Datasheet

VCC
ACDRV
BATDRV
BTST
HIDRV
PH
REGN
LODRV
GND
bq24616
CE
ACP
ACN
VFB
SRP
6 V LDO
20XV(ACP-ACN)
+
-
V(SRP-SRN)
COMP
ERROR
AMPLIFIER
20µA
1V
VFB_REG
IBAT_ REG
SRN
VCC
VCC-6 V
LDO
STATE
MACHINE
LOGIC
BATTERY
DETECTION
LOGIC
VCC
PH
4.2V
+
-
BTST REFRESH
SYSTEM
POWER
SELECTOR
LOGIC
CE
145 degC
IC Tj
TSHUT
SRN+100 mV
VCC
SLEEP
LEVEL
SHIFTER
ACN
+
-
+
+
-
+
-
+
-
+
-
V(SRP-SRN)
CHG_OCP
+
-
160% X IBAT_REG
SYNCH
SRP-SRN
ISET1
ISET2
ACSET
IBAT_ REG
ISET1
ISET2
5 mV
20X
VFB
BAT_OVP
+
-
104% X VFB_REG
VCC
ACOV
+
-
V
ACOV
VREF
STAT 1
STAT1
20X
STAT 2
STAT2
3.3 V
LDO
VCC
VFB
LOWV
+
-
RCHRG
+
-
1.55V
+
-
50 mV
VFB
RCHRG
TERM
+
-
20XV(SRP- SRN)
ISET2
5
TERM
TERMINATE CHARGE
+
-
TTC
TTC
+
-
+
-
UVLO
V
UVLO
VCC
SLEEP
UVLO
VCC-6 V
VCC-6V
ACN-6V
ACN-6 V
LDO
ACN ACN-6 V
ACOV
PWM
CONTROL
LOGIC
+
-
PWM
+
-
+
-
+
-
PG
PG
+
-
CHARGE
20 µA
DISCHARGE
CHARGE
OR
DISCHARGE
8 mA
BAT_OVP
+
-
DISABLE
TMR/TERM
0.4 V
TTC
INTERNAL
REFERENCE
VREF
ACN-SRN
SRN+200 mV
+
-
ACN
Safety
Timer
TTC
FAULT
2 mA
FAULT
1M
CE
-
ISET1
2
VFB_REG
TS
VT1
+
-
VT4
VREF
VT5
+
-
+
-
SUSPEND
+
-
+
-
VT3
VT2
VT1, VT2
VT1, VT2
VT3, VT4, VT5
VFB_REG
2.05V
2.025V
2.1V
VT3, VT4, VT5
bq24616
SLUSA49B –APRIL 2010– REVISED OCTOBER 2011 www.ti.com
BLOCK DIAGRAM
Figure 13. Functional Block Diagram for bq24616
14 Submit Documentation Feedback Copyright © 2010–2011, Texas Instruments Incorporated
Product Folder Link(s): bq24616