3
dc2345af
DEMO MANUAL DC2345A
QUICK START PROCEDURE
Figure 1. Test Procedure Setup Drawing for DC2345A
SET JP2 FOR SPREAD SPECTRUM
OR EXTERNAL SYNCHRONIZATION
OPTIONAL EXTERNAL
FREQUENCY SYNC
DC2345A F01
OPTIONAL CTRL2
ANALOG DIMMING
FLOAT OKAY
OPTIONAL
CTRL1 ANALOG
DIMMING FLOAT
OKAY
OPTIONAL CONNECT TO
GND FOR SHUTDOWN
FLOAT = ENABLE
SET JP3 FOR PWM DIMMING TYPE
ON = 100% ON WITH NO PWM DIM
INT = INTERNAL PWM DIMMING SET WITH JP1
AND VR1
EXT = EXTERNAL PWM DIMMING SET WITH JP1
AND PWM INPUT
NOTE: SET JP1 TO MATCH JP3
OPTIONAL
PWM INPUT
FOR EXTERNAL
PWM DIMMING
+
–
I
IN
+
–
I
LED
V
IN
+
–
+
–
V
OUT
+
–
+
–
