ISL6255 Datasheet, PDF (10/22 Pages) Intersil Corporation – Highly Integrated Battery Charger with Automatic Power Source Selector for Notebook Computers

ICM
ACSET
ACPRN
ACLIM
ICOMP
VCOMP
VADJ
CELLS
VREF
ISL6255, ISL6255A
SGATE CSIP CSIN _DCSET
DCPRN
++
--
1.27V
AAddaapptteerr
CCuurrrerennt tLLimimititSSeet t
2.1V
+
gm1
--
Voltage
Selector
CA1 ^-
XC19A.19
+
1.26V
CSON _--
++
DCIN
-
gm3
+
MMMiniinn
CCuurrrreenntt
BBuuffffeerr
MMiinn
VVoollttaaggee
Buffer
-
+
0.25 V_CA2
LDO
ReLgDuOlator
-
-PWM
+
VCA2
gm2
BGATE
DCIN
VDD
BOOT
UGATE
PHASE
VDDP
LGATE
VDD
RReeffeerreennccee
20
- ^CA2
--- ^1.065V
+++
PGND
EN
GND
CSON CSOP _CHLIM
FIGURE 14. FUNCTIONAL BLOCK DIAGRAM
10
FN9203.1
June 17, 2005