Vsense

Ictrl

Vctrl

OUT

GND

Vctrl

OUT

GND

1

2

3

6

5

4

1

2

3

6

5

4

1

2

3

6

5

4

Vcc

Vsense

Ictrl

Vctrl

OUT

GND

1

2

3

6

5

4

Vcc

Vsense

Ictrl

Vcc

Vsense

Ictrl

Vctrl

OUT

GND

Vctrl

OUT

GND

1

2

3

6

5

4

1

2

3

6

5

4

1

2

3

6

5

4

1

V

ctrl

Inverting input of the voltage loop op amp. The pin will be tied to the mid-point 
of a resistor divider that senses the output voltage.

2

GND

Ground. Return of the bias current of the device. 0 V reference for all 
voltages.  The pin should be tied as close to the ground output terminal of the 
converter as possible to minimize load current effect on the voltage regulation 
set point.

3

OUT

Common open-drain output of the two internal op amps. The pin, able to sink 
current only, will be connected to the branch of the optocoupler’s photodiode 
to transmit the error signal to the primary side. 

4

I

ctrl

Non-inverting input of the current loop op amp. It will be tied directly to the hot 
(negative) end of the current sense resistor

5

V

sense

Inverting input of the current loop op amp. The pin will be tied to the cold end 
of the current sense resistor through a decoupling resistor.

6

Vcc

Supply Voltage of the device. A small bypass capacitor (0.1 µF typ.) to GND, 
located as close to IC’s pins as possible, might be useful to get a clean 
supply voltage.