ISL6253 Datasheet, PDF (10/22 Pages) Intersil Corporation – Highly Integrated Battery Charger for Notebook Computers

DCIN
ISL6253
SGATE CSIP CSIN DCSET
DCPRN
ICM
ACSET
ACPRN
ACLIM
ICOMP
VCOMP
VADJ
CELLS
VREF
CA1
1.26V
DCIN
+
CSON
-
+
- ^1.26V
ADAPTER
CURRENT LIMIT SET
2.1V
+
gm1
-
VOLTAGE
SELECTOR
BBiIaAsS
RReEgGuUlaLtAoTr OR
-
gm3
+
MIN.
CURRENT
BUFFER
MIN
VOLTAGE
BUFFER
+
0.25V _CA2
-
PWM
+
VDDP
-^-
UV
3.1V/CELL
VDD
gm2
+
ReEfFeEreRnEcNeCE
CChHaArgReGCEuCrrUenRtRSEeNt T SET
V_CA2
-
CA2
+
VDDP
BGATE
VDD
BOOT
UGATE
PHASE
LGATE
PGND
CSON
CSOP
GND
CHLIM
EN
FIGURE 16. BLOCK DIAGRAM
10