BD9415FS
1.5 Block Diagram
COUT
L
Di
CIN
VIN
+
VCC
LED OPEN / SHORT
PROTECT
REG90
STB
OVP
VREG
SCP OVP
FILTER
REG 90
UVLO
UVLO
FAILB
N
Auto - Restart
Control
CONTROL
LOGIC
DRIVER
CS
CURRENT
SENSE
LEB
+
RT
PWM
COMP
PGND
LED1
OSC
G1
S1
+
-
ERROR
AMP
LED2
-
-
-
-
-
-
-
-
SSOK
G2
S2
+
-
SSFB
+
LED3
G3
S3
+
-
COMP1
COMP4
LED SHORT
+
-
PROTECT
LED4
G4
S4
+
-
+
-
4V
2800kΩ
LSP
1200kΩ
×6.7
VREF
1/ 5
COMP1
-
LED OPEN
PROTECT
+
COMP4
DUTYON
DUTYP
300kΩ
-
+
Over Duty
Protection
PWM 1
PWM4
AGND
300kΩ
300kΩ
Figure 4. Block Diagram
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TSZ02201-0F2F0C100140-1-2
23.May.2016 Rev.001
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TSZ22111・15・001
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