ISL6291 Datasheet, PDF (3/11 Pages) Intersil Corporation – Li-ion/Li Polymer Linear Battery Charger

Block Diagrams
VIN ^x3
x3 _VBAT
V2P8
IREF
IMIN
TOEN
TEMP
REF
V_POR
V
CH
V
MIN
V
R EC H R G
I_R
Current
Source
100000:1
current
mirror
I
SEN
Inputok
+
- _VPOR
+
+
80mV
-
+
C- A
CHRG
TEMP
MON
+
VA _-
V
CH
I
SEN 2
T rickle/CC
I
MIN
+
-
MIN_I
Minbat
+
-
V
MIN
V2P8
V
TMIN
-
+
-
+
V
TMAX
U.T .
O.T .
LOGIC
Charge
S Q ^SET
RQ
CLR
Fault
S Q ^SET
RQ
CLR
COUNTER
OSC
V
R EC H R G
+
-
Recharge
CHRG
FAULT
SHDN
Inputok
STATUS
FAULT
EN
TIME
GND
3
FN9102.2
May 2, 2005