ISL6256 Datasheet, PDF (3/26 Pages) Intersil Corporation – Highly Integrated Battery Charger with Automatic Power Source Selector for Notebook Computers

ISL6256, ISL6256A
ICM
SGATE CSIP CSIN
ACSET
ACPRN
+
- 1.26V
+
-
X19.9
CA1
+
1.26V -
DCSET
DCPRN
ACLIM
ICOMP
VCOMP
VADJ
CELLS
VREF
VREF
152kΩ
152kΩ
ADAPTER
CURRENT
LIMIT SET
-
gm3
+
MIN
CURRENT
BUFFER
MIN
VOLTAGE
Σ
BUFFER
CSON
-
+
LDO
REGULATOR
300kHz
RAMP
-
PWM
+
BGATE
DCIN
VDD
BOOT
UGATE
PHASE
VREF
514kΩ
514kΩ
gm1
-
2.1V
VOLTAGE
SELECTOR
VDD
REFERENCE
-0.25
288kΩ
32kΩ
16kΩ
48kΩ
gm2
-
CA2
X19.9
-
+
VDDP
LGATE
PGND
1.065V
-
+
EN
GND
FB
CSON CSOP CHLIM
FIGURE 1. FUNCTIONAL BLOCK DIAGRAM
3
FN6499.3
September 14, 2010