Datasheet

PRE-CHG
PGOOD
IN
DRVC
GN
CE
IFB DRVE
VFB
V
REF
V
REF
COMP
250mV
ISNSP ISNSM
ISNS
25 mV
+
+
0.90V
REF
0.95V
REF
VoltageReference
2.3Vat25 C
3.5mV/C
o
-
V
IN
V
IN
R
Q
S
L1
R
Q
S
L2
STAT2
STAT1
BSTOP
S0
S1
V
VFB
CurrentSense
Comparator
Driver
VoltageLoop
Current Limit
VoltageSense
Comparator
UVLO
EnableComparator
V
VFB
V
IN
V
IN
Q1
Q2
Q3
Q4
Q5
Q7
Q8
Q9
12W
V
REF
bq24450
SLUS929C –APRIL 2009– REVISED FEBRUARY 2012 www.ti.com
Figure 2. Simplified Block Diagram
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