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BQ24040 Datasheet(PDF) 9 Page - Texas Instruments

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Part # BQ24040
Description  800mA Single-Input Single Cell Li-Ion Battery Charger With Auto Start
Download  31 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

BQ24040 Datasheet(HTML) 9 Page - Texas Instruments

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background image
OUT
Charge
Pump
IN
OUT
OUTREGREF
TJ°C
125°CREF
IN
IN
ISET
Charge
Pump
PRE-TERM
75mA
+
CHARGE
CONTROL
OUT
VTERM_EN
ISET2 (LO=ISET,HI=USB500,
FLOAT =USB100)
VCOLD-FLT
VHOT-45 C
o
VTTDM
VCE
TS/BAT_EN
5 A
m
45 A
m
VCLAMP = 1.4V
ColdTemperature
SinkCurrent
=45 A
m
LO =TTDMMODE
HI=CHIP DISABLE
OUT
CHG
ON:
OnDuring
1stChargeOnly
OFF:
+Increasedfrom 75 A to85 A for
m
m
1
st minuteofcharge.
+
_
+
_
+
_
+
_
+
_
+
_
InternalCharge
CurrentSense
w/ MultipleOutputs
USBSense
Resistor
USB100/500REF
+
_
1.5V
FASTCHARGE
PRE-CHARGE
PG
HI =SuspendCHG
VCOLD-10 C
o
VHOT-FLT
HI =HalfCHG(JEITA)
HI =4.06Vreg(JEITA)
VDISABLE
+
_
bq24041 ThisComparatorOnly – NoTSFeatures
ASI
ASO
OUT
+
-
80 mV
Input
Power
Detect
+
_
IN-DPMREF
0.9VFloat
bq24041
Only
Bq24040
Only
TS - bq24040
BAT_EN -bq24041
+
_
Disable
SinkCurrent
=20 A
m
200kW
Bq24040 isasshown
Bq24041 hasnoCurrentSinksandonly 5mA CurrentSource
X2Gain(1:2)
Term:Pre-CHGX2
TermReference
Pre-CHGReference
I
x1.5V
540 A
OUT
W
T C
J
o
150 C
ThermalShutdown
o
REF
IN
OVPREF
bq24040
bq24041
www.ti.com.................................................................................................................................... SLUS941A – SEPTEMBER 2009 – REVISED SEPTEMBER 2009
FUNCTIONAL BLOCK DIAGRAM
Copyright © 2009, Texas Instruments Incorporated
Submit Documentation Feedback
9
Product Folder Link(s): bq24040 bq24041


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