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bq24617 Datasheet(PDF) 2 Page - Texas Instruments

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Part # bq24617
Description  Stand-Alone Synchronous Switch-Mode Li-Ion or Li-Polymer Battery Charger with System Power Selector and Low Iq
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

bq24617 Datasheet(HTML) 2 Page - Texas Instruments

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RAC
0.010 W
Q1 (ACFET)
P
ACN
ACP
ISET2
ACSET
VREF
CE
VFB
TS
VCC
HIDRV
PH
BTST
REGN
LODRV
GND
SRP
SRN
P
PACK+
PACK-
SYSTEM
ADAPTER+
ADAPTER-
C4
0.1 µF
C2
0.1 µF
C3
C7
Q4
Q5
C6
L1
6.8 µH*
D1
BAT54
C5
C10
0.1 µF
TTC
CTTC
VREF
STAT2
Pack
Thermistor
Sense
BATDRV
ACDRV
bq24610
bq24617
P
Q2 (ACFET)
Q3 (BATFET)
VREF
ISET1
STAT1
VBAT
R9
9.31kW
R10
430kW
R1
100 kW
PG
ADAPTER +
Cff
22 pF
0.1 µF
1µF
C8
10 µF
1 µF
1 µF
RSR
0.010 W
C11
0.1 µF
C12
10 µF*
C13
10 µF*
R2
500 k
R1210kW
R1110 kW
R1310kW
R3
100 kW
R4
32.4 kW
R5
100 kW
R6
10kW
R7
100 kW
R8
22.1 kW
R14
100 kW
C14
0.1 mF
R15
100 kW
C15
0.1 µF
PwrPad
0.056 F
R16
100 W
C1
0.1 F
103AT
SI7617DN
SI7616DN
SIS412DN
SIS412DN
SI7617DN
C9
10 F
R17
10
R20
2
C16
2.2 F
R18
1k
R19
1k
D2
D3
D4
bq24610
bq24617
SLUS892 – DECEMBER 2009
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
DESCRIPTION (CONTINUED)
The bq24610/7 controls external switches to prevent battery discharge back to the input, connect the adapter to
the system, and to connect the battery to the system using 6-V gate drives for better system efficiency. The
bq24610/7 features Dynamic Power Management (DPM). These features reduce battery charge current when
the input power limit is reached to avoid overloading the AC adapter when supplying the load and the battery
charger simultaneously. A highly-accurate current-sense amplifier enables precise measurement of input current
from the AC adapter to monitor the overall system power.
TYPICAL APPLICATION
VIN=19V, 3-cell, Iadapter_limit=4A, Icharge=3A, Ipre-charge= Iterm=0.3A, 5 hour saftey timer
Figure 1. Typical System Schematic
ORDERING INFORMATION
ODERING NUMBER
PART NUMBER
IC MARKING
PACKAGE
QUANTITY
(Tape andReel)
bq24610RGER
3000
bq24610
OAS
bq24610RGET
250
24-PIN 4×4 mm2 QFN
bq24617RGER
3000
bq24617
OFB
bq24617RGET
250
2
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Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s): bq24610 bq24617


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