Pin configuration

STCS2A

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2

Pin configuration

Figure 2.

Pin connections (top view)

Table 2.

Pin description

Pin n°

Symbol

Note

Supply voltage

2

PWM

PWM dimming input

3EN

Shutdown

4

NC

No connect

5

DRAIN

Internal N-MOSFET drain

6

SOURCE

Internal N-MOSFET source. Reference voltage is 100 mV. An external resistor between

SOURCE and GND pins sets different current levels for different application needs

7FB

Feedback input. The control loop regulates the current in such a way that the average

voltage at the FB input is 100 mV (nominal). The cathode of the LED and a resistor to

ground to set the LED current should be connected at this point

8

GND

Ground

9

SLOPE

Capacitor for slope control

10

DISC

Load disconnection flag (open drain)

exp-pad

Internally connected to ground