Datasheet

OUT
Charge
Pump
IN OUT
OUTREG
REF
T
J
°C
125°C
REF
IN
IN
ISET
Charge
Pump
PRE-TERM
75mA
+
CHARGE
CONTROL
OUT
V
TERM_EN
ISET2 (LO=ISET,HI=USB500,
FLOAT =USB100)
V
COLD-FLT
V
HOT-45 C
o
V
TTDM
V
CE
TS
5 Am 45 Am
V
CLAMP
= 1.4V
ColdTemperature
SinkCurrent
=45 Am
LO =TTDMMODE
HI=CHIP DISABLE
OUT
CHG
ON:
OnDuring
1stChargeOnly
OFF:
+
Increasedfrom 75 A to85 A form m
1
st
minuteofcharge.
+
_
+
_
+
_
+
_
+
_
+
_
+
_
+
_
+
_
+
_
+
_
InternalCharge
CurrentSense
w/ MultipleOutputs
+
_
USBSense
Resistor
USB100/500
REF
+
_
1.5V
FASTCHARGE
PRE-CHARGE
PG
HI =SuspendCHG
V
COLD-10 C
o
V
HOT-FLT
+
_
+
_
HI =HalfCHG(JEITA)
HI =4.06Vreg(JEITA)
V
DISABLE
+
_
+
-
80 mV
Input
Power
Detect
+
_
IN-DPM
REF
0.9VFloat
TS - bq24090
+
_
Disable
SinkCurrent
=20 Am
Bq24090 isasshown
X2Gain(1:2)
Term:Pre-CHGX2
TermReference
Pre-CHGReference
I x1.5V
540 A
OUT
W
T C
J
o
+
_
150 C
ThermalShutdown
o
REF
IN
+
_
OVP
REF
bq24090, bq24091
bq24092, bq24093
www.ti.com SLUS968A –JANUARY 2010–REVISED FEBRUARY 2010
FUNCTIONAL BLOCK DIAGRAM
Copyright © 2010, Texas Instruments Incorporated Submit Documentation Feedback 9
Product Folder Link(s): bq24090 bq24091