Datasheet

Data Sheet ADD5205
Rev. 0 | Page 3 of 16
FUNCTIONAL BLOCK DIAGRAM
UVP
REF
UVP COMP
LL
REF
LL COMP
PWM
COMP
ERROR
AMP
REF
R
S
Q
THERMAL
SHUTDOWN
SOFT START
CURRENT SENSE
VOLTAGE
REFERENCE
SHUTDOWN
HEADROOM CONTROL
CURRENT SOURCE 1
CURRENT SOURCE 2
CURRENT SOURCE 3
CURRENT SOURCE 4
OSC
LED OPEN FAULT
PROTECTION
7
OCP
REF
OVP
REF
DCOMP
DREF
+
+
ISET
VIN SHDN OVP
SW
GND
6
8
V
REF
GENERATOR
FB1
FB2
FB3
FB4
PWM
C_FILTER
R
C
C
C
R
SENSE
R_FILTER
R1
R2
1 2 5
4
3
12
11
10
9
8
6
7
09858-003
GM
Figure 2. Functional Block Diagram