ISL6252 Datasheet, PDF (3/25 Pages) Intersil Corporation – Highly Integrated Battery Charger Controller for Notebook Computers

ISL6252, ISL6252A
ICM
ACSET
ACPRN
ACLIM
+
- 1.26V
VREF
152kΩ
152kΩ
ADAPTER
CURRENT
LIMIT SET
-
gm3
+
CSIP CSIN
+
-
X19.9
CA1
LDO
REGULATOR
DCIN
VDD
ICOMP
VCOMP
VADJ
CELLS
VREF
MIN
CURRENT
BUFFER
MIN
VOLTAGE
Σ
BUFFER
300kHz
RAMP
-
PWM
+
VREF
514kΩ
514kΩ
gm1
-
2.1V
VOLTAGE
SELECTOR
VDD
REFERENCE
-0.25
288kΩ
32kΩ
gm2
-
16kΩ
48kΩ
CA2
X19.9
-
+
GND
FB
CSON CSOP CHLIM
FIGURE 1. FUNCTIONAL BLOCK DIAGRAM
BOOT
UGATE
PHASE
VDDP
LGATE
PGND
1.065V
-
+
EN
3
FN6498.3
August 25, 2010