Datasheet

USB100
USB500
V
REF-ILIM
USB-susp
ShortDetect
ShortDetect
T
J (REG)
T
J
V
DPPM
V
OUT
V
BAT(REG)
V
BAT (SC)
V
O(REG)
V
O (SC1)
OUT- SC1
BAT-SC
Q1
Q2
V
LOWV
V
RCH
I
NTC
V
HOT
V
COLD
t
DGL (NO-IN)
t
DGL(PGOOD)
t
BLK (OVP)
V
BAT
+V
IN-DT
V
UVLO
V
OVP
V
IN
Dynamically
Controlled
Oscillator
V
IPRECHG
V
ICHG
V
ISET
~100 mV
Fast- Charge
Timer
Pre -Charge
Timer
Halttimers
Timerfault
EN1
EN2
USBSuspend
EN2
CE
IN
EN1
EN2
CHG
PGOOD
TS
TD
bq24230
OUT
BAT
ISET
ILIM
TMR
ChargeControl
V
IN-LOW
V
BAT
OUT- SC2
Resettimers
t
DGL (TS )
Timersdisabled
I
BIAS-ITERM
ITERM
bq24232
V
OUT
Supplement
I
TERM- floating
t
DGL(SC2)
250 mV
40 mV
V
DIS(TS)
~3V
225 mV
2. .25 V
Fastcharge
225 mV
Precharge
CHARGEPUMP
t
DGL(RCH)
t
DGL2(LOWV)
t
DGL1(LOWV)
t
DGL(TERM)
bq24230
bq24232
SLUS821E –OCTOBER 2008–REVISED JANUARY 2014 www.ti.com
Simplified Block Diagram
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