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| BQ24170 Datasheet, PDF (7/35 Pages) Texas Instruments – 1.6-MHz Synchronous Switch-Mode Li-Ion and Li-Polymer Stand-Alone Battery Charger | |||
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www.ti.com
bq24170
bq24172
SLUSAD2A â NOVEMBER 2010 â REVISED NOVEMBER 2010
USB
R11
5
Selectable
current limit
R5B
12.1k
ILIM_500mA
ACN
ACP
CMSRC
PVCC
BATDRV
ACDRV
1µ VREF
VREF
VREF
SW
R4
bq24172
100k
ISET
BTST
R5A
12.1k
ACSET
REGN
R6
400k
R7
100k
RT
103AT
VREF
R8
5.23k
R9
30.1k
C1 AVCC
1µ
OVPSET
PGND
SRP
TTC
SRN
R10
1.5k
VREF
D3
TS
FB
THERMAL
STAT PAD
System
4.7µ
3.3?H RSR: 20m VBAT
0.047?
0.1?
0.1?
10?10?
1?
R2
100k
R1
100k
Figure 4. Typical Application Schematic with Single Cell Unremovable Battery (USB with input OVP 8V,
selectable charge current limit of 900mA or 500mA, 0 â 45°C TS, system connected after sense resistor)
PART NUMBER
bq24170
bq24172
ORDERING INFORMATION(1)
PART MARKING
PACKAGE
ORDERING NUMBER
bq24170
24-Pin 3.5mmÃ5.5mm QFN
bq24170RGYR
bq24170RGYT
bq24172
24-Pin 3.5mmÃ5.5mm QFN
bq24172RGYR
bq24172RGYT
QUANTITY
3000
250
3000
250
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): bq24170 bq24172
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