Linear Technology LT8391EFE Demo Manual page 3

QUICK START PROCEDURE
+
–
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 CONNECT TO
+
–
I
IN
+
V
IN
–
GND FOR SHUTDOWN
FLOAT = ENABLE
OPTIONAL
PWM INPUT
FOR EXTERNAL
PWM DIMMING
Figure 1. Test Procedure Setup Drawing for DC2345A
DEMO MANUAL DC2345A
+
–
OPTIONAL OPTIONAL CTRL2
CTRL1 ANALOG ANALOG DIMMING
DIMMING FLOAT FLOAT OKAY
OKAY
+ –
I
LED
+
V
OUT
–
SET JP2 FOR SPREAD SPECTRUM
OR EXTERNAL SYNCHRONIZATION
OPTIONAL EXTERNAL
FREQUENCY SYNC
DC2345A F01
dc2345af
3