STLDC08 STMicroelectronics, STLDC08 Datasheet - Page 20

• Manufacturer Part Number: STLDC08
• Description: Step-up controller for LED supply
• Manufacturer: STMicroelectronics

Application information
Figure 19. Current diagram ON state
Figure 20. Current diagram OFF state
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Another important parameter is the drain source breakdown voltage. During the ON state,
the potential of the LX point is 0 V, while during the OFF state the potential of this point rises
to the output voltage plus the forward voltage of the D1. Therefore, the absolute V
of the main switch must be greater than this voltage to prevent main switch damage.
AM07849v1
AM07849v1
VBAT
VBAT
VBAT
VBAT
AM07850v1
AM07850v1
STLDC08
STLDC08
STLDC08
STLDC08
C
C
IN
IN
C
C
SENSE
SENSE
SENSE
SENSE
IN
IN
VOUT
VOUT
VOUT
VOUT
DVR
DVR
DVR
DVR
FB
FB
FB
FB
L1
L1
L1
L1
Doc ID 18476 Rev 1
Rsense
Rsense
Rsense
Rsense
LX
LX
LX
LX
ON state
ON state
OFF state
OFF state
D1
D1
D1
D1
C
C
LED
LED
LED
LED
C
C
OUT
OUT
OUT
OUT
R
R
R
R
FB
FB
FB
FB
STLDC08
DS
rating