ISL6251 Datasheet, PDF (9/20 Pages) Intersil Corporation – Low Cost Multi-Chemistry Battery Charger Controller

ICM
ACSET
ACPRN
ACLIM
ICOMP
VCOMP
VADJ
CELLS
VREF
ISL6251, ISL6251A
CSIP CSIN
+ _CA1 -
×_C1A9.19
DCIN
++
--
11..2276VV
Adapter
CCuurrrreenntt LLiimmiitt SSeett
22..11VV ₊
gm1
-
Voltage
Selector
-
gm3
+
Min
Current
Buffer
Min
Voltage
Buffer
-
++
0.25VV_CCAA22
V_CA2
gm2
VDD
Reference
C^×2A02
- CA2
LDO
Regulator
LDO
Regulator
VDD
BOOT
UGATE
-
PWM
+
VDDP
PHASE
VDDP
LGATE
PGND
- ^11..00665VV
+
EN
GND
CSON CSOP _CHLIM
FIGURE 11. FUNCTIONAL BLOCK DIAGRAM
9
FN9202.1
June 17, 2005