SEA05L Datasheet, PDF (9/12 Pages) STMicroelectronics – Advanced constant voltage and constant current controller with very efficient LED pilot-lamp driver

SEA05L
Figure 5. Connection of LED to pin LD
Application information
Vcc
1.23 V
2.5 V
+
-
50mV ₊
-
Vcc
6
5
3
4
2
GND
1
OSC
Isense
LED
Out
Vctrl
LD
ILED
RLED
Figure 6. LED current waveform with a typical frequency of 1 kHZ
I
T=1ms (f=1kHz)
I_LED
t_on=125 µs (T/8)
AM04988v1
t
AM04989v1
Doc ID 18462 Rev 1
9/12