ISL6251 INTERSIL [Intersil Corporation], ISL6251 Datasheet - Page 9

• Manufacturer Part Number: ISL6251
• Description: Low Cost Multi-Chemistry Battery Charger Controller
• Manufacturer: INTERSIL [Intersil Corporation]

VCOMP
VCOMP
VCOMP
VCOMP
ACPRN
ACPRN
ACPRN
ACPRN
ACSET
ACSET
ACSET
ACSET
CELLS
CELLS
CELLS
CELLS
ICOMP
ICOMP
ICOMP
ICOMP
ACLIM
ACLIM
ACLIM
ACLIM
VADJ
VADJ
VADJ
VADJ
VREF
VREF
VREF
VREF
ICM
ICM
ICM
ICM
9
Current Limit Set
Current Limit Set
GND
GND
GND
GND
Current Limit Set
Current Limit Set
Reference
Reference
Reference
Reference
2.1V
2.1V
2.1V
2.1V
Voltage
Voltage
Voltage
Voltage
Selector
Selector
Selector
Selector
VDD
VDD
VDD
VDD
Adapter
Adapter
Adapter
Adapter
+
+
+
+
+
+
+
FIGURE 11. FUNCTIONAL BLOCK DIAGRAM
-
-
-
-
+
+
-
-
-
gm1
gm1
gm1
gm1
-
-
1.27V
1.27V
1.26V
1.26V
ISL6251, ISL6251A
CSON
CSON
Min
Min
Min
Min
Min
Min
Min
Voltage
Voltage
Voltage
Voltage
Voltage
Voltage
Voltage
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
-
-
CSIP
CSIP
CSIP
CSIP
-
-
0.25 V
0.25V
0.25 V
0.25V
V
V
V
V
×
×
CA2
CA2
CA2
CA2
+
+
20
20
CA2
CA2
CA2
CA2
-
-
-
-
+
+
+
+
×
×
gm3
gm3
gm3
gm3
CA1
CA1
CA1
CA1
CSOP
CSOP
19.9
19.9
Current
Current
Current
Current
Current
Current
CA2
CA2
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
CA2
CA2
CSIN
CSIN
CSIN
CSIN
Min
Min
Min
Min
Min
Min
+
+ +
-
-
+
+
-
-
-
-
-
-
gm2
gm2
gm2
gm2
CHLIM
CHLIM
CHLIM
CHLIM
+
+
+
+
+
+
+
-
-
-
-
-
-
-
PWM
PWM
PWM
PWM
PWM
PWM
PWM
Regulator
Regulator
Regulator
Regulator
Regulator
Regulator
Regulator
LDO
LDO
LDO
LDO
LDO
+
+
+
+
VDDP
VDDP
-
-
-
-
1.065V
1.065V
1.06V
1.06V
VDD
VDD
PHASE
PHASE
DCIN
DCIN
BOOT
BOOT
VDDP
VDDP
LGATE
LGATE
LGATE
LGATE
EN
EN
EN
EN
UGATE
UGATE
PGND
PGND
June 17, 2005
FN9202.1